High energy irradiation - a tool for enhancing the bioactivity of hydroxyapatite

被引：33

作者：

Girija, E. K. ^{[1
]}

Parthiban, S. P. ^{[1
]}

Suganthi, R. V. ^{[1
]}

Elayaraja, K. ^{[1
]}

Joshy, M. I. A. ^{[1
]}

Vani, R. ^{[1
]}

Kularia, P. ^{[2
]}

Asokan, K. ^{[2
]}

Kanjilal, D. ^{[2
]}

Yokogawa, Y. ^{[3
]}

Kalkura, S. Narayana ^{[2
]}

机构：

[1] Anna Univ, Ctr Crystal Growth, Madras 600025, Tamil Nadu, India

[2] Inter Univ Accelerator Ctr, New Delhi 110067, India

[3] Osaka City Univ, Grad Sch Engn, Dept Intelligent Mat Engn, Osaka 5588585, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2008年 / 116卷 / 1350期

关键词：

irradiation; swift heavy ion; microwave; hydroxyapatite; bioactivity;

D O I：

10.2109/jcersj2.116.320

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

The effect of swift heavy ion irradiation on the surface modification and bioactivity of microwave sintered hydroxyapatite (HAp) pellets has been studied. The irradiated surface of the pellets was completely covered by tightly packed rectangular platy crystals. The pellets subjected to 300 degrees C conventional sintering (after microwave sintering) before irradiation showed a plain surface. XRD studies confirmed the surface to be HAp but decrease in crystallinity and crystal size was observed. In vitro bioactivity study had revealed the formation of unique three dimensional macroporous apatite layer on irradiated surfaces. The irradiation with swift heavy oxygen ions enhanced the bioactivity of the HAp bioceramics.

引用

页码：320 / 324

页数：5

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