  Applications of Fluorescence Resonance Energy Transfer (FRET) in biology have
expanded tremendously in the last 25 years. This technique has become a staple
technique in many biological and biophysical fields. FRET based chemical
sensors and biosensors can play an important role as biomarkers. Development of
new and effective FRET based assay for biological application is an emerging
area of research needing multidisciplinary approach from biologists, chemists
and physicists. Here we have discussed the use of FRET technique as biomarker.
