56 research outputs found
Investigating the atmospheric pressure plasma jet modification of a photo-crosslinkable hydrogel
Atmospheric pressure plasma jets (APPJ) have great potential in wound healing, bacterial disinfection and in cancer therapy. Recent studies pointed out that hydrogels can be used as screens during APPJ treatment, or even be used as reservoirs for reactive oxygen and nitrogen species generated by APPJ in liquids. Thus, novel applications are emerging for hydrogels which deserve fundamental exploration of the possible modifications undergone by the polymers in solution due to the reactivity with plasmas. Here we investigate the possible modifications occurred by APPJ treatment of an amphiphilic poly(ethylene oxide)-based triblock copolymer (tPEO) photo-crosslinkable hydrogel. While APPJ treatments lead to a certain degradation of the self-assembly of the polymeric chains at low concentrations (2 g/L), the polymeric chains are unaffected by APPJ and the hydrogel forming ability is kept. APPJ treatments induced a pre-crosslinking of the network with an increase of the mechanical properties of the hydrogel. Overall, the small modifications induced allow thinking of polymer solutions with hydrogel forming ability a new platform for several applications related to plasma medicine, and thus, with potential in different therapies.Postprint (author's final draft
Formation of porous hydrogels by self-assembly of photo-cross-linkable triblock copolymers in the presence of homopolymers
International audienc
Structure and Viscoelasticity of Mixed Micelles Formed by Poly(ethylene oxide) End Capped with Alkyl Groups of Different Length
International audienc
Transient Gelation and Glass Formation of Reversibly Cross-linked Polymeric Micelles
International audienc
Straightforward synthesis of poly(lauryl acrylate)-b-poly(stearyl acrylate) diblock copolymers by ATRP
International audienc
Self-assembly of functional polymer promoting both charge-transfer complexes and hydrogen bonds towards Janus nanocylinders
National audienc
Self-Assembling Properties of Well-Defined Poly(ethylene oxide)- b -poly(ethyl acrylate) Diblock Copolymers
International audienc
Charge-Transfer and hydrogen bonds: two supramolecular interactions combined to form Janus nanocylinders
International audienc
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