Fig. 3. Chiral plasmonic structures assembled on scaffolds.

(A) TEM image of twisted anthraquinone-based oxalamide fibers, which are infiltrated with gold nanorods. (B) CD spectra of double helix assembled using peptides. The structure is illustrated with the help of 3D surface renderings of topographic volumes. (C) A system of layered twisted cellulose nanocrystals is used as a scaffold for gold nanorods. Figures were reproduced with permission from Guerrero-Martínez et al. (55) (A), Song et al. (56) (B), and Querejeta-Fernández et al. (59) (C).