Results 111 to 120 of about 64,444 (333)
Preparation of Quaternary ammonium salts of triterpenoids
, 2009 ) Conclusion CONCLUSIONS This doctoral thesis was focused onto the synthesis if new quaternary ammonium salts oÍ. triterpenoids Ířom lupane, oleanane and ursane family for in vilro assessment of ťollowing biological activities: anti-HIV, antimicrobial ...
Biedermann, David
core
Advanced Science, EarlyView.CO2 reduction in pure water is enabled by a rapid‐transport fixed‐charge interface that couples nanochannels with a cationic microenvironment. This design eliminates the mass transport plateau, stabilizes key reaction intermediates, and suppresses the hydrogen evolution reaction, ultimately achieving ampere‐level current densities and stable operation ...
Qiqi Wan +8 more
wiley +1 more source
OrganicsIndole heterocycles have an established reactivity, and these compounds are H-bond donors via a peculiar non-basic NH. However, the indole core has been scarcely employed in organocatalysis, with only a few examples relevant to electrophilic halogenation
Marcello Casertano +4 more
doaj +1 more source
Advanced Science, EarlyView.A one‐dimensional sp2‐carbon covalent organic framework with spatially segregated redox centers integrates a dual photosensitizing system and a cationic interface for synergistic photocatalysis. The material achieves exceptional palladium recovery (1749 mg g−1) and bisphenol A mineralization (0.1710 min−1) without sacrificial agents, demonstrating ...
Yi‐Ru Chen +9 more
wiley +1 more source
XRD Study of Hydrophlogopite Intercalated with Alkyl Quaternary Ammonium Salt
, 2010 Hydrophlogopite was modified with sodium and then organically intercalated with a series of alkyl quaternary ammonium salts. The organically intercalated samples were characterized by X-ray diffraction analysis (XRD) and the effect of alkyl quaternary ...
Tong Jiang Peng +3 more
core +1 more source
Advanced Science, EarlyView.A diluent‐free, customizable liquid–liquid phase separation (LLPS) platform enables highly efficient radioactive metal ion extraction and stripping. By encapsulating hydrophobic extractants into an ionic surfactant‐rich condensed phase, this LLPS system leverages synergistic electrostatic and coordination interactions.
Ruihan Yan +7 more
wiley +1 more source
Quaternary Trialkyl(polyfluoroalkyl)ammonium Salts including Liquid Iodides
, 2003 New quaternary ammonium salts that contain polyfluorinated alkyl substituents were prepared by the polyfluoroalkylation of tertiary amines with polyfluorinated alkyl iodides.
Gupta, Om D. +2 more
core
, 2013 RhoB, one of the upstream signaling proteins of the phosphatidylinositol-3- kinase (PI3K)/Akt pathway, is frequently mutated in human cancer. Based on a piperazine alkyl derivative that induced apoptosis via up-regulation of RhoB, we synthesized novel ...
S K Park +9 more
core +1 more source
Advanced Science, EarlyView.A pathogen‐centric antibody‐antibiotic conjugate (AZO‐AAC) releases antibiotics via bacterial azoreductase, independent of host‐lysosomal function. This mechanism achieves nanomolar eradication of both planktonic and intracellular methicillin‐resistant Staphylococcus aureus (MRSA).
Qi Cheng +13 more
wiley +1 more source
Effect of aminoacids on the fungicidal activity of quaternary ammonium salts
Acta Mycologica, 2013 Amphipatic compounds exhibit an antimicrobial action both on bacteria and fungi. It is caused by a penetrative property of hydrophobic carbon chain of the compuound into a plasma membrane as well as by additional interaction of membrane elements and a ...
Jerzy Piątkowski, Michał Świątek
doaj +1 more source