Results 171 to 180 of about 40,087 (250)

Clinical Laboratory Innovations: Nanoscale Detection of Chloramphenicol Using Nanomaterial Biosensors

Analytical Science Advances, Volume 7, Issue 2, December 2026.
Nanosensor schematic functionalized with specific bioreceptors that produce electrochemical signals upon Chloramphenicol binding. Resulting voltammetric readouts (differential pulse, square‐wave, and cyclic voltammetry) are analyzed to identify and quantify Chloramphenicol.
Nava Moghadasian Niaki, Reza Kheradmand, Seyedeh Giso Akbarian, Elham Shaterian, Hamed Shaterian, Ahmad Mobed   +5 more
wiley   +1 more source

High‐Resolution LC–MS/MS Characterization of Budmunchiamine‐Type Alkaloids in Albizia niopoides

Rapid Communications in Mass Spectrometry, Volume 40, Issue 19, 15 October 2026.
ABSTRACT Rationale Budmunchiamines are macrocyclic spermine alkaloids that constitute a distinctive class of polyamine natural products predominantly found in species of the genus Albizia. Comprehensive characterization of these compounds remains challenging because of their structural diversity and the limited availability of reference standards. This
Maria L. A. Majevski, Lienne D'Auria Lima, Adriana C. C. Reis, Leonan I. C. R. Santos, Brenno F. S. Vargas, Markus Kohlhoff, Geraldo Célio Brandão   +6 more
wiley   +1 more source

An Unexpected Isomerization for the Total Synthesis of Daphnepapytone A. [PDF]

Org Lett
Lubins I, Breit B.
europepmc   +1 more source

Serine Octamer Substitution Reactions With α‐Hydroxy Acids

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale The amino acid serine forms chiral magic number clusters, which can be studied using mass spectrometry (MS). Serine octamer clusters are also known to incorporate one or two nonserine monomers with serine monomers to make up the octamer.
Keerthana Unni, Brison A. Shira, Dylan T. Holden, Thalappil Pradeep, R. Graham Cooks   +4 more
wiley   +1 more source

Comparing Chemoenzymatic and Conventional Synthetic Strategies to Wall Teichoic Acid Peptidoglycan Fragments

Israel Journal of Chemistry, Volume 66, Issue 5, September 2026.
The Gram‐positive bacteria, Staphylococcus aureus, contain wall teichoic acid (WTA, a glycopolymer (green and yellow)) is a virulence factor in their cell wall. Synthesis of the peptidoglycan‐(PG)‐WTA conjugate (blue squares) was developed via the phospho‐donor and PG acceptor (structures at the bottom right).
Min Liu, Kathleen C. Stathoulopoulos, Catherine Leimkuhler Grimes   +2 more
wiley   +1 more source

Mechanistically Defined Epoxide- and Aziridine-2-carboxamide Electrophiles Enable Stereoselective Covalent Ribonucleic Acid Modulation. [PDF]

J Am Chem Soc
Li C, Yang X, Shan J, Dickerson KA, Springer NA, Munshi NC, Batey RT, Disney MD.   +7 more
europepmc   +1 more source

Evolutionary insights into bilin biosynthesis: Functional characterization of pre‐PcyA enzymes

Protein Science, Volume 35, Issue 9, September 2026.
Abstract Biosynthesis of the linear tetrapyrrole phycocyanobilin (PCB) by the ferredoxin‐dependent bilin reductase (FDBR) PcyA is essential for light‐harvesting and regulatory processes in diverse photosynthetic organisms, yet its evolutionary origins are not fully understood. PcyA evolved from pre‐PcyA proteins found in diverse bacteria.
Federica Frascogna, Nathan C. Rockwell, Gunhild Layer, Nicole Frankenberg‐Dinkel   +3 more
wiley   +1 more source

Stereodivergent Synthesis of Three Contiguous Stereogenic Centers by Cu/Ir-Catalyzed Borylallylation. [PDF]

Angew Chem Int Ed Engl
Das S, Dorn SK, Brown MK.
europepmc   +1 more source

Molecular descriptor driven QSPR modeling of Papp, TEER and Efflux Ratio from Caco‐2 cells using machine learning for various phytochemicals

Journal of the Science of Food and Agriculture, Volume 106, Issue 11, Page 6606-6616, 30 August 2026.
Abstract BACKGROUND The present study aimed to develop and validate quantitative structure–property relationship (QSPR) models for predicting permeability related bioavailability indicators including apparent permeability (Papp), trans‐epithelial electrical resistance (TEER) and efflux ratio (ER) based on molecular descriptors (n = 5003) of 83 ...
Jin‐Woo Kim, Rixing Cong, Jin‐Soo Park, Keunwan Park, Kyungsu Kang, Soon‐Mi Shim   +5 more
wiley   +1 more source

Data curation in cheminformatics: importance and implementation. [PDF]

J Cheminform
Esaki T, Ikeda K.
europepmc   +1 more source