Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA.
Integr Biol (Camb). 2009 Apr;1(4):324-9. doi: 10.1039/b820205b. Epub 2009 Feb 12.
The Greta oto, or the "glasswing butterfly", is a member of the Ithomiini tribe. Although rare among lepidopteran, the G. oto's wings are naturally transparent. To understand the material properties of natural transparency, the various structures on the surface of the wings, both the transparent and brown "veins" and wing parameter regions were studied using scanning electron microscopy (SEM), transmission electron microscopy (TEM), reflectance spectrometry, transmission spectrometry and scanning probe microscopy (SPM) in order to investigate their local structure, periodic character, and electromechanical response. Nanosized protuberances in a highly ordered array were found on the surface of the transparent part similar to that of the "corneal nipple array" found in other insects as an antireflective device.
玻璃翼蝶，又名“Greta oto”，属于闪蝶族。尽管在鳞翅目昆虫中较为罕见，但玻璃翼蝶的翅膀天生就是透明的。为了了解自然透明的材料特性，我们使用扫描电子显微镜（SEM）、透射电子显微镜（TEM）、反射光谱仪、透射光谱仪和扫描探针显微镜（SPM）研究了翅膀表面的各种结构，包括透明和棕色的“脉络”以及翅膀参数区域，以研究它们的局部结构、周期性特征和机电响应。在透明部分的表面发现了类似于其他昆虫的“角膜乳头阵列”的高度有序纳米级突起，这是一种抗反射装置。
