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. Author manuscript; available in PMC: 2020 Jan 4.
Published in final edited form as: J Am Chem Soc. 2019 Oct 29;141(44):17601–17609. doi: 10.1021/jacs.9b06694

Figure 3.

Figure 3.

Linear correlation between extinction coefficient and measured in vitro PA signal (10 μM, CHCl3, in tissue-mimicking phantom) of red-HyP-1 (indicated by the θ) and analogues 1–6 (labeled in white). Representative in vitro PA images are displayed on the right, in decreasing order of intensity.