Results 131 to 140 of about 167,505 (302)
Chlorine‐Free Depolymerization of Commercial PMMA via Oxygen‐Centered Radicals
Angewandte Chemie, EarlyView.A new chlorine‐free photothermal method enables sustainable recycling of plastics with C–C backbones under mild conditions. Driven by an oxygen‐centered radical pathway with ppm levels of anthraquinone catalyst, it eliminates hazardous chlorinated solvents, achieving an impressive 97% depolymerization conversion.
Chih‐Yin Lin +5 more
wiley +2 more sources
FoodsPolymeric procyanidins (PPCs) constitute the major fraction of procyanidins, but they have poor bioactivity. The purpose of this study is to clarify the composition and content of PPCs from Vitis amurensis Rupr.
Xiangyun Ren +6 more
doaj +1 more source
Bottlebrush Polyolefin Sulfones as Triggerable and Degradable Pressure‐Sensitive Adhesives
Angewandte Chemie, EarlyView.A grafting‐through alternating copolymerization strategy yields poly(norbornene sulfone) bottlebrush polymers with high molar mass. These materials function as additive‐free pressure‐sensitive adhesives. The incorporation of cleavable sulfone units enables rapid breakdown under mild alkaline conditions, providing a pathway toward sustainable, high ...
Clark Vu +5 more
wiley +2 more sources
AlchemyTilapia fish scales are among the fishery wastes that have not been optimally utilized, even though they have economic potential when processed into chitosan.
Dhian Eka Wijaya +5 more
doaj +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 +7 more
wiley +1 more source
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 +3 more
wiley +2 more sources
Editorial: Lignin valorization: Recent trends and future perspective
Frontiers in Bioengineering and Biotechnology, 2023 Daochen Zhu +3 more
doaj +1 more source
On the Depolymerization of Actin Filaments [PDF]
, 2012 Actin is one of the most abundant and highly conserved proteins in eukaryotic cells. The globular protein assembles into long filaments, which form a variety of different networks within the cytoskeleton. The dynamic reorganization of these networks - which is pivotal for cell motility, cell adhesion, and cell division - is based on cycles of ...
openaire +1 more source
Metal-catalyzed plastic depolymerization
Cell Reports Physical Science, 2023 K. V. Khopade +2 more
semanticscholar +1 more source