Evaluation of the surface physical properties of β-tricalcium phosphate/silicone rubber, a prospective soft-tissue implant material

摘要

Silicone rubber (SR) is one of the most commonly used and effective implant materials for soft-tissue augmentation, but it has been implicated in many adverse reactions. To overcome this drawback, a novel composite β-tricalcium phosphate/silicone rubber ((J-TCP/SR) was prepared by compounding a SR matrix with β-TCP. The surface physical properties of β-TCP/SR were evaluated. AFM images showed that β-TCP/SR exhibited greater surface roughness than SR. The XRD and XPS analyses revealed that the addition of pi-TCP changed the surface microstructure and charge distributioa FTIR analysis showed that the interaction between β-TCP and SR was weak, which may be due to the tetrahedral structure of PO3/4~-. These results suggest that the addition of β-TCP in a SR matrix can change the surface microstructure and may improve cytocompatibility, consistent with results from a previous study.