Study on the Correlation between Surface Properties and Tribological Performance of S-DLC Films

Moolsradoo, Nutthanun; Watanabe, Shuichi

doi:10.4139/sfj.63.53

Cited by 1 publication

(1 citation statement)

References 27 publications

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“…Moreover, our observations are in agreement with previous findings indicating that the increase in the roughness of hydrophobic surface enhances the WCA of the materials (Ghinea et al, 2011;Yoshimitsu, Nakajima, Watanabe, & Hashimoto, 2002). On the other hand, the lack of correlation between surface elasticity on one side and surface roughness and wettability on the other side is in accordance with many other data demonstrating the lack of correlation between micromechanical characteristic and surface properties (Moolsradoo & Watanabe, 2012;Munchow, Correa, Ogliari, Piva, & Zanchi, 2012).…”

Section: Discussionsupporting

confidence: 93%

Polydimethylsiloxane materials with supraphysiological elasticity enable differentiation of myogenic cells

Świerczek-Lasek

Keremidarska-Markova

Hristova-Panusheva

et al. 2019

J Biomedical Materials Res

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Myogenic differentiation during muscle regeneration is guided by various physical and biochemical factors. Recently, substratum elasticity has gained attention as a physical signal that influences both cell differentiation and tissue regeneration. In this work, we investigated the influence of substratum elasticity on proliferation and differentiation of myogenic cells, mouse myoblasts of the C2C12 cell line and mouse primary myoblasts derived from satellite cells—muscle stem cells playing key role in muscle regeneration. Materials with different elastic moduli within the MPa scale based on polydimethylsiloxane (PDMS) were used as cell substratum and characterized for surface roughness, wettability, and micromechanical characteristics. We found that surface properties of PDMS substrates are alter nonlinearly with the increase of the material's elastic modulus. Using this system we provide an evidence that materials with elastic modulus higher than that of physiological skeletal muscle tissue do not perturb myogenic differentiation of both types of myoblasts; thus, can be used as biomaterials for muscle tissue engineering. PDMS materials with elasticity within the range of 2.5–4 MPa may transiently limit the proliferation of myoblasts, but not the efficiency of their differentiation. Direct correlation between substratum elasticity and myogenic differentiation efficiency was not observed but the other surface properties of the PDMS materials such as nanoroughness and wettability were also diverse.

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