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. Author manuscript; available in PMC: 2012 Jul 27.
Published in final edited form as: J Am Chem Soc. 2011 Jun 30;133(29):11014–11017. doi: 10.1021/ja201930p

Figure 4.

Figure 4

Luminescence intensities of the cell membrane and zeta potentials of GC-AuNPs at different pHs. (A) Luminescence intensity of the cell membrane incubated with GC-AuNPs at different pH in PBS or in minimum essential medium (MEM) supplemented with 10% (v/v) fetal bovine serum (FBS) (Inset) respectively. (B) Zeta potentials of G-AuNPs and GC-AuNPs at pH 7.4 and pH 5.3 respectively. Results were presented as mean±SD (n = 6).