Results 101 to 110 of about 79,537 (266)

Acetoacetates Derived From Vegetable Oils: A Platform for Tailor‐Made Vinylogous Urethane Foams

open access: yesAdvanced Functional Materials, EarlyView.
A renewable vegetable oil is converted into acetoacetate‐functionalized precursors for the preparation of catalyst‐free vinylogous urethane foams. Room‐temperature foaming with n‐pentane generates lightweight cellular materials, while the choice of amine enables control over foam structure and mechanical properties.
Krzysztof Polaczek   +8 more
wiley   +1 more source

Biotransformation of xenobiotics by mycelium of Laricifomes officinalis (Polyporales, Basidiomycota)

open access: yesUkrainian Botanical Journal
Laricifomes officinalis is known for producing biologically active pharmaceuticals. This species belongs to wood-decay fungi capable of biotransforming various xenobiotics. Despite this potential, the ability of L.
Bondaruk S.V.   +2 more
doaj   +1 more source

Ultrathin Amphipathic Dual‐Polymer Networks: Unlocking Hyper‐Permeable CO2 Capture via Solvent‐Mediated Poly(Ethylene Oxide) Amorphization

open access: yesAdvanced Functional Materials, EarlyView.
Hydrophilic PEO‐copolymers and hydrophobic PDMS are physically integrated via a compatibilizing solvent into an amphipathic dual‐polymer network with versatile interfacial affinity and completely amorphized PEO segments for hyper‐permeable CO2 transport.
Ji Wu   +9 more
wiley   +1 more source

Synthesis of α-Amino Amides via N,O-Acetals Derived from Weinreb Amides

open access: yes, 2016
An easy and straightforward synthesis of α-amino amides via a base-mediated rearrangement of modified Weinreb amides into N,O-acetals is presented.
Peter Somfai (1849024)   +1 more
core   +1 more source

Photo‐Switchable Molecular Module Programming PET Biodegradation in Aquatic Environments

open access: yesAdvanced Functional Materials, EarlyView.
We address the plastic durability paradox by integrating an itaconic acid–derived pyrrolidone module into polymer backbones. Sunlight in water triggers Norrish Type I ring‐opening and hydrophilization, enabling rapid biodegradation into nontoxic minerals.
Mohammad Asif Ali   +16 more
wiley   +1 more source

The study of the antimicrobial activity of 6-sulfonyl derivatives of 4-methyl-1,2- dihydroquinoline-2-one

open access: yesAnnals of Mechnikov's Institute, 2020
Experimental study of the antimicrobial activity of the nineteen new 6-R-sulfonyl derivatives of 4-methyl-1,2- dihydroquinolin-2-one has been carried out using the wells method and the serial dilution method in liquid medium.
T Tsapko
doaj  

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma   +8 more
wiley   +1 more source

Symmetrical and unsymmetrical α,ω-nucleobase amide-conjugated systems

open access: yesBeilstein Journal of Organic Chemistry, 2010
We present the synthesis and selected physicochemical properties of several novel symmetrical and unsymmetrical α,ω-nucleobase mono- and bis-amide conjugated systems containing aliphatic, aromatic or saccharidic linkages. The final stage of the synthesis
Sławomir Boncel   +4 more
doaj   +1 more source

Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing

open access: yesAdvanced Functional Materials, EarlyView.
This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein   +6 more
wiley   +1 more source

Highly Diastereoselective Synthesis of β-Hydroxy Amides from β-Keto Amides

open access: yes, 2004
b -Hydroxy amides with stereodefined geometry represent an important unit present in various natural products. The diastereo-selective preparation of amides carrying a secondary or tertiary alcohol in b -position is described ...
RINALDI, SAMUELE   +5 more
core   +1 more source

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