Lelah M D, Grasel T G, Pierce J A, Cooper S L
J Biomed Mater Res. 1985 Nov-Dec;19(9):1011-5. doi: 10.1002/jbm.820190913.
Circular tubings are used extensively in biomedical implants and devices. It is desirable to determine contact angles on the inner or outer surfaces of such tubing in its final fabricated form. In this study, a technique for the measurement of contact angles on tubing surfaces in an aqueous environment is reported. This has particular applications to biomaterials research, where polymer tubings contact the biologic environment. In this technique, air or octane captive bubble dimensions can be measured, and an underwater contact angle calculated from these dimensions. The validity of the technique was experimentally confirmed using Solution Grade Biomer and NIH standard polyethylene surfaces.
圆形管材在生物医学植入物和器械中被广泛使用。期望确定这种管材最终制成形式的内表面或外表面上的接触角。在本研究中，报告了一种在水性环境中测量管材表面接触角的技术。这在生物材料研究中具有特殊应用，其中聚合物管材与生物环境接触。在该技术中，可以测量空气或辛烷捕获气泡的尺寸，并根据这些尺寸计算水下接触角。使用溶液级生物聚合物和美国国立卫生研究院标准聚乙烯表面通过实验证实了该技术的有效性。
