Fig. 1

UV-Vis absorbance spectra of (A) AuCIT and AuCIT-BSA mixture (B) AuPEG and AuPEG-BSA mixture obtained from UV spectrophotometer (all spectra were normalized to the maximum absorbance peak intensity of AuCIT at 525 nm).

UV-Vis absorbance spectra of (A) AuCIT and AuCIT-BSA mixture (B) AuPEG and AuPEG-BSA mixture obtained from UV spectrophotometer (all spectra were normalized to the maximum absorbance peak intensity of AuCIT at 525 nm).