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Biomedical Sensing with Hydroxyapatite Ceramics in GHz Frequency Range

Korostynska, O and Gandhi, AA and Mason, A and Al-Shamma'a, A and Tofail, SAM (2013) Biomedical Sensing with Hydroxyapatite Ceramics in GHz Frequency Range. Key Engineering Materials, 543. pp. 26-29. ISSN 1013-9826

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Abstract

Hydroxyapatite (HA) is a leading biocompatible material extensively used for bone implants as a porous ceramic graft and as a bioactive coating. Electrical characteristics of HA can be employed in implantable devices for real-time in vivo pressure sensor applications such as in knee or hip prosthesis. In particular, high piezo and pyroelectricity of HA, its polarisation by electron beam and selective adsorption of proteins on polarised domains indicate the potential for real-time biosensing applications of HA. For this purpose, a comprehensive understanding of the dielectric behaviour of different forms of HA over a frequency range relevant for biomedical sensing is critical. Such information for HA, especially its frequency dependent dielectric behaviour over the GHz range, is rare. To this end, we report on novel investigations of properties of HA in powder and film forms in the GHz frequency range.

Item Type: Article
Uncontrolled Keywords: 09 Engineering
Subjects: R Medicine > R Medicine (General)
T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Built Environment
Publisher: TRANS TECH PUBLICATIONS LTD
Related URLs:
Date Deposited: 11 Feb 2016 09:44
Last Modified: 11 Feb 2016 09:44
DOI or Identification number: 10.4028/www.scientific.net/KEM.543.26
Editors: Hristoforou, E and Vlachos, DS
URI: http://researchonline.ljmu.ac.uk/id/eprint/2908

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