Results 91 to 100 of about 169,227 (310)

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

open access: yesAdvanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer   +2 more
wiley   +1 more source

A facile 2,2,2-trifluoroethyl fatty acid ester synthesis with phenyl(2,2,2-trifluoroethyl)iodonium triflate at room temperature

open access: yesGreen Chemistry Letters and Reviews, 2017
A series of complex 2,2,2-trifluoroethyl fatty acid esters were synthesized by the reaction of fatty acids and phenyl(2,2,2-trifluoroethyl)iodonium triflate in the presence of Cs2CO3.
Qiu-Yan Han   +3 more
doaj   +1 more source

1-alkoxyvinyl esters as synthetic intermediates [PDF]

open access: yes, 1968
The chemistry and properties of 1-alkoxyvinyl esters and of cyclopropanones are reviewed. \ud A number of 1-ethoxyvinyl esters have been isolated, both for their intrinsic interest and also because of their value as synthetic intermediates. \ud Phthaloyl and 4-nitrophthaloyl derivatives of amino-acid esters have been prepared by reaction of phthalic ...
openaire   +1 more source

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez   +4 more
wiley   +1 more source

Quaterpyridine Ligands for Panchromatic Ru(II) Dye Sensitizers [PDF]

open access: yes, 2012
A new general synthetic access to carboxylated quaterpyridines (qpy), of interest as ligands for panchromatic dyesensitized solar cell organometallic sensitizers, is presented.
Abbotto, Alessandro   +6 more
core   +1 more source

Ester-Based Synthetic Information Oligomers

open access: yes, 2019
Nature has long inspired chemists to replicate the molecules produced by evolution. Arguably, the most important of these are the nucleic acids because of the ability to store and transfer information through duplex formation using Watson-Crick base pairing. Biochemists have prepared modified DNA analogues, in which the phosphate diester units used for
openaire   +1 more source

Anti-Picornavirus Activity of Synthetic Flavon-3-yl Esters

open access: yesAntiviral Chemistry and Chemotherapy, 1998
The in vitro antiviral activity against picornaviruses (rhinovirus serotype 1B and 14, and poliovirus type 2) of new synthetic 3-hydroxyflavones, 3-acetoxyflavones, and substituted cinnamic and benzoic acid flavon-3-yl esters was evaluated. The maximum non-toxic concentration of compounds was determined in a human cell line (HeLa) suitable for the ...
CONTI, Cinzia   +3 more
openaire   +3 more sources

Mechanochromism of Glassy Polymers Enabled by a Loop‐Forming Supramolecular Mechanophore

open access: yesAdvanced Functional Materials, EarlyView.
The supramolecular mechanophore LOOP is covalently introduced into glassy polymers, capable of reporting force‐induced pre‐failure damage and local fracture events in polymer glasses. Under different mechanical deformation modes, including grinding, tensile stretching, and scratching, LOOP probes irreversible events in polymer glasses through a ...
Linlin Deng   +6 more
wiley   +1 more source

Method for milling and drilling glass [PDF]

open access: yes, 1980
A process for machining glass by placing a rotating carbide working surface under minimum pressure against an area of glass to be worked is described.
Rice, S. H.
core   +1 more source

Photo‐Controlled Antibacterial Drug Release From DASA‐Coated Silica Particles for Improved Treatment of Wound Infections

open access: yesAdvanced Functional Materials, EarlyView.
Synthesis and characterization of light‐responsive donor–acceptor Stenhouse adducts (DASA)‐coated chlorhexidine‐loaded silica nanoparticles. Such a controllable drug‐delivery system enables the release of the antimicrobial drug on demand and in consecutive cycles, thereby maintaining the concentration within the therapeutic window.
Michèle Clerc   +9 more
wiley   +1 more source

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