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Design and characteristics of hydroxyapatites: effect of radiation
Author(s): Jayati Bhavsar; Areeba Tufail; Pooja Gautam; Brad Arnold; Fow-Sen Choa; Lisa Kelly; Brian Cullum; Paul Smith; Ching Hua Su; K. D. Mandal; N. B. Singh
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Paper Abstract

We have prepared silicate based hard materials and have processed it with organic flux. Because of the bioactivities of hydroxyapatites with tissues, this class of materials have attracted interest for bone applications. We have utilized low temperature processing techniques. Organic melt was used and the directional solidification method to cast the shaped sample. This organic treated material has different characteristics than coarsened oxide materials. Our approach involved low temperature processing using nano and micron sized powders of the material system Na2OK2O- CaO- MgO-Ga2O3-SiO2, and titanates were processed by sintering and grain growth. Our results indicate that substitution of gallium and magnesium or titanium with some variation in processing methods have great potential to improve the glassy characteristics without decreasing the mechanical properties of bones. Effect of radiation on bone was studied by exposing with commercially available Cs137 gamma ray source. It was observed that electrical resistivity increased due to radiation exposure for this system.

Paper Details

Date Published: 14 May 2018
PDF: 6 pages
Proc. SPIE 10662, Smart Biomedical and Physiological Sensor Technology XV, 1066205 (14 May 2018); doi: 10.1117/12.2301032
Show Author Affiliations
Jayati Bhavsar, Univ. of Maryland, Baltimore County (United States)
Areeba Tufail, Univ. of Maryland, Baltimore County (United States)
Pooja Gautam, Indian Institute of Technology, Banaras Hindu Univ. (India)
Brad Arnold, Univ. of Maryland, Baltimore County (United States)
Fow-Sen Choa, Univ. of Maryland, Baltimore County (United States)
Lisa Kelly, Univ. of Maryland, Baltimore County (United States)
Brian Cullum, Univ. of Maryland, Baltimore County (United States)
Paul Smith, Univ. of Maryland, Baltimore County (United States)
Ching Hua Su, NASA Marshall Space Flight Ctr. (United States)
K. D. Mandal, Indian Institute of Technology, Banaras Hindu Univ. (India)
N. B. Singh, Univ. of Maryland, Baltimore County (United States)


Published in SPIE Proceedings Vol. 10662:
Smart Biomedical and Physiological Sensor Technology XV
Brian M. Cullum; Douglas Kiehl; Eric S. McLamore, Editor(s)

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