Calcium phosphate crystallization on polyglycine, polytyrosine and polymethionine |
| |
Authors: | A. Chrissanthopoulos P. Malkaj E. Dalas |
| |
Affiliation: | aDepartment of Chemistry, University of Patras, GR-26504 Patras, Greece |
| |
Abstract: | The kinetics of hydroxyapatite (HAP) crystallization on the polyaminoacids polyglycine, polytyrosine, polymethionine, was investigated by the constant composition technique. The apparent order for the crystallization process was found to be 2, indicative of a surface diffusion control mechanism. There are three possible mechanisms for critical nucleus formation with size n* = 3 ± 1 as defined by computational chemistry calculations at 310 K. The calculated surface energy from kinetic data for the growing HAP phase was 109 ± 15 mJ m− 2. |
| |
Keywords: | A1 Nucleation A2 Growth from solutions A1 Computer simulation B1 Minerals |
本文献已被 ScienceDirect 等数据库收录! |
|