Results 181 to 190 of about 6,045 (297)

Biological evaluation of amidine derivatives: In vitro cytotoxicity and cellular antioxidant capacity. [PDF]

open access: yesPLoS One
Pérez-Madrigal MM   +9 more
europepmc   +1 more source

Unraveling the Electron Transfer Mechanism in the Reduction of Bis(µ‐Oxido) Dicopper Complexes

open access: yesChemistryEurope, Volume 4, Issue 6, June 2026.
We elucidate the electron transfer mechanism in bis(µ‐oxido) dicopper complexes stabilized by guanidine ligands. Kinetic and spectroscopic analyses reveal two sequential reduction steps without isomerization to µ‐η²:η²‐peroxido species. Marcus and density functional theory studies show ligand‐dependent reorganization energies and a unique two‐spin–four‐
Regina Schmidt   +5 more
wiley   +1 more source

Modification of the Zeolite Heulandite with N-(3-Triethoxysilylpropyl)guanidines Offers an Effective Approach to Enhancing Its Adsorption Capacity for Heavy Metal Ions. [PDF]

open access: yesInt J Mol Sci
Adamovich SN   +9 more
europepmc   +1 more source

A Short Synthesis of Cyclo(‐RGDfK) Using a Microflow Reactor

open access: yesChemistryEurope, Volume 4, Issue 6, June 2026.
An efficient synthesis of cyclo(‐RGDfK) was achieved by combining a one‐flow three‐component coupling (3CC) reaction via α‐amino acid N‐carboxy anhydrides with rapid macrolactamization using a microflow reactor. Precise control of the water content and base loading in the 3CC reaction enabled the gram‐scale synthesis of the desired tripeptides and ...
Naoto Yamasaki   +6 more
wiley   +1 more source

Chemical Straightening as a Source of Analytical Variability in Hair Testing: A Dual‐Analyte Case Report

open access: yesDrug Testing and Analysis, Volume 18, Issue 6, Page 771-776, June 2026.
Permanent chemical hair straightening was associated with analyte‐dependent changes in hair concentrations, showing increased endogenous GHB levels and decreased alprazolam concentrations after treatment. These results suggest that chemical hair straightening procedures may influence hair concentrations and should be considered when interpreting hair ...
Miriam Blanco‐Ces   +5 more
wiley   +1 more source

Positive Charge in an Antimalarial Compound Unlocks Broad-Spectrum Antibacterial Activity. [PDF]

open access: yesJACS Au
Braun-Cornejo M   +12 more
europepmc   +1 more source

Stimuli‐Responsive Poly(Disulfide)s: A Versatile Platform for Intelligent Drug Delivery Systems

open access: yesMedComm – Biomaterials and Applications, Volume 5, Issue 2, June 2026.
Ring‐opening polymerization based on dynamic disulfide bond exchange is an important method for synthesizing poly(disulfide)s. These polymers possess stimulus‐responsive mechanisms and show broad prospects in intelligent drug delivery. This review systematically discusses the ring‐opening polymerization strategy and research progress of drug delivery ...
Yuechen He   +7 more
wiley   +1 more source

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