摘要
经过数十亿年的进化,自然界中的生物体有着与生存环境相适应的优异结构和特殊功能。笔者以具有超疏水自清洁功能的荷叶表面、色彩斑斓可以吸引异性的雄孔雀羽毛,以及具有高强度高韧性等优异机械性能的贝壳珍珠层这三种生物体表面和生物材料为例,展示了其微观形貌上的纳米结构以及这些纳米结构精密有序的组装方式,揭示了这种微观结构与其在宏观上的特殊性能存在的必然联系。
After several billion years＇ evolution, creatures in nature possess perfect structures and unique functions which favor their acclimatization. For instance, the lotus leaf exhibits almost complete self-cleaning ability with its superhydrophobic surface, the male peacock has colorful and beautiful feathers which are helpful in its courtship display, and the nacre from seashells exhibits superior levels of strength and toughness. This paper thus introduces the lnicromorphology of the three organisms mentioned above, and reveals that the unique functions of organisms are related with the nanostructures and the accurate assembly method of these nanostructures in their microstructures.
出处
《自然杂志》
北大核心
2013年第6期451-457,共7页
Chinese Journal of Nature
关键词
微观结构
超疏水表面
光子晶体
结构色
珍珠层
microstructure, superhydrophobic surface, photonic crystal, structural colors, nacre
