Abstract
In this study, we developed an injectable carrier for demineralized bone matrix (DBM) which consists of chitosan and glycerol phosphate (GP). The phase transition behaviors of chitosan and GP solution characterized as a function of temperature. The chitosan and GP solutions were shown to form a sol at room temperature, and the chitosan solution with 10-20 wt% concentrations were found to undergo sol-to-gel phase transitions as the temperature was increased. In situ gel forming implant in vivo was successfully fabricated by simple subcutaneous injection of chitosan and GP solutions with demineralized bone matrix (DBM). von Kossa images of the gel implant formed from solution with DBM revealed the presence of mineral deposits.
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