Results 71 to 80 of about 64,444 (333)

Synthesis and Antifungal Activity of Novel Tetrahydrogeranyl Quaternary Ammonium Salts

Natural Product Communications, 2022
Due to the excessive use of antifungal agents, drug resistance and ecological problems are increasing. Some antifungal agents are difficult to degrade and have high toxicity and several side effects.
Yun Peng, Jiayu Chang, Zhuangquan Xiao, Jiazong Huang, Ting Xu, Shangxing Chen, Guorong Fan, Shengliao Liao, Zongde Wang, Hai Luo   +9 more
doaj   +1 more source

Synthesis, physiochemical property and antimicrobial activity of novel quaternary ammonium salts. [PDF]

J Enzyme Inhib Med Chem, 2018
Twenty-four novel 5-phenyl-1,3,4-oxadiazole-2-thiol (POT) analogues, benzo[d]oxazole-2-thiol, benzo[d]thiazole-2-thiol and 5-methyl-1,3,4-thiadiazole-2-thiol-substituted N,N-bis(2-hydroxyethyl) quaternary ammonium salts (QAS) (5a-d, 6a-d, 7a-d, 10a-d ...
Xie X, Cong W, Zhao F, Li H, Xin W, Hou G, Wang C.   +6 more
europepmc   +2 more sources

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

Advanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang, Ye Yuan, Yuxiu Sun, Fei Shi, Chenyang Song, Weifan Wang, Qinghua Li, Menglong Sheng, Zhihua Qiao, Jingwei Hou, Anthony K. Cheetham, Zhi Wang   +11 more
wiley   +1 more source

New synthetic aliphatic sulfonamido-quaternary ammonium salts as anticancer chemotherapeutic agents

, 2013
RhoB is expressed during tumor cell proliferation, survival, invasion, and metastasis. In malignant progression, the expression levels of RhoB are commonly attenuated. RhoB is known to be linked to the regulation of the PI3K/Akt survival pathways.
D Song, J I Lee, Bo Kyung Kim, G Han, Mi Sun Won, C Oh, J S Yang, S Cui, H M Kim   +8 more
core   +1 more source

Nanomaterial Integration at Liquid–Liquid Interfaces for Green Catalysis

Advanced Materials, EarlyView.
Functional nanomaterials assembled at liquid–liquid interfaces create dual‐role platforms serving as emulsion stabilizers and catalytic sites, offering enhanced reaction kinetics with improved catalyst recovery and recyclability. This review examines design strategies, structure‐performance relationships, and industrial implementation prospects of ...
Bokgi Seo, Jaewon Shin, Minkyoung Jang, Kyoungho Choi, Tengfei Pang, Fangrui Zhong, Jin Woong Kim   +6 more
wiley   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

Advanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao, Chongyang Hao, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Shang Wang, Longqiu Li, Yanhong Tian, Andreu Cabot, Qing Sun   +8 more
wiley   +1 more source

Crystal structures of three new N-halomethylated quaternary ammonium salts

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the crystals of the title N-halomethylated quaternary ammonium salts, C19H23IN+·I−, (I) [systematic name: N-(4,4-diphenylbut-3-en-1-yl)-N-iodomethyl-N,N-dimethylammonium iodide], C20H25IN+·I−, (II) [systematic name: N-(5,5-diphenylpent-4-en-1-yl)-N ...
Carolina Múnera-Orozco, Rogelio Ocampo-Cardona, David L. Cedeño, Rubén A. Toscano, Luz Amalia Ríos-Vásquez   +4 more
doaj   +1 more source

Solvent-free ring opening reaction of epoxides using quaternary ammonium salts as catalyst

, 2009
Fogassy, Gabriella Pinel, Catherine Gelbard, GeorgesRing opening reaction of 1,2-epoxydodecane to the corresponding diacetate diester is described. Quaternary ammonium salts were found to be excellent catalysts for the acetylation reaction of the epoxide
Pinel, C., Fogassy, G., Gelbard, G.
core   +1 more source

Gut Mycobiota‐Associated Tryptophan Catabolites Protect Against Metabolic Dysfunction‐Associated Steatotic Liver Disease

Advanced Science, EarlyView.
ABSTRACT Accumulating evidence suggests that the intestinal microbiota participates in the progression of metabolic dysfunction‐associated steatotic liver disease (MASLD) through microbiota‐host interaction. However, the beneficial role of commensal mycobiota in MASLD progression remains poorly understood.
Shuping Qiao, Shuangya Fan, Juan Xu, Zhen Xu, Chen Peng, Junxing Qu, Ziqian Bing, Shizhen Zhou, Sunan Shen, Guifang Xu, Yue Zhao, Tingting Wang   +11 more
wiley   +1 more source

Interaction of Molybdo-Phosphoric and Molybdo-Antimono-Phosphoric Heteropoly Acids with Silica Gels Modified with Aliphatic and Heterocyclic Quaternary Ammonium Salts

Adsorption Science & Technology, 2011
The interaction of molybdo-phosphoric and molybdo-antimonophosphoric heteropoly acids with aliphatic (tetradecylammonium nitrate and trinonyloctadecylammonium iodide) and heterocyclic (lucigenine and safranine) quaternary ammonium salts immobilized onto ...
Olga A. Zaporozhets, Igor A. Kachan, Lionel S. Zinko, Julia P. Bas, Valentyn I. Davydov   +4 more
doaj   +1 more source