Figure 1:

Photographs (A) and extinction spectra (B) of various 60-nm metal nanoparticles (AgNPs, AuNPs, and Au/Ag nanoshells) in water. LSPR peaks are observed at 430 nm, 540 nm, and 630 nm, respectively. Reprinted with permission from [139]. Copyright 2013 Royal Society of Chemistry.

© De Gruyter