Figure 3: Functionalization of the probes.
From: Partially reduced graphene oxide based FRET on fiber-optic interferometer for biochemical detection
(a–c), shows the functionalized Type 1, Type 2, Type 3, schematically. (d–f), fluorescence quenched by the prGO film of the Type 1 (red curve, d), Type 2 (yellow curve, e) and Type 3 (green curve, f). Before quenched by the prGO, the fluorescence of the Rh6G is shown as grey curves. (g–i), show the optical spectra of the Type 1 with dip location of 1538.2 nm (red curve, g), Type 2 with dip location of 1563.7 nm (yellow curve, h), Type 3 with dip location of 1561.1 nm (green curve, i), respectively. Here the grey curves show the spectra before adding Rh6G.
