Results 151 to 160 of about 81,435 (262)

Stable Isotope Composition of Skin Layers Confirms Trophic Differentiation of Baird's and Sato's Beaked Whales (Berardius spp.) in the Western North Pacific. [PDF]

Rapid Commun Mass Spectrom
Filatova OA, Fedutin ID, Bobyr IG, Titova OV, Ragimov MO, Hoyt E, Tsurikov SM, Tiunov AV.   +7 more
europepmc   +1 more source

Janus Reactivity of a Mononuclear Non‐Heme Iron(III)‐Peroxo Complex Toward Indole Oxidation

Angewandte Chemie, EarlyView.
The iron(III)‐peroxo complex [FeIII(O2)(12‐TMC)]+ exhibits bifurcating pathways in indole oxidation. N─H indoles undergo N─H H‐atom abstraction, supported by a KIE of 5.2 for N─H/N–D 2,3‐dimethylindoles, whereas N‐methylindoles react via electrophilic addition of the iron‐peroxo group to the C2–C3 double bond of the indole ring, forming iron ...
Wenjuan Zhu, Peng Wu, Binju Wang, Kallol Ray, Wonwoo Nam   +4 more
wiley   +1 more source

Stable Isotope Labeling to Track De Novo Fatty Acid Synthesis in Mouse Cartilage-Enriched Joint Tissue In Vivo: A Practical Workflow. [PDF]

J Orthop Res
Moradi S, Binoy A, Zhu S.
europepmc   +1 more source

Unveiling the Complete Biosynthetic Pathway of Azacitidine: A Rare 1,3,5‐Triazine Nucleoside Derived From GTP

Angewandte Chemie, EarlyView.
The azacitidine biosynthetic gene cluster (aza BGC) was identified by the resistance‐gene‐guided comparative genomics method in Streptomyces mobaraensis IPIO2. The complete biosynthetic pathway of azacitidine, which follows a “base‐first‐then‐glycosylation” logic, was elucidated through in vivo and in vitro experiments.
Dan Wang, Qingxu Meng, Lingqi Hua, Mengjun Sun, Qianjin Kang, Min‐Juan Xu, Linquan Bai   +6 more
wiley   +1 more source

Second‐Sphere Aromatic Substitutions That Tune H‐Atom Transfer Reactivity Observed for a Series of S = 1 Nonheme FeIV=O Complexes: An Enthalpy‐Entropy Compensation Effect

Angewandte Chemie, EarlyView.
A series of oxoiron(IV) complexes was synthesized to determine the impact of electronically tuned aromatic substitution in the secondary sphere of the ligand. Despite possessing identical electronic properties, they show significant differences in C─H oxidation reactions.
Abhishek Das, Jin Xiong, Victor G. Young Jr., Yisong Guo, Marcel Swart, Lawrence Que Jr.   +5 more
wiley   +1 more source

Absolute and Relative Quantification of Glycation on Biotherapeutic IgGs Using Heavy Isotope-Labeled Proteins. [PDF]

J Biomol Tech
Priya S, Popov M, Orlando R.
europepmc   +1 more source

Measurements of Isotope Ratio by Mass Spectrometry(I)

Journal of the Mass Spectrometry Society of Japan, 1961
TOSHIZO TITANI, MITUKO KOBAYAKAWA
openaire   +3 more sources

Electron Bridge Enhanced Charge Polarization Enables Efficient and Ultra‐Long Stable Urea Electrosynthesis

Angewandte Chemie, EarlyView.
An electron bridge strategy is developed to regulate charge polarization in Pd1 and Ni1 dual single‐atom sites, promoting CO2 reduction, nitrate reduction, and C–N coupling simultaneously. The resulting catalyst achieves efficient urea electrosynthesis with high activity and record durability over 1700 h.
Fan Wu, Haixia Wang, Wei Wang, Junrong Zou, Ruijie Zhou, Fenglin Xie, Peng Gao, Weiliu Fan, Nana Wang, Zhongchao Bai, Guoxiu Wang, Wei Ye   +11 more
wiley   +1 more source

Fragment-Resolved Carbon and Hydrogen Isotope Analysis of Urinary Steroids by Orbitrap Mass Spectrometry. [PDF]

Anal Chem
Shawar L, Piper T, Eiler JM.
europepmc   +1 more source

Structure and Biosynthesis of Mangotoxin Produced by the Plant Pathogen Pseudomonas syringae

Angewandte Chemie, EarlyView.
The structure of mangotoxin remained elusive for over two decades. Here, mangotoxin was isolated from the native producer, Pseudomonas syringae pv. syringae, and was determined to be an alkyne‐containing dipeptide. Mangotoxin inhibited the growth of multidrug‐resistant human pathogen Klebsiella pneumoniae.
Alexis H. Murray, Sohan Hazra, Ryan W. Mull, Erinn M. O'Neill, Bo Li   +4 more
wiley   +1 more source