Paper Title:
Polymeric Calcium Phosphate Cements Incorporated with Poly-γ-Glutamic Acid
  Abstract

Polymeric calcium phosphate cements (PCPC) derived from biodegradable poly-g-glutamic acid (g-PGA) were prepared in an attempt to improve the mechanical strength of calcium phosphate cement (CPC). The characteristics of the PCPCs were compared to those of cement incorporated with citric acid. The diametral tensile and compressive strengths of the CPC incorporated with g-PGA were significantly higher than that of cement incorporated with citric acid at equivalent concentrations (p<0.05). The maximal diametral tensile and compressive strengths of the CPC incubated for 1 week in physiological saline solution were approximately 18.0 and 50.0 MPa, respectively. However, the initial setting time of the PCPC was much slower than that of CPC incorporated with citric acid. The formation of ionic complexes between calcium ions and g-PGA was observed using FT-IR spectroscopy. Hydroxyapatite (HA) formation was retarded by g-PGA incorporation according to scanning electronic microscopy (SEM) and powder X-ray diffraction (XRD) observations.

  Info
Periodical
Key Engineering Materials (Volumes 396-398)
Main Theme
Edited by
Marcelo Prado and Cecília Zavaglia
Pages
265-268
DOI
10.4028/www.scientific.net/KEM.396-398.265
Citation
S. S. Kim, S. J. Lee, Y. S. Kim, K. Y. Lee, "Polymeric Calcium Phosphate Cements Incorporated with Poly-γ-Glutamic Acid", Key Engineering Materials, Vols. 396-398, pp. 265-268, 2009
Online since
October 2008
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: Wei Min Gao, Cheng Xiang Ruan, Yun Fa Chen
Abstract:Hydroxyapatite nanoparticles were synthesized in the presence of two kinds of acidic amino acids in order to investigate the effects of...
2096
Authors: Yue Qiang, Li Li, Ze Ping He
Abstract:For the purpose of studying the resistance of steel fiber reinforced concrete against the corrosion of different acid, test compressive...
224
Authors: Hui Zhen Jin, Qiang Li, Xian Yu Jin, Ye Tian, Nan Guo Jin
Abstract:Boric acid (H3BO3) is often used for cooling the heat in nuclear power plant. Though the drastic measures have been...
252
Authors: Alailson Domingos dos Santos, Michela Melissa Duarte Seixas Sostena, José Carlos Barbosa, Paulo Henrique dos Santos, Maria Giovanna Gandolfi, Carlo Prati, João Carlos Silos Moraes
Chapter 9: Materials and Technologies in Biomedical Engineering
Abstract:The aim of this work was to evaluate the setting time, adhesion, sealing ability, and ion release of a novel endodontic sealer (CEOE) and of...
957