Fluorescent Sensor and Methods

Abstract

Binding an analyte can cause a change in fluorescence emission of a sensor. The change in fluorescence can be related to the amount of analyte present. The sensor can include a semiconductor nanocrystal linked to a fluorescent moiety. Upon excitation, the fluorescent moiety can transfer energy to the semiconductor nanocrystal, or vice versa.

1 . A composition comprising:
 a first fluorescent moiety;   a second fluorescent moiety associated with the first fluorescent moiety;   wherein the first fluorescent moiety is capable of transferring energy to the second fluorescent moiety when excited, and the first fluorescent moiety or the second fluorescent moiety includes a semiconductor nanocrystal.   
     
     
         2 .- 36 . (canceled)