Table 1 The atomic content of C, N, O and the specific content of N-related and O-related chemical bonds of AcOH-CDs, DMK-CDs, DMF-CDs and FA-CDs in XPS spectra

From: One step synthesis of efficient red emissive carbon dots and their bovine serum albumin composites with enhanced multi-photon fluorescence for in vivo bioimaging

 

C

N

O

N

O

C − N = C

N − H

C = O

C − O/O − H

AcOH-CDs

59.26%

12.06%

28.68%

4.42%

7.64%

9.44%

19.24%

DMK-CDs

72.22%

9.58%

18.20%

7.84%

1.74%

7.17%

11.03%

DMF-CDs

55.61%

20.43%

23.96%

9.95%

10.48%

16.26%

7.70%

FA-CDs

59.84%

15.52%

24.64%

10.22%

5.30%

17.43%

7.21%

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