Results 241 to 250 of about 24,414 (291)

Smart Anisotropic Wetting Surfaces with Reversed pH‐Responsive Wetting Directions

Advanced Functional Materials, 2018
AbstractSmart pH‐responsive surfaces that could autonomously induce unidirectional wetting of acid and base with reversed directions are fabricated. The smart surfaces, consisting of chemistry‐asymmetric “Janus” silicon cylinder arrays (Si‐CAs), are prepared by precise modification of functional groups on each cylinder unit.
Peng Ge, Jianglei Zhang, Yongshun Liu, Shuli Wang, Wendong Liu, Nianzuo Yu, Yuxin Wu, Junhu Zhang, Bai Yang   +8 more
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Anisotropic wetting on structured surfaces

MRS Bulletin, 2013
Abstract
Matthew J. Hancock, Melik C. Demirel
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Controllable underwater anisotropic oil-wetting

Applied Physics Letters, 2014
This Letter demonstrates a simple method to achieve underwater anisotropic oil-wetting using silicon surfaces with a microgroove array produced by femtosecond laser ablation. The oil contact angles along the direction perpendicular to the grooves are consistently larger than those parallel to the microgroove arrays in water because the oil droplet is ...
Jiale Yong, Feng Chen, Qing Yang, Umar Farooq, Hao Bian, Guangqing Du, Xun Hou   +6 more
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Anisotropic wetting on tunable micro-wrinkled surfaces

Soft Matter, 2007
We examine the wettability of rough surfaces through a measurement approach that harnesses a wrinkling instability to produce model substrate topographies. Specifically, we probe the wetting of liquids on anisotropic micro-wrinkled features that exhibit well-defined aspect ratios (amplitude wavelength of the wrinkles) that can be actively tuned.
Jun Young, Chung, Jeffrey P, Youngblood, Christopher M, Stafford   +2 more
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Anisotropic capillary surfaces with wetting energy

Calculus of Variations and Partial Differential Equations, 2006
The authors generalize results of \textit{T. I. Vogel} and \textit{R. Finn} [Z. Anal. Anwend. 11, No. 1, 3--23 (1992; Zbl 0760.76015)] and \textit{M. Athanassenas} [Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 26, No. 4, 749--762 (1998; Zbl 0927.76011)] concerning liquid drops between two parallel planes to free anisotropic energies of the type ...
Koiso, Miyuki, Palmer, Bennett
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Liquid wetting across porous anisotropic textiles

SIGGRAPH Asia 2017 Posters, 2017
This paper presents a new simulation framework for liquid wetting across porous textiles with anisotropic inner structure. The influence of the textile's properties on the wetting process, such as contact angle, hygroscopicity and porosity, is considered into the liquid wetting process in detail.
Aihua Mao, Mingle Wang, Yong-jin Liu, Huamin Wang, Guiqing Li   +4 more
openaire   +1 more source

Strongly Anisotropic Wetting on One-Dimensional Nanopatterned Surfaces

Nano Letters, 2008
This communication reports strongly anisotropic wetting behavior on one-dimensional nanopatterned surfaces. Contact angles, degree of anisotropy, and droplet distortion are measured on micro- and nanopatterned surfaces fabricated with interference lithography.
Deying, Xia, S R J, Brueck
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Micropolarizer fabricated from CaCO_3 by anisotropic wet etching

Applied Optics, 2003
A micropolarizer is fabricated on a birefringent crystal, calcite, by anisotropic wet etching. This device consists of a v-groove grating on calcite, covered by an index-matching material. The grating is fabricated by acid wet etching. When its acid concentration and stirring speed are altered, the etching mechanism can be controlled within the surface-
Yu-Chi, Chang, Hao-Ting, Tien, Chung-Dau, Sung, Chien-Chieh, Lee, Chih-Ming, Wang, Jenq-Yang, Chang   +5 more
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Anisotropic Electrowetting on Wrinkled Surfaces: Enhanced Wetting and Dependency on Initial Wetting State

Langmuir, 2018
Electrowetting on dielectric (EWOD) on unidirectional microstructured surfaces has recently evoked significant interest as they can modulate the effect of electrowetting, and can thus find applications in directional wetting in microfluidic systems. However, the dependency of such EW phenomenon on their initial state of wetting and anisotropy is far ...
Vartika Parihar, Saumyadwip Bandyopadhyay, Soumen Das, Sunando Dasgupta   +3 more
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Anisotropic wet etching on birefringent calcite crystal

Applied Physics A, 2005
In this paper, a mechanism for wet etching on birefringent calcite crystal is discussed. By altering the etchant type, its concentration and the stirring speed, the etching mechanism can be confined within the surface reaction regime, resulting in anisotropic etching.
C.M. Wang, Y.C. Chang, C.D. Sung, H.T. Tien, C.C. Lee, J.Y. Chang   +5 more
openaire   +1 more source