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. Author manuscript; available in PMC: 2019 Jan 10.
Published in final edited form as: ACS Appl Mater Interfaces. 2017 Dec 20;10(1):75–82. doi: 10.1021/acsami.7b12614

Figure 3.

Figure 3.

MALDI-TOF mass spectra of the Au25(SG)18 nanoclusters synthesized at (a) room temperature for 24 h and (b) 60 °C for 2 h using TPB matrix in the negative mode.