Enhanced biostability of polyurethane containing gold nanoparticles
Journal
Polymer Degradation and Stability
Journal Volume
85
Journal Issue
1
Pages
675-680
Date Issued
2004
Author(s)
Abstract
We have prepared a polyether-type polyurethane (PU) containing 0.043% gold nanoparticles (∼5nm) by mixing the waterborne PU with gold suspension, casting and drying at 60 °C. The gold nanoparticles were found to be well dispersed in PU. A significant increase in the pyrolysis temperature and the glass transition temperature was demonstrated in the nanocomposite PU films. The biostability was tested in a rat subcutaneous model. After 19 days of implantation, the PU containing gold showed less surface degradation as well as much reduced tissue reaction. © 2004 Elsevier Ltd. All rights reserved.
SDGs
Type
journal article