Figure 2

TEM images for GSH-AuNCs powders (a) lower magnification, (b) higher magnification) and GSH-AuNCs powders in the presence of Zn2+ (c) lower magnification, (d) higher magnification.

TEM images for GSH-AuNCs powders (a) lower magnification, (b) higher magnification) and GSH-AuNCs powders in the presence of Zn2+ (c) lower magnification, (d) higher magnification.