In one aspect, the invention provides fluorescent probes and assays. The probes include a fluorophore-quencher pair that undergoes a switch from dark to fluorescent in response to a reaction of the quencher. The switch of the probe from dark to fluorescent is typically mediated by an enzyme that acts...http://www.google.co.uk/patents/US7635598?utm_source=gb-gplus-sharePatent US7635598 - Inducible fluorescence assay
