Figure 1

(A) SEM images of Au NCs. (B) Photograph and UV absorption spectra of Au NPs and Au NCs. (C, D) SEM images of MWCNT-NH2 with different magnification.

(A) SEM images of Au NCs. (B) Photograph and UV absorption spectra of Au NPs and Au NCs. (C, D) SEM images of MWCNT-NH2 with different magnification.