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. 2019 May 7;24(5):055001. doi: 10.1117/1.JBO.24.5.055001

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© The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Fig. 7 — Corresponding photographic image (a) of VFA-chips for varying concentration of S100P mRNA and (b) the variation plot of the SERS intensity at $1170 {cm}^{- 1}$ of three VFA-chips collected from three different spots on each chip (red-25 nM, blue-100 nM, and green-200 nM of S100P mRNA).