中文摘要：

通过场发射扫描电子显微镜,观察了红蜻翅痣的截面,发现了令人惊奇的纳米纤维层状结构：套筒状的翅痣中存在厚度为2~3μm的夹心层;夹心层由二十多层超薄纳米层逐层复合而成;超薄纳米层的厚度大约为90~150nm;每层超薄纳米层由平行排列的纳米纤维黏结而成奇异的纳米纤维层状结构,为理解翅痣的功能和仿生制造提供了启示.

英文摘要：

The sections of the pterostigma of a dragonfly （Crocothemis servilla Drury） are observed through FEG-ESEM, and interesting nano fibrous multilayered structures are discovered. The sleeve-like pterostigma has a center layer with the thickness of 2-3 ~tm. The center layer is composed of more than twenty ultra-thin nano layers with the thickness of 90-150 nm. Every ultra-thin nano layer is formed by parallel nano fibers adhered one-by-one. The marvelous nano fibrous multilayered structure provides refer- ence for mankind to understand better the function of the pterostigma and to improve better the bionics manufactures.