single molecule sensors

Sensor systems exhibit extraordinary sensitivity for detecting physical, chemical, and biological entities at the micro/nanoscale. The detection and analysis of molecules on miniature devices that have many possible applications in health, environment, analysis, and security is particularly exciting. A new class of label-free micro and nanosensors is starting to emerge allowing us to observe dynamic processes at the single molecule level directly, with unprecedented spatial- and temporal resolution and without significantly affecting the natural and functional movements of the molecules.