Electrochemical reduction of an exemplary ATRP catalyst, C 11 Br 2 /Me 6 TREN, is shown to be an efficient process to mediate and execute an ATRP. The onset of polymerization occurs only through passage of a cathodic current achieved under a reductive potential to form Cu 1 Br 2 /Me 6 TREN, within the reaction medium. Unprecedented control over the polymerization kinetics can be attained through electrochemical methods by modulating the magnitude of the applied potential allowing polymerization rate enhancement or retardation. Additional polymerization control is gained through electrochemical “dials” allowing polymerization rate enhancements achieved by larger applied potentials and the ability to successfully switch a polymerization “on” and “off between dormant and active states by application of multistep intermittent potentials.

https://science.sciencemag.org/content/sci/332/6025/81.full.pdf

Electrochemically mediated atom transfer radical polymerization

Implants are described herein which contain an activated adhesive on at least a portion of the surface of the implant. A release sheet may be positioned over at least a portion of the adhesive. Packages which contain the implants and methods of preparing the implants are also described.

Self-adherent implants and methods of preparation

Compositions comprising anti-fibrotic agent(s) and/or polymeric compositions can be used in various medical applications including the prevention of surgical adhesions, treatment of inflammatory arthritis, treatment of scars and keloids, the treatment of vascular disease, and the prevention of cartilage loss.

Polymer compositions and methods for their use

A biocompatible and biodegradable hydrogel compound, which is free of a hemostatic agent, is applied to arrest the flow of blood or fluid from body tissue. The compound preferably includes a protein comprising recombinant or natural serum albumin, which is mixed with a polymer that comprises poly(ethylene) glycol (PEG), and, most preferably, a multi-armed PEG polymer.

Compositions, systems, and methods for arresting or controlling bleeding or fluid leakage in body tissue

A multi-layer reduced pressure delivery apparatus is provided for applying reduced pressure tissue treatment to a tissue site. The multi-layer apparatus includes a tissue contact layer, a release layer, and a manifold layer. The tissue contact layer includes a scaffold adapted to contact the tissue site, the release layer includes a hydrogel-forming material and a plurality of flow channels, and the manifold layer includes a distribution manifold. The release layer is positioned between the tissue contact layer and the manifold layer to allow easy release of the manifold layer from the tissue contact layer following the administration of reduced pressure tissue treatment.

Biocompatible wound dressing

Water-soluble macromers including at least one hydrolysable linkage formed from carbonate or dioxanone groups, at least one water-soluble polymeric block, and at least one polymerizable group, and methods of preparation and use thereof are described. The macromers are preferably polymerized using free radical initiators under the influence of long wavelength ultraviolet light or visible light excitation. Biodegradation occurs at the linkages within the extension oligomers and results in fragments which are non-toxic and easily removed from the body. The macromers can be used to encapsulate cells, deliver prophylactic, therapeutic or diagnostic agents in a controlled manner, plug leaks in tissue, prevent adhesion formation after surgical procedures, temporarily protect or separate tissue surfaces, and adhere or seal tissues together.

Polymerizable biodegradable polymers including carbonate or dioxanone linkages

PROBLEM TO BE SOLVED: To provide a biodegradable and biocompatible macromer capable of forming a hydrogel more elastic than a conventional hydrogel by rapidly polymerizing in vivo. SOLUTION: The water-soluble macromer includes at least one hydrolysable linkage formed from carbonate or dioxanone groups, at least one water-soluble polymeric block, and at least one polymerizable group. The method of preparation and use thereof are also provided. The macromer is preferably polymerized using a free radical initiator under the influence of long wavelength ultraviolet light or visible light excitation. Biodegradation occurs at the linkages within the extension oligomers and results in fragments which are non-toxic and easily removed from the body. COPYRIGHT: (C)2007,JPO&INPIT

Polymerizable biodegradable polymer including carbonate or dioxanone linkage

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Polymerizable biodegradable polymers including carbonate or dioxanone linkages

Polymerizable biodegradable polymer including carbonate or dioxanone linkage