Fig. 7From: Recent advances in chiral nanomaterials with unique electric and magnetic propertiesCopyright 2018 AAASa d-Cys and l-Cys Co3O4 NPs. b Magnetic hysteresis loop at 300Â K and 4Â K. c CD spectra of d- and l-Cys Co3O4 NPs with their ligand-exchanged counterparts using l- and d-penicillamine. d g-factor spectra of l-Cys Co3O4 NPs with varying their Cu atomic concentration. Reproduced with permission from [9].Back to article page