The present invention provides a system comprising: (i) a layer containing a nitrite; and (ii) a hydrogel that contains hydrogen ions. The invention also provides the use of a system of the invention for the treatment of a condition associated with tissue ischaemia or a wound and the use of a system of the invention in combination with an anaesthetic for the treatment or prevention of pain.

Articles are prepared to have a substrate and a silver-containing composition on either or both supporting sides of the substrate. The silver-containing composition can comprise either reducible silver ions or silver nanoparticles, complexed with a reactive polymer. The reactive polymer comprises: (a) greater than 1 mol % of recurring units comprising sulfonic acid or sulfonate groups, (b) at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition, and optionally (c) at least 1 mol % of recurring units comprising a pendant amide, hydroxyl, lactam, phosphonic acid, or carboxylic acid group. Some other articles have a water-insoluble complex of reacted (crosslinked) polymer with reducible silver ions or silver nanoparticles on either or both supportive sides of the substrate. Such reacted polymer is derived from the noted reactive polymer.

Articles are prepared to have a substrate and a silver-containing composition on either or both supporting sides of the substrate. The silver-containing composition can comprise either reducible silver ions or silver nanoparticles, complexed with a reactive polymer. The reactive polymer comprises: (a) greater than 1 mol % of recurring units comprising sulfonic acid or sulfonate groups, (b) at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition, and optionally (c) at least 1 mol % of recurring units comprising a pendant amide, hydroxyl, lactam, phosphonic acid, or carboxylic acid group. Some other articles have a water-insoluble complex of reacted (crosslinked) polymer with reducible silver ions or silver nanoparticles on either or both supportive sides of the substrate. Such reacted polymer is derived from the noted reactive polymer.

Described herein are compositions for tunable intrinsically conducting elastomers and methods of making and using the same. The compositions include a conductive polymer, a polymer counterion, and optionally a bottlebrush block copolymer. Optionally, the compositions include a crosslinker and a photoinitiator. Also described herein are copolymer blends, elastomeric materials, and films including any one of the intrinsically conducting elastomers.

Described herein are compositions for tunable intrinsically conducting elastomers and methods of making and using the same. The compositions include a conductive polymer, a polymer counterion, and optionally a bottlebrush block copolymer. Optionally, the compositions include a crosslinker and a photoinitiator. Also described herein are copolymer blends, elastomeric materials, and films including any one of the intrinsically conducting elastomers.

The invention provides a medical device comprising a fluoropolymer surface comprising at least one species independently chosen from: a carboxybetaine, a sulfobetaine, and combinations and/or polymers thereof.

The invention provides a medical device comprising a fluoropolymer surface comprising at least one species independently chosen from: a carboxybetaine, a sulfobetaine, and combinations and/or polymers thereof.

A TPC-OTBS n-hexane solution is added to a mixture of TPC-OSO.sub.2F, DMF, and DBU and allowed to stand to produce a crosslinked solvent gel; the crosslinked solvent gel is added to methanol, stirred, and dried to produce the porous crosslinked material. The gel acquired can be prepared into a pore-rich solid porous organic polymer material by means of solvent exchange. SEM and TEM are used to characterize the surface and internal morphologies of the solid material, and the porous morphology thereof is discovered, with large pores being the majority. Infrared and nuclear magnetic resonance are used to characterize the structure of a crosslinked polysulfate; the complete reaction of a sulfuryl fluoride group is proven by means of solid-state fluorine nuclear magnetic resonance spectroscopy and XPS element analysis; and the porous structure of the crosslinked polysulfate allows same to be provided with improved application prospect in terms of adsorption.

Provided is an electrically conductive elastomer with high stretchability and high durability. A method of synthesizing an electrically conductive elastomer includes (a) preparing a eutectic solvent by mixing quaternary ammonium salt and organic acid, and (b) adding and blending the eutectic solvent with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), a photocuring agent, and a crosslinker and performing photopolymerization.

Provided is an electrically conductive elastomer with high stretchability and high durability. A method of synthesizing an electrically conductive elastomer includes (a) preparing a eutectic solvent by mixing quaternary ammonium salt and organic acid, and (b) adding and blending the eutectic solvent with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), a photocuring agent, and a crosslinker and performing photopolymerization.