Topics focus on this area are very practical and most of them done by industry itself through a surface property study. My company can provide the precise instruments for doing contact angle measurement for obtaining surface tension and surface energy on the solid surfaces using different ways to separate polar or dispersed contributions microscopically. If you need to know more about what we can help, please feel free to call me at 718-793-1500 or e-mail me. Spencer Wu Technical Director Future Digital Scientific