Fig. 4: Macroscopic mechanochromic response of CLCE fibres.
From: Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
a–h, Large-scale view of uniaxial and biaxial mechanochromic response under ambient light of a simple weave of CLCE fibres (a–d; from Supplementary Video 7), and a single long CLCE fibre sewn into a passive elastic cloth in the shape of a ‘C’ (e–h). Grey arrows at the top represent the mechanical strain directions. i, Snapshot of the sewing procedure from Supplementary Video 8. j,k, Three sections cut from one CLCE fibre with red ground-state retroreflection, without (bottom), with medium (middle) and with high (top) concentrations of Sudan Black, relaxed (j) and stretched (k) across a black cloth next to a white paper (from Supplementary Video 9).
