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Nano Convergence
Fig. 2 | Nano Convergence

Fig. 2

From: Ultrasensitive and real-time optical detection of cellular oxidative stress using graphene-covered tunable plasmonic interfaces

Fig. 2

Cyt c-mediated PRET signals according to scattering profiles of nanoprobes and optical tuning strategy of the nanoprobes with graphene layers. a Expected features of the Cyt c-mediated PRET signal according to scattering profiles of nanoprobes in terms of λmax, FWHM, and intensity. The cases where two unique quenching dips for Cyt c were clearly observed are highlighted with yellow boxes. b The schematic diagram for the relationship of the electron movement through the NP-graphene interface with the change in scattering property according to the covered graphene layers, (i) SNP (ii) GNP. c, d Scattering spectra numerically calculated for the graphene-covered SNP (c) and GNP (d) with increasing number of graphene layers. In Gn-SNP and Gn-GNP, n indicates the number of graphene layers on the NPs. e, f Plots for the changes in scattering properties of SNP (e) and GNP (f) with increasing number of graphene layers, (i) λmax, (ii) FWHM, and (iii) scattering cross-section (σsc)

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