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Title: Polymeric piezoelectric actuator substrate for osteoblast mechanical stimulation
Authors: Frias, Clara
Reis, Joana
Capela silva, Fernando
Potes, José
Torres Marques, António
Simões, José
Keywords: Polymeric piezoelectric, Actuator, Osteoblast cells, Mechanical stimulation
Issue Date: 19-Apr-2010
Publisher: Elesevier
Abstract: Abstract 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.
ISSN: 0021-9290
Type: article
Appears in Collections:MVT - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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