Results 91 to 100 of about 16,991 (224)

Mass Spectrometry and NMR Spectroscopy‐Based Structural Characterization of Polysaccharide From Gastrodia elata Blume

Food Frontiers, Volume 7, Issue 4, July 2026.
ABSTRACT Structural characterization of complex carbohydrates remains challenging. This study employed methylation, acid hydrolysis, 1‐phenyl‐3‐methyl‐5‐pyrazolone (PMP) derivatization, and ultra‐high performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) to determine monosaccharides, glycosidic linkages, and sequence of ...
Hui Yan, Cheng‐Xi Feng, Zhe Wang, Jun‐Qiao Wang, Shao‐Ping Nie   +4 more
wiley   +1 more source

Comparison of Different Fruit Shapes of Lanxangia tsaoko: Differences and Relevance of Phenotypes, Antioxidant Activities, and Physicochemical Information

Food Science &Nutrition, Volume 14, Issue 7, July 2026.
This study selected three fruit types of LT, including PCS, ES, and LFS. We examined the phenotypes and physicochemical components, volatile substances, non‐volatile substances, and FT‐NIRS characteristics of the three fruit types. Based on FT‐NIRS, an SVM model was established for the rapid identification of LT fruit types.
Dengke Fu, Tianmei Yang, Weize Yang, Zongliang Xu, Meiquan Yang, Yuanzhong Wang, Jinyu Zhang   +6 more
wiley   +1 more source

Electrospray Vs Matrix-assisted Laser-desorption Ionization .1. Some Examples In the Protein Field

, 1994
Several proteins in the relative molecular mass (RMM) range 1150-29 000 are examined by means of both positive electrospray and matrix-assisted laser desorption/ionization mass spectrometry.
R. SERAGLIA, Mahmoud Hamdan, O. CURCURUTO, Ornella Curcuruto, Donata Favretto, Roberta Seraglia, Pietro Traldi, FAVRETTO, DONATA, P. TRALDI, M. HAMDAN   +9 more
core   +1 more source

Spatially Resolved Plant Metabolomics

Metabolites
Research and innovation in metabolomics tools to measure metabolite accumulation within plants have led to important discoveries with respect to the improvement of plant stress tolerance, development, and crop yield.
Ronald J. Myers, Zachary M. Tretter, Abigail G. Daffron, Eric X. Fritschi, William Thives Santos, Maiya L. Foster, Matthew Klotz, Kristin M. Stafford, Christina Kasch, Thomas J. Taylor, Lillian C. Tellefson, Tyler Hartman, Dru Hackler, Preston Stephen, Lloyd W. Sumner   +14 more
doaj   +1 more source

Glycosylation characterization of therapeutic mAbs by top- and middle-down mass spectrometry

Data in Brief, 2016
A reference monoclonal antibody IgG1 and a fusion IgG protein were analyzed by top- and middle-down mass spectrometry with multiple fragmentation techniques including electron transfer dissociation (ETD) and matrix-assisted laser desorption ionization in-
Bao Quoc Tran, Christopher Barton, Jinhua Feng, Aimee Sandjong, Sung Hwan Yoon, Shivangi Awasthi, Tao Liang, Mohd M. Khan, David P.A. Kilgour, David R. Goodlett, Young Ah Goo   +10 more
doaj   +1 more source

A Step‐by‐Step Protocol From METASPACE to Biological Interpretation

Journal of Mass Spectrometry, Volume 61, Issue 7, July 2026.
ABSTRACT Mass spectrometry imaging (MSI) represents an exceptional tool for exploring complex biological systems spatially at the molecular level. However, its multidimensional nature and large data outputs make it challenging to extract meaningful biological insights. Advancements such as the METASPACE platform allow researchers to efficiently process,
Abigail Moreno‐Pedraza, Brittney Gorman, Marija Velickovic, Max Bentelspacher, Jaime Barros, Dusan Velickovic, Christopher R. Anderton   +6 more
wiley   +1 more source

Designing and Construction of Thermal Desorption and Ionization Units for Ambient Ionization Mass Spectrometry

, 2023
Ambient Ionization Mass Spectrometry(AIMS) is a technique used for ionization and analysis in atmosphere. Analytes can be analyzed without complex preprocessing steps, facilitating rapid detection and high-throughput analysis.
Ko, Kuan-Yu
core  

Intraoperative Mass Spectrometry in Oncology: Technologies, Clinical Applications, and Challenges

Molecules
Surgical precision is critical in oncology, where complete tumor resection while preserving healthy tissue directly influences patient outcomes. Traditional intraoperative diagnostic tools, such as frozen-section analysis, are limited by time constraints,
Robert Onulov, Marius Georgescu, Corina Flangea, Adela Chirita-Emandi, Alina-Florina Serb   +4 more
doaj   +1 more source

Physical Properties and Molecular Conformations of Indole Alkaloids and Model Protein Interactions – Theoretical Experimental Study

Natural Product Communications, 2012
The physical properties and molecular structure of five natural indole alkaloids (IAs) and their interaction with protein targets have been studied, experimentally and theoretically.
Bojidarka Ivanova, Michael Spiteller
doaj   +1 more source

Mass spectrometry imaging of N‐linked glycans: Fundamentals and recent advances

Mass Spectrometry Reviews, Volume 45, Issue 4, Page 599-623, July/August 2026.
Abstract With implications in several medical conditions, N‐linked glycosylation is one of the most important posttranslation modifications present in all living organisms. Due to their nontemplate synthesis, glycan structures are extraordinarily complex and require multiple analytical techniques for complete structural elucidation.
Tana V. Palomino, David C. Muddiman
wiley   +1 more source