Chapter 82. Electrovector Ceramics for Biomedical Use: Manipulation of Bone–Like Crystal Growth in SBF

  1. Hau-Tay Lin and
  2. Mrityunjay Singh
  1. Kimihiro Yamashita,
  2. Satoshi Nakamura and
  3. Takayuki Kobayashi

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294758.ch82

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

How to Cite

Yamashita, K., Nakamura, S. and Kobayashi, T. (2002) Electrovector Ceramics for Biomedical Use: Manipulation of Bone–Like Crystal Growth in SBF, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294758.ch82

Author Information

  1. Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University 2–3–10 Kanda–Surugadai, Chiyoda, Tokyo 101–0062, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375792

Online ISBN: 9780470294758

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Keywords:

  • electrovector ceramics;
  • bone-like crystal growth;
  • hydroxyapatite ceramics;
  • solidification;
  • electrovectorial effect

Summary

Stored charges of electrically polarized hydroxyapatite (HA) ceramics were found to enhance the solidification, which is actually the bone-like crystal growth on HA surfaces, from a simulated body fluid (SBF). The enhancement was observed on the negatively charged surface, while the crystal growth was decelerated on the positively charged surface. These effects of surface charges were named as “electrovectorial effects” and a material which has the effect as an “electrovector material”.

In this paper, the definitions of electrovectorial effect and electrovector material is firstly introduced, then the effectiveness is demonstrated in the solilidification phenomena in a SBF, which are considered to be so-called in vitro bioactivity.