2025 Volume 25 Issue 3 Pages 87-94
Characterizing the adsorption phenomenon that occurs at solid/liquid interfaces is an important subject not only in academia but also in industry. One of the instrumental analysis methods that can approach this subject is the quartz crystal microbalance with dissipation monitoring (QCM-D) technique. The QCM-D technique can estimate not only the mass of materials adsorbed at solid/liquid interfaces but also the viscoelasticity of the adsorbed film with high sensitivity and excellent time-resolution. Furthermore, the QCM-D technique can be used in a wide range of application fields, owing to its wide variety of materials coated on sensor surfaces and its capability of evaluating colored or turbid liquid samples. In this article, the basic principle of the QCM-D technique is explained and then some recent QCM-D results relevant to the fields of cleaning and tribology are reviewed.