Figure 6: UV–vis absorption spectra of BSA in the presence of Tm- Por at pH=7.40, 297K. A: c(BSA) = 5μM only, A-G:c(Tm-Por)/(5μM): 0,0.2,0.4,0.6,0.8,1.0,1.5. Inset: The relationship of absorbance spectra maximum wavelength at about 280nm and the molar ratio between Tm-Por and BSA.