手法を比較

	接触角ゴニオメトリー	膨潤と分解
分野	生体材料学	生体材料学
系統	Process / pipeline	Process / pipeline
提唱年	1805	1960
提唱者	Thomas Young	Wichterle and Lim
種類	Wettability measurement	Kinetic assay
原典	Young, T. (1805). An essay on the cohesion of fluids. Philosophical Transactions of the Royal Society, 95, 65-87.	Wichterle, O., & Lim, D. (1960). Hydrophilic gels for biological use. Nature, 185(4706), 117-118.
別名	sessile drop method, contact angle measurement, wettability analysis	hydrogel swelling, polymer degradation, mass loss assay
関連	3	4
概要	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.	The swelling and degradation assay measures how biomaterial scaffolds absorb water (swelling) and lose mass over time due to degradation. Developed by Wichterle and Lim in 1960 for hydrogels, the assay is fundamental for characterizing hydrogels, synthetic polymers, and composite scaffolds intended for tissue engineering. The assay provides quantitative data on swelling kinetics (equilibrium water content, swelling ratio), degradation kinetics (mass loss rate, half-life), and mechanisms of degradation (chain scission, enzymatic breakdown).