wetability of biocompatible polymers can be improved by plasma surface modification. the purpose of this study was to surface modify an experimental poly (dimethylsiloxane) rubber (pdms) material in order to improve its wetability and biocompatibility. surface properties of the pdms were characterized using contact angles measurement for wetability analysis. samples of experimental silicone rub...

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The surfaces of fresh and tarnished (through exposure to the atmosphere) bornite have been studied by measurement of reflectance and quantitative colour parameters in the visible region, X-ray photoelectron and Auger electron spectroscopy, and conversion electron M6ssbauer spectroscopy. The results of these studies, in combination with those of previous workers, indicate that a surface coating ...

Gene Simmons, 1 David 14. StrangvJay, 2 L. Bannister,3 D. Cubley/+ G. LaTorraca,l J. D. Redman, 5 J. Rossiter, 6 and R. 14atts6 Abstract The surface electrical properties experiment is presently planned for Apollo 17. It uses two orthogonal, electric dipole antennas laid on the surface, each 70 m long (tip-to-tip), to transmit frequencies of l, 2.1, 4, 8. l, 16 and 32. 1 mhz. The signa 1 s ure ...

The role of contact pressure on skin friction has been documented in multiple experimental studies. Skin friction significantly raises in the low-pressure regime as load increases while, after a critical pressure value is reached, the coefficient of friction of skin against an external surface becomes mostly insensitive to contact pressure. However, up to now, no study has elucidated the qualit...