Spreading Behavior of Water Droplets on Fractal Agar Gel Surfaces

被引：33
|
作者：
Nonomura, Yoshimune [1 ]
Morita, Yusuke [1 ]
Hikima, Takako [1 ]
Seino, Eri [1 ]
Chida, Shigeki [1 ]
Mayama, Hiroyuki [2 ]
机构：
[1] Yamagata Univ, Grad Sch Sci & Engn, Dept Biochem Engn, Yonezawa, Yamagata 9928510, Japan
[2] Hokkaido Univ, Res Inst Elect Sci, Sapporo, Hokkaido 0010021, Japan
来源：
LANGMUIR | 2010年 / 26卷 / 20期
关键词：
FORMATION MECHANISM; CONTACT ANGLES; WETTABILITY; DROPS;
D O I：
10.1021/la103123d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Agar gels with hierarchical rough surfaces, referred to as "fractal agar gels," were prepared to model biological surfaces coated with mucus. Agar gels with rough surfaces of fractal dimension D = 2.2 were synthesized by transferring a fractal surface structure of alkylketene dimer (AKD). The rough structure accelerated the spreading of water droplets and induced the appearance of a wicking front. The mechanism of acceleration of the spreading on fractal surfaces based on a semiquantitative theoretical model was also clarified.
引用
收藏
页码：16150 / 16154
页数：5
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