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. 2018 Dec 19;9:3178. doi: 10.3389/fmicb.2018.03178

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Copyright © 2018 Piacenza, Presentato, Ambrosi, Speghini, Turner, Vallini and Lampis.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Photoluminescence emission spectra of the unlabeled chemically and biogenically synthesized SeNS at exitation wavelengths of 380 (A), 485 (B), and 532 nm (C). The dashed black line indicates the water Raman peak.