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. 2019 Feb 14;7:27. doi: 10.3389/fchem.2019.00027

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Copyright © 2019 Athukorale, Leng, Xu, Perera, Fitzkee and Zhang.

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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Comparison of the SERS spectra obtained for (A) BuT and (B) BDMT with dialyzed AuNPs (a) before and (b) after the Ag⁺ staining, (c) is the SERS spectra obtained with AgNPs. The structure of BuT and BMDT are also shown. The SERS spectra are normalized to the peak denoted by “^*”.