PHOTOCHROMIC PROBES

摘要

The present invention provides photochromic compounds and derivatives thereof as shown in claim 1 and methods of use of these compounds and derivatives. The present invention also provides photochromic optical probes capable of undergoing light directed reversible transition between a first state and a second state. The invention also teaches methods of determining and controlling reversible optical biomolecular interactions, for example binding of calcium in a subject.