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. 2020 Apr 15;12(4):361. doi: 10.3390/pharmaceutics12040361

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© 2020 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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Surface-Enhanced Raman Spectroscopy (SERS) analysis of the four samples. From left to right: (a) TCA-AgNP; (b) TCA-AgNP-PI; (c) Cinn-AgNP; (d) Cinn-AgNP-PI.

Surface-Enhanced Raman Spectroscopy (SERS) analysis of the four samples. From left to right: (a) TCA-AgNP; (b) TCA-AgNP-PI; (c) Cinn-AgNP; (d) Cinn-AgNP-PI.