Fig. 7

CD spectra for interaction of FIB, PLG and PTM with CdTe QDs and CdTe/ZnS QDs (A), and the ratios of α-helix, β-sheets, β-turns and random coil in the protein secondary structure in the presence of different concentrations of QDs (B). The concentrations of FIB, PLG and PTM were fixed at 3.0 μmol/L, 2.7 μmol/L and 3.7 μmol/L, respectively