massasensoriset
Massasensoriset, or mass sensors, are devices that detect changes in mass by transducing them into a measurable signal. Most rely on a gravimetric principle: added mass changes the dynamics of a resonant element, producing a shift in resonance frequency or in optical signals. The term covers several technologies, including quartz crystal microbalance (QCM) sensors, MEMS cantilever resonators, and optical resonators.
Quartz crystal microbalance sensors measure mass from the frequency change of a piezoelectric crystal; QCM-D devices
Applications include label-free biosensing (proteins, nucleic acids, cells), chemical sensing (gases and vapors), and environmental monitoring,
Key performance factors are sensitivity, limit of detection, dynamic range, response time, and surface functionalization for
Future developments focus on sensor arrays for multiplexing, integration with microfluidics and electronics, and data-driven analysis