Nanosensor Binding Kinetics Simulator

Nanosensors detect a target molecule not by "seeing" it but by measuring what its binding does to a functionalized surface — a shift in resonance frequency, conductance or optical signal proportional to how many receptor sites are occupied. This simulator visualizes the underlying binding-kinetics process directly: target molecules diffuse through solution above a nanosensor surface, occasionally colliding with an empty receptor and sticking (association), while already-bound molecules occasionally let go (dissociation). The balance between those two rates — captured by the Langmuir isotherm — sets the sensor's real-time signal and its final equilibrium response. Adjust concentration, association/dissociation rates and receptor density, then switch from sample injection to buffer wash to trace out a complete sensorgram, the same association–plateau–dissociation curve read off real SPR and nanowire biosensors.