Biomedical materials, devices and implants need to be characterized for the purposes of new material and product development, meeting product specifications and quality requirements, or for the purposes of failure analysis and biocompatibility. This presentation will focus on surface and interface characterization of biomedical materials using contact angle based techniques. An overview of the techniques — including important concepts and operating principles — will be given first. Experimental results obtained using contact angle meters will be presented to show the usefulness of the techniques for determination of surface wettability, hydrophobicity and hydrophilicity of materials, for surface energy analysis of coating and substrate in order to understand and control interfacial adhesion, and for detection of surface contamination and cleanness.
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