125MeV Si9+ ion irradiation of calcium phosphate thin film coated by rf-magnetron sputtering technique

被引：12
作者：
Elayaraja, K. [1 ]
Joshy, M. I. Ahymah [1 ]
Suganthi, R. V. [1 ]
Kalkura, S. Narayana [1 ]
Palanichamy, M. [2 ]
Ashok, M. [3 ]
Sivakumar, V. V. [4 ]
Kulriya, P. K. [4 ]
Sulania, I. [4 ]
Kanjilal, D. [4 ]
Asokan, K. [4 ]
机构：
[1] Anna Univ, Ctr Crystal Growth, Madras 600025, Tamil Nadu, India
[2] Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
[3] Natl Inst Technol, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India
[4] Inter Univ Accelerator Ctr, New Delhi 110067, India
来源：
APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 06期
关键词：
Biomaterials; rf-magnetron sputtering; Ion beam irradiation; Cell viability; HAp; MODIFIED STAINLESS-STEEL; HIGH-ENERGY; HYDROXYAPATITE DEPOSITION; PART I; WETTABILITY; SURFACE; BEAM; SUBSTRATE; COATINGS;
D O I：
10.1016/j.apsusc.2010.09.062
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Titanium substrate was coated with hydroxyapatite by radiofrequency magnetron sputtering (rf-magnetron sputtering) technique and subjected to swift heavy ion (SHI) irradiation of 125MeV with Si9+ at fluences of 1x10(10), 1x10(11) and 1x10(12) ions/cm(2). The glancing incidence X-ray diffraction (GIXRD) analysis confirmed the HAp phase of the irradiated film. There was a considerable decrease in crystallinity and particle size after irradiation. In addition, DRS-UV reflectance spectra revealed a decrease in optical band gap (E-g) from 5.2 to 4.6 eV. Wettability of biocompatible materials plays an important role in biological cells proliferation for tissue engineering, drug delivery, gene transfer and bone growth. HAp thin films irradiated with 1x10(11) ions/cm(2) fluence showed significant increase in wettability. While the SHI irradiated samples exhibited enhanced bioactivity, there was no significant variation in cell viability. Surface roughness, pores and average particle size were analyzed by atomic force microscopy (AFM). (C) 2010 Elsevier B.V. All rights reserved.
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页码：2134 / 2141
页数：8
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