Results 41 to 50 of about 20,280 (253)

Concentration‐Driven Li+ Solvation Engineering with TDMAP‐Based Porphyrin Additives for Dendrite‐Free Li Metal Batteries

Advanced Science, EarlyView.
The electrolyte engineering of introducing tetrakis(4‐N, N‐dimethylaminophenyl)porphyrin (TDMAP) is designed to modulate Li+ solvation structure and solid electrolyte interphase, where the interaction with PF₆− anions is altered (Li+–NMe2–PF₆−). Consequently, the cells with optimal additive concentration achieve high Coulombic efficiency (∼99%), and ...
Pooria Afzali, Jian Wang, Sergio Rodriguez, Jin‐Hyun Chang, Luca Magagnin, Maximilian Fichtner   +5 more
wiley   +1 more source

Backbone Steric Constraints Underlie High Passive Membrane Permeability of N‐Alkyl Peptides

Angewandte Chemie, EarlyView.
Beyond amide hydrogen removal, steric constraints encoded in N/Cα‐dually substituted backbones are uncovered as a key determinant of passive membrane permeability in N‐alkyl peptides. These constraints restrict conformational freedom and sterically limit backbone hydration during membrane permeation.
Ayumi Inayoshi, Mariko Akiba, Marin Yokomine, Masatake Sugita, Koji Umezawa, Yuto Hirota, Yutaka Akiyama, Jumpei Morimoto, Shinsuke Sando   +8 more
wiley   +2 more sources

Water‐Enabled Ultralong Full‐Color Organic Phosphorescence in Hydrogen‐Bonded Frameworks for 4D Encryption and Bio‐Imaging

Advanced Science, EarlyView.
Water‐induced quenching challenges organic RTP materials, but a counter‐intuitive strategy employs HOF to encapsulate carbonyl guests, where water functions as a structural reinforcer. This achieves water‐enhanced ultralong RTP with full‐color emission (blue to deep red), overcoming intracellular quenching for high‐signal cellular imaging, alongside 4D
Pengcheng Wu, Zenggang Lin, Lu Yang, Weisheng Liu   +3 more
wiley   +1 more source

Downsizing the Histone H3–H4 Quaternary Structure Into Foldamer Mimetics Yields High‐Affinity and Cell‐Permeable Ligands of ASF1

Angewandte Chemie, EarlyView.
We present a foldamer strategy to downsize the histone H3‐H4 quaternary structure into high‐affinity, medium‐sized binders (∼2 kDa) for the histone chaperone ASF1. Our peptide‐oligourea chimeras, designed through structure‐guided optimization and foldamer chemistry, recapitulate the natural H3‐H4 dimer binding mode while demonstrating plasma stability ...
Bo Li, Marie E. Perrin, Emma Maillard, Arthur Vitard, Gwenaëlle Moal, Johanne Mbianda, Christophe André, Magda Teixeira Nunes, Marie Vandamme, Guillaume Pinna, Céline Douat, Emmanuelle Thinon, Raphaël Guerois, Pierre Legrand, Gilles Guichard, Francoise Ochsenbein   +15 more
wiley   +2 more sources

VIBURNINE, A MACROCYCLIC SPERMIDINE ALKALOID FROM VIBURNUM RHYTIDOPHYLLUM [PDF]

Bulletin of Pharmaceutical Sciences. Assiut University, 1995
A new macrocyclic spermidine alkaloid; viburnine was isolated from the flowers of Viburnum rhytidophyllum Hessel cultivated in Egypt together with five known compounds; henryoside, salicin, arbutin, catechin and ursolic acid.
Z. Ibraheim, O. Abdallah
doaj   +1 more source

Synthesis and the Antimicrobial Activity of Salt Carbenoid Compounds

Журнал органічної та фармацевтичної хімії, 2022
Aim. To synthesize aliphatic and aromatic derivatives of salt carbenoid compounds of the series of imidazole, benzimidazole, pyridine, pyrimidine and 1,3,4-oxadiazole containing fluorophenyl, cetyl or adamantyl substituents, and study their antimicrobial
Gennady F. Rayenko, Olexandr S. Avksentiev, Vagiz Sh. Saberov, Alexey B. Ryabitsky, Vasil I. Yenya, Olena Z. Komarovska-Porokhnyavets, Vira I. Lubenets, Nikolai I. Korotkikh   +7 more
doaj   +1 more source

Targeting Lipopolysaccharide Transport Induces Membrane Lipid Remodeling and Sensitizes Acinetobacter baumannii to Colistin Treatment

Advanced Science, EarlyView.
This study identifies C4 as a lead inhibitor of the Lpt system. Notably, C4 potentiates colistin activity by disrupting LPS transport and remodeling phospholipid homeostasis, revealing a functional interplay between the Lpt and Mla systems. These findings establish a mechanistic link between Lpt inhibition and membrane lipid remodeling, positioning Lpt–
Jianya Luo, Hetianzi Zhang, Jinju Cai, Shuang Zhou, Haijie Zhang, Zhiqiang Wang, Yuan Liu   +6 more
wiley   +1 more source

Anticancer Activities of Newly Synthesized Chiral Macrocyclic Heptapeptide Candidates

Molecules, 2020
As important cancer therapeutic agents, macrocyclic peptides have recently drawn great attention, mainly because they are synthetically accessible and have lower toxicity towards normal cells.
Mohamed H. Abo-Ghalia, Gaber O. Moustafa, Abd El-Galil E. Amr, Ahmed M. Naglah, Elsayed A. Elsayed, Ahmed H. Bakheit   +5 more
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

Beyond Simple Mimicry: Next‐Generation Geometric Architectures and Future Paradigms in Small‐Molecule and Macrocyclic Peptidomimetics

Angewandte Chemie, EarlyView.
Peptide‐to‐Small Molecule Paradigm: Peptidomimetics have evolved from simple mimicry toward drug‐like scaffolds supported by increasing clinical successes. This Perspective highlights the geometric design principles—linear repetition, convergent fusion, and cyclization—defining the next‐generation peptidomimetic architectures capable of targeting ...
Jesang Lee, Sumin Son, Jeong Yeon Yoo, Ji Hyae Lee, Meehyun Chun, Seung Bum Park   +5 more
wiley   +2 more sources