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. 2020 Oct 22;10:18052. doi: 10.1038/s41598-020-75090-w

Figure 10.

Figure 10

Emission patterns of (a) GO, (b) GO-PEG, (c) GO-PEG-Fe3O4, (d) GO-PEG-Au, and (e) GO-PEG-FA at the excitation wavelength of 350 nm in water, cell media (DMEM), and PBS at two different pH values (pH 6.6 and 7.4).