نتایج جستجو برای: trimethylammonium fluorochromatevi

تعداد نتایج: 742  

Journal: :General physiology and biophysics 1988
J Cirák P Balgavý F Devínsky

Effects of N-alkyl-N,N,N-trimethylammonium ions with different alkyl substituents (hexyl, nonyl, dodecyl, and octadecyl) on the lateral packing of lipids in dipalmitoylphosphatidylcholine (DPPC) dispersions in H2O was investigated by Raman spectroscopy in a spectral region of 2800--3100 cm-1 at temperatures between 22--70 degrees C. The lateral order parameter Slat calculated by empirical equat...

Journal: :British Journal of Pharmacology and Chemotherapy 1949

2016
Jos J A G Kamps Amjad Khan Hwanho Choi Robert K Lesniak Jürgen Brem Anna M Rydzik Michael A McDonough Christopher J Schofield Timothy D W Claridge Jasmin Mecinović

γ-Butyrobetaine hydroxylase (BBOX) is a non-heme Fe(II) - and 2-oxoglutarate-dependent oxygenase that catalyzes the stereoselective hydroxylation of an unactivated C-H bond of γ-butyrobetaine (γBB) in the final step of carnitine biosynthesis. BBOX contains an aromatic cage for the recognition of the positively charged trimethylammonium group of the γBB substrate. Enzyme binding and kinetic anal...

Journal: :Physical chemistry chemical physics : PCCP 2015
Blake J Plowman Kristina Tschulik Neil P Young Richard G Compton

Capping agents, key for nanoparticle stability, may hugely influence chemical behaviour. We show that differently capped gold nanoparticles, with either citrate or cetyl trimethylammonium bromide (CTAB) capping agents, show qualitatively different electron transfer properties. Specifically through cyclic voltammetry and nanoimpact studies the CTAB promoted dissolution of gold nanoparticles is s...

Journal: :Molecules 2017
Wei Ma Kezhan Shen Nan Xiang Shufen Zhang

In order to facilely achieve pretreatment and salt-free dyeing of greige knitted cotton fabrics, a combinative scouring, bleaching, and cationization pretreatment of the fabrics is designed in this study. The fabrics are first treated in a bath containing commercial scouring and bleaching agents, and then glycidyltrimethylammonium chloride (GTA) is directly added into the bath to achieve cation...

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