Polymeric piezoelectric actuator substrate for osteoblast mechanical stimulation

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Frias, C (Author) Other; Reis, J (Author) Other; Capela e Silva, FCE (Author) Other; Potes, J (Author) Other; Simoes, J (Author) Other; António Torres Marques (Author) FEUP

Journal

Title: Journal of Biomechanics

Vol. 43

Pages: 1061-1066

ISSN: 0021-9290

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 21 Citations

Scopus - 22 Citations

Other information

Authenticus ID: P-003-7EV

DOI: 10.1016/j.jbiomech.2009.12.010

Abstract (EN): Bone mass distribution and structure are dependent on mechanical stress and adaptive response at cellular and tissue levels. Mechanical stimulation of bone induces new bone formation in vivo and increases the metabolic activity and gene expression of osteoblasts in culture. A wide variety of devices have been tested for mechanical stimulation of cells and tissues in vitro. The aim of this work was to experimentally validate the possibility to use piezoelectric materials as a mean of mechanical stimulation of bone cells, by converse piezoelectric effect. To estimate the magnitude and the distribution of strain, finite numerical models were applied and the results were complemented with the optical tests (Electronic Speckle Pattern Interferometric Process). In this work, osteoblasts were grown on the surface of a piezoelectric material, both in static and dynamic conditions at low frequencies, and total protein, cell viability and nitric oxide measurement comparisons are presented.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6