Rassart Marie, Simonis Priscilla, Bay Annick, Deparis Olivier, Vigneron Jean Pol
Research Center in Physics of Matter and Radiation, University of Namur (FUNDP), 61 rue de Bruxelles, B-5000 Namur, Belgium.
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Sep;80(3 Pt 1):031910. doi: 10.1103/PhysRevE.80.031910. Epub 2009 Sep 21.
The blue scales on the cuticle of the male beetle Hoplia coerulea can absorb water, with the consequence that these scales, which have been shown to be responsible for the beetle's bright blue coloration, reversibly turn to emerald green with increasing water contents. Optical measurements are shown, by analytic photonic-crystal models, to be compatible with the full filling of the scales structures with water. The natural mechanism shows the way to produce a very efficient hygrochromic material: a medium which significantly changes color when its water contents are modified.
雄性蓝 Hoplia coerulea 甲虫角质层上的蓝色鳞片能够吸收水分，结果是，这些已被证明是甲虫亮蓝色的成因的鳞片，会随着含水量的增加而可逆地变成翠绿色。通过解析光子晶体模型表明，光学测量结果与鳞片结构被水完全填充的情况相符。这种自然机制展示了一种生产非常高效的湿致变色材料的方法：一种当其含水量发生变化时会显著改变颜色的介质。
