Chiral Seeded Growth of Gold Nanorods Into Fourfold Twisted Nanoparticles with Plasmonic Optical Activity (Adv. Mater. 1/2023)

Chiral Nanoparticles In article number 2208299, Bing Ni, Sara Bals, Luis M. Liz-Marzán, and co-workers show how plasmonic optical activity in chiral nanoparticles can be tuned and optimized through the chiral morphological details. Twisted gold nanorods evolve through removal of mirror symmetry during dissymmetric seeded growth. Both experimental and theoretical analysis indicates that the underlying mechanism relates to cysteine-induced enantioselective development of chiral facets. The resulting 4-fold twisted structure leads to high dissymmetry factors.