Underwater captive bubble technique on curved surfaces of blended polydimethylsiloxanes

The surface properties of biomaterials often determine their hemocompatibility. The air-water contact angle 0AW, an important surface property, is directly related to the surface free energy of a biomaterial. Contact angle measurement is considered a

valuable technique to characterize biomaterial surfaces [1] because 0Aw is sensitive to the outermost 3-20 Å of a surface and its chemistry.