Results 121 to 130 of about 47,136 (264)

All‐in‐One Intelligent Hemostatic Sponge: Rapid Hemostasis for Non‐Compressive Wounds With Synergetic Enhanced Antibacterial Efficacy and Self‐Reporting Biodegradation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Clinicians often concurrently tackle critical challenges including emergency hemorrhage, secondary infection, and the elusive tracking of biodegradation of conventional hemostatic agents for complex wounds. Here, we report an intelligent hemostatic sponge (spCS@AIE) by incorporating aggregation‐induced emission (AIE) nanoparticles with short‐wave ...
Zhicheng Liu, Yan Zhang, Mengmeng Wang, Ye Li, Heng Sun, Lanqiong Zhang, Xin Bai, Haicheng Wei, Zhi Wang, Hao Guan, Yanzi Xu, Dongfeng Dang, Lingjie Meng   +12 more
wiley   +1 more source

Synthesis and Characterization of Novel Pyridinium Salts of (E)-2-(Pyridin-4-ylmethylene)hydrazine-1-carboximidamide

Molbank
We report the synthesis and characterization of the novel pyridinium salts from (E)-2-(pyridin-4-ylmethylene)hydrazine-1-carboximidamide. The pyridinium salts were obtained via the reaction of guanylhydrazone derived from pyridine-4-carbaldehyde with ...
Fatemeh Ataie Alani, Fatemeh Ahmadian, Alireza Houshdar Tehrani, Salimeh Amidi   +3 more
doaj   +1 more source

Tellurium Electrochemistry: From Mechanistic Analysis in Diverse Electrolytic Media to Advanced Energy Storage Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
As a metalloid with broad prospects in advanced applications, Te has not been fully clarified in terms of its intricate electrochemical behaviors across varied systems. This review systematically integrates fundamental electrochemical mechanisms, reaction kinetics identifications, and device application insights, establishing a comprehensive framework ...
Meng Zhang, Jiguo Tu, R. Vasant Kumar, Libo Chen, Tangkai Wu, Lili Jiang, Shuqiang Jiao   +6 more
wiley   +1 more source

Pyridinium-activated alkyne-based spontaneous amino-yne click polymerization toward n-pi conjugated polyelectrolytes

Thanks to its high efficiency, excellent selectivity, simple operation and mild reaction conditions, the click polymerization has become a powerful tool for the synthesis of polymers.
Ben Zhong, Tang, Bingnan, Wang, Chunyang, Li, Wuhua, Liu, Anjun, Qin   +4 more
core   +1 more source

A Modular Synthesis of Isoindole/Indolizine Hybrids via the 1,3‐Dipolar Cycloaddition of Pyridine‐Based Mesoionics with Benzyne

European Journal of Organic Chemistry, EarlyView.
An approach to prepare pyrido[2,1‐a]isoindoles via the cycloaddition of pyridine‐based 1,3‐dipoles and benzyne is described, offering modular access to a range of substituted products by systematic tuning of the dipole. A modular strategy for the synthesis of fused indolizine/isoindole hybrids, pyrido[2,1‐α]isoindoles, via cycloaddition of pyridine ...
Samira Taghizadeh Nodehi, Mohammad Ghanbari, Bruce A. Arndtsen   +2 more
wiley   +1 more source

Synthesis, characterisation and magnetic behaviour of ionic metalloporphyrins: metal-tetrakis(N-octyl-4-pyridinium)-porphyrins with tetrabromoferrate(III) anions [PDF]

, 2013
A series of magnetic, ionic-substituted tetrapyridyl metalloporphyrins, [tetrakis(N-octyl-4-pyridinium)-metal-porphyrin][tetrabromoferrate(III)] 4 (metal=iron, cobalt, manganese, copper or zinc), have been synthesised.
Zhou, Qing, Zhou, Q, Lu, Xingmei, Shao, HW, Sun, ZC, Lu, XM, Zhou, Na, Zhou, N, Shao, Huawu, Sun, Zhicheng   +9 more
core  

Antibacterial Hydrogel Dressing With Ca2+‐Dependent Hyaluronidase Responsiveness for Accelerating Wound Healing via On‐Demand Release of AIE Photosensitizers

Exploration, EarlyView.
This study innovates a Ca2+‐responsive hydrogel dressing that releases AIE photosensitizers on‐demand. Low Ca2+ enhances bacterial hyaluronidase (HAase) activity, degrading hyaluronic acid dressing to trigger antibacterial ROS release, while high Ca2+ inhibits HAase, preventing overdosing.
Rongwei Cui, Hao Yang, Miaomiao Kang, Zhijun Zhang, Weilin Xu, Yang Jiang, Lizhou Xu, Xiao‐Yong Zhan, Luhan Zhang, Yunsheng Xu, Dong Wang, Ben Zhong Tang, Danyang Li   +12 more
wiley   +1 more source

Pyridinium ylids in synthesis. III. Synthesis of indolizines

, 1967
Treatment of pyridinium, quinolinium, and isoquinolinium ylids with acetylenes yields indolizine derivatives. Pyridinium phenacylid with iodine in dimethylacetamide gives 1,2,3-tribenzoylindolizine.
CA Henrick, E Ritchie, WC Taylor
core   +1 more source

Catalytic Functionalization of Unactivated π‐Bonds Enabled by Bidentate Directing Auxiliaries

Angewandte Chemie, Volume 138, Issue 28, 6 July 2026.
This review explores how bidentate directing auxiliaries have advanced transition‐metal catalysis for unactivated alkene/alkyne functionalization. By leveraging chelated intermediates, bidentate directing auxiliaries enable precise hydrofunctionalization, difunctionalization, and C─H activation of π‐bonds with unique selectivity and reactivity.
Seunghyeon Cho, Al Vicente Riano D. Lisboa, Juntao Sun, Taeho Kang, Keary M. Engle   +4 more
wiley   +2 more sources

Catechol‐Containing Poly(2‐isopropyl‐2‐oxazoline): Synthesis and Thermoresponsive Behavior in Aqueous Salt Solutions

Macromolecular Rapid Communications, EarlyView.
Polymers carrying catechol groups are interesting mussel‐inspired materials for wet adhesion applications or metal ion complexation for wastewater treatment. Here, catechol‐containing poly(2‐isopropyl‐2‐oxazoline)s were synthesized via microwave‐assisted cationic (co)polymerization and examined with regard to their thermoresponsive LCST behavior in ...
Niclas Madaj, Nils Lüdecke, Sergio Kogikoski Jr., Ilko Bald, Helmut Schlaad   +4 more
wiley   +1 more source