Results 121 to 130 of about 376,084 (233)

Multimodal Analytical Platform Coupled With Biological Assays Unravels Tissue‐Specific Chemical Profiles, Spatial Metabolite Distributions and Bioactivities of Root Xylem and Root Bark of Tripterygium wilfordii

open access: yesAnalytical Science Advances, Volume 7, Issue 2, December 2026.
ABSTRACT Characterising chemical and biological differences among different tissues of medicinal plants is important for understanding their tissue‐specific characteristics and medicinal efficacy. The root xylem (RX) and root bark (RB) of Tripterygium wilfordii have historically been used differently; however, the basis underlying their differential ...
Zhong Mou Zhang   +5 more
wiley   +1 more source

Tandem mass spectrometry imaging to assess illudin S distributions in Omphalotus illudens mushrooms

open access: yesTalanta Open
Poisoning metabolites within mushrooms typically exert varying physiological and biological effects; however, their distributions within mushrooms are seldom investigated.
Shigeki Matsui   +2 more
doaj   +1 more source

Recent Advances in Reversed‐Phase Liquid Chromatography for Therapeutic Oligonucleotide and Conjugate Characterization: From Ion‐Pairing to Green Analytical Approaches

open access: yesAnalytical Science Advances, Volume 7, Issue 2, December 2026.
ABSTRACT Therapeutic oligonucleotides (ONs) have rapidly emerged as a novel class of treatments in the pharmaceutical industry, with over 25 medicines approved in the past decade. Ion‐pair reversed‐phase liquid chromatography coupled with mass spectrometry (IP‐RPLC‐MS) is widely used method for ON characterization.
Quang‐Dong Bui   +4 more
wiley   +1 more source

Cyclodextrins tethered with oligolactides – green synthesis and structural assessment

open access: yesBeilstein Journal of Organic Chemistry, 2017
Biodegradable oligolactide derivatives based on α-, β- and γ-cyclodextrins (CDs) were synthesized by a green procedure in which CDs play the role of both the initiator and the catalyst.
Cristian Peptu   +4 more
doaj   +1 more source

Synthesis and Photoacoustic Characterization of Amphiphilic Ni(II) Phthalocyanines as Calorimetric References

open access: yesChemPhysChem, Volume 27, Issue 21, 12 November 2026.
A series comprised by four nonionic yet amphiphilic octa‐substituted Ni(II) phthalocyanines is introduced. These NiPcs are soluble in both polar organic solvents and aqueous media. A new experimental setup was developed to investigate their photoacoustic efficiency by combining transient absorption and photoacoustic spectroscopy. This approach revealed
Sidharth Thulaseedharan Nair Sailaja   +5 more
wiley   +1 more source

Quantitative aspects in electrospray ionization ion trap and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry of malto-oligosaccharides

open access: yes, 2011
Mass spectrometry is widely applied in carbohydrate analysis, but still quantitative evaluation of data is critical due to different ionization efficiencies of the constituents in a mixture.
Unterieser, Inga   +9 more
core   +1 more source

Recent Development on the Detection and Monitoring of Chemical Intermediates by Ambient Mass Spectrometry [PDF]

open access: yesZhipu Xuebao
Along with the development of science and technology, chemical reactions exhibit an important role in various fileds including synthesis, chemical engineering, energy, environment, biology and medicine.
GE Xi-yang1   +3 more
doaj  

Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors

open access: yesAdvanced Materials, Volume 38, Issue 61, 2 November 2026.
We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian   +23 more
wiley   +1 more source

Monitoring ongoing chemical reactions using eco-friendly miniature ambient ionization mass spectrometry

open access: yesGreen Analytical Chemistry
An analytical technique that combined probe sampling with thermal desorption electrospray ionization mass spectrometry (TD-ESI/MS) was developed to monitor ongoing chemical reactions.
Min-Zong Huang   +5 more
doaj   +1 more source

TH17–Associated Polyamine Metabolism‐Guided Nanozyme Promotes Alveolar Bone Repair in Periodontitis

open access: yesAdvanced Science, Volume 13, Issue 62, 9 November 2026.
A pronounced TH17‐skewed immune response is identified in experimental periodontitis, and enrichment of the polyamine pathway is observed during TH17 differentiation, suggesting its potential as an immunometabolic target. Inspired by these findings, DFMO@Ui‐Mn is developed as a therapeutic platform combining cascade ROS scavenging with immunometabolic ...
Cheng Zhu   +12 more
wiley   +1 more source

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