Electrochemical Evaluation of a Semisynthetic Biocomposite Obtained from Rice Husk for Use as Bone Filler

In this work, a biocomposite is obtained calcium phosphate and silica extracted from rice hulls in order to be used as bone filler, for cases where the patient has significant bone loss. Techniques of electrochemical impedance spectroscopy (EIS), Tafel curves and corrosion potential, to evaluate the...

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Published in:Chemical engineering transactions 2016-05, Vol.49
Main Authors: N. Montanez Supelano, D. Pena Ballesteros, D. Hernandez
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D. Hernandez
description In this work, a biocomposite is obtained calcium phosphate and silica extracted from rice hulls in order to be used as bone filler, for cases where the patient has significant bone loss. Techniques of electrochemical impedance spectroscopy (EIS), Tafel curves and corrosion potential, to evaluate the surface electrochemically material was used when in contact with a physiological fluid (SBF). It was possible to obtain an impedance spectrum, which shows the phenomena of mass and charge exchange occurring on the surface of the material. With the use of electrochemical techniques other is set for each surface, the rate of degradation of material calcium phosphate and silica in concentrations 70-30 and 30-70% w / w respectively. Finally, through statistical analysis demonstrated the best performance by polarization resistance shown. The surface morphology was analized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS).
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title Electrochemical Evaluation of a Semisynthetic Biocomposite Obtained from Rice Husk for Use as Bone Filler
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