@article { ISI:000457290300006,
	title = {Unwinding a spiral of cellulose nanocrystals for stimuli-responsive stretchable optics},
	journal = {NATURE COMMUNICATIONS},
	volume = {10},
	year = {2019},
	month = {JAN 31},
	pages = {510},
	publisher = {NATURE PUBLISHING GROUP},
	type = {Article},
	address = {MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND},
	abstract = {Cellulose nanocrystals (CNCs) derived from biomass spontaneously organize into a helical arrangement, termed a chiral nematic structure. This structure mimics the organization of chitin found in the exoskeletons of arthropods, where it contributes to their remarkable mechanical strength. Here, we demonstrate a photonic sensory mechanism based on the reversible unwinding of chiral nematic CNCs embedded in an elastomer, leading the materials to display stimuli-responsive stretchable optics. Vivid interference colors appear as the film is stretched and disappear when the elastomer returns to its original shape. This reversible optical effect is caused by a mechanically-induced transition of the CNCs between a chiral nematic and pseudo-nematic arrangement.},
	issn = {2041-1723},
	doi = {10.1038/s41467-019-08351-6},
	author = {Kose, Osamu and Tran, Andy and Lewis, Lev and Hamad, Wadood Y. and MacLachlan, Mark J.}
}
