Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 30, Issue 18, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201900998
Keywords
adhesives; glue gun; polycaprolactone; sealing; wound healing
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Funding
- US-Israel Binational Science Foundation (BSF) [2015182]
- US-Israel Binational Science Foundation (BSF)
- Russell Berrie Nanotechnology Institute, Technion
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Tissue bioadhesives are widely used in dermatology, surgery rooms, and in the field. Despite their advantages over sutures and staples, currently available tissue glues are limited by their mechanical properties and toxicity. Here, a new approach is described for wound closure that is based on a biocompatible, low melting point four-armed N-hydroxy succinimide-modified polycaprolactone (star-PCL-NHS). Star-PCL-NHS is inserted into a hot melt glue gun, melts upon minimal pressure, and is extruded directly onto the wound, where it solidifies, bonding strongly with both edges of the wound. Changes in molecular weight allow control of adhesive strength, melting point, and elasticity properties. In vitro and in vivo evaluations confirm the biocompatibility of this system. The straightforward synthetic scheme and the simple delivery method, combined with the desirable mechanical properties, tunability, and tissue compatibility, are desirable traits in wound management.
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