The present invention features "promoter-sequestered" oligonucleosides and the use of such oligonucleosides to achieve "target-triggered" amplification. A promoter-sequestered oligonucleoside contains a contiguous nucleic acid sequence which forms a stem-loop structure in the absence of a target sequence....http://www.google.de/patents/US6025133?utm_source=gb-gplus-sharePatent US6025133 - Promoter-sequestered oligonucleoside and method of use