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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: Int J Biol Macromol. 2019 May 10;134:445–457. doi: 10.1016/j.ijbiomac.2019.05.060

Figure 3.

Figure 3

Emission spectra of HSA (λex294nm) as a function of the PP (A) Fe(III)PPIX(Cl) [0–7.8 μM]; (B) Mg(II)PPIX [0 – 4.8 μM]; (C) Mn(III)PPIX [0 – 4.7 μM]; (D) Sn(IV)PPIX [0 – 1.3 μM]. The intensity of the spectra decrease with increasing the concentration of the PPs and is accompanied by a hypsochromic shift of the emission maximum.