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. Author manuscript; available in PMC: 2022 Sep 13.
Published in final edited form as: Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2020 Mar 11;12(4):e1624. doi: 10.1002/wnan.1624

FIGURE 1.

FIGURE 1

Optical imaging modalities used for IGS with examples of surgical tumor detection from the literature: fluorescence (Reprinted with permission from Zhao et al., 2017. Copyright 2016 Springer Nature), photoacoustic (Reprinted with permission from Thawani et al., 2017. Copyright 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim), Raman spectroscopy (Reprinted with permission from Mohs et al., 2010. Copyright 2010 American Chemical Society), theranostics (Reprinted with permission from Li et al., 2018. Copyright Ivy Spring International Publisher), and multimodal imaging (Reprinted with permission from Jin, Li, Yang, & Tian, 2019. Copyright Acta Materialia Inc. published by Elsevier Ltd.)