Physical Aspects of QCM-Measurements -- Interface Circuits for QCM Sensors -- Interface Circuits for QCM Sensors -- Studies of Viscoelasticity with the QCM -- Studies of Viscoelasticity with the QCM -- Probing the Solid/Liquid Interface with the Quartz Crystal Microbalance -- Probing the Solid/Liquid Interface with the Quartz Crystal Microbalance -- Studies of Contact Mechanics with the QCM -- Studies of Contact Mechanics with the QCM -- Chemical and Biological Applications of the QCM -- Imprinted Polymers in Chemical Recognition for Mass-Sensitive Devices -- Imprinted Polymers in Chemical Recognition for Mass-Sensitive Devices -- Analytical Applicationsof QCM-based Nucleic Acid Biosensors -- Analytical Applications of QCM-based Nucleic Acid Biosensors -- Piezoelectric Immunosensors -- Piezoelectric Immunosensors -- Specific Adsorption of Annexin A1 on Solid Supported Membranes: A Model Study -- Specific Adsorption of Annexin A1 on Solid Supported Membranes: A Model Study -- The Quartz Crystal Microbalance in Cell Biology: Basics and Applications -- The Quartz Crystal Microbalance in Cell Biology: Basics and Applications -- Applications Based on Advanced QCM-Techniques -- Enzyme Reactions on a 27 MHz Quartz Crystal Microbalance -- Enzyme Reactions on a 27 MHz Quartz Crystal Microbalance -- The Quartz Crystal Microbalance and the Electrochemical QCM: Applications to Studies of Thin Polymer Films, Electron Transfer Systems, Biological Macromolecules, Biosensors, and Cells -- The Quartz Crystal Microbalance and the Electrochemical QCM: Applications to Studies of Thin Polymer Films, Electron Transfer Systems, Biological Macromolecules, Biosensors, and Cells -- The QCM-D Technique for Probing Biomacromolecular Recognition Reactions -- The QCM-D Technique for Probing Biomacromolecular Recognition Reactions -- Resonant Acoustic Profiling (RAP™) and Rupture Event Scanning (REVS™) -- Resonant Acoustic Profiling (RAP™) and Rupture Event Scanning (REVS™).