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- Title
Silane Modified Diopside for Improved Interfacial Adhesion and Bioactivity of Composite Scaffolds.
- Authors
Cijun Shuai; Chenying Shuai; Pei Feng; Youwen Yang; Yong Xu; Tian Qin; Sheng Yang; Chengde Gao; Shuping Peng
- Abstract
Diopside (DIOP) was introduced into polyetheretherketone/polyglycolicacid (PEEK/PGA) scaffolds fabricated via selective laser sintering to improve bioactivity. The DIOP surface was then modified using a silane coupling agenţ 3-glycidoxypropyltrimethoxysilane (KH570), to reinforce interfacial adhesion. The results showed that the tensile properties and thermal stability of the scaffolds were significantly enhanced. It could be explained thaţ on the one hand, the hydrophilic group of KH570 formed an organic covalent bond with the hydroxy group on DIOP surface. On the other hand, there existed relatively high compatibility between its hydrophobic group and the biopolymer matrix. Thus, the ameliorated interface interaction led to a homogeneous state of DIOP dispersion in the matrix. More importantly, an in vitro bioactivity study demonstrated that the scaffolds with KH570-modified DIOP (KDIOP) exhibited the capability of forming a layer of apatite. In addition, cell culture experiments revealed that they had good biocompatibility compared to the scaffolds without KDIOP. It indicated that the scaffolds with KDIOP possess potential application in tissue engineering.
- Subjects
SILANE compounds; DIOPSIDE; GLYCOLIC acid; TISSUE scaffolds; HYDROPHILIC compounds; BIOCOMPATIBILITY; COVALENT bonds
- Publication
Molecules, 2017, Vol 22, Issue 4, p511
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules22040511