Results 71 to 80 of about 724,958 (380)

Identifying volatile in vitro biomarkers for oral bacteria with proton-transfer-reaction mass spectrometry and gas chromatography–mass spectrometry

open access: yesScientific Reports, 2021
We have measured the volatile fingerprints of four pathogenic oral bacteria connected to periodontal disease and dental abscess: Porphyromonas gingivalis (three separate strains), Prevotella intermedia, Prevotella nigrescens and Tannerella forsythia ...
Kajsa Roslund   +6 more
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Дифференциация 2- и 6-изомеров (2-метиламинопропил)бензофурана методом тандемной масс-спектрометрии [PDF]

open access: yes, 2016
Reliable identification of new psychoactive substances of 2-(2-methylaminopropyl) benzofuran and 6-(2-methylaminopropyl)benzofuran is problematic when analyzing by gas chromatography–mass spectrometry method.
Shevyrin, V. A., Шевырин, В. А.
core   +1 more source

Study of chemical composition of Foeniculum vulgare using Fourier transform infrared spectrophotometer and gas chromatography - mass spectrometry

open access: yes, 2016
Medicinal plants are potential sources of natural compounds with biological activities and therefore attract the attention of researchers worldwide. The objective of this research was to determine the chemical composition of seeds extract from methanol ...
Hussein J. Hussein, M. Hadi, I. Hameed
semanticscholar   +1 more source

Gas Chromatography–Mass Spectrometry Reveals Stage-Specific Metabolic Signatures of Ankylosing Spondylitis

open access: yesMetabolites, 2023
Ankylosing spondylitis (AS) is a type of chronic rheumatic immune disease, and the crucial point of AS treatment is identifying the correct stage of the disease. However, there is a lack of effective diagnostic methods for AS staging.
Yixuan Guo   +6 more
doaj   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Comparison of phenolic and volatile profiles of edible and toxic forms of Detarium senegalense J. F. GMEL [PDF]

open access: yes, 2016
In Senegal, Detarium senegalense J.F. Gmel. (ditax in Wolof) is one of the most important important forest fruit species. However, exploitation of the edible fruit is based on local people's knowledge.
Boudard, Frédéric   +7 more
core   +2 more sources

ANALYTICAL FEATURES OF SYNTHETIC MDMB(N)-073F CANNABIMIMETICS AND ITS MARKERS IN BIOLOGICAL MATERIAL

open access: yesФармация и фармакология (Пятигорск), 2019
The aim of the research is to study both analytical features of synthetic MDMB(N)-073F cannabimimetics of indazole carboxamides group by gas chromatography methods combined with tandem mass spectrometry (GC-MS) and high performance liquid chromatography ...
S. S. Kataev   +4 more
doaj   +1 more source

Adalimumab‐Poloxamer Conjugate for Bio‐Better: Enhanced Stability and Function

open access: yesAdvanced Functional Materials, EarlyView.
Antibody‐polymer conjugates, particularly poloxamer conjugates, enhance antibody stability by improving tolerance to physicochemical stress and attenuating proteolysis by proteases. Furthermore, the higher affinity observed with poloxamer conjugation compared to standard PEGylation results in improved therapeutic efficacy in rheumatoid arthritis mouse ...
Jaewon Roh   +3 more
wiley   +1 more source

Preparation of flaxseed for lignan determination by gas chromatography-mass spectrometry method

open access: yesCzech Journal of Food Sciences, 2012
Since 1980s, several methods for the determination of lignans in food samples have been developed depending on the types of lignans and foods analysed, but mostly on flaxseed as a reference food.
Hrvoje Sarajlija   +5 more
doaj   +1 more source

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