Results 111 to 120 of about 937 (222)

Environmental Identification of Novel Enzymes for Polyurethane and Polyamide Degradation

Angewandte Chemie, EarlyView.
Heteroatom‐containing plastics such as polyurethanes and nylons are produced at scale yet remain largely unrecycled. Biocatalysts offer a promising route to depolymerization under mild conditions. Here, we present a screening platform for the discovery of novel polyurethane‐ and nylon‐degrading enzymes from environmental samples and demonstrate ...
Malthe Kjær Bendtsen, Andreas Møllebjerg, Samuel Peña‐Díaz, Rosie Graham, Nicolai Claus Petersen, Bjørk Nolsøe Isaksen, Mathias Carstensen, Martin B. Johansen, Andreas Sommerfeldt, Allan R. Petersen, Iddi Khamisi Chuma, Cecilie Ryberg, Thomas Rea Wittenborn, Virginia Gichuru, Huabing Wang, Carsten Scavenius, Alexander Sandahl, Daniel E. Otzen   +17 more
wiley   +2 more sources

Antibacterial properties of novel transparent copper films: a potential new tool to reduce healthcare-associated infections in hospitals and healthcare facilities. [PDF]

BMC Microbiol
Umeda S, Shibata S, Koishikawa A, Watanabe T, Ohara H, Itoh N, Matsushima A.   +6 more
europepmc   +1 more source

Small‐Scale Magnetic Peristaltic Soft Robot With Mobility and Transport Capabilities

Advanced Intelligent Systems, EarlyView.
This study introduces a miniature, untethered soft magnetic microrobot with peristaltic capabilities for both locomotion and cargo transport. Eight helically magnetized elastomeric strips deform under rotating fields (10–80 mT, 1–5 Hz), enabling movement across rods and lumina at up to 4.1 body lengths min‐¹.
Mohammad Hasan Dad Ansari, Linda Paternò, Chenjun Wu, Veronica Iacovacci, Arianna Menciassi   +4 more
wiley   +1 more source

Isosteric Engineering of Enzymes: Overcoming Activity–Stability Trade‐Offs by Site‐Selective CH → N Substitutions

Angewandte Chemie, EarlyView.
Coupling biosynthetic noncanonical amino acid production with genetic code expansion enables site‐specific incorporation of azatryptophans into PET‐degrading enzymes (PETases). By isosteric single‐atom editing of a conserved tryptophan, AzaPETases break the activity–stability trade‐off, delivering higher catalytic efficiency at elevated temperature and
Elwy H. Abdelkader, Haocheng Qianzhu, Gottfried Otting, Thomas Huber   +3 more
wiley   +2 more sources

Modeling the Kinetics of Polyethylene Terephthalate and Polyesters with Terminal Hydroxyl Groups Transesterification Reactions. [PDF]

Polymers (Basel)
Kirshanov KA, Toms RV, Aliev GS, Ismaylov DA, Shagina NY, Sokolovskiy PV, Nizameeva GR, Gervald AY.   +7 more
europepmc   +1 more source

Polyethylene terephthalate glycolysis

Abstract.
Gabrič, Maja, Lavrič, Žan, Schwiderski, Martin, Marc, Laureline, Temmel, Erik, Grilc, Miha, Likozar, Blaž   +6 more
openaire   +1 more source

A Tert‐Alkyl Terephthalate Derivative as a Universal Degradable Unit for Condensation Polymers

Angewandte Chemie, EarlyView.
A sterically bulky dicarboxylic acid core bearing a tertiary alkyl ester enables photocatalytic C─O bond cleavage via generation of a stabilized tertiary alkyl radical. Incorporated into polyarylate, polyurethane, and polyester, this universal trigger facilitates efficient degradation under identical conditions (up to 99% within 2–4 h). Remarkably, the
Yasuyuki Nitta, Ryosuke Nishikuma, Souya Kouda, Masatoshi Ohyama, Meiki Shinoda, Tsuyoshi Taniguchi, Takashi Koike, Takashi Nishikata   +7 more
wiley   +1 more source

The toxicological impact of PET-MPs exposure on atherosclerosis: insights from network toxicology, molecular docking, and machine learning. [PDF]

Sci Rep
Wang Q, Liang H, Li L.
europepmc   +1 more source

PET-microplastics trigger endothelial glycocalyx loss via ER stress and ROS unleashing IL-1β-driven SMC switching and early aortic structural impairment. [PDF]

J Nanobiotechnology
Huo W, Qu J, Wang S, He M, Zeng Z, Kong D, Yuan L, Feng R.   +7 more
europepmc   +1 more source

The Action of Plastic Degrading Enzyme Is Accelerated Mainly Due to an Increase in Thermal Stability Rather Than by an Inherent Catalytic Effect. [PDF]

J Am Chem Soc
Nandi A, Warshel A.
europepmc   +1 more source