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. Author manuscript; available in PMC: 2018 Feb 12.
Published in final edited form as: Chem Rev. 2015 Feb 18;115(7):2483–2531. doi: 10.1021/cr500537t

Figure 22.

Figure 22

Multiplexed fluorescence resonance energy transfer aptasensor. (A) Schematic illustration of the multiplexed upconversion fluorescence resonance energy transfer between aptamers-UCNPs and GO for FB1 and OTA detection. (B) Upconversion fluorescence spectra of the multiplexed UCNPs-GO FRET aptasensor in the simultaneous presence of 0–100 ng mL−1 FB1 and OTA. (C) A standard curve of the fluorescence intensity versus OTA concentration and (D) FB1 concentrations measured by this developed method. Reprinted with permission from ref 156c. Copyright 2012 American Chemical Society.