Paper Title:
A/W Bioactive Glass Particles in HEPES Solutions
  Abstract

A/W bioactive glass (BG) particles (600-1000 microns) were soaked in 0.1 M 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) solutions (0.01 g BG per 1 mL solution) at three pH ranges (acidic: 4.45-6.31, neutral: 7.45-7.64 and basic: 10.31-10.42). Crystalline calcium phosphates developed on BG surfaces after soaking in either acidic or neutral solutions. Electron diffraction (ED) results showed that whitlockite and octa-calcium phosphate (OCP) were the newly developed materials on BG in the acidic HEPES solution after soaking for 7 d and 14 d, respectively. Whitlockite also developed on the BG particles in the neutral solution of 0.5Na-HEPES after soaking for 14 d. No crystalline materials developed on BG surfaces after soaking in the basic Na-HEPES solution up to 14 d. The results of this study demonstrated that the pH of a soaking solution strongly affect both the ions release of the A/W BG particles, and the development of crystalline calcium phosphates on BG particles.

  Info
Periodical
Key Engineering Materials (Volumes 284-286)
Main Theme
Edited by
Panjian Li, Kai Zhang and Clifford W. Colwell, Jr.
Pages
501-504
DOI
10.4028/www.scientific.net/KEM.284-286.501
Citation
K. Zhang, D. C. Bell, L. F. Francis, "A/W Bioactive Glass Particles in HEPES Solutions ", Key Engineering Materials, Vols. 284-286, pp. 501-504, 2005
Online since
April 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chikara Ohtsuki, H. Inada, Masao Tanihara, Masanobu Kamitakahara, Toshiki Miyazaki
59
Authors: B.J.M. Leite Ferreira, M.G.G.M. Duarte, M. Helena Gil, Rui N. Correia, J. Román, Maria Vallet-Regí
581
Authors: Xiao Feng Chen, Ying Jun Wang, Na Ru Zhao, Jian Dong Ye, Yu Dong Zheng, Cheng Yun Ning, Gang Wu
Abstract:The biomaterials in system CaO-P2O5-SiO2 were synthesized via sol-gel method. The biomaterials can be applied to bone reparation and bone...
1609
Authors: Chang Sheng Liu, Chien Wen Chen, Paul Ducheyne
Abstract:In this paper, the hydration product of calcium phosphate cement with bioactive glass containing Si was used to investigate the effect of...
823
Authors: Dan Nicolae Ungureanu, Nicolae Angelescu, Adrian Catangiu, Elena Valentina Stoian, Cristiana Zizi Rizescu, Daniela Avram
Abstract:Bioactive glasses based on SiO2-CaO-P2O5 system have been synthesized by sol – gel process. The powder glass...
21