Results 91 to 100 of about 35,646 (266)

Poly(2-oxazolines) in biological and biomedical application contexts. [PDF]

open access: yes, 2007
Polyoxazolines of various architectures and chemical functionalities can be prepared in a living and therefore controlled manner via cationic ring-opening polymerisation.
Adams, Nico, Schubert, Ulrich S
core   +1 more source

Cyanoacetamidobetaine—A Zwitterionic Nitrile Derivative

open access: yesChemistryOpen, EarlyView.
The reaction of sodium dicyanamide with betainium chloride in aqueous solution affords N‐cyano‐2‐(trimethylammonio)acetaminide (cyanoacetamidobetaine). Single crystal X‐ray diffraction reveals a monoclinic structure comprising a trimethylammonium head group connected to a cyanoacetaminide unit via a methylene bridge.
Pan Duan   +5 more
wiley   +1 more source

Nano- and Macroscale Study of the Lubrication of Titania Using Pure and Diluted Ionic Liquids

open access: yesFrontiers in Chemistry, 2019
Titanium is a strong, corrosion-resistant light—weight metal which is poised to replace steel in automobiles, aircraft, and watercraft. However, the titanium oxide (titania) layer that forms on the surface of titanium in air is notoriously difficult to ...
Peter K. Cooper   +5 more
doaj   +1 more source

Cationic‐Hydrophilic Di‐Block Copolymers: Surface‐Shielded Vectors for Gene Delivery

open access: yesJournal of Polymer Science, Volume 63, Issue 6, Page 1419-1432, 15 March 2025.
This study develops synthetic polycationic di‐block carriers for nucleic acid (NA) delivery in gene therapy. Consisting of a cationic block and a hydrophilic block, these carriers efficiently form complexes with NAs and shield them with a protective bioinert layer, enhancing stability during circulation in the bloodstream while reducing undesirable ...
Eliška Hrdá   +4 more
wiley   +1 more source

Mechanistic studies on DNA damage by minor groove binding copper–phenanthroline conjugates [PDF]

open access: yes, 2005
Copper–phenanthroline complexes oxidatively damage and cleave nucleic acids. Copper bis-phenanthroline and copper complexes of mono- and bis-phenanthroline conjugates are used as research tools for studying nucleic acid structure and binding interactions.
Bales, Brian C.   +5 more
core   +2 more sources

Ionogel Actuators: A Review

open access: yesSmartBot, EarlyView.
Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao   +5 more
wiley   +1 more source

Methoxy-phenyl groups reduce the cytotoxicity and increase the aqueous solubility of phosphonium zwitterions and salts [PDF]

open access: yes, 2019
The ability of phosphonium cations to act as intracellular transport vectors is well-established. Previous research has demonstrated that phosphonioalkylthiosulfate zwitterions, and -thioacetylalkylphosphonium salts are useful precursors for the ...
Allen, David   +5 more
core   +1 more source

Synthesis and Antimicrobial Activity of Carboxylate Phosphabetaines Derivatives with Alkyl Chains of Various Lengths

open access: yesJournal of Chemistry, 2013
The purpose of the present study was to investigate the antibacterial activity of fifteen novel nanosized alkyl esters of carboxylate phosphabetaine: β-(carboxyalkyl)ethyltriphenylphosphonium bromides 4–8, β-(carboxyalkyl)-β ...
Irina V. Galkina   +6 more
doaj   +1 more source

Preparation and Characterization of Novel Cationic Chitosan Derivatives Bearing Quaternary Ammonium and Phosphonium Salts and Assessment of Their Antifungal Properties

open access: yesMolecules, 2017
Chitosan is an abundant and renewable polysaccharide, its derivatives exhibit attractive bioactivities and the wide applications in various biomedical fields.
Wenqiang Tan   +4 more
doaj   +1 more source

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