Fig. 8

a Schematic representation of samples with shifted hysteresis loop using metallic cobalt-gold bilayer with chiral polypeptide deposition. b Shifted magnetization hysteresis loop of l-polypeptide (l-AHPA) deposited bilayer sample compared with bare bilayer sample. Reproduced with permission from [59]. Copyright 2017 Nature Publishing Group. c Schematic representation of single domain Fe₃O₄ NPs (SPIONs) with ferromagnetism deposited on a chiral polypeptide layer. d SQUID measurements of magnetizations hysteresis loop. SPIONs with an l-AHPA layer exhibit hysteresis loop comparable to hysteresis loop of typical ferromagnetic NPs. Reproduced with permission from [60].