Process / pipelineSurface characterization
Contact Angle Goniometry
Contact angle goniometry is a technique for measuring the wettability of a solid surface by determining the angle at which a liquid droplet meets the surface. Rooted in Thomas Young's thermodynamic analysis from 1805, the method uses optical measurement of droplet profile to quantify surface energy and hydrophilicity. It is indispensable in biomaterials characterization, helping researchers assess whether a scaffold or implant surface will promote or inhibit cell adhesion, protein adsorption, and biointegration.
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Sources
- Young, T. (1805). An essay on the cohesion of fluids. Philosophical Transactions of the Royal Society, 95, 65-87. link ↗
- Owens, D. K., & Wendt, R. C. (1969). Estimation of surface free energy of polymers. Journal of Applied Polymer Science, 13(8), 1741-1747. DOI: 10.1002/app.1969.070130815 ↗
- Good, R. J. (1979). Surface free energy of solids and liquids: thermodynamics, measurement, and applicability. Journal of Colloid and Interface Science, 52(2), 308-313. DOI: 10.1016/0021-9797(75)90200-9 ↗