Chiral Transfer Across Multiple Length Scales

The chiral self-assembly of nanoscale building blocks is a universal phenomenon that demonstrates the emergence of large-scale structures from the properties of individual sub-units. In many self-organising colloidal systems exhibiting chiral nematic structures, such as cellulose nanocrystals (CNC), the emergence of chirality in the mesophase is correlated to the properties of the building blocks and is therefore necessarily fixed. In this talk, I will review how the chirality transfers from molecular to colloidal scale and finally the self-assembly also in the presence of different chiral additives and review some tricks that can be used to achieve CNC-colored films with circular right-polarized light reflection.