Results 91 to 100 of about 2,838,820 (225)

The Role of Iron‐Hyponitrite Intermediates in Biology and Insights From Synthetic Model Complexes

open access: yesChemistry – A European Journal, Volume 32, Issue 34, 11 September 2026.
Despite the difference in active site architecture, NO reduction by different NOR enzymes is expected to be linked by a common intermediate: hyponitrite (N2O22−). However, experimentally, very little is known about the coordination chemistry of iron with hyponitrite and the expected Fe‐hyponitrite intermediates.
Michael O. Lengel, Nicolai Lehnert
wiley   +1 more source

Association analysis of polymorphic variants in ALDH7A1, AOC1, PSAP, ADCYAP1 genes involved in the histamine metabolism with asthma development in individuals from the republic of Bashkortostan

open access: yesЯкутский медицинский журнал
Many environmental and genetic factors are involved in asthma development, among which an important role in the disease formation and response to antihistamine therapy belongs to genes involved in the histamine metabolism (HRH1, HRH2, HRH3, HRH4, HDC ...
O. N. Savelieva   +7 more
doaj   +1 more source

Advances in Chitosan Nanoparticles: A Comprehensive Review of Properties, Synthesis, Characterization, Multidisciplinary Applications, and Future Perspectives

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 33, September 5, 2026.
This review highlights the synthesis of chitosan nanoparticles from natural sources, the thorough characterization of them, and use of microscopic and spectroscopic methods. It emphasizes that it has some indispensable properties such as being non‐toxic, antimicrobial, and capable of controlled drug release.
Mariam Sohail Mansoor   +6 more
wiley   +1 more source

Proteomic analysis of premature umbilical cord blood and its relationship with bronchopulmonary dysplasia

open access: yesItalian Journal of Pediatrics
Background Bronchopulmonary dysplasia (BPD) frequently occurs in preterm infants, causing significantly impaired lung function and increased mortality rates.
Jia Chen   +6 more
doaj   +1 more source

Transcriptome and Metabolome Analyses Reveal the Molecular Mechanisms of Albizia odoratissima’s Response to Drought Stress

open access: yesPlants
Albizia odoratissima is a deciduous tree species belonging to the family Leguminosae. It is widely distributed in the southern subtropical and tropical areas of China and has important ecological and economic value.
Shuoxing Wei   +6 more
doaj   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

open access: yesAdvanced Materials, Volume 38, Issue 51, 11 September 2026.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti   +8 more
wiley   +1 more source

One‐Pot Synthesis of Primary Amides From Benzylic, Heterobenzylic, and Cinnamyl Alcohols Through Biocatalytic Oxidation and Cu(II)‐Catalyzed Amidation

open access: yesChemCatChem, Volume 18, Issue 18, 28 September 2026.
This article reports a one‐pot, two‐stage chemoenzymatic synthesis of primary amides from benzylic, heterobenzylic, and cinnamyl alcohols. The method uses galactose oxidase from Fusarium sp. M3‐5 to oxidize alcohols to nitriles, followed by Cu(II)‐catalyzed hydrolysis to amides with N,N‐diethylhydroxylamine.
Marco Rabuffetti   +3 more
wiley   +1 more source

Characterization of Euphorbia characias latex amine oxidase.

open access: yes, 1998
A copper-containing amine oxidase from the latex of Euphorbia characias was purified to homogeneity and the copper-free enzyme obtained by a ligand-exchange procedure.
MEDDA, ROSARIA   +16 more
core   +2 more sources

Methamphetamine Enantiomers: From Chemical Synthesis to Biological Fate

open access: yesChirality, Volume 38, Issue 9, September 2026.
Methamphetamine is an amphetamine‐type stimulant characterized by a single stereogenic center, resulting in two enantiomers, (R)‐(−)‐methamphetamine and (S)‐(+)‐methamphetamine, with distinct biological and pharmacological profiles. These forms exhibit differences in central nervous system activity, metabolism, excretion, and overall physiological ...
Larissa Pires do Espírito Santo   +9 more
wiley   +1 more source

AOC1 Contributes to Tumor Progression by Promoting the AKT and EMT Pathways in Gastric Cancer

open access: yesCancer Management and Research, 2020
Fen Xu,1,2 Yun Xu,3 Jian-Hui Xiong,4 Jing-Hui Zhang,2 Jian Wu,2 Jie Luo,2 Jian-Ping Xiong1 1The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People’s Republic of China; 2Jiangxi Medical College, Shangrao, Jiangxi, People ...
Xu F   +6 more
doaj  

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