Fluorescence Ratiometric Properties Induced by Nanoparticle Plasmonics and Nanoscale Dye Dynamics
Figure 3
MC540 fluorescence at 511 nm excitation for an ammonium (concentrations 0, 10, 200, 500, 1000, 1500, and 2000 μM) sensor without (a) and with (b) nanoparticles. (c) Calibration curves for sensors without (□) and with nanoparticles (◆). (d) Acceptor absorbance, donor fluorescence, and the FRET overlap peaking at 572.5 nm.
