Polymeric piezoelectric actuator substrate for osteoblast mechanical stimulation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

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

Revista

Título: Journal of Biomechanics

Vol. 43

Páginas: 1061-1066

ISSN: 0021-9290

Editora: Elsevier

Indexação

ISI Web of Knowledge - 21 Citações

Scopus - 22 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6