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显示 1-11 共 11 条结果 关于 "245615" 范围 论文
Justin D Smith et al.
Nature communications, 10(1), 1837-1837 (2019-04-25)
Photocatalytic polymers offer an alternative to prevailing organometallics and nanomaterials, and they may benefit from polymer-mediated catalytic and material enhancements. MPC-1, a polymer photoredox catalyst reported herein, exhibits enhanced catalytic activity arising from charge transfer states (CTSs) between its two
T Brooijmans et al.
Journal of chromatography. A, 1560, 63-70 (2018-05-19)
Pyrolysis - gas chromatography - (PyGC) is a common method to analyse the composition of natural and synthetic resins. The analysis of acid functionality in, for example, waterborne polyacrylates and polyurethanes polymers has proven to be difficult due to solubility
R R Annand et al.
Biochemistry, 35(14), 4591-4601 (1996-04-09)
In bee venom phospholipase A2, histidine-34 probably functions as a Brønsted base to deprotonate the attacking water. Aspartate-64 and tyrosine-87 form a hydrogen bonding network with histidine-34. We have prepared mutants at these positions and studied their kinetic properties. The
B Z Yu et al.
Biochemistry, 36(13), 3870-3881 (1997-04-01)
Interfacial catalytic constants for bee venom phospholipase A2 (bvPLA2) have been obtained for its action on vesicles of the anionic phospholipid 1,2-dimyristoylphosphatidylmethanol (DMPM) in the highly processive scooting mode. Spectroscopic measurements which directly measure transbilayer movement of membrane components show
Guido J Noguera et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 78, 190-197 (2015-07-27)
A set of 4-arylthiazolylhydrazones derived from 1-indanones (TZHs) previously synthesized and assayed against Trypanosoma cruzi, the causative agent of Chagas disease, were explored in terms of conformational analysis. We found that TZHs can adopt four minimum energy conformations: cis (A
A Parkinson et al.
The Journal of biological chemistry, 261(25), 11487-11495 (1986-09-05)
The mechanism by which 2-bromo-4'-nitroacetophenone (BrNAP) inactivates cytochrome P-450c, which involves alkylation primarily at Cys-292, is shown in the present study to involve an uncoupling of NADPH utilization and oxygen consumption from product formation. Alkylation of cytochrome P-450c with BrNAP
Koji Karasawa et al.
Analytica chimica acta, 954, 151-158 (2017-01-14)
Five components (hydrogen peroxide, methylglyoxal, dihydroxyacetone, fructose and glucose) of New Zealand manuka honey (Leptospermum scoparium) were analyzed using lucigenin chemiluminescence high-performance liquid chromatography (lucigenin-CL-HPLC). We focused on active oxygen species produced from the components in order to easily detect
M Ungureanu et al.
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 94(1), 157-160 (1990-01-01)
Continuing to present the results of the investigations carried out on the amphoteric ions intermediates of the N-heteroatomic system with 2 natrium atoms in positions 1, 4, new pyrasine derivatives synthetized with p-nitro-phenacyl bromide are described. The observations on their
Dana Ortansa Dorohoi et al.
Molecules (Basel, Switzerland), 26(13) (2021-07-03)
Two 4-tolyl-1,2,4-triazol-1-ium methylids, namely 4-tolyl-1,2,4-triazol-1-ium-phenacylid and 4-tolyl-1,2,4-triazol-1-ium-4'-nitro-phenacylid, are studied from solvatochromic point of view in binary solvent mixtures of water with ethanol and water with methanol. The contributions (expressed in percent) of the universal and specific interactions are separated from
A Parkinson et al.
The Journal of biological chemistry, 261(25), 11478-11486 (1986-09-05)
The alkylating agent 2-bromo-4'-nitroacetophenone (BrNAP) binds covalently to each of 10 isozymes of purified rat liver microsomal cytochrome P-450 (P-450a-P-450j) but substantially inhibits the catalytic activity of only cytochrome P-450c. Regardless of pH, incubation time, presence of detergents, or concentration
Hao Wang et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 34(11), 1297-1302 (2018-07-31)
A new highly selective and visible colorimetric fluorescent probe (probe 1) was developed to detect hydrazine (N2H4) concentration in real water samples. As different concentrations of N2H4 were added, the color of the probe solution was graded gradually from colorless
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