Formation of a Multiscale Aggregate Structure through Spontaneous Blebbing of an Interface

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• 作者：Yutaka Sumino ; Hiroyuki Kitahata ; Yuya Shinohara ; Norifumi L. Yamada ; Hideki Seto
• 刊名：Langmuir
• 出版年：2012
• 出版时间：February 21, 2012
• 年：2012
• 卷：28
• 期：7
• 页码：3378-3384
• 全文大小：400K
• 年卷期：v.28,no.7(February 21, 2012)
• ISSN：1520-5827

文摘

The motion of an oil鈥搘ater interface that mimics biological motility was investigated in a Hele鈥揝haw-like cell where elastic surfactant aggregates were formed at the oil鈥搘ater interface. With the interfacial motion, millimeter-scale pillar structures composed of the aggregates were formed. The pillars grew downward in the aqueous phase, and the separations between pillars were roughly equal. Small-angle X-ray scattering using a microbeam X-ray revealed that these aggregates had nanometer-scale lamellar structures whose orientation correlated well with their location in the pillar structure. It is suggested that these hierarchical spatial structures are tailored by the spontaneous interfacial motion.