Unraveling the Salvinia Paradox: Design Principles for Submerged Superhydrophobicity

被引:46
作者
Amabili, M. [1 ]
Giacomello, A. [1 ]
Meloni, S. [2 ]
Casciola, C. M. [1 ]
机构
[1] Univ Roma La Sapienza, Dipartimento Ingn Meccan & Aerosp, I-00184 Rome, Italy
[2] Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, Lab Computat Chem & Biochem, CH-1015 Lausanne, Switzerland
基金
欧洲研究理事会;
关键词
FREE-ENERGY; SURFACE; RESISTANCE; TRANSITION; LOTUS;
D O I
10.1002/admi.201500248
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The complex structure of the Salvinia molesta is investigated via rare event molecular dynamics simulations. Results show that a hydrophilic/hydrophobic patterning together with a re-entrant geometry control the free energy barriers for bubble nucleation and for the Cassie-Wenzel transition. This natural paradigm is translated into simple macroscopic design criteria for engineering robust superhydrophobicity in submerged applications. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页数:5
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