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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

Stern-Volmer plots for the quenching of HSA emission by the PPs. (■) PPIX; (●) Zn(II)PPIX; (▲) Fe(III)PPIX(Cl); (♦) Mg(II)PPIX; () Mn(III)PPIX; () Sn(IV)PPIX. HAS concentration was ~ 5.5 μM; λ_ex = 294 nm.

Inline graphic — Stern-Volmer plots for the quenching of HSA emission by the PPs. (■) PPIX; (●) Zn(II)PPIX; (▲) Fe(III)PPIX(Cl); (♦) Mg(II)PPIX; () Mn(III)PPIX; () Sn(IV)PPIX. HAS concentration was ~ 5.5 μM; λ_ex = 294 nm.