A comparative study of galvanic replacement reactions involving Ag nanocubes and AuCl2- or AuCl4-

Galvanic replacement of Ag nanocubes with AuCl2- and AuCl4- results in morphological, compositional, and spectral differences that provide insight into the reaction mechanism by which hollow/porous gold nanostructures can be prepared for biomedical applications (see figure).