Results 241 to 250 of about 303,757 (355)

333 Abstract withdrawn

open access: yesRegular and Young Investigator Award Abstracts, 2023
openaire   +1 more source

Building a Bridge Between Ambient MS and LC‐MS by Non‐Exhaustive Microdesorption

open access: yesAngewandte Chemie International Edition, Accepted Article.
Ambient mass spectrometry (AMS) offers rapid screening but faces challenges in analyzing complex samples due to high matrix effects and limited selectivity. The absence of a separation step can also lead to false positives due to the isomers or isobars.
Wei Zhou, Janusz Pawliszyn
wiley   +1 more source

Unlocking Lactonase Enzymes as Biocatalysts for the Deracemization of Chiral γ‐Thiolactones

open access: yesAngewandte Chemie International Edition, Accepted Article.
Lactonases, a class of metalloenzymes that exhibit catalytic promiscuity, have been extensively studied from a biological perspective, yet their application as biocatalysts remains underexplored. In this study, we disclose the biocatalytic activity of lactonase enzymes in the hydrolysis and deracemization of chiral C3‐substituted‐γ‐thiolactones and the
Jingyue Wu   +7 more
wiley   +1 more source

Development of an Organoautocatalyzed Double σ‐Bond C(sp2)‐N Transamination Metathesis Reaction

open access: yesAngewandte Chemie International Edition, Accepted Article.
The transamination reaction, which involves the conversion of one amine to another, traditionally relies on biological enzyme catalysts. Although chemists have recently developed a few transition metal‐catalyzed methods, mimicking these enzymes to interconvert amine groups in acyclic substrates via transamination metathesis of a single C(sp2)–N bond ...
Volker Klein   +7 more
wiley   +1 more source

Calotropis procera Latex Extract as an Effective Green Corrosion Inhibitor for Mild Steel in Acidic Medium: Experimental and Quantum Chemical Approaches

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In this work, Calotropis procera latex extract (CPLE) was evaluated as an environmentally benign corrosion inhibition on mild steel in 1‐M HCl using gravimetric, electrochemical, surface, and computational approaches. The results revealed that CPLE exhibited an efficient corrosion inhibitor with the efficiency of 94.26% and 93.10% at 200‐ppm ...
M. Salman   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy