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Cobalt and Titanium nanoparticles influence on human osteoblast mitochondrial activity and biophysical properties of their cytoskeleton

Stefano Perni, Lirong Yang, Emily Preedy Orcid Logo, Polina Prokopovich

Journal of Colloid and Interface Science, Volume: 531, Pages: 410 - 420

Swansea University Author: Emily Preedy Orcid Logo

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Abstract

We investigated the biophysical effects (cell elasticity and spring constant) caused on Saos-2 human osteoblast-like cells by nanosized metal (Co and Ti) wear debris, as well as the adhesive characteristics of cells after exposure to the metal nanoparticles. Cell mitochondrial activity was investiga...

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Published in: Journal of Colloid and Interface Science
ISSN: 0021-9797
Published: 2018
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa51202
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Abstract: We investigated the biophysical effects (cell elasticity and spring constant) caused on Saos-2 human osteoblast-like cells by nanosized metal (Co and Ti) wear debris, as well as the adhesive characteristics of cells after exposure to the metal nanoparticles. Cell mitochondrial activity was investigated using the MTT assays; along with LDH assay, metal uptake, cell apoptosis and mineralisation output (alizarin red assay) of the cells.Osteoblasts mitochondrial activity was not affected by Ti nanoparticles at concentrations up to 1 mg/ml and by Cobalt nanoparticles at concentrations < 0.5 mg/ml; however elasticity and spring constant were significantly modified by the exposure to nanoparticles of these metals in agreement with the alteration of cell conformation (shape), as result of the exposure to simulated wear debris, demonstrated by fluorescence images after actin staining.
Keywords: Osteoblast, Cobalt, Titanium, Nanoparticles, Wear debris
College: Faculty of Science and Engineering
Start Page: 410
End Page: 420