Figure 1.

HAADF micrograph and histogram of size for Ag nanoparticles of:a,b1.3 ± 0.2 nm;c,d1.7 ± 0.3 nm;e,f2.5 ± 0.4 nm;g,h3.7 ± 0.4 nm;i,j4.5 ± 0.9 nm; andk,l5.5 ± 0.3 nm. Taking into account only the particles dispersed on the sample surface, and leaving the aggregates out of the accountancy

Gracia-Pinilla et al. Nanoscale Research Letters 2009 4:896-902   doi:10.1007/s11671-009-9328-4