# PMNC Trinity College Dublin

> Polymeric Materials and Nanocomposites Group, School of Chemistry Trinity College Dublin, The University of Dublin


## Posts

- [New PhD in Sustainable Chemistry of Wood Residues](https://pmnc.ie/phd-researcher-minu-masliha-presents-innovative-research-at-materials-chemistry-poster-symposium-london-copy/): Congratulations to Minu Masliha, supervisor Ramesh Babu PMNC Trinity College Dublin, for her recent PhD viva defense on research exploring sustainable approaches to develop undervalorised bio-based forest materials with enhanced performance and environmental benefits. Special thanks to Department of Agriculture, Food and the Marine for funding, and to examiners, Paula Colavita and J.J. Leahy, for their time, discussions, questions, and useful suggestions during the viva process, which helped bring the process to fruition [touch wood]. To date this research has: [I] Made advances in tannin extraction and purification / bioprocessing from bark and investigated applications of this platform forest industry resource […]
- [PhD Researcher Minu Masliha Presents Innovative Research at Materials Chemistry Poster Symposium, London](https://pmnc.ie/phd-researcher-minu-masliha-presents-innovative-research-at-materials-chemistry-poster-symposium-london/): Minu Masliha, a PhD researcher from the NXTGENWOOD program at Trinity College Dublin, participated in the Materials Chemistry Poster Symposium organized by the Royal Society of Chemistry in London. Minu showcased their research through both a poster presentation and an oral talk titled “Valorising Tannins from Bark Residues for Improving Thermal Properties of Wood Fibres.” This work reflects the potential of sustainable chemistry to transform forestry residues into innovative and valuable solutions. 
- [Professor Ramesh Babu Highlights Plastic Pollution and Bio-Based Solutions at Coastwatch Autumn Shore Survey 2024](https://pmnc.ie/professor-ramesh-babu-highlights-plastic-pollution-and-bio-based-solutions-at-coastwatch-autumn-shore-survey-2024/): Professor Ramesh Babu delivered an insightful talk addressing the critical global issue of plastic pollution during the Coastwatch Autumn Shore Survey 2024 event. His presentation showcased the findings of marine litter analyses conducted by researchers Siva Ponnupandian and Jessica De Micco as part of the Coastal Plastic Litter Survey. He also emphasized the significance of emerging bio-based alternative plastics and their management, referencing projects funded by the Environmental Protection Agency (EPA) Ireland (BioPost) and the ReBioCycle initiative led by BiOrbic, Bioeconomy SFI Research Centre, under the guidance of Amanda Mathieson. The Coastwatch Autumn 2024 survey involved over 1,000 citizens who comprehensively […]
- [AMBER Centre Workshops Inspire Future Educators at Marino Institute of Education for Science Week 2024](https://pmnc.ie/amber-centre-workshops-inspire-future-educators-at-marino-institute-of-education-for-science-week-2024/): As part of the AMBER Centre’s #ScienceWeek 2024 celebrations, the team visited the Marino Institute of Education campus to engage with over 120 BEd4 student teachers. These interactive workshops were thoughtfully designed and facilitated by our researchers, Siva Ponnupandian, Saranya Ramesh Kumar, and Minu Masliha. This collaboration reflects our commitment to fostering curiosity and innovation in future educators while promoting science as a tool for discovery and creativity.
- [Innovative Solutions for a Circular Dairy Economy: Highlights from the Circular Dairy Summit 2024](https://pmnc.ie/innovative-solutions-for-a-circular-dairy-economy-highlights-from-the-circular-dairy-summit-2024/): At the Circular Dairy Summit 2024, organized by the Dairy Processing Technology Centre (DPTC), researchers showcased innovative solutions for a circular dairy economy. Minu Masliha, representing the NXTGENWOOD project, presented a poster on bio-based adsorbents for phosphate recovery from dairy wastewater. Dr. Mukesh Pednekar and Dr. Lakshmi Jayanarayan highlighted their work on upstream nutrient recovery from dairy wastewater, emphasizing the potential to transform waste into valuable resources. Together, these efforts illustrate the growing opportunities within the circular dairy economy. #CircularEconomy
- [Advancing Sustainability: PMNC Researchers at DPTC 2024 Conference](https://pmnc.ie/advancing-sustainability-pmnc-researchers-at-dptc-2024-conference/): Our research fellows, Dr. Mukesh Pednekar and Dr. Lakshmi Jayanarayan, attended the annual DPTC—Dairy Processing Technology Centre conference to showcase their work on scaling up sustainable processes and nutrient recovery for dairy wastewater valorization. Project lead Ramesh Babu also shared insights into innovative advancements in sustainable milk processing. #DPTC2024 #SustainableProcessing
- [Transition Year Student Explores STEM Research at CRANN Labs](https://pmnc.ie/transition-year-student-explores-stem-research-at-crann-labs/): Involving Transition Year (TY) student Shambhavi Naga Varanasi in our research activities at CRANN, Trinity College Dublin, has been an enriching experience. From exploring advanced microscopy techniques to discussing our STEM-driven projects, the exchange of ideas highlights the value of science communication and STEM education.
- [Siva Ponnupandian Engages Participants with Bio-Based Paint Activity at Let's Talk Science Festival](https://pmnc.ie/siva-ponnupandian-engages-participants-with-bio-based-paint-activity-at-lets-talk-science-festival/): Great job, Siva Ponnupandian, for collaborating with BiOrbic, the Bioeconomy SFI Research Centre, to showcase the Let’s Talk Science Festival at The Rediscovery Centre, Research Ireland. The hands-on activity of creating bio-based paint using simple kitchen ingredients was an exciting and engaging way to connect with participants. #LTSfestival #ballymunsciencefestival
- [AMBER Centre Celebrates Science Week 2024 with "Smalltalk – Big Ideas"](https://pmnc.ie/amber-centre-celebrates-science-week-2024-with-smalltalk-big-ideas-copy/): On November 11, 2024, the AMBER Centre celebrated #ScienceWeek 2024 with a “Small Talk – Big Ideas” event. The day featured a captivating short story launch, an intergenerational co-creation workshop, and an exciting hands-on planting activity. A special shout-out to our researchers, Aslı Çoban and Jessica De Micco from NXTGENWOOD, for 3D-printing biodegradable plant pots to bring the ‘Plant Our Ideas’ exhibit to life.
- [European Researchers’ Night: glimpse into the fascinating world of science](https://pmnc.ie/european-researchers-night-glimpse-into-the-fascinating-world-of-science/): PMNC group member Shital Potdar, representing our research group at #EuropeanResearchersNight 2024!   This event showcases groundbreaking research across Europe. The event was engaging with the community, sharing knowledge, and inspiring the next generation of scientists.   #PMNC #AMBER #TCD #ResearchMatters #ScienceForAll #PublicEngagement
- [We are Hiring - Postdoctoral Position in Lignin based polymers and Applications](https://pmnc.ie/we-are-hiring-postdoctoral-position-in-lignin-based-polymers-and-applications/): A highly motivated researcher with skills in organic and polymer synthesis is required. The CRESTIMB project is funded by Horizon Europe-DAFM under the Forestvalue2 programme. This project aims to develop an innovative timber system suitable for multistorey buildings with open spaces. The proposed system will include moment-resisting softwood or hardwood glue-laminated timber frames, innovative beam-to-column connections, and dowel cross-laminated floor panels. To ensure an increased service life and the possibility of reuse, the long-term behaviour of the system components will be investigated with an advanced numerical model, including the rheology of wood under variable indoor climates. This multidisciplinary project brings together a consortium […]
- [We are Hiring - Postdoctoral Position in Polymer processing/synthesis, degradation and characterisation](https://pmnc.ie/we-are-hiring-postdoctoral-position-in-polymer-processing-synthesis-degradation-and-characterisation/): An experienced researcher is required in polymer synthesis/processing, degradation, and characterisation of polymers, specifically bio-based polymers, for an EU-CBE funded Innovation action, ReBiocycle project   (https://www.cbe.europa.eu/projects/rebiocycle), co-funded by Horizon Europe. This EU project centred on developing a blueprint for recycling biobased plastics. ReBioCycle aims to demonstrate that bio-based biodegradable plastics can be kept in the cycle for as long as possible through innovative recycling technologies and that end-of-life bio-based biodegradable plastics can be used in the circular (bio)economy. This four-year multidisciplinary project brings together a consortium of 22 partners involving academic and research institutes, business associations, non-profit organisations and SMEs. This current project at TCD […]
- [Inspiring Tomorrow's Scientists: PMNC Researchers Engage Primary Students with Material Science Workshop](https://pmnc.ie/inspiring-tomorrows-scientists-amber-centre-researchers-engage-primary-students-with-material-science-workshop/): It has always been fantastic to interact with inquisitive minds. AMBER Centre researchers Siva Ponnupandian Jessica De Micco Saranya RameshKumar, PhD delivered material science workshop to primary school students and talked about their research on bioplastics, nanofibers, lignin and so on
- [Professor Ramesh Babu Secures Funding for Two Innovative Projects Under CBE JU](https://pmnc.ie/professor-ramesh-babu-secures-funding-for-two-innovative-projects-under-cbe-ju/): Glad to announce that Professor Ramesh Babu has 2 projects selected for funding under the Circular Bio-based Europe Joint Undertaking (CBE JU) The CBE JU has completed its evaluation, selecting 30 proposals to receive nearly €215.5 million in funding, with Professor Babu involved in two of these projects. The first project, led by James Gaffey (MTU) with Professor Babu as a partner, is titled “Rural BioRefineries – Green BioRefineries.” This project focuses on small-scale circular green biorefineries aimed at enhancing farmer sustainability and competitiveness, and building resilient rural areas. The second project which Prof Babu has secured funding for is ReBioCycle […]
- [Engaging Tour of Polymer Processing Labs for PLANCKS UK & Ireland Participants](https://pmnc.ie/engaging-tour-of-polymer-processing-labs-for-plancks-uk-ireland-participants/): Competitors and young scientists of PLANCKS UK & Ireland had a great time visiting our research laboratories on polymer processing. Thanks to Siva Ponnupandian for talking about the ongoing research projects on processing and recycling of biodegradable polymer composites
- [Science Talk with primary school children](https://pmnc.ie/science-talk-with-primary-school-children/): Science Talk with primary school children – our researcher Siva Ponnupandian had a fantastic day delivering AMBER Centre workshop as a part of school’s STEAM week. It was an amazing experience to interact with a bunch of inquisitive school students and talk about his research on bio-based plastics
- [AMBER conference 2024](https://pmnc.ie/amber-conference-2024/): Our PhD students Jessica De Micco Minu Masliha and Post-doc researchers Saranya RameshKumar, PhD Dr. Shital Potdar Siva Ponnupandian had an engaging day at AMBER conference, delivering a talk and poster presentations on their area of research
- [AMBER science workshop](https://pmnc.ie/amber-science-workshop/): Our researchers Aslı Çoban and Kona Mondal had a wonderful day showcasing their research projects on powder sheet additive manufacturing @PoSAddive and sustainable food packaging IMPRESS Project as a part of delivering AMBER science workshop to primary school students AMBER Centre Brian Callagy. More details on the PoSAddive project at https://pmnc.ie/maps/IMPRESS project at https://pmnc.ie/ipress/
- [Binder evaporation during powder sheet Additive Manufacturing](https://pmnc.ie/binder-evaporation-during-powder-sheet-additive-manufacturing/): Authors:J. Volpp, W. Zhang, W. Abbott, A. Coban, S. McConnell, S. Marola, R. Casati, R. Padamati, and R. Lupoi Publication Date: Journal: Volume: Issues: Pages: 324 – 328 Publisher: Solid Freeform Fabrication 2023: Proceedings of the 34th Annual InternationalSolid Freeform Fabrication Symposium – An Additive Manufacturing ConferenceReviewed Paper Several Additive Manufacturing methods are well established and found access into regular production inmultiple sectors. For processing metals, typically wire or powder is used as feedstock. Wire processing is typically used for comparably large structure building, while powder processes offer, in general, a more precise metal application. For Powder Bed Fusion processes, very […]
- [Powder sheets additive manufacturing: Principles and capabilities for multi-material printing](https://pmnc.ie/powder-sheets-additive-manufacturing-principles-and-capabilities-for-multi-material-printing/): Authors:Wenyou Zhang, Arnoldas Sasnauskas, Asli Coban, Silvia Marola, Riccardo Casati, Shuo Yin, Ramesh Padamati Babu, Rocco Lupoi Publication Date: 27/11/2023 Journal: Additive Manufacturing Letters Volume: 8 Issues: Pages: 100187 – 100194 Publisher: ELSEVIER In this work, a novel Metal Additive Manufacturing using Powder sheets (MAPS) method for printing multimaterial composites in one process is proposed. MAPS employs powder sheets (i.e. metal powder-polymer matrix flexible films) as the feedstock material. Its key advantages include a relatively rapid change from one material to another and a minimum wastage of materials due to the elimination of the powder bed. The powder sheets were fabricated using a ‘solvent casting’ method. They were then employed in a commercialised metal printer for […]
- [Powder sheet additive manufacturing of multi-material structures:Experimental and computational characterizations](https://pmnc.ie/powder-sheet-additive-manufacturing-of-multi-material-structuresexperimental-and-computational-characterizations/): Authors: Wenyou Zhang a, Xufei Lu, Asli Coban, Miguel Cervera, Michele Chiumenti, Arnoldas Sasnauskas, Chunjie Huang, Shuo Yin, Ramesh Padamati Babu, Rocco Lupoi Publication Date: 5/01/2024 Journal: Composites Part B Volume: 272 Issues: Pages:111203 – 111218 Publisher: ELSEVIER Selective laser melting (SLM) of multi-material structures (MMS) is of significance because it allows for bespoke structural innovation and high-accuracy process tailoring. However, most of the currently developed loose powder-based SLM techniques for MMS are limited by the long changeover time and potential cross-contamination between materials. To address these issues, a novel Metal Additive Manufacturing using Powder Sheets (MAPS) technique is proposed for […]
- [Metal additive manufacturing using powder sheets (MAPS) of HEACoNiCrFeMn: The effect of the polymer content on microstructure andmechanical properties](https://pmnc.ie/metal-additive-manufacturing-using-powder-sheets-maps-of-heaconicrfemn-the-effect-of-the-polymer-content-on-microstructure-andmechanical-properties/): Authors: Arnoldas Sasnauskasa, Asli Coban, Wenyou Zhanga, William M. Abbot, Ramesh Padamati Babu, Minh-Son Phamd, Rocco Lupoi Publication Date: 01/05/2024 Journal: CIRP Annals – Manufacturing Technology Volume: Issues: Pages:1-4 Publisher: ELSEVIER Metal additive using Powder Sheets is an innovative technology driven on eliminating loose powder in laser based additive manufacturing. The utilisation of a novel composite polymer-powder material enables the complete encapsulation of powder to mitigate safety risks and production issues associated with loose powder. This research demonstrates the versatility of this technology through varying the composition of the novel composite material, to deliver stronger, harder and more ductile materials. It […]
- [Material incorporation in powder sheet additive manufacturing toward lightweight designs for future mobility](https://pmnc.ie/material-incorporation-in-powder-sheet-additive-manufacturing-toward-lightweight-designs-for-future-mobility/): Authors: Wenyou Zhang, Daniele Pullini, Matteo Alberghini, Andrea Bertinetti, Alessio Tommasi, Asli Coban, Seán McConnell, Himani Naesstroem, Ramesh Padamati Babu, Joerg Volpp, Rocco Lupoi Publication Date: 16/05/2024 Journal: Journal of Laser Applications Volume: 36 Issues: 2 Pages: Publisher: AIP Publishing Additive manufacturing of AlSi10Mg has obtained increased attention due to its lightweight feature. However, handling of loose powder, efficient usage of feedstock, and powder recycling still remain major open challenges. Herein, a novel additive manufacturing method based on metal additive manufacturing using powder sheet (MAPS) is proposed, which leverages composite flexible films made of the feedstock of metal powder and a […]
- [Sequential extraction of fucoidan, laminarin, mannitol, alginate and protein from brown macroalgae Ascophyllum nodosum and Fucus vesiculosus](https://pmnc.ie/sequential-extraction-of-fucoidan-laminarin-mannitol-alginate-and-protein-from-brown-macroalgae-ascophyllum-nodosum-and-fucus-vesiculosus/): Authors:Viruja Ummat, SaravanaPeriaswamy Sivagnanam, Saranya Rameshkumar, Mukesh Pednekar, Stephen Fitzpatrick, Dilip K. Rai, Ramesh Babu Padamati, Colm O’Donnel, Brijesh Kumar Tiwari Publication Date: 24/11/2023 Journal: International Journal of Biological Macromolecules Volume: 256 Issues: Pages: 128195- 128204 Publisher: Elsevier The study involves development of a green biorefinery process for obtaining fucoidan, laminarin, mannitol, alginate and protein from dry and fresh Fucus vesiculosus and Ascophyllum nodosum using hydrochloric acid and a green extraction solvent. After the extraction of fucoidan which was the targeted biomolecule, an extract and byproduct (residual biomass) were obtained. The extract was passed through an ultrafiltration membrane, where fucoidan was obtained in the ultrafiltration retentate while ultrafiltration permeate was analysed for laminarin and mannitol. The residual biomass […]
- [We are Hiring - Research Fellow in Separation Technologies](https://pmnc.ie/we-are-hiring-research-fellow-in-separation-technologies/): Polymeric Materials and NanoComposites (PMNC) group (www.pmnc.ie)  at TCD led by Prof. Ramesh Babu. The mission is to provide world-class research in Polymeric Materials and separation sciences, to act as an intellectual powerhouse and a catalyst for the development of a smart, globally competitive industry sector in Ireland and Europe.  The overarching performance target of the group is to provide the R&D capability that will allow industries to become involved in using the most advanced polymeric materials and tools to create smart products and technology to compete effectively in all markets. We undertake various research and development activities to pursue this […]
- [𝐄𝐦𝐛𝐫𝐚𝐜𝐢𝐧𝐠 𝐁𝐢𝐨𝐩𝐚𝐜𝐤𝐚𝐠𝐢𝐧𝐠: 𝐀 𝐒𝐮𝐬𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐅𝐮𝐭𝐮𝐫𝐞 𝐟𝐨𝐫 𝐅𝐨𝐨𝐝 𝐏𝐚𝐜𝐤𝐚𝐠𝐢𝐧𝐠!](https://pmnc.ie/%f0%9d%90%84%f0%9d%90%a6%f0%9d%90%9b%f0%9d%90%ab%f0%9d%90%9a%f0%9d%90%9c%f0%9d%90%a2%f0%9d%90%a7%f0%9d%90%a0-%f0%9d%90%81%f0%9d%90%a2%f0%9d%90%a8%f0%9d%90%a9%f0%9d%90%9a%f0%9d%90%9c%f0%9d%90%a4/): Explore our latest blog post, authored by Ramesh Babu & Kona Mondal of PMNC Trinity College Dublin Discover how biopackaging is revolutionising the realm of sustainable packaging solutions in our blog post! 🌿 Flora, fauna, or microorganisms utilized in the development of biodegradable packaging solutions offers a greener alternative to traditional fossil-fuel-based plastics, addressing environmental concerns and promoting sustainability in the packaging industry. 💡 Learn about the benefits of compostable food packaging materials, waste diversion from landfills, nutrient-rich compost for soil, and consumer demand for eco-friendly alternatives https://impress-he.eu/2024/03/06/embracing-biopackaging-a-sustainable-future-for-food-packaging/.
- [Powder sheet additive manufacturing of multi-material structures: Experimental and computational characterizations](https://pmnc.ie/powder-sheet-additive-manufacturing-of-multi-material-structures-experimental-and-computational-characterizations/): Authors:Wenyou Zhang, Xufei Lu, Asli Coban, Miguel Cervera, Michele Chiumenti, Arnoldas Sasnauskas, Chunjie Huang, Shuo Yin, Ramesh Padamati Babu, Rocco Lupoi Publication Date: 05/01/2024 Journal: Composites Part B: Engineering Volume: 272 Issues: Pages: 111203-111218 Publisher: Elsevier Selective laser melting (SLM) of multi-material structures (MMS) is of significance because it allows for bespoke structural innovation and high-accuracy process tailoring. However, most of the currently developed loose powder-based SLM techniques for MMS are limited by the long changeover time and potential cross-contamination between materials. To address these issues, a novel Metal Additive Manufacturing using Powder Sheets (MAPS) technique is proposed for printing MMS within a single process. It utilizes flexible powder sheets as the feedstock material, which are composed of metal powder-polymer […]
- [Biodegradable plastic blends create new possibilities for end-of-life management of plastics but they are not a panacea for plastic pollution](https://pmnc.ie/biodegradable-plastic-blends-create-new-possibilities-for-end-of-life-management-of-plastics-but-they-are-not-a-panacea-for-plastic-pollution/): Authors: Tanja Narancic, Steven Verstichel, Srinivasa Reddy Chaganti, Laura Morales-Gamez, Shane T Kenny, Bruno De Wilde, Ramesh Babu Padamati, Kevin E O’Connor Publication Date: 29/08/2018 Journal: Environmental science & technology Volume: 52 Issues: 18 Pages: 104411-10452 Publisher: American Chemical Society Plastic waste pollution is a global environmental problem which could be addressed by biodegradable plastics. The latter are blended together to achieve commercially functional properties, but the environmental fate of these blends is unknown. We have tested neat polymers, polylactic acid (PLA), polyhydroxybutyrate, polyhydroxyoctanoate, poly(butylene succinate), thermoplastic starch, polycaprolactone (PCL), and blends thereof for biodegradation across seven managed and unmanaged environments. […]
- [Current progress on bio-based polymers and their future trends](https://pmnc.ie/current-progress-on-bio-based-polymers-and-their-future-trends/): Authors: Ramesh P Babu, Kevin O’connor, Ramakrishna Seeram Publication Date: 2013/12 Source: Progress in biomaterials Volume: 2 Pages: 1-16 Publisher: Springer Berlin Heidelberg This article reviews the recent trends, developments, and future applications of bio-based polymers produced from renewable resources. Bio-based polymers are attracting increased attention due to environmental concerns and the realization that global petroleum resources are finite. Bio-based polymers not only replace existing polymers in a number of applications but also provide new combinations of properties for new applications. A range of bio-based polymers are presented in this review, focusing on general methods of production, properties, and commercial applications. […]
- [Chemically functionalized carbon nanotubes and their characterization using thermogravimetric analysis, fourier transform infrared, and raman spectroscopy](https://pmnc.ie/chemically-functionalized-carbon-nanotubes-and-their-characterization-using-thermogravimetric-analysis-fourier-transform-infrared-and-raman-spectroscopy/): Authors: E Titus, N Ali, G Cabral, J Gracio, P Ramesh Babu, MJ Jackson Publication Date: 04/2006 Journal: Journal of Materials Engineering and Performance Volume: 15 Pages: 182-186 Publisher: Springer-Verlag This article reports key findings on the chemical functionalization of carbon nanotubes (CNT). The functionalization of chemical vapor-deposited CNT was carried out by treating tubes with polyvinyl alcohol through ultrasonication in water with the aid of a surfactant. The surfactant is expected to promote the unbundling of aggregated CNT. The characterization of functionalized samples using thermogravimetric analysis, Fourier transform infrared spectroscopy, and Raman spectroscopy revealed that the CNT were functionalized by […]
- [Development of a bioprocess to convert PET derived terephthalic acid and biodiesel derived glycerol to medium chain length polyhydroxyalkanoate](https://pmnc.ie/development-of-a-bioprocess-to-convert-pet-derived-terephthalic-acid-and-biodiesel-derived-glycerol-to-medium-chain-length-polyhydroxyalkanoate/): Authors: Shane T Kenny, Jasmina Nikodinovic Runic, Walter Kaminsky, Trevor Woods, Ramesh P Babu, Kevin E O’Connor Publication Date: 08/2012 Journal: Applied microbiology and biotechnology Volume: 95 Pages: 623-633 Publisher: Springer-Verlag Sodium terephthalate (TA) produced from a PET pyrolysis product and waste glycerol (WG) from biodiesel manufacture were supplied to Pseudomonas putida GO16 in a fed-batch bioreactor. Six feeding strategies were employed by altering the sequence of TA and WG feeding. P. putida GO16 reached 8.70 g/l cell dry weight (CDW) and 2.61 g/l PHA in 48 h when grown on TA alone. When TA and WG were supplied in combination, biomass productivity (g/l/h) was increased between 1.3- […]
- [Carbon-rich wastes as feedstocks for biodegradable polymer (polyhydroxyalkanoate) production using bacteria](https://pmnc.ie/carbon-rich-wastes-as-feedstocks-for-biodegradable-polymer-polyhydroxyalkanoate-production-using-bacteria/): Authors: Jasmina Nikodinovic-Runic, Maciej Guzik, Shane T Kenny, Ramesh Babu, Alan Werker, Kevin EO Connor Publication Date: 1/1/2013 Source: Advances in applied microbiology Volume: 84 Pages: 139-200 Publisher: Academic Press Research into the production of biodegradable polymers has been driven by vision for the most part from changes in policy, in Europe and America. These policies have their origins in the Brundtland Report of 1987, which provides a platform for a more sustainable society. Biodegradable polymers are part of the emerging portfolio of renewable raw materials seeking to deliver environmental, social, and economic benefits. Polyhydroxyalkanoates (PHAs) are naturally-occurring biodegradable-polyesters accumulated by […]
- [Up-cycling of PET (polyethylene terephthalate) to the biodegradable plastic PHA (polyhydroxyalkanoate)](https://pmnc.ie/up-cycling-of-pet-polyethylene-terephthalate-to-the-biodegradable-plastic-pha-polyhydroxyalkanoate/): Authors: Shane T Kenny, Jasmina Nikodinovic Runic, Walter Kaminsky, Trevor Woods, Ramesh P Babu, Chris M Keely, Werner Blau, Kevin E O’Connor Publication Date: 15/10/2008 Journal: Environmental science & technology Volume: 42 Issue: 20 Pages: 7696-7701 Publisher: American Chemical Society The conversion of the petrochemical polymer polyethylene terephthalate (PET) to a biodegradable plastic polyhydroxyalkanoate (PHA) is described here. PET was pyrolised at 450 °C resulting in the production of a solid, liquid, and gaseous fraction. The liquid and gaseous fractions were burnt for energy recovery, whereas the solid fraction terephthalic acid (TA) was used as the feedstock for bacterial production of […]
- [Bio-based and biodegradable polymers-State-of-the-art, challenges and emerging trends](https://pmnc.ie/bio-based-and-biodegradable-polymers-state-of-the-art-challenges-and-emerging-trends/): Authors: Saranya RameshKumar, P Shaiju, Kevin E O’Connor Publication Date: 01/1/2020 Source: Current Opinion in Green and Sustainable Chemistry Volume: 21 Pages: 75-81 Publisher: Elsevier Frontiers of bio-based and biodegradable polymers are constantly expanding in a view to achieve sustainability. Hence, designing sustainable bioplastics made of either bio-based or biodegradable polymers opens up opportunities to overcome resource depletion and plastic pollution. This review presents a broad perspective on state-of-the-art technologies in bioplastics manufacturing along with the challenges underlying their production, application and post-consumer waste management. Recent scientific advances are catalysing the sustainable design of bioplastics to overcome the present challenges of […]
- [PMNC group participated in the European Researchers Night 2023](https://pmnc.ie/pmnc-group-participated-in-the-european-researchers-night-2023/): Dr. Mukesh Padnekar, representing the PMNC group, participated in the European Researchers Night 2023
- [Plant oils and products of their hydrolysis as substrates for polyhydroxyalkanoate synthesis](https://pmnc.ie/plant-oils-and-products-of-their-hydrolysis-as-substrates-for-polyhydroxyalkanoate-synthesis/): Authors: M Walsh, K O’Connor, R Babu, T Woods, S Kenny Publication Date: 07/018/2015 Journal: Chemical and Biochemical Engineering Quarterly Volume: 29 Issue: 2 Pages: 123-133 Publisher: Hrvatsko društvo kemijskih inženjera i tehnologa Plant oils could provide a sustainable source of carbon for polyhydroxyalkanoate production as they are both renewable and inexpensive. No study to our knowledge has undertaken a comparative study of the use of major European and global commodity plants oils and products of their hydrolysis as substrates for medium chain length polyhydroxyalkanoate (mcl-PHA) production. There have been several studies which have investigated the use of plant oils and […]
- [Surfactant-mediated hydrothermal pretreatment of Ryegrass followed by enzymatic saccharification for polyhydroxyalkanoate production](https://pmnc.ie/surfactant-mediated-hydrothermal-pretreatment-of-ryegrass-followed-by-enzymatic-saccharification-for-polyhydroxyalkanoate-production/): Authors: Rashmi Kataria, Trevor Woods, William Casey, Federico Cerrone, Reeta Davis, Kevin O’Connor, Rohit Ruhal, Ramesh Babu Publication Date: 01/01/2018 Journal: Industrial Crops and Products Volume: 111 Pages: 625-632 Publisher: Elsevier Lignocellulosic biomass from non-food crops is an attractive renewable source of sugars. These sugars can be used as feedstock for the microbial production of different industrially relevant compounds. Delignification of lignocellulosic biomass is a major challenge in sugar extraction. In the present study, ryegrass biomass (non-food), which is high in carbohydrates, was pre-treated with the anionic surfactant sodium dodecyl sulphate (SDS) for effective delignification. Enzymatic hydrolysis of the pre-treated biomass […]
- [Activation behavior and dielectric relaxation in polyvinyl alcohol and multiwall carbon nanotube composite films](https://pmnc.ie/activation-behavior-and-dielectric-relaxation-in-polyvinyl-alcohol-and-multiwall-carbon-nanotube-composite-films/): Authors: G Chakraborty, AK Meikap, R Babu, WJ Blau Publication Date: 01/05/2011 Journal: Solid state communications Volume: 151 Issue: 10 Pages: 754-758 Publisher: Pergamon The dc and ac electrical transport property of Polyvinyl Alcohol-Multiwall Carbon Nanotubes (PVA-MWNT) composites has been investigated within a temperature range 77≤T≤300K and in the frequency range 20Hz–1MHz. The temperature variation of dc conductivity gives the presence of two different activation energies. The dielectric properties of the samples have been explained in terms of electric modulus vector.The dielectric relaxation has been explained in terms of interfacial polarization occurring in between the insulating PVA matrix and MWNT conductive […]
- [Amorphous solid dispersions of ketoprofen and poly-vinyl polymers prepared via electrospraying and spray drying: A comparison of particle characteristics and performance](https://pmnc.ie/amorphous-solid-dispersions-of-ketoprofen-and-poly-vinyl-polymers-prepared-via-electrospraying-and-spray-drying-a-comparison-of-particle-characteristics-and-performance/): Authors: Emer Browne, Romina Charifou, Zelalem Ayenew Worku, Ramesh P Babu, Anne Marie Healy Publication Date: 07/20/2020 Journal: International Journal of pharmaceutics Volume: 566 Pages: 173-184 Publisher: Elsevier The purpose of this work was to compare the particle characteristics and dissolution performance of amorphous solid dispersions (ASDs) of ketoprofen and vinyl-pyrrolidone based polymers prepared using electrospraying and spray drying methods. Solution characteristics (surface tension, viscosity and conductivity) were determined for ethanolic solutions containing different vinyl-pyrrolidone based polymers (PVP and PVPVA) and different ketoprofen to polymer mass ratios. The only statistically significant difference in solution properties between PVP and PVPVA systems was […]
- [Green extraction of soluble dietary fibre from coffee silver skin: impact of ultrasound/microwave‐assisted extraction](https://pmnc.ie/green-extraction-of-soluble-dietary-fibre-from-coffee-silver-skin-impact-of-ultrasound-microwave%e2%80%90assisted-extraction/): Authors: Le Wen Zhihang Zhang Ming Zhao Ramsankar Senthamaraikannan Ramesh Babu Padamati Da‐Wen Sun Brijesh K. Tiwari Publication Date: 2020 Journal: International Journal of Food Science +Technology Volume: 55 Pages: 2242-2250 Publisher: Wiely Ultrafiltration (UF) membranes based on poly(vinyl chloride) and poly(vinyl pyrrolidone) blends were prepared by the phase inversion method, and the factors governing membrane properties were investigated. The membranes were characterized by scanning electron microscopy and atomic force microscopy. The fouling characteristics of the membranes were determined by UF of aqueous solutions of bovine serum albumin (BSA) over a pH range of 2–9 and varying salt concentrations. The maximum […]
- [Preparation, structure, and transport properties of ultrafiltration membranes of poly (vinyl chloride) and poly (vinyl pyrrolidone) blends](https://pmnc.ie/preparation-structure-and-transport-properties-of-ultrafiltration-membranes-of-poly-vinyl-chloride-and-poly-vinyl-pyrrolidone-blends/): Authors: P Ramesh Babu, VG Gaikar Publication Date: 09/19/2000 Journal: Journal of applied polymer science Volume: 77 Issue: 12 Pages: 2606-2620 Publisher: John Wiley & Sons, Inc. Ultrafiltration (UF) membranes based on poly(vinyl chloride) and poly(vinyl pyrrolidone) blends were prepared by the phase inversion method, and the factors governing membrane properties were investigated. The membranes were characterized by scanning electron microscopy and atomic force microscopy. The fouling characteristics of the membranes were determined by UF of aqueous solutions of bovine serum albumin (BSA) over a pH range of 2–9 and varying salt concentrations. The maximum adsorption of the protein on the […]
- [Synthesis, electrical and magnetotransport properties of polypyrrole-MWCNT nanocomposite](https://pmnc.ie/synthesis-electrical-and-magnetotransport-properties-of-polypyrrole-mwcnt-nanocomposite/): Authors: G Chakraborty, K Gupta, AK Meikap, R Babu, WJ Blau Publication Date: 01/01/2012 Journal:Solid state communicationss Volume: 152 Issue: 1 Pages: 13-18 Publisher: Pergamon The present work describes the preparation of nanocomposites in which the multiwall carbon nanotubes (MWCNT) have been mixed with conducting polypyrrole (PPy) via an in situ chemical oxidative preparation method. To reveal their structural, morphological and thermal properties, the composites have been characterized by X-ray diffraction, field emission scanning electron microscope, Fourier transform infrared, and thermogravimetric analyses respectively. Electrical transport and magnetotransport properties have been investigated in the temperature range 77–300 K in the presence as well […]
- [Production of bacterial nanocellulose (BNC) and its application as a solid support in transition metal catalysed cross-coupling reactions](https://pmnc.ie/production-of-bacterial-nanocellulose-bnc-and-its-application-as-a-solid-support-in-transition-metal-catalysed-cross-coupling-reactions/): Authors: Sanja Jeremic, Lidija Djokic, Vladimir Ajdačić, Nina Božinović, Vladimir Pavlovic, Dragan D Manojlović, Ramesh Babu, Ramsankar Senthamaraikannan, Orlando Rojas, Igor Opsenica, Jasmina Nikodinovic-Runic Publication Date: 05/15/2019 Journal: International Journal of Biological Macromolecules Volume: 129 Pages: 351-360 Publisher: Elsevier Bacterial nanocellulose (BNC) emerged as an attractive advanced biomaterial that provides desirable properties such as high strength, lightweight, tailorable surface chemistry, hydrophilicity, and biodegradability. BNC was successfully obtained from a wide range of carbon sources including sugars derived from grass biomass using Komagataeibacter medellinensis ID13488 strain with yields up to 6 g L−1 in static fermentation. Produced BNC was utilized in straightforward catalyst preparation as a solid […]
- [Lupus retinopathy: a marker of active systemic lupus erythematosus](https://pmnc.ie/lupus-retinopathy-a-marker-of-active-systemic-lupus-erythematosus/): Authors: Gaurav Seth, KG Chengappa, Durga Prasanna Misra, Ramesh Babu, Pooja Belani, KC Shanoj, Gunjan Kumar, Vir Singh Negi Publication Date: 08/2018 Journal: Rheumatology international Volume: 38 Issue: 8 Pages: 1495-1501 Publisher: Springer Berlin Heidelberg Retinopathy in the context of systemic lupus erythematosus (SLE) is associated with severe disease and poorer prognosis. We studied retinopathy in our cohort of Indian lupus patients. Four hundred and thirty-seven patients fulfilling the Systemic Lupus International Collaborating Clinics-American College of Rheumatology-2012 criteria, attending the department of Clinical Immunology were enrolled under this cross-sectional study. A comprehensive clinical (including ophthalmological) examination and immunological profile were performed. […]
- [Saccharification of alkali treated biomass of Kans grass contributes higher sugar in contrast to acid treated biomass](https://pmnc.ie/saccharification-of-alkali-treated-biomass-of-kans-grass-contributes-higher-sugar-in-contrast-to-acid-treated-biomass/): Authors: Rashmi Kataria, Rohit Ruhal, Ramesh Babu, Sanjoy Ghosh Publication Date: 08/15/2013 Journal: Chemical engineering journal Volume: 230 Pages: 36-47 Publisher: Elsevier Economical production of biofuel is prerequisite to depletion of fossil fuel. In recent years, biomass of numerous food crops was used as a feedstock for bioethanol production. Unfortunately, due to limited availability as well as confliction with food, these sources may hold back for continuous production of bioethanol. Therefore, in the present study a waste land crop “Kans grass” was utilized as feedstock for microbial production of bio-ethanol. The Kans grass biomass obtained after NaOH pretreatment at optimum conditions […]
- [Synthesis and characterization of polyaniline/carbon nanotube composites](https://pmnc.ie/synthesis-and-characterization-of-polyaniline-carbon-nanotube-composites/): Authors: S Ghatak, G Chakraborty, AK Meikap, T Woods, R Babu, WJ Blau Publication Date: 01/15/2011 Journal: Journal of Applied Polymer Science Volume: 119 Issue: 2 Pages: 1016-1025 Publisher: Wiley Subscription Services, Inc., A Wiley Company The synthesis of polyaniline (PANI) containing different carbon nanotubes (CNTs) by in situ polymerization is reported in this study. The samples were characterized by X‐ray diffraction and scanning electron microscopy. Fourier transform infrared and ultraviolet–visible spectroscopy were used to determine the change in structure of the polymer/CNT composites. Thermogravimetric analysis showed that the composites had better thermal stability than the pure PANI. Photoluminescence spectra showed a blueshift […]
- [Electrospun membranes for desalination and water/wastewater treatment: a comprehensive review](https://pmnc.ie/electrospun-membranes-for-desalination-and-water-wastewater-treatment-a-comprehensive-review/): Authors: Mohammad Mahdi A Shirazi, Ali Kargari, Seeram Ramakrishna, James Doyle, Murugan Rajendrian, Ramesh Babu P Publication Date: 01/07/2017 Journal: Journal of Membrane Science and Research Volume: 3 Issue: 3 Pages: 209-227 Publisher: FIMTEC & MPRL With our growing global population and ever increasing economic expansion, we have entered a potential crisis point in balancing the supply and availability of fresh water resources [1, 2]. Continual changes in production, consumption, markets and political governance have led to an increase in demand for fresh water. The urban population is expected to grow from approximately 2,522 million in 1950 to 8,909 million in […]
- [Synthesis gas (Syngas)-derived medium-chain-length polyhydroxyalkanoate synthesis in engineered Rhodospirillum rubrum](https://pmnc.ie/synthesis-gas-syngas-derived-medium-chain-length-polyhydroxyalkanoate-synthesis-in-engineered-rhodospirillum-rubrum/): Authors: Daniel Heinrich, Matthias Raberg, Philipp Fricke, Shane T Kenny, Laura Morales-Gamez, Ramesh P Babu, Kevin E O’Connor, Alexander Steinbüchel Publication Date: 10/15/2016 Journal: Applied and environmental microbiology Volume: 82 Issue: 20 Pages: 6132-6140 Publisher: American Society for Microbiology The purple nonsulfur alphaproteobacterium Rhodospirillum rubrum S1 was genetically engineered to synthesize a heteropolymer of mainly 3-hydroxydecanoic acid and 3-hydroxyoctanoic acid [P(3HD-co-3HO)] from CO- and CO2-containing artificial synthesis gas (syngas). For this, genes from Pseudomonas putida KT2440 coding for a 3-hydroxyacyl acyl carrier protein (ACP) thioesterase (phaG), a medium-chain-length (MCL) fatty acid coenzyme A (CoA) ligase (PP_0763), and an MCL polyhydroxyalkanoate (PHA) […]
- [Pervaporation separation of butyric acid from aqueous and anaerobic digestion (AD) solutions using PEBA based composite membranes](https://pmnc.ie/pervaporation-separation-of-butyric-acid-from-aqueous-and-anaerobic-digestion-ad-solutions-using-peba-based-composite-membranes/): Authors: Santosh K Choudhari, Federico Cerrone, Trevor Woods, Kieran Joyce, Vincent O’Flaherty, Kevin O’Connor, Ramesh Babu Publication Date: 03/25/2015 Journal: Journal of Industrial and Engineering Chemistry Volume: 23 Pages: 163-170 Publisher: Elsevier Polyether block amides (PEBA) composite membranes were prepared by dispersing different two dimensional (2D) layered nanomaterials such as graphene, graphene oxide and molybdenum disulphide (MoS2) in PEBA matrix. These composite membranes were applied for the pervaporation separation of butyric acid produced by anaerobic digestion (AD) of perennial grass. Among all the tested membranes PEBA–graphene membrane showed the best performance with butyric acid flux og 24.3 g/m2h and separation factor of […]
- [Use of a mannitol rich ensiled grass press juice (EGPJ) as a sole carbon source for polyhydroxyalkanoates (PHAs) production through high cell density cultivation](https://pmnc.ie/use-of-a-mannitol-rich-ensiled-grass-press-juice-egpj-as-a-sole-carbon-source-for-polyhydroxyalkanoates-phas-production-through-high-cell-density-cultivation/): Authors: Federico Cerrone, Reeta Davis, Shane T Kenny, Trevor Woods, Anthonia O’Donovan, Vijai Kumar Gupta, Maria Tuohy, Ramesh P Babu, Padraig O’Kiely, Kevin O’Connor Publication Date: 01/09/2015 Journal: Bioresource Technology Volume: 191 Pages: 45-52 Publisher: Elsevier This study demonstrates the use of a mannitol rich ensiled grass press juice (EGPJ) as a renewable carbon substrate for polyhydroxyalkanoates (PHA) production in shaking flask experiments and fed-batch stirred tank reactor cultivations. Fed-batch cultivations of Burkholderia sacchari IPT101 using EGPJ as sole carbon source produced 44.5 g/L CDW containing 33% polyhydroxybutyrate (PHB) in 36 h, while Pseudomonas chlororaphis IMD555 produced a CDW of 37 g/L containing 10% of medium chain length […]
- [Conversion of waste cooking oil into medium chain polyhydroxyalkanoates in a high cell density fermentation](https://pmnc.ie/conversion-of-waste-cooking-oil-into-medium-chain-polyhydroxyalkanoates-in-a-high-cell-density-fermentation/): Authors: Carolina Ruiz, Shane T Kenny, Tanja Narancic, Ramesh Babu, Kevin O’Connor Publication Date: 12/20/2019 Journal: Journal of biotechnology Volume: 306 Pages: 9-15 Publisher: Elsevier Biodegradable and biocompatible polymers polyhydroxyalkanoates (PHAs) have a wide range of applications from packaging to medical. For the production of PHA at scale it is necessary to develop a high productivity bioprocess based on the use of a cheap substrate. The objective of the current study was to develop a high cell density bioreactor-based process for the production of medium chain length polyhydroxyalkanoate (mclPHA) with waste cooking oil as the sole carbon and energy source. A […]
- [Progressing plastics circularity: A review of mechano-biocatalytic approaches for waste plastic (re) valorization](https://pmnc.ie/progressing-plastics-circularity-a-review-of-mechano-biocatalytic-approaches-for-waste-plastic-re-valorization/): Authors: Efstratios Nikolaivits, Brana Pantelic, Muhammad Azeem, George Taxeidis, Ramesh Babu, Evangelos Topakas, Margaret Brennan Fournet, Jasmina Nikodinovic-Runic Publication Date: 06/22/2021 Journal: Frontiers in Bioengineering and Biotechnology Volume: 9 Pages: 696040 Publisher: Frontiers Media SA Inspirational concepts, and the transfer of analogs from natural biology to science and engineering, has produced many excellent technologies to date, spanning vaccines to modern architectural feats. This review highlights that answers to the pressing global petroleum-based plastic waste challenges, can be found within the mechanics and mechanisms natural ecosystems. Here, a suite of technological and engineering approaches, which can be implemented to operate in tandem […]
- [The anti-cancer activity of a cationic anti-microbial peptide derived from monomers of polyhydroxyalkanoate](https://pmnc.ie/the-anti-cancer-activity-of-a-cationic-anti-microbial-peptide-derived-from-monomers-of-polyhydroxyalkanoate/): Authors: Stephen O’Connor, Emilia Szwej, Jasmina Nikodinovic-Runic, Aisling O’Connor, Annette T Byrne, Marc Devocelle, Norma O’Donovan, William M Gallagher, Ramesh Babu, Shane T Kenny, Kevin E O’Connor Publication Date: 01/04/2013 Journal: Biomaterials Volume: 34 Issue: 11 Pages: 2710-2718 Publisher: Elsevier The biodegradable polymer medium chain length polyhydroxyalkanoate (mclPHA), produced by Pseudomonas putida CA-3, was depolymerised and the predominant monomer (R)-3-hydroxydecanoic acid (R10) purified. R10 was conjugated to a d-peptide DP18 and its derivatives. All peptides conjugated with R10 exhibited greater anti-cancer activity compared to the unconjugated peptides. Unconjugated and conjugated peptides were cytocidal for cancer cells. Conjugation of R10 to peptides […]
- [High cell density cultivation of Pseudomonas putida KT2440 using glucose without the need for oxygen enriched air supply](https://pmnc.ie/high-cell-density-cultivation-of-pseudomonas-putida-kt2440-using-glucose-without-the-need-for-oxygen-enriched-air-supply/): Authors: Reeta Davis, Gearoid Duane, Shane T Kenny, Federico Cerrone, Maciej W Guzik, Ramesh P Babu, Eoin Casey, Kevin E O’Connor Publication Date: 04/2015 Journal: Biotechnology and Bioengineering Volume: 112 Issue: 4 Pages: 725-733 High Cell Density (HCD) cultivation of bacteria is essential for the majority of industrial processes to achieve high volumetric productivity (g L−1 h−1) of a bioproduct of interest. This study developed a fed batch bioprocess using glucose as sole carbon and energy source for the HCD of the well described biocatalyst Pseudomonas putida KT2440 without the supply of oxygen enriched air. Growth kinetics data from batch fermentations were used for building […]
- [The conversion of BTEX compounds by single and defined mixed cultures to medium-chain-length polyhydroxyalkanoate](https://pmnc.ie/the-conversion-of-btex-compounds-by-single-and-defined-mixed-cultures-to-medium-chain-length-polyhydroxyalkanoate/): Authors: Jasmina Nikodinovic, Shane T Kenny, Ramesh P Babu, Trevor Woods, Werner J Blau, Kevin E O’Connor Publication Date: 09/2008 Journal: Applied microbiology and biotechnology Volume: 80 Pages: 665-673 Publisher: Springer Berlin Heidelberg Here, we report the use of petrochemical aromatic hydrocarbons as a feedstock for the biotechnological conversion into valuable biodegradable plastic polymers—polyhydroxyalkanoates (PHAs). We assessed the ability of the known Pseudomonas putida species that are able to utilize benzene, toluene, ethylbenzene, p-xylene (BTEX) compounds as a sole carbon and energy source for their ability to produce PHA from the single substrates. P. putida F1 is able to accumulate medium-chain-length (mcl) PHA when supplied with […]
- [Medium chain length polyhydroxyalkanoate (mcl-PHA) production from volatile fatty acids derived from the anaerobic digestion of grass](https://pmnc.ie/medium-chain-length-polyhydroxyalkanoate-mcl-pha-production-from-volatile-fatty-acids-derived-from-the-anaerobic-digestion-of-grass/): Authors: Federico Cerrone, Santosh K Choudhari, Reeta Davis, Denise Cysneiros, Vincent O’Flaherty, Gearoid Duane, Eoin Casey, Maciej W Guzik, Shane T Kenny, Ramesh P Babu, Kevin O’Connor Publication Date: 01/2014 Journal: Applied microbiology and biotechnology Volume: 98 Pages: 611-620 Publisher: Springer Berlin Heidelberg A two step biological process for the conversion of grass biomass to the biodegradable polymer medium chain length polyhydroxyalkanoate (mcl-PHA) was achieved through the use of anaerobic and aerobic microbial processes. Anaerobic digestion (mixed culture) of ensiled grass was achieved with a recirculated leach bed bioreactor resulting in the production of a leachate, containing 15.3 g/l of volatile fatty […]
- [Membrane characteristics as determinant in fouling of UF membranes](https://pmnc.ie/membrane-characteristics-as-determinant-in-fouling-of-uf-membranes/): Authors: P Ramesh Babu, VG Gaikar Publication Date: 01/06/2001 Journal: Separation and Purification Technology Volume: 24 Issue: 1-2 Pages: 23-24 Publisher: Elsevier Ultrafiltration of bovine serum albumin solutions using cellulose triacetate (CTA) and regenerated cellulose (RC) membranes showed that CTA membranes were more vulnerable to fouling than hydrophilic RC membranes. The flux decline for both membranes, which was more significant initially, could be attributed to concentration polarization near membrane surfaces and adsorption of the protein. Fouling of the membranes was characterized by the resistance of protein deposits to the permeation of pure water through fouled membranes. The CTA membranes gave more […]
- [Conversion of post consumer polyethylene to the biodegradable polymer polyhydroxyalkanoate](https://pmnc.ie/conversion-of-post-consumer-polyethylene-to-the-biodegradable-polymer-polyhydroxyalkanoate/): Authors: Maciej W Guzik, Shane T Kenny, Gearoid F Duane, Eoin Casey, Trevor Woods, Ramesh P Babu, Jasmina Nikodinovic-Runic, Michael Murray, Kevin E O’Connor Publication Date: 05/2018 Journal: Applied microbiology and biotechnology Volume: 98 Pages: 4223-4232 Publisher: Springer Berlin Heidelberg A process for the conversion of post consumer (agricultural) polyethylene (PE) waste to the biodegradable polymer medium chain length polyhydroxyalkanoate (mcl-PHA) is reported here. The thermal treatment of PE in the absence of air (pyrolysis) generated a complex mixture of low molecular weight paraffins with carbon chain lengths from C8 to C32 (PE pyrolysis wax). Several bacterial strains were able to […]
- [Productive and interactive day with Professor Ramesh Babu](https://pmnc.ie/productive-and-interactive-day-with-professor-ramesh-babu/): The postgraduate students from Trinity College Dublin, specializing in Circular Economy and Recycling Technologies, had a productive and interactive day with Professor Ramesh Babu 
- [Building with Wood - The Pathway to Net Zero.](https://pmnc.ie/building-with-wood-the-pathway-to-net-zero/): NXTGENWOOD PhD students attended an event at Coillte Avondale Forest Park, focused on "Building with Wood - The Pathway to Net Zero."
- [Workshop at the TCD campus for the Dairy Processing and Technology Centre (DPTC)](https://pmnc.ie/workshop-at-the-tcd-campus-for-the-dairy-processing-and-technology-centre-dptc/): Professor Ramesh Babu organized a workshop at the TCD campus for the Dairy Processing and Technology Centre (DPTC)
- [Lignin-based chemically modified materials](https://pmnc.ie/lignin-based-chemically-modified-materials/): PMNC - NXTGENWOOD PhD students, Jessica De Micco and Minu Masliha, presented their research on lignin-based chemically modified materials
- [BioPOST  EPA Researchers Award for 2022](https://pmnc.ie/biopost-epa-researchers-award-for-2022/): The PMNC group is excited to share that the BioPOST project, led by Prof. Ramesh Babu, has received the prestigious EPA Researchers Award for 2022
- [metal additive polymer sheets tailored for metal 3D printing](https://pmnc.ie/metal-additive-polymer-sheets-tailored-for-metal-3d-printing/): The PMNC group, under the leadership of Prof. Ramesh Babu and Aslı Çoban, played a significant role within the MAPS
- [PMNC-NXTGENWOOD visited MEDITE SMARTPLY](https://pmnc.ie/pmnc-nxtgenwood-visited-medite-smartply/): 4.	Researchers from PMNC-NXTGENWOOD recently visited MEDITE SMARTPLY, a market-leading and responsible manufacturer of sustainable timber construction panels.
- [Filtration membranes using industrial polymer waste](https://pmnc.ie/filtration-membranes-using-industrial-polymer-waste/): In a research article published in Membranes, Salaheen Bano and collaborators explored the fabrication and evaluation of filtration membranes using industrial polymer waste. 
- [Bio-based food packaging](https://pmnc.ie/bio-based-food-packaging/): In a recent research article published in the Journal of Applied Polymer Science, Dr. Rituparna Duarah and her collaborators focused..

## Pages

- [Rural BioReFarmeries](https://pmnc.ie/rural-biorefarmeries/): Rural BioReFarmeries The Rural BioReFarmeries project aims to showcase the first small-scale decentralised green biorefinery model and facilitate its widespread adoption to enhance local resilience, sustainability, and economic prospects throughout Europe’s rural grassland areas. By bringing together farmers, industry representatives and collaborators from all across Europe, the project demonstrates a farmer-centric bioeconomy. The project’s goal is to optimise grasslands and alternative green biomass feedstocks with a decentralised approach that empowers farmers through biomass value creation. This will allow for co-production of essential farm inputs (feed, energy and nutrients) and high-value products (human grade protein, flavours, anti-microbials and biomaterials) with industry partners. […]
- [Project Page Template](https://pmnc.ie/project-page-template/): Project Name Project description Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean eget risus vitae massa elementum ultrices. Vivamus scelerisque tellus vel mauris fermentum molestie. Aenean ac lorem nec elit fermentum euismod et vel ante. Praesent maximus justo quis neque dignissim, in imperdiet nisi congue. Aenean luctus lacus euismod lacinia elementum. Maecenas laoreet nunc eget egestas volutpat. Sed posuere velit sit amet orci ultricies, vel hendrerit erat lobortis. Interdum et malesuada fames ac ante ipsum primis in faucibus. Donec volutpat sapien at augue varius blandit sit amet eget libero. Morbi consectetur, neque a venenatis mattis, lectus neque mollis erat, nec […]
- [Facilities](https://pmnc.ie/facilities/): Facilities PMNC Facilities Bench-scale filtration units: Controlled filtration systems with crossflow membrane assembly for UF/MF/NF aimed at various separation applications. Forward osmosis membrane system- separation based on osmotic gradient. Pilot-scale filtration unit based on MF/UF/NF/RO system with process control. Automatic film applicator: Reliable and reproducible equipment for casting membranes/thin films of defined thickness, coating for surface modification. Electrospinning of non-woven nanofibers (25-2000 nm) from synthetic polymers, biopolymers, and polymer ceramic composite materials. Brabender melt processor: Used to melt process polymer composites up to 500 °C and Torque of 200Nm (Sample weight: 40 – 70g depending on sample density. Brabender twin-screw extruder: […]
- [Project 1](https://pmnc.ie/biopost-copy/): Project 1 The aim of BioPost is to create environmentally sustainable plastics that address the pressing issues associated with current plastic materials. This initiative will concentrate on utilizing readily available.Link 1  Link 2  Link 3 Project Website Contact us regarding this project. Project Form Name * Email * Message * If you are human, leave this field blank. Submit Δ
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- [News](https://pmnc.ie/news/): PMNC News
- [AgriChemWhey](https://pmnc.ie/agrichemwhey/): AgriChemWhey AgriChemWhey aims to establish an innovative, industrial scale biorefinery with integrated symbiotic industrial and agricultural value chains. This facility will have the capacity to valorise over 25,000 tonnes (100% dry matter) per annum of excess Whey Permeate (WP) and De-lactosed Whey Permeate (DLP), which are major by-products of dairy processing. These by-products are currently a challenge for the dairy industry due to unreliable disposal routes and pose sustainability issues for milk production expansion in Europe. The project’s goal is to convert WP and DLP into various high-value products, such as lactic acid, polylactic acid, minerals for human nutrition, and bio-based […]
- [nxtgenwood](https://pmnc.ie/nxtgenwood/): NXTGENWOOD The NXTGENWOOD research program, financially supported by the Department of Agriculture, Food, and the Marine (DAFM), is set to drive innovation across several domains. These include advancements in structural timbers, the development of eco-friendly adhesives and resins for bonding wood products like plywood and MDF, the extraction and synthesis of valuable biomaterials and biochemicals, and the creation of wood-based composites and biopolymers. Researchers are engaged in the extraction and purification of platform chemicals from wood waste. In essence, it involves a sustainable approach where the byproducts of one process become the inputs for subsequent processes, creating a more efficient and […]
- [MAPS](https://pmnc.ie/maps/): Maps / PosAddive Metal Additive using Powder Sheets / Powder Sheet Additive Manufacturing In collaboration with Prof. Rocco Lupoi, we have developed a MAPS (Metal Additive using Powder Sheets) process. This innovative approach replaces traditional metal powders in the conventional metal 3D printing process with powder sheets, which are based on the MAPS process that we pioneered.  Video In our ongoing project, PoSAddive (Powder Sheet Additive Manufacturing), we are developing and upscaling a novel disruptive metal additive manufacturing (AM) technology using flexible metal powder sheets. The powder material is attached using a newly developed binder technology, enabling local transfer by a […]
- [dptc project](https://pmnc.ie/dptc-project/): DPTC Project Sustainable Milk Processing DPTC has been established as a centre of excellence for dairy processing research and innovation. The Centre will help to fuel growth in the Irish dairy sector by performing research focused on cost-efficient processing, facilitating a step-change in environmental sustainability, and creating, validating, and commercializing a pipeline of science and technology-based manufacturing platforms for dairy ingredients. The foundation of the DPTC is a strong, long-term industry–academic collaborative partnership that will develop, build, and translate the knowledge and capabilities in dairy processing that are needed today and for the long-term growth development of the sector. DPTC, established […]
- [BioICEP](https://pmnc.ie/bioicep/): BioICEP The overarching goal of this project is to showcase a sustainable and smooth path towards achieving a circular economy for plastics. This will be accomplished by creating advanced, energy-efficient, environmentally responsible, and cost-effective processes for converting discarded plastic waste into valuable bioproducts and bioplastics that are in high demand. Project Website Contact us regarding this project. Project Form Name * Email * Message * If you are human, leave this field blank. Submit
- [Impress](https://pmnc.ie/ipress/): IMPRESS The IMPRESS initiative is rooted in the broader European Union (EU) Bioeconomy and Blue Growth Strategies. These strategies are aimed at promoting the advancement of “green” technology to create sustainable products and processes. Simultaneously, they aim to make a positive contribution to the overall well-being of European aquatic ecosystems. The focus is on fostering innovation that aligns with ecological sustainability, supports economic growth, and maintains the health of aquatic environments in Europe. Project Website Contact us regarding this project. Project Form Name * Email * Message * If you are human, leave this field blank. Submit Δ
- [BioPost](https://pmnc.ie/biopost/): BIOPOST The aim of BioPost is to create environmentally sustainable plastics that address the pressing issues associated with current plastic materials. This initiative will concentrate on utilizing readily available biodegradable polymers, including those found in local ecosystems, and develop composite materials suitable for packaging applications. Additionally, BioPost will assess the entire life cycle of these materials, including their potential for separation from mixed plastic waste, recyclability, compostability, and biodegradability under standard industrial conditions. The goal is to provide a viable and eco-friendly alternative to conventional plastics, thereby addressing environmental concerns and promoting sustainability. You can find additional information by clicking on […]
- [Additive Manufacturing  (AM)](https://pmnc.ie/additive-manufacturing-am/): Additive Manufacturing (AM) Developing materials for 3D printing and metal additive manufacturing Our current research activities are focused on exploring the combination and integration of Additive Manufacturing (AM) with other emerging fields of science and technology to realise radically new products, capabilities, and applications. Furthermore, our research is also focused on developing materials for FDM (fused deposition modelling) printing. This includes various polymers, polymer blends, and composite materials, based on biodegradable polymers. Contact Us Projects under Additive Manufacturing (AM) MAPS/PoSAddive View Project
- [Membranes and Down Stream Processing](https://pmnc.ie/membranes-and-down-stream-processing/): Membranes and Downstream Processing Fabrication of innovative membrane types We are engaged in diverse projects in the field of product recovery from biorefineries, including fermentation and anaerobic digestion processes, employing membrane-based technologies. Our group specializes in the fabrication of innovative membrane types, including electro-spun membranes, conductive membranes, and graphene-based membranes. These membranes are designed for applications in water purification, gas separation, and product recovery from a range of processes. Additionally, we are committed to gaining a deep understanding of the formation, structure, and properties of various membranes at a fundamental level, utilizing advanced characterization techniques. Contact Us Electrospinning of membranes PMMA […]
- [Pre-treatment and selective separation](https://pmnc.ie/pre-treatment-and-selective-separation/): Pre-treatment and Selective Separation Reduce fossil-based inputs Renewable carbon is a crucial resource in the transition to a net-zero economy, particularly in the effort to reduce fossil-based inputs in the chemicals and materials sector. Currently, we are assessing various pre-treatment technologies designed to extract valuable carbon from sustainable resources available on both land and sea. These resources include woody biomass, forest residues, algae, wastewater, plastic waste, and food waste. The pre-treatment technologies we are exploring encompass thermal hydrolysis, heterogeneous catalysis, ultrasonication, and cavitation technologies. Our goal is to effectively extract renewable carbon for further valorisation and use. Contact Us Projects under […]
- [Sustainable Polymers  Processing and  Characterisation](https://pmnc.ie/sustainable-polymers-processing-and-characterisation/): Sustainable Polymers Processing and Characterisation Development of sustainable polymer composites Our primary focus is the development of sustainable polymer composites based on biobased polymers, which have the potential to replace fossil-based polymers in a wide range of applications, particularly in the field of packaging. We employ conventional processing techniques, including melt processing, solution processing, and surface coatings, to manufacture composites that are scalable for industrial production. Producing these composites with the desired mechanical, thermal, and barrier properties while maintaining the biodegradability of biobased polymers is a challenging endeavour. Our efforts have led to the creation of novel polymer blends and nanocomposites, […]
- [Polymer  Synthesis  and Modification](https://pmnc.ie/polymer-synthesis-and-modification/): Polymer Synthesis and Modification Develop new functional (bio)polymers The group aims to develop new functional (bio)polymers with controlled architecture, molecular properties, and diverse functionality. Our focus is to:i) Enhance the mechanical and thermal propertiesii) Incorporate multifunctionalityiii) Control biodegradationOur approaches include employing conventional polymerization techniques such as suspension, emulsion, and Reversible Addition-Fragmentation Chain Transfer (RAFT) to better understand the structure-property relationships of polymeric materials. Contact Us Bio-Polymers Projects under Polymer Synthesis and Modification
- [Valorisation of organic  and woody biomass](https://pmnc.ie/valorisation-of-organic-and-woody-biomass/): Valorisation of organic and woody biomass Valorising forest and food residues We are dedicated to valorising forest and food residues by transforming them into value-added products, thus optimizing the resource’s value and addressing environmental and biodiversity concerns. The NXTGENWOOD initiative is focused on developing sustainable commercial solutions to maximize the potential of this valuable resource through advancements in wood product development and processing. A sustainable forestry sector is poised to play a pivotal role in Ireland’s efforts to meet national and international policy requirements, particularly in the context of a circular economy, climate change, and the EU Green Deal objectives. In […]
- [Publications](https://pmnc.ie/publications/): Publications Publications
- [Collaborations](https://pmnc.ie/collaborations/): Collaborations Collaborations Funding Agencies AMBER BIORBIC Science Foundation Ireland (SFI) Enterprise Ireland (EI) Environmental Protection Agency (EPA) Department of Agriculture Food and the Marine (DAFM) Horizon Europe Dairy Processing Technology Centre TEAGASC EIT RawMaterials Industrial Partners Merck Logitech Astellas MEDITE SMARTPLY  IPC Irish Bioeconomy Foundation Bioplastech Normec OWS Long Standing Collaborators Prof.Kevin O’Connor University College Dublin Contact Prof. Rocco Lupoi Trinity College Dublin STAM Research Group Contact Prof.Jasmina Nikodinovic  IMGGE, Serbia Contact Prof. Evangelis Topakas University of Athens, Greece Contact Prof. J. J Leahy University of Limerick Contact Prof. Vivek Ranade University of Limerick Contact Prof. Vincent O’Flaherty University of Galway […]
- [Dissemination and  Outreach](https://pmnc.ie/dissemination-and-outreach/): Dissemination & Outreach Dissemination & Outreach Welcome to the PMNC Research Group’s Dissemination and Outreach Page! Here, you’ll find key information about our EU/national projects, including LinkedIn profiles, social media links, and updates on events, publications, and news. Connect with us and explore the exciting world of our research and innovations. Social Media PMNC Research Group Agrichemway BioICEP BIOPOST DPTC IMPRESS NXTGENWOOD EU & National Funded Projects Events, Publications and News
- [Contact Us](https://pmnc.ie/contact-us/): Contact Us Get in touch with us Dr. Ramesh Babu Office postal address: School of Chemistry CRANN Naughton Institute, Trinity College Dublin, Dublin 2, D02 W085, Ireland Contact Us via EmailPrincipal Investigator Email: babup@tcd.ie Research Group Email: pmnc.tcd@gmail.com Lab AddressCRANN – Unit 9 AMBER Polymer Lab, Trinity Enterprise Centre, Pearse St, Dublin 2, D02AK60, Ireland
- [Gallery](https://pmnc.ie/gallery/): Gallery PMNC Gallery 4 13 10 2 1 8 9 5 Group Photo 7 3
- [Opportunities](https://pmnc.ie/opportunities/): Opportunities PMNC Opportunities PhD and post-doctoral positions Current Vacancies: here will go current vacancies of PMNC
- [Group Members](https://pmnc.ie/group-members/): Group Members PMNC Group Members Prof. Ramesh Babu Prof. Ramesh Babu earned his degree from the University Department of Chemical Technology (UDCT) in 1998. He currently leads the Polymeric Materials and Nanocomposites (PMNC) group at the School of Chemistry, Trinity College Dublin. His current research in advanced polymeric materials focuses on addressing global challenges related to functional materials, clean water, biobased polymers from renewable resources, and the production of chemical building blocks using waste as a resource. READ FULL BIO Current Members Jessica De Micco NXTGENWOODMsCPhD StudentEnvironmental chemistry, Polymer Composting, Wood Chemistry Parul Johar BiOrbicPhDPostdoc Research FellowSustainable synthesis, catalysis, bio-based materials, […]
- [About Us](https://pmnc.ie/about-us/): About Us We are PMNC Who we are and what we do. Polymeric Materials and NanoComposites (PMNC) Group, led by Prof. Ramesh Babu and affiliated to the School of Chemistry and CRANN at Trinity College, Dublin. PMNC is primarily engaged in fundamental and applied research of polymeric materials. Our mission is to develop high-performance polymer-based materials for various applications across multiple sectors, including polymer composites, biodegradable polymers, sustainable materials, membrane separation processes and technology transfer. Research Areas Welcome to Ramesh’s research Group Polymer Synthesis and Modification The group aims to develop new functional (bio)polymers with controlled architecture, molecular properties, and diverse […]
- [Home](https://pmnc.ie/): Welcome to PMNC Polymeric Materials and Nanocomposites Group (PMNC), School of ChemistryTrinity College Dublin, The University of Dublin What we do PMNC is primarily engaged in fundamental and applied research of polymeric materials. Our mission is to develop high-performance polymer-based materials for various applications across multiple sectors, including polymer composites, biodegradable polymers, sustainable materials, membrane separation processes and technology transfer. read more Research Areas Pre-treatment and Selective Separation Sustainable Polymers Processing and Characterisation Polymer Synthesis and Modification Membranes and Down Stream Processing (electrospinning) Additive Manufacturing (AM) Valorisation of organic and woody biomass Latest News Yüksek riskli oyunlarda 7slots ile kazanma stratejileri […]
- [Coming soon](https://pmnc.ie/elementor-7/): The PMNC website is coming soon!


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