Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Surface Modification of Bioglass with Phosphatidyl Cholines

ZHAO Na-Ru1, 2, 3, WANG Ying-Jun 1, 2, 3, Du Chang1,2, 3, DENG Yan-Jie2, CAI Yan2   

  1. (1. Key Laboratory of Specially Functional Materials, Ministry of Education, South China University of Technology, Guangzhou 510641, China; 2. College of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; 3. Institute of Biomedical Engineering, South China University of Technology, Guangzhou 510641, China )
  • Received:2008-11-05 Revised:2009-04-01 Published:2009-09-20 Online:2009-09-20

Abstract: Bioglass powders were treated with phosphatidyl cholines, and the interactions between bioglass and phosphatidyl cholines were studied by thermal analysis and fourier transform infrared spectroscopy (FTIR). The phosphatidyl cholines are adhered on the bioglass surface through weak interactions such as hydrogen bonds. Surface modification of bioglass particles improves the compressive strength of the bioglass/chitosan composites. SEM observation indicates a uniform distribution of modified bioglass particles in the chitosan matrix. The results suggest that the surface modification by phosphatidyl cholines can effectively enhance the interfacial interaction between bioglass particles and chitosan matrix.

Key words: phosphatidyl choline, bioglass, surface modification

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