Fig. 10
From: Recent advances in chiral nanomaterials with unique electric and magnetic properties
Copyright 2020 Wiley
a 3D-model (left), corresponding scanning electron microscope (SEM) image (right), and circular dichroism and extinction spectra of 432 helicoid III. Scale bar, 100 nm. b Photographs of cross-polarized transmission of achiral (left) and 432 helicoid III (right) solutions. c CD spectra of seven 432 helicoid III dispersions having different λmax values corresponding to the wavelength of maximum g-factor. d Polarization-resolved transmission colors of achiral nanoparticle (first row) and seven 432 helicoid III dispersions. Reproduced with permission from [72]. Copyright 2018. Nature Publishing Group. e TEM image of Au nanofibers with twisted morphologies (left) and representation of a right-handed chiral Au fiber with BCB helix structure. f Circular dichroism and absorption spectra of l- and R-chiral nanostructures Au films. g Raman spectra (top) and dependencies (bottom) of the largest SERS peak areas on ee values from − 100% to + 100% for 2-butanol, showing SERS-ChA effect of R-CNAFs. Reproduced with permission from [73].