Results 71 to 80 of about 73,143 (258)

Investigating operational stability and causes of cofactor release in fold type I amine transaminase. [PDF]

Protein Sci
Abstract Amine transaminases (ATAs) are pyridoxal phosphate (PLP) dependent biocatalysts frequently employed in chiral amine synthesis. Yields of ATA‐catalyzed reactions often suffer from low enzyme operational stability due to weak interactions between the ATA and the aminated cofactor pyridoxamine phosphate (PMP), which can leak from the active site ...
Feng X, Chau W, Master ER.
europepmc   +2 more sources

Imidazole aldoximes effective in assisting butyrylcholinesterase catalysis of organophosphate detoxification. [PDF]

, 2014
Intoxication by organophosphate (OP) nerve agents and pesticides should be addressed by efficient, quickly deployable countermeasures such as antidotes reactivating acetylcholinesterase or scavenging the parent OP.
Amitai, Gabriel, Fokin, Valery V, Radić, Zoran, Sharpless, K Barry, Sit, Rakesh K, Taylor, Palmer   +5 more
core  

Enhanced Thermodynamic Stability of UO22+ Complex Through Structure Preorganization of N3O2‐Pentadentate Planar Ligand for Uranium Harvesting from Seawater

Advanced Science, EarlyView.
Thanks to the appropriate structure preorganization of an N3O2‐pentadentate planar ligand, 2,6‐bis(2‐hydroxyphenylmethylaminomethyl)pyridine (H2saldamp) exhibits the strongest coordination affinity to UO22+ (log βU = 33.60) compared to ligands developed for uranium harvesting from seawater to date, as well as good separability of UO22+ from other metal
Ryuto Nabata, Satoru Tsushima, Koichiro Takao   +2 more
wiley   +1 more source

Discovery of Quinazolone Pyridiniums as Potential Broad-Spectrum Antibacterial Agents

Molecules
The overprescription of antibiotics in medicine and agriculture has accelerated the development and spread of antibiotic resistance in bacteria, which severely limits the arsenal available to clinicians for treating bacterial infections.
Jie Dai, Qianyue Li, Ziyi Li, Zhonglin Zang, Yan Luo, Chenghe Zhou   +5 more
doaj   +1 more source

A rare positively charged nicotinic acid disulfide: 2,2′-dithiodinicotinic acid hydrochloride monohydrate

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title compound {systematic name: 3-carboxy-2-[2-(3-carboxypyridin-2-yl)disulfan-1-yl)]pyridin-1-ium chloride monohydrate}, C12H9N2O4S2+·Cl−·H2O, crystallizes in the triclinic space group P\overline{1}.
Alexander T. Chemey, Chad M. McGuire, Thomas E. Albrecht-Schmitt   +2 more
doaj   +1 more source

Disinfection effect of hexadecyl pyridinium chloride on SARS-CoV-2 in vitro

Intervirology, 2022
The novel coronavirus (COVID-19 or 2019-nCoV) is a respiratory virus that can exist in the mouth and saliva of patients and spreads through aerosol dispersion.
Ke-da Chen, Fei-ke Ma, Qing-jing Wang, Ying Wang, Xin-yi Zhuang, Xu-ning Zhang, Hai-yan Mao, Yan-jun Zhang   +7 more
doaj   +1 more source

Polystyrene Nanocomposites Based on Quinolinium and Pyridinium Surfactants [PDF]

, 2006
In this paper pyridine and quinoline-containing salts were employed to modify montmorillonite. TGA analysis shows that the quinolinium modified clay has a higher thermal stability than the pyridinium modified clay.
Chigwada, Grace, Wang, Dongyan, Wilkie, Charles A.   +2 more
core   +1 more source

The synthesis and characterization of polypeptide-adriamycin conjugates and its complexes with adriamycin. Part I [PDF]

, 1985
Poly(α-l-glutamic acid) (PGA) was grafted with amino acid and oligopeptide spacers up to 5 amino acids with the use of N,N'-carbonyldiimidazole and 2,3-dihydro-1,2-benz-isothiazole-3-on-1, 1-dioxide (saccharin) as an additive, and these polypeptides were
Eenink, M.J.D., Feijen, J., Heeswijk, W.A.R., Hoes, C.J.T., Potman, W., Stoffer, T.   +5 more
core   +2 more sources

3-(Ammoniomethyl)pyridinium bis(perchlorate) [PDF]

Acta Crystallographica Section E Structure Reports Online, 2013
In the title molecular salt, C6H10N22+·2ClO4−, the Cl—O bond lengths [anion 1: 1.369 (3)–1.415 (3); anion 2: 1.420 (2)–1.441 (2) Å] and the O—Cl—O angles [anion 1: 105.4 (2)–111.8 (4); anion 2: 107.8 (1)–110.3 (1)°] indicate a slight distortion of the perchlorate anions from regular tetra­hedral symmetry.
I. Bayar, Riadh Kefi, Pedro Sidonio Pereira da Silva, Manuela Ramos Silva, C. Ben Nasr   +4 more
openaire   +4 more sources

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives

Advanced Energy Materials, EarlyView.
Electrocatalytic CO2 reduction and CO2 batteries face challenges in achieving complete CO2 conversion with high conversion rates and Faradaic efficiency simultaneously. Existing systems compromise one for the other with incomplete CO2 conversion and inefficiencies, hindering practical applications. This perspective highlights state‐of‐the‐art progress,
Changfan Xu, Ping Hong, Yulian Dong, Marc Robert, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source