Supramolecular Interactions Induced Chiral Assembly of Plasmonic Nanoparticles with Enhanced Optical Asymmetry

Science has recently reported the important progress of chiral nanomaterials achieved by LIU Kun' s group from Jilin University and coworkers. Supramolecular interactions of gold nanorods(NRs)with human islet amyloid peptides catalyze their assembly into metallic superstructures with unusually high cholesteric order. Contrary to current theories,the transition from individual NRs to long straight helices leads to increase of g-factor (up to 0.12) by 4600 times. This work establishes the link between the liquid crystals and chiral in. organic nanostructures;provides unifying design principles for organic and inorganic optically active media and opens new modalities for drug discovery for amyloid diseases.