Table 3. Fractions of the secondary structure of BSA in the absence and presence of TGA-CdTe QDs and MPA-CdTe QDs.

Systems	Fraction of secondary structures
	α-Helix (%)	β-sheet (%)	Turn (%)	Random (%)
BSA	51.5	7.5	15.7	26.2
BSA + TGA-CdTe QDs	43.9	12.4	17.7	27.2
BSA + MPA-CdTe QDs	43.0	12.1	17.9	27.3