Molecular Sensor
Formal
A molecular sensor or chemosensor is a molecule that interacts with an analyte to produce a detectable change. Molecular sensors combine molecular recognition with some form of the reporter, so the presence of the guest can be observed.
Practical
Molecular sensors combine molecular recognition with some form of reporter so the presence of the guest can be observed. The term supramolecular analytical chemistry has recently been coined to describe the application of molecular sensors to analytical chemistry.