Results 51 to 60 of about 20,444 (199)

Highly Enantioselective Dimerization of α,β-Enones Catalyzed by a Rigid Quaternary Ammonium Salt

open access: yes, 2016
The chiral quaternary ammonium salt 1 served as a phase-transfer catalyst for the enantioselective dimerization of α,β-enones, providing a route for the asymmetric syntheses of chiral 1,5-dicarbonyl compounds and α-alkylated γ-keto ...
Fu-Yao Zhang (2707912)   +1 more
core   +1 more source

Synthesis and Characterizaion of Adamantane-Containing Quaternary Ammonium Salts

open access: yes, 2011
To develop the potential use of adamantane derivatives in surfactant field, the adamantyl residue was introduced into the quaternary ammonium salt. The method involved synthesizing N-(1-adamantyl)-N, N-dimethylamine from 1-adamantine and quaternizing ...
Nian Yun Guan   +4 more
core   +1 more source

Ordered lamellar supermicroporous titania templating by rosin-derived quaternary ammonium salt. [PDF]

open access: yesPLoS ONE, 2017
By using dehydroabietyltrimethyl ammonium bromine (DTAB), a novel rosin-derived quaternary ammonium salt, as template and peroxotitanium acid as precursor, ordered lamellar supermicroporous titania has been synthesized via a hydrothermal process.
Fei Song   +4 more
doaj   +1 more source

Preparation of chitin-amphipathic anion/quaternary ammonium salt ecofriendly dressing and its effect on wound healing in mice

open access: yesInternational Journal of Nanomedicine, 2018
Daijun Zhou,1–3 Ruijia Yang,4 Tao Yang,1–3 Malcolm Xing,1–4 Gaoxing Luo1–3 1Institute of Burn Research, 2State Key Laboratory of Trauma, Burn and Combined Injury, 3Key Laboratory of Proteomics of Chongqing, Southwest Hospital ...
Zhou D, Yang R, Yang T, Xing M, Luo G
doaj  

THE ANTAGONISM OF ACETYLCHOLINE AND OF QUATERNARY AMMONIUM SALTS [PDF]

open access: yesQuarterly Journal of Experimental Physiology, 1937
1. The study of a number of antagonists in a variety of tissues shows that all drugs which antagonise acetylcholine also antagonise Me4N.2. The concentration of antagonist needed in any tissue to produce an equal intensity of antagonism is similar with acetylcholine and with Me4N.3.
A. J. Clark, J. Raventós
openaire   +1 more source

Flocculation of Escherichia coli Using a Quaternary Ammonium Salt Grafted Carboxymethyl Chitosan Flocculant

open access: yes, 2014
International audienceOnly few studies are available on bacteria removal efficiencies and antibacterial properties of flocculants, which is one of the important requirements in water treatment work. Escherichia coli (E.
Yang, Zhen   +5 more
core   +1 more source

Microalbuminuria sensitive near‐infrared AIE probe for point‐of‐care evaluating kidney diseases

open access: yesAggregate
Urinary microalbumin (mALB) serves as an exceptionally sensitive indicator for the early detection of kidney damage, playing a pivotal role in identifying chronic renal failure and kidney lesions in individuals.
Zhirong Zhu   +6 more
doaj   +1 more source

(E)-8-(4-(4-(Diphenylamino)styryl)phenoxy)-N,N,N-trimethyloctan-1-aminium Bromide

open access: yesMolbank
Structural optimization integrating triphenylamine and quaternary ammonium salt-based antimicrobial peptide mimics has yielded novel theranostic hybrid molecules.
Saiya Yang   +7 more
doaj   +1 more source

Scalable Synthesis of Salt-free Quaternary Ammonium Carboxylate Catanionic Surfactants

open access: yesActa Chimica Slovenica, 2020
Surfactants in commercial products commonly contain catanionic mixtures thus many studies of aqueous surfactant mixtures have been carried out. However, hardly any studies have been dedicated to pure catanionic surfactants often termed salt-free ...
Žiga Medoš   +5 more
doaj   +1 more source

Flocculation of Escherichia coli Using a Quaternary Ammonium Salt Grafted Carboxymethyl Chitosan Flocculant

open access: yes, 2016
Only few studies are available on bacteria removal efficiencies and antibacterial properties of flocculants, which is one of the important requirements in water treatment work. Escherichia coli (E.
Hu Yang (521488)   +5 more
core   +1 more source

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