Preparation of Silver Nanoparticles and Their Industrial and Biomedical Applications: A Comprehensive Review

Figure 3

TEM images of (a) initial silver nanoprisms; (b) samples at 45 min with gold deposition on the prism edges; (c) samples from stage 2 with some small pinholes; (d) samples with partially refilled pinholes after 120 min (stage 3); (e) samples at 200 min with full gold shells (stage 4); (f) a typical final gold-coated nanoprism (the inset is the cross-sectional view with a scale bar of 10 nm). Reproduce from Shahjamali et al. with permission from wily publisher [18].