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. 2019 Jun 12;20(12):2864. doi: 10.3390/ijms20122864

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© 2019 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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Fluorescence emission spectra of bovine serum albumin (BSA) with different concentrations of Cu²⁺-surfactin (a), Zn²⁺-surfactin (b), Mg²⁺-surfactin (c), Ca²⁺-surfactin (d) and surfactin (e). Conditions: BSA: 15 µM; metal-lipopeptide (a–g): 0, 10, 20, 50, 70, 100 and 120 µM; pH = 7.4; T =25 °C.

Fluorescence emission spectra of bovine serum albumin (BSA) with different concentrations of Cu²⁺-surfactin (a), Zn²⁺-surfactin (b), Mg²⁺-surfactin (c), Ca²⁺-surfactin (d) and surfactin (e). Conditions: BSA: 15 µM; metal-lipopeptide (a–g): 0, 10, 20, 50, 70, 100 and 120 µM; pH = 7.4; T =25 °C.