Results 41 to 50 of about 1,362,496 (337)

¹³C NMR metabolomics: applications at natural abundance. [PDF]

, 2014
(13)C NMR has many advantages for a metabolomics study, including a large spectral dispersion, narrow singlets at natural abundance, and a direct measure of the backbone structures of metabolites.
Clendinen, Chaevien, Edison, Arthur, Hahn, Daniel, Lee-McMullen, Brittany, Stupp, Gregory, Vandenborne, Krista, Walter, Glenn, Williams, Caroline   +7 more
core   +3 more sources

Combined experimental and computational 1H NMR study of water adsorption onto graphenic materials

Journal of Magnetic Resonance Open, 2023
The effects caused by the interaction with graphene-like layers on the 1H NMR spectra of water molecules adsorbed onto porous carbon materials were investigated by a combination of shielding calculations using density functional theory (DFT) and 1H NMR ...
Alan R. Ambrozio, Thierry R. Lopes, Daniel F. Cipriano, Fábio A.L. de Souza, Wanderlã L. Scopel, Jair C.C. Freitas   +5 more
doaj   +1 more source

Biological 1H NMR spectroscopy

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1988
Proton nuclear magnetic resonance spectroscopy (1H NMR) is a powerful analytical method used to identify and quantitate chemical compounds. In recent years, it has been used to study rates of metabolism in microbes, isolated perfused tissues, intact animals, and human beings.
openaire   +2 more sources

Positional Enrichment by Proton Analysis (PEPA): A One‐Dimensional 1H‐NMR Approach for 13C Stable Isotope Tracer Studies in Metabolomics

Angewandte Chemie, 2017
A novel metabolomics approach for NMR‐based stable isotope tracer studies called PEPA is presented, and its performance validated using human cancer cells.
M. Vinaixa, M. Rodriguez, Suvi Aivio, Jordi Capellades, J. Gómez, N. Canyellas, T. Stracker, Ó. Yanes   +7 more
semanticscholar   +1 more source

Discovery of macrocyclic inhibitors of apurinic/apyrimidinic endonuclease 1 [PDF]

, 2019
Apurinic/apyrimidinic endonuclease 1 (APE1) is an essential base excision repair enzyme that is upregulated in a number of cancers, contributes to resistance of tumors treated with DNA-alkylating or -oxidizing agents, and has recently been identified as ...
Beglov, Dmitri, Brown, Lauren E., Chen, Qiujia, Chennamadhavuni, Spandan, Georgiadis, Millie M., He, Hongzhen, Kelley, Mark R., Panek, James S., Porco, John A., Reed, April, Trilles, Richard, Vajda, Sandor, Wireman, Randall   +12 more
core   +7 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

NMR Characterization of Flavanone Naringenin 7-O-Glycoside Diastereomer

Chinese Journal of Magnetic Resonance, 2017
To discriminate R and S flavanone glycoside using NMR, the mixture of R and S naringenin 7-O-glycoside was first isolated from Gleditsia sinensis. 1H and 13C NMR data of the mixture were recorded with 1H NMR, 13C NMR, 1H-1H COSY, 1H-13C HSQC and 1H-13C ...
SUN Li-juan, HU Xiao-fang, CHENG Xun, LUO Li-ting, LIU Hong-bing, CHEN Lei   +5 more
doaj   +1 more source

Insights into DNA platination within unusual structural settings [PDF]

, 2011
2D [1H, 15N] HSQC NMR spectroscopy has been used to monitor reaction and product formation between [Pt(15NH3)2I2] and nucleic acids possessing irregular topologies and containing site specific phosphorothioate substitution in the phosphodiester backbone.
Harvie, Stephanie, Parkinson, John A, Wilson, Owen   +2 more
core   +2 more sources

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source

Structural Elucidation of Hybutimibe

Chinese Journal of Magnetic Resonance
The structure of hybutimibe was analyzed by ultraviolet absorption spectroscopy, infrared absorption spectroscopy, mass spectrometry, nuclear magnetic resonance (1H NMR, 13C NMR, DEPT, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC) spectroscopy ...
XU Xiaojie, CHEN Yan’an, LI Xufei, ZHANG Yuncai, ZHANG Yong, ZHAN Dongkai, PAN Ting   +6 more
doaj   +1 more source