Figure 1. Standard molecular beacons.

Figure 1

Standard molecular beacons. A fluorophore (F) and a quencher (Q) are covalently linked to the two ends of the hairpin-shaped DNA probe. The formation of loop-target duplex structure causes the separation of F from Q and the generation of a fluorescence signal. This figure is adapted from ref. 39.

From: Fluorescence-Signaling Nucleic Acid-Based Sensors

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