Speaker
Tonghui Jin
Description
The helical periodicity and layered structure in cholesteric liquid crystals (CLCs) may be tuned to generate structural color according to the Bragg's law of diffraction. Here, the possibility of using amyloid CLCs is reported to prepare films with iridescent color reflection and opposite handedness. Right-handed CLCs assembled by left-handed amyloid fibrils are dried into layered structures with variable pitch controlled by the addition of glucose. Circularly polarized light with the same handedness of amyloid CLCs helix is reflected in the Bragg regime. Varying the drying speed leads to the switching between films with a rainbow-like color gradient and large area uniform color.
Author
Tonghui Jin
Co-authors
Dr
Yuan Ye
Dr
Massimo Bagnani
Prof.
Chao Wu
Dr
Bin Liu
Prof.
Raffaele Mezzenga
