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. 2020 Jan 13;10(1):143. doi: 10.3390/nano10010143

Figure 3.

Figure 3

Chemical characterization of C60-NOTA. (A) FTIR spectra of naked C60 (orange), the deprotected serinolamide malonate compound that is conjugated to the C60 cage (green), and the C60-NOTA conjugate (black); (B) DLS spectrum showing the hydrodynamic diameter of C60-NOTA; (C) HPLC chromatograms of C60-NOTA (orange), C60-Cu(NOTA) (green), and NOTA alone (black). Peak at 3.1 min is an impurity in the commercial NOTA compound that did not affect radiochemistry.