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. 2021 Jul 29;9:718709. doi: 10.3389/fchem.2021.718709

FIGURE 1.

FIGURE 1

The development of NIR-II cyanine dyes for improving biological bioimaging, disease diagnosis and navigation surgery. (A) Core structures of NIR-I/II cyanine dyes. (B) Absorption and emission spectra of ICG and IR-1061 (in acetonitrile). Reproduced with permission from (Yeroslaysky et al., 2019). (C) TEM images, DLS, molecular dynamics simulation (red frame), and schematic diagram of FD-1080J-aggregates. Reproduced with permission from (Sun et al., 2019) Copyright 2019 ACS publications. (D) Multicolor imaging in mice using ICG, MeOFlav7 and JuloFlav7. Reproduced with permission from (Cosco et al., 2020) Copyright 2020 Springer Nature Publishing Group. (E) The diagram of multichannel biological imaging through multi-wavelength emission and tunable lifetime.