Optical chemical sensors based on supramolecular chemistry

Optical chemical sensors possess many features that make them suitable for various environments. In order to construct this kind of sensors, the key technology is to develop new types of recognition chemistry with optical property changes. The development of supramolecular chemistry has provided such a technology. In this paper, three kinds of supramolecular recognition systems have been discussed according to the relationship between receptor and chromophore and used to construct some new optical chemical sensors.