Biodiagnostics with multiplex dyes

A new bioanalytical concept that uses the characteristic fluorescence lifetimes of new multiplex dyes as an identification parameter is presented. Several dyes can be distinguished at the same wavelength by recognition of the fluorescence lifetimes. It is shown that the identification can be achieved in a capillary gel electrophoresis system in a few milliseconds with a misclassification rate of 10-4. As an example the simultaneous detection of two antibodies at one wavelength is presented.