Degradation of polylactic acid / hydroxyapatite and polyglycolic acid in simulated body fluid
Published 2011-12-15
Keywords
- biomaterial,
- impedance,
- microbalance,
- hydrolytic degradation
How to Cite
Abstract
In this work the degradation of composites of polylactic acid, polyglycolic acid and hydroxyapatite in a simulated physiological electrolyte solution was evaluated by electrochemical quartz crystal microbalance. The materials were obtained at different concentrations and cathodically electrodeposited on piezoelectric quartz crystals to form thin films. Coated crystals were immersed for 1, 3, 5, 7 and 10 days in simulated body fluid at temperature and pH constant at each interval analysis was performed Electrochemical Impedance Spectroscopy and Quartz Crystal Microbalance that allowed to relate the frequency change of the microbalance with the total electric charge transferred in the process of degradation.
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References
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