Results 51 to 60 of about 3,958,494 (277)

Determination of nicotine in newborn meconium by high-Resolution ambient mass spectrometry using wooden-Tip spray

open access: yesFrontiers in Chemistry, 2023
Prenatal exposure to nicotine that are mainly produced from tobacco smoke has been reported to affect infants. Therefore, nicotine exposure is one of important health concerns for newborn screening. Detecting nicotine and its metabolites such as cotinine
Xinrong Wang   +20 more
doaj   +1 more source

Guided analysis of ambient ionization mass spectrometry data with the MQ_Assistant

open access: yesRapid Communications in Mass Spectrometry, 2023
RATIONALE Ambient ionization mass spectrometry (AIMS) delivers realistic data from samples in their native state. In addition, AIMS methods reduce time and costs for sample preparation and have less environmental impact. However, AIMS data are often complex and require substantial processing before interpretation.
Héctor Guillén‐Alonso   +2 more
openaire   +2 more sources

Desorption sonic spray ionization for (high) voltage-free ambient mass spectrometry

open access: yes, 2015
Sonic spray ionization is shown to create a supersonic cloud of charged droplets able to promote efficient desorption and ionization of drugs directly from the surfaces of commercial drug tablets at ambient conditions.
Sparrapan, R, Haddad, R, Eberlin, MN
core   +1 more source

Basic principle from electrospray ionization to soft ionization mass spectrometry and development of ion source [PDF]

open access: yes, 2023
Since the electrospray phenomenon was discovered, there is still an unsolved mystery about the prinple of generating charged analyte in the soft ionization phenomenon which represented by ESI.
jiehong, luo, jiehong luo
core   +1 more source

Introducing Nafion for In Situ Desalting and Biofluid Profiling in Spray Mass Spectrometry

open access: yesFrontiers in Chemistry, 2022
We introduce Nafion into the ambient ionization technique of spray mass spectrometry to serve for in situ desalting and direct analysis of biological fluids.
Xiaowei Song   +3 more
doaj   +1 more source

Biomineral‐Inspired Organic/Inorganic Colloidal Liquid‐Crystalline Hybrids for Photoresponsive Adhesion

open access: yesAdvanced Functional Materials, EarlyView.
A new class of photoresponsive liquid‐crystalline (LC) adhesives based on biomineral‐inspired organic/inorganic colloidal hybrids is reported. These colloidal LC materials are formed by hybridization of a hydroxyapatite nanorod with azobenzene‐based forklike molecules.
Junya Uchida   +4 more
wiley   +1 more source

Ambient desorption ionization mass spectrometry (DART, DESI) and its bioanalytical applications

open access: yes, 2020
In recent years, ambient desorption ionization techniques for mass spectrometry were introduced. Among them, the most established techniques are Direct Analysis in Real Time (DART) and Desorption Electrospray Ionization (DESI).
Morlock G.E., Chernetsova E.S.
core   +2 more sources

Nanoamphizymes: Self‐Assembled Amphiphilic Enzymatic Nanomaterials for High‐Performance Biocatalysis and Biosensing

open access: yesAdvanced Functional Materials, EarlyView.
An amphiphilic GOx nanoamphizyme was constructed by covalently introducing hydrophobic PPNI linkers onto GOx, enabling spontaneous self‐assembly into tunable nanoparticles. Mild crosslinking further stabilized the assemblies and enhanced catalytic performance and stability.
Yuan‐Hao Hsiao   +4 more
wiley   +1 more source

Single-Cell Analysis and Its Applications by Surface Desorption Ambient Mass Spectrometry

open access: yesZhipu Xuebao
As the fundamental units of the structure and function of living organisms, cells perform the core functions of life activities. With the deepening research in life sciences, the importance of studies on cellular heterogeneity has become increasingly ...
Dan LIN   +5 more
doaj   +1 more source

Direct Ambient Analysis of Pharmaceutical and Ecstasy Tablets

open access: yesCHIMIA, 2006
Desorption electrospray ionization (DESI) is a new ionization technique recently introduced in analytical chemistry for the ambient analysis of surfaces by mass spectrometry.
Luc Alexis Leuthold   +6 more
doaj   +1 more source

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