Journal of Materials Science: Materials in Medicine

, Volume 24, Issue 7, pp 1627–1637

Premixed injectable calcium phosphate cement with excellent suspension stability

Article

DOI: 10.1007/s10856-013-4920-7

Cite this article as:
Chen, F., Mao, Y. & Liu, C. J Mater Sci: Mater Med (2013) 24: 1627. doi:10.1007/s10856-013-4920-7

Abstract

Premixed injectable calcium phosphate cement (p-ICPC) pastes have advantages over aqueous injectable calcium phosphate cement (a-ICPC) because p-ICPC remain stable during storage and harden only after placement into the defect. This paper focused on the suspension stability of p-ICPC paste by using fumed silica as a stabilizing agent and propylene glycol (PEG) as a continuous phase. Multiple light scanning techniques were first applied to evaluate the suspension stability. The results indicated that fumed silica effectively enhanced the suspension stability of p-ICPC pastes. The stabilizing effect of fumed silica results from the network structure formed in PEG because of its thixotropy. The p-ICPC could be eventually hydrated to form hydroxyapatite under aqueous circumstances by the unique replacement between water and PEG. p-ICPC (1) not only possesses proper thixotropy and compressive strength but has good injectability as well. p-ICPC (1) was cytocompatible and had no adverse effect on the attachment and proliferation of MG-63 cells in vitro. These observations may have applicability to the development of other nonaqueous injectable biomaterials for non-immediate filling and long-term storage.

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.The State Key Laboratory of Bioreactor EngineeringEast China University of Science and TechnologyShanghaiPeople’s Republic of China
  2. 2.Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and EngineeringEast China University of Science and TechnologyShanghaiPeople’s Republic of China
  3. 3.Engineering Research Center for Biomedical Materials of Ministry of EducationEast China University of Science and TechnologyShanghaiPeople’s Republic of China