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- Title
Competitive adsorption of bovine serum albumin and lysozyme on characterized calcium phosphates by polyacrylamide gel electrophoresis method.
- Authors
Zhu, X. D.; Fan, H. S.; Zhao, C. Y.; Lu, J.; Ikoma, T.; Tanaka, J.; Zhang, X. D.
- Abstract
Characterizations of hydroxyapatite (HA), biphasic calcium phosphate (BCP) and beta tricalcium phosphate (β-TCP) ceramic particles were carried out using X-ray diffusion (XRD), Scanning electron micrograph (SEM), Particle Sizer and Zeta potential analyzer. Competitive adsorption of bovine serum albumin (BSA) and lysozyme (LSZ) on the three calcium phosphates were investigated by polyacrylamide gel electrophoresis (PAGE) method. The results showed that HA, BCP and β-TCP ceramic particles with irregular shapes and similar size distributions all had negative surface net charges in pH7.4 phosphate buffered saline (PBS) solution and exhibited alike behaviors of BSA and LSZ adsorption. LSZ had higher affinity for calcium phosphate ceramics than BSA and its adsorption on them didn’t be almost influenced by the increasing of BSA concentration in the solution. Electrostatic interaction played an important role on the competitive adsorption of BSA and LSZ on the surface of calcium phosphate ceramic particles.
- Subjects
ADSORPTION (Chemistry); SURFACE chemistry; SERUM albumin; ALBUMINS; LYSOZYMES; GLYCOSIDASES; CALCIUM phosphate; POLYACRYLAMIDE gel electrophoresis; GEL electrophoresis
- Publication
Journal of Materials Science: Materials in Medicine, 2007, Vol 18, Issue 11, p2243
- ISSN
0957-4530
- Publication type
Article
- DOI
10.1007/s10856-006-0057-2