Results 111 to 120 of about 776,948 (400)

Differentiation between 3,4- and 4,15-Epoxyeudesmanolides by Electrospray Ionization Tandem Mass Spectrometry

Journal of Analytical Methods in Chemistry, 2017
We investigated the fragmentation of the eudesmanolide-type sesquiterpene lactones 1α-(4-hydroxymethacryloyloxy)-3α,4α-epoxy-8α-hydroxyeudesm-11(13)-6α,12-olide (1) and 1α-(2,3-epoxyangeloyloxy)-4α,15-epoxy-8α-hydroxyeudesm-11(13)-6α,12-olide (2) by ...
Herbert Júnior Dias, Ricardo Stefani, José Carlos Tomaz, Ricardo Vessecchi, Antônio Eduardo Miller Crotti   +4 more
doaj   +1 more source

Identification, structure elucidation and origin of a common pyridinium-thiocyanate intermediate in electrospray mass spectrometry among the benziamidazole-class proton pump inhibitors. [PDF]

J Pharm Anal, 2023
Sun D, Wang C, Fan Y, Gu J.
europepmc   +1 more source

Metabolomics : a tool for studying plant biology [PDF]

, 2005
In recent years new technologies have allowed gene expression, protein and metabolite profiles in different tissues and developmental stages to be monitored.
Gullberg, Jonas
core  

The role of the mobile proton in fucose migration [PDF]

, 2019
Fucose migration reactions represent a substantial challenge in the analysis of fucosylated glycan structures by mass spectrometry. In addition to the well-established observation of transposed fucose residues in glycan-dissociation product ions, recent ...
Helden, Gert von, Lettow, Maike, Manz, Christian, Marianski, Mateusz, Meijer, Gerard, Mucha, Eike, Pagel, Kevin, Thomas, Daniel A.   +7 more
core   +1 more source

A Dual‐Emissive DNA‐Templated Silver Nanocluster with Near‐Infrared I and II Emission

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study presents a dual‐emissive DNA‐stabilized silver nanocluster with a nanosecond‐lived NIR‐I emission band and a microsecond‐lived NIR‐II emission band. Mass spectrometry establishes that the nanocluster has molecular formula (DNA)2[Ag17]11+. DNA sequence variations reveal critical nucleobases for stabilization, and modifications at the DNA 5 ...
Anna Gonzàlez‐Rosell, Vanessa Rück, Mikkel B. Liisberg, Cecilia Cerretani, Villads R. M. Nielsen, Tom Vosch, Stacy M. Copp   +6 more
wiley   +1 more source

Detection of Plasmodium vivax in a child returning from India by use of broad-range PCR and electrospray ionization mass spectrometry

Emerging Microbes and Infections, 2012
Plasmodium vivax is a common cause of imported malaria in the USA, second only to P. falciparum. We present a case of P. vivax malaria in a child returning from India. P.
Megan A Rounds, Christopher D Crowder, Charles W Stratton, David J Ecker, Mark W Eshoo, Yi-Wei Tang   +5 more
doaj   +1 more source

[Rapid detection of four amphetamine-type drugs in hair by pulsed direct current electrospray mass spectrometry]. [PDF]

Se Pu, 2023
Mi K, Zhang W, Wen L, Wang J.
europepmc   +1 more source

Outbreak of gastroenteritis caused by Yersinia pestis in Afghanistan. [PDF]

, 2011
Plague, which is most often caused by the bite of Yersinia pestis-infected fleas, is a rapidly progressing, serious disease that can be fatal without prompt antibiotic treatment.
Ayazi, E, Baldwin, C, Hami, AS, Kakar, F, Kakar, R, Leslie, T, Mofleh, J, Mustafa, L, Noormal, B, Omar, F, Rossi, C, Whitehouse, CA, Yingst, S, Ziar, N   +13 more
core   +1 more source

Organic, Transparent, and Flexible Films Exhibiting White‐Light Emission via Polymer‐Network Engineering: A Non‐Dye‐Centric Strategy

Advanced Optical Materials, EarlyView.
A hydrogel‐based white light‐emitting (WLE) material is synthesized, where emission results from the synergistic interaction of two complementary dyes embedded in the polymer matrix. By tuning the monomer and cross‐linker composition, the system achieves balanced white light fluorescence with high transparency and flexibility, showcasing a matrix ...
Jean C. Neto, Ayman Larek, Juan F. Miravet, Minoru Yamaji, Francisco Galindo   +4 more
wiley   +1 more source

Wooden-Tip Electrospray Mass Spectrometry Characterization of Human Hemoglobin in Whole Blood Sample for Thalassemia Screening: A Pilot Study. [PDF]

Molecules, 2022
Huang T, Huang T, Zou Y, Xie K, Shen Y, Zhang W, Huang S, Liu Y, Yang B.   +8 more
europepmc   +1 more source