Paper Title:
In Vitro Bioactivity of Bi-Structured Nano-Hybrids in the CaO-SiO2-PTMO System
  Abstract

Synthetic model of a large transparent crack-free monolithic ceramic-polymer hybrid, which was synthesized using triethoxysilane end-capped poly(tetramethylene oxide) (Si-PTMO) and tetraethoxysilane (TEOS), was examined in the CaO-SiO2-PTMO sol-gel system. Bulk precursor with nominal mass ratio of PTMO: TEOS = 80: 20 and surface precursor with nominal molar ratio of TEOS: Ca(NO3)2 = 1: 0.3 were subjected to hybridization through hydrolysis and condensation process, producing a bi-structured hybrid in which polymeric bulk was molecular hybridized with bioactive silicate surface. Spectroscopic and microscopic characterizations revealed that the surface of hybrid was typical bioactive silicate. In vitro study using a simulated body fluid (SBF) revealed that the hybrid formed an apatite on its surface within 6 hours in SBF, suggesting bioactive materials with high capability of tissue integration as well as polymeric physical properties.

  Info
Periodical
Key Engineering Materials (Volumes 309-311)
Main Theme
Edited by
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo
Pages
549-552
DOI
10.4028/www.scientific.net/KEM.309-311.549
Citation
M.-Y. Koh, H. M. Kim, H.K. Lee, K. Y. Lee, Y.H. Lee, J. Kwak, "In Vitro Bioactivity of Bi-Structured Nano-Hybrids in the CaO-SiO2-PTMO System", Key Engineering Materials, Vols. 309-311, pp. 549-552, 2006
Online since
May 2006
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: 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: Y.H. Lee, Hyun Min Kim, Kwon Yong Lee, Jae Hoon Lee, S.H. Ahn, M.-Y. Koh
Abstract:A ceramic-polymer nano-hybrid, in which the bioactive silicate surface is nano-hybridized with flexible silicone bulk, was synthesized in the...
753
Authors: R. Sindut, Katarzyna Cholewa-Kowalska, Maria Łączka
Abstract:Bioglasses and bioactive glass-ceramics have found increasingly wide application in medicine and dentistry. Using sol-gel method, is...
103
Authors: Gisela M. Luz, João F. Mano
Abstract:In this study a new P-free system applied to the production of Bioactive Glass Nanoparticles (BG-NPs) is proposed, in order to evaluate the...
31
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