Uwe H. F. Bunz and Vincent M. Rotello Gold Nanoparticle–Fluorophore Complexes: Sensitive and Discerning “Noses” for Biosystems Sensing Angewandte Chemie International Edition 49
Disruption desired: Different monolayer-protected nanoparticle–fluorophore constructs are used in indicator-displacement assays to spy on proteins, bacteria, cells, and ions (see picture). The modus operandi involves disruption of the preformed quencher–fluorophore complexes, leading to partial and analyte-dependent fluorescence turn-on. Small libraries of nanoparticle–fluorophore complexes get the sensing job for different biological analytes done.
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