Results 81 to 90 of about 737,653 (267)

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source

Selective Oxidative Cleavage of Benzyl C–N Bond under Metal-Free Electrochemical Conditions

Molecules
With the growing significance of green chemistry in organic synthesis, electrochemical oxidation has seen rapid development. Compounds undergo oxidation–reduction reactions through electron transfer at the electrode surface. This article proposes the use
Jiawei Huang, Xiaoman Li, Ping Liu, Yu Wei, Shuai Liu, Xiaowei Ma   +5 more
doaj   +1 more source

Crystal structure of a new monoclinic polymorph of N-(4-methylphenyl)-3-nitropyridin-2-amine

Acta Crystallographica Section E, 2014
The title compound, C12H11N3O2, is a second monoclinic polymorph (P21, with Z′ = 4) of the previously reported monoclinic (P21/c, with Z′ = 2) form [Akhmad Aznan et al. (2010). Acta Cryst. E66, o2400].
Aina Mardia Akhmad Aznan, Zanariah Abdullah, Vannajan Sanghiran Lee, Edward R. T. Tiekink   +3 more
doaj   +1 more source

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

Advanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee, Henry Lee, Patricia Taladriz‐Blanco, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +5 more
wiley   +1 more source

2-Amino-6-chloropyridine–glutaric acid (1/1)

IUCrData, 2019
In the title 1:1 co-crystal [systematic name: 6-chloropyridin-2-amine–pentanedioic acid (1/1)], C5H5ClN2·C5H8O4, the pyridine ring is essentially planar, with a maximum deviation of 0.003 (1) Å. The base and acid molecules are linked via N—H...O and O—H..
R. Manickam, M. Prabhaharan, G. Jagadeesan, V. Rajakannan, G. Srinivasan   +4 more
doaj   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

Advanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim, Chanui Lee, Keunhong Jeong, Seonggi Kim, Hyunju Shin, Sunghan Kim, Youngho Jin   +6 more
wiley   +1 more source

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

Advanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez, Mulazim Hussain Asim, Shumaila Arshad, Gergely Kali, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

In Brief: Assessed by a teacher like me [PDF]

Amine Ouazad looks at the impact of race on pupils' grades in US elementary ...
Amine Ouazad
core  

Hitting times for special patterns in the symmetric exclusion process on Z^d

, 2003
We consider the symmetric exclusion process {\eta_t,t>0} on {0,1}^{Z^d}. We fix a pattern A:={\eta:\sum_{\Lambda}\eta(i)\ge k}, where \Lambda is a finite subset of Z^d and k is an integer, and we consider the problem of establishing sharp estimates for ...
Asselah, Amine, Pra, Paolo Dai
core   +4 more sources