Fig. 2
The fluorescence quenching studies of proteins in the presence of CDS-PMo12@PVPx(x = 0,1) NPs. a The fluorescence quenching experiment and corresponding calculation equation. b, c The fluorescence emission spectra of Cyt-C in the absence and presence of CDS-PMo12@PVP0 NPs at 298 K and 310 K, respectively. The concentration of Cyt-C is fixed as 5 μM; the concentrations of CDS-PMo12@PVP0 NPs is changed from 0 to 15 μM. d Stern–Volmer plot of Cyt-C intrinsic fluorescence quenching by CDS-PMo12@PVPx(x = 0,1) NPs. e The modified Stern–Volmer plot of Cyt-C intrinsic fluorescence quenching by CDS-PMo12@PVPx(x = 0,1) NPs. f The double logarithmic plot of Cyt-C intrinsic fluorescence quenching by CDS-PMo12@PVPx(x = 0,1) NPs at 298 K and 310 K, respectively