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. 2016 Nov 17;21(11):1519. doi: 10.3390/molecules21111519

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© 2016 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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The increase of PpIX (I, 5 × 10⁻⁵ M) fluorescence excited at λ_ex = 280 nm (A) and 295 nm (B) in the presence of HSA (II, 2 × 10⁻⁷ M; III, 3 × 10⁻⁷ M; IV, 4 × 10⁻⁷ M; V, 5 × 10⁻⁷ M; VI, 7.5 × 10⁻⁷ M; VII, 1 × 10⁻⁶ M; VIII, 1.25 × 10⁻⁶ M; IX, 2 × 10⁻⁶ M; X, 2.5 × 10⁻⁶ M; XI, 4 × 10⁻⁶ M; XII, 5 × 10⁻⁶ M; XIII, 9 × 10⁻⁶ M). Quenching of HSA (I, 7.5 × 10⁻⁷ M) fluorescence excited at λ_ex = 280 nm (C) and 295 nm (D) in the presence of PpIX (II, 1 × 10⁻⁵ M; III, 3 × 10⁻⁵ M; IV, 5 × 10⁻⁵ M; V, 9 × 10⁻⁵ M; VI, 1 × 10⁻⁴ M; VII, 1.5 × 10⁻⁴ M; VIII, 3 × 10⁻⁴ M).

The increase of PpIX (I, 5 × 10⁻⁵ M) fluorescence excited at λ_ex = 280 nm (A) and 295 nm (B) in the presence of HSA (II, 2 × 10⁻⁷ M; III, 3 × 10⁻⁷ M; IV, 4 × 10⁻⁷ M; V, 5 × 10⁻⁷ M; VI, 7.5 × 10⁻⁷ M; VII, 1 × 10⁻⁶ M; VIII, 1.25 × 10⁻⁶ M; IX, 2 × 10⁻⁶ M; X, 2.5 × 10⁻⁶ M; XI, 4 × 10⁻⁶ M; XII, 5 × 10⁻⁶ M; XIII, 9 × 10⁻⁶ M). Quenching of HSA (I, 7.5 × 10⁻⁷ M) fluorescence excited at λ_ex = 280 nm (C) and 295 nm (D) in the presence of PpIX (II, 1 × 10⁻⁵ M; III, 3 × 10⁻⁵ M; IV, 5 × 10⁻⁵ M; V, 9 × 10⁻⁵ M; VI, 1 × 10⁻⁴ M; VII, 1.5 × 10⁻⁴ M; VIII, 3 × 10⁻⁴ M).