Near-Infrared-Induced High-Performance Antimicrobial Active Coating for Medical Textiles Based on Easy-to-Synthesize Natural Catechin with Full End of Life Circularity DOI

Zeliha Ece Ozcelik,

Buket Alkan Taş,

Necdet Ozcelik

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(49), P. 17936 - 17951

Published: Nov. 26, 2024

The near-infrared (NIR)-induced antimicrobial textile (CTex) exhibits significant and antibiofilm activity over 4log reductions (more than 99.99% killing efficiency) against methicillin-resistant S. aureus (MRSA), aureus, E. coli, C. albicans within seconds under 808 nm NIR-laser irradiation by rapidly reaching almost 180 °C. A simple yet effective preparation method for an intensely active photothermal polymer backbone from the natural compound catechin is presented. NIR-responsive was synthesized using a step-growth polymerization reaction between trimesoyl chloride. Features of this polymer, reported here first time, were systematically optimized: conditions, chemical structure, thermal properties, capabilities. enhanced formulation integrated into commercially available laboratory coat dip-coating method. neat coated products evaluated morphological analyses, as well resistance to washing, reusability, conversion NIR light energy. On aspect sustainability, CTex amenable straightforward, cost-effective, industry-friendly green recycling, which also indicated. This circular end-of-life recycling demonstrated dry extrusion system, without need catalysts or solvents, depolymerize containing polyethylene terephthalate constituent monomer, terephthalic acid with high-yield (97.9%) outputs.

Language: Английский

Biocatalytic recycling of plastics: facts and fiction DOI Creative Commons
Wolfgang Zimmermann

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Enzymatic recycling of plastic waste is attracting considerable attention as a novel strategy to advance circular economy. While currently limited polyesters, achieving economically viable biocatalytic processes remains key challenge.

Language: Английский

Citations

0
Discovery of two novel cutinases from a gut yeast of plastic-eating mealworm for polyester depolymerization DOI Creative Commons

Huang Tong,

Jingya Zhang,

Xuena Dong

et al.

Applied and Environmental Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Identification of novel plastic-degrading enzymes is crucial for developing enzymatic degradation and recycling strategies plastic waste. Here, we report the discovery two cutinases, SiCut1 SiCut2, from a yeast strain Sakaguchia sp. BIT-D3 was isolated gut plastic-eating mealworms. Their amino acid sequences share less than 25% identity with all previously described cutinases reveal conserved S-D-H catalytic triad unique GYSKG motif. recombinant proteins were successfully overexpressed in Pichia pastoris. The pH range both 4.0 to 11.0 temperature SiCut2 10°C 50°C 70°C, respectively. Both showed strong activity against apple cutin short-chain fatty esters p-nitrophenol glycerol, substantiating their classification as true cutinases. have been demonstrated exhibit efficient polycaprolactone (PCL) film, polybutylene succinate (PBS) polyester-polyurethane (PUR) foam. Molecular docking molecular dynamics simulations used elucidate underlying mechanisms observed thermal stability. This study shows that are yeast-derived potential depolymerization waste.IMPORTANCEThe identification critical addressing pervasive problem pollution. presents derived plastic-feeding Despite sharing sequence known remarkable capabilities various polyester plastics, including Our results provide insights into applications strategies. By harnessing microbiota organisms, this research lays foundation innovative enzyme-based solutions reduce waste promote sustainable practices management.

Language: Английский

Citations

0
Discovery of a polyurethane-degrading enzyme from the gut bacterium of plastic-eating mealworm DOI

Jiakang Ru,

Xuan Chen,

Xuena Dong

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136159 - 136159

Published: Oct. 17, 2024

Language: Английский

Citations

2
Two-step biocatalytic conversion of post-consumer polyethylene terephthalate into value-added products facilitated by genetic and bioprocess engineering DOI Creative Commons

Gina Welsing,

Birger Wolter,

Greta E K Kleinert

et al.

Bioresource Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131837 - 131837

Published: Nov. 1, 2024

Language: Английский

Citations

2
The Investigation of Morphological and Mechanical Properties of Polymer-Based Electrospun Nanofiber Coated Polystyrene and Recycled Polyethylene Terephthalate Composite Materials DOI
Kadir GÜNDOĞAN, Atike Ince Yardımcı, Yaser Açıkbaş

et al.

Journal of nano research, Journal Year: 2024, Volume and Issue: 84, P. 13 - 24

Published: Sept. 20, 2024

In this study, polystyrene (PS) and recycled polyethylene terephthalate (R-PET) materials were coated by electrospun polyacrylonitrile/ polyvinyl alcohol (PAN/PVA) PAN/ polyvinylidene fluoride (PVDF) nanofibers produced electrospinning method to produce new polymer composite materials. Nanofibers characterized SEM, FT-IR XRD confirmed the formation of PAN/PVA PAN/PVDF their beadless ordered morphology with an average diameter 188.95±17.12 263.44±45.46 nm, respectively. The effect nanofibrous coating on tensile properties hardness PS R-PET obtained plastic injection was investigated. samples for 1h 2h these compared mechanical properties. terms properties, among samples, PAN/PVDF-coated showed highest strength value 22.66 MPa elongation 8.49%. results that after elastic modulus, strength, at break all enhanced. analysis revealed enhancement while relatively low changes in values determined composites because rigid nature PS.

Language: Английский

Citations

0
Near-Infrared-Induced High-Performance Antimicrobial Active Coating for Medical Textiles Based on Easy-to-Synthesize Natural Catechin with Full End of Life Circularity DOI

Zeliha Ece Ozcelik,

Buket Alkan Taş,

Necdet Ozcelik

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(49), P. 17936 - 17951

Published: Nov. 26, 2024

The near-infrared (NIR)-induced antimicrobial textile (CTex) exhibits significant and antibiofilm activity over 4log reductions (more than 99.99% killing efficiency) against methicillin-resistant S. aureus (MRSA), aureus, E. coli, C. albicans within seconds under 808 nm NIR-laser irradiation by rapidly reaching almost 180 °C. A simple yet effective preparation method for an intensely active photothermal polymer backbone from the natural compound catechin is presented. NIR-responsive was synthesized using a step-growth polymerization reaction between trimesoyl chloride. Features of this polymer, reported here first time, were systematically optimized: conditions, chemical structure, thermal properties, capabilities. enhanced formulation integrated into commercially available laboratory coat dip-coating method. neat coated products evaluated morphological analyses, as well resistance to washing, reusability, conversion NIR light energy. On aspect sustainability, CTex amenable straightforward, cost-effective, industry-friendly green recycling, which also indicated. This circular end-of-life recycling demonstrated dry extrusion system, without need catalysts or solvents, depolymerize containing polyethylene terephthalate constituent monomer, terephthalic acid with high-yield (97.9%) outputs.

Language: Английский

Citations

0