fig5

Figure 5. Pressure visualization utilizing structural color. (A) Molecular structures and optical images of the three chiral liquid crystal phases to construct the photonic crystal; (B) The photographs of the photonic crystal with increased strain^[54]. Reprinted with permission, Copyright 2024, Wiley-VCH; (C) Application of mechanochromic devices. Top: Bandages based on a mechanochromic device to indicate the pressure distribution on the underlying skin. Bottom: A color-shifting plaster based on a mechanochromic device^[17]. Reprinted with permission, Copyright 2022, Springer Nature.