Length scale selects directionality of droplets on vibrating pillar ratchet

Agapov, Rebecca L.; Boreyko, Jonathan B.; Briggs, Dayrl P.; Srijanto, Bernadeta R.; Retterer, Scott T.; Collier, C. Patrick; Lavrik, Nickolay V.

doi:10.1002/admi.201400337

Length scale selects directionality of droplets on vibrating pillar ratchet

Journal Article · Mon Sep 22 04:00:00 EDT 2014 · Advanced Materials Interfaces

DOI:https://doi.org/10.1002/admi.201400337· OSTI ID:1214464

Agapov, Rebecca L. ^[1]; Boreyko, Jonathan B. ^[2]; Briggs, Dayrl P. ^[1]; Srijanto, Bernadeta R. ^[2]; Retterer, Scott T. ^[1]; Collier, C. Patrick ^[1]; Lavrik, Nickolay V. ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

Directional control of droplet motion at room temperature is of interest for applications such as microfluidic devices, self-cleaning coatings, and directional adhesives. Here, arrays of tilted pillars ranging in height from the nanoscale to the microscale are used as structural ratchets to directionally transport water at room temperature. Water droplets deposited on vibrating chips with a nanostructured ratchet move preferentially in the direction of the feature tilt while the opposite directionality is observed in the case of microstructured ratchets. This remarkable switch in directionality is consistent with changes in the contact angle hysteresis. To glean further insights into the length scale dependent asymmetric contact angle hysteresis, the contact lines formed by a nonvolatile room temperature ionic liquid placed onto the tilted pillar arrays were visualized and analyzed in situ in a scanning electron microscope. As a result, the ability to tune droplet directionality by merely changing the length scale of surface features all etched at the same tilt angle would be a versatile tool for manipulating multiphase flows and for selecting droplet directionality in other lap-on-chip applications.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1214464

Journal Information:: Advanced Materials Interfaces, Journal Name: Advanced Materials Interfaces Journal Issue: 9 Vol. 1; ISSN 2196-7350

Publisher:: Wiley-VCH

Country of Publication:: United States

Language:: English

References (48)

Thermal dewetting of Pt thin film: Etch-masks for the fabrication of semiconductor nanostructures Lee, Ji-Myon; Kim, Byung-Il Materials Science and Engineering: A, Vol. 449-451 https://doi.org/10.1016/j.msea.2006.02.403	journal	March 2007
Self-similarity of contact line depinning from textured surfaces Paxson, Adam T.; Varanasi, Kripa K. Nature Communications, Vol. 4, Issue 1 https://doi.org/10.1038/ncomms2482	journal	February 2013
Asymmetric Wettability of Nanostructures Directs Leidenfrost Droplets Agapov, Rebecca L.; Boreyko, Jonathan B.; Briggs, Dayrl P. ACS Nano, Vol. 8, Issue 1 https://doi.org/10.1021/nn405585m	journal	December 2013
Surface Tension Transport of Prey by Feeding Shorebirds: The Capillary Ratchet Prakash, M.; Quere, D.; Bush, J. W. M. Science, Vol. 320, Issue 5878 https://doi.org/10.1126/science.1156023	journal	May 2008
Thermocapillary actuation of droplets on chemically patterned surfaces by programmable microheater arrays Darhuber, A. A.; Valentino, J. P.; Troian, S. M. Journal of Microelectromechanical Systems, Vol. 12, Issue 6 https://doi.org/10.1109/JMEMS.2003.820267	journal	December 2003
Anisotropic wetting and superhydrophobicity on holographically featured 3D nanostructured surfaces Park, Sung-Gyu; Moon, Jun Hyuk; Jeon, Hwan Chul Soft Matter, Vol. 8, Issue 17 https://doi.org/10.1039/c2sm07406k	journal	January 2012
Multiscale Roughness and Stability of Superhydrophobic Biomimetic Interfaces Nosonovsky, Michael Langmuir, Vol. 23, Issue 6, p. 3157-3161 https://doi.org/10.1021/la062301d	journal	March 2007
Effect of Surface Texturing on Superoleophobicity, Contact Angle Hysteresis, and “Robustness” Zhao, Hong; Park, Kyoo-Chul; Law, Kock-Yee Langmuir, Vol. 28, Issue 42 https://doi.org/10.1021/la302765t	journal	October 2012
Experimental study of the density and viscosity of 1-ethyl-3-methylimidazolium ethyl sulfate Schmidt, H.; Stephan, M.; Safarov, J. The Journal of Chemical Thermodynamics, Vol. 47 https://doi.org/10.1016/j.jct.2011.09.027	journal	April 2012
Contact angle hysteresis origins: Investigation on super-omniphobic surfaces Dufour, Renaud; Harnois, Maxime; Thomy, Vincent Soft Matter, Vol. 7, Issue 19 https://doi.org/10.1039/c1sm05832k	journal	January 2011
Contact Angle Hysteresis Explained Gao, Lichao; McCarthy, Thomas J. Langmuir, Vol. 22, Issue 14 https://doi.org/10.1021/la060254j	journal	July 2006
Controlling Liquid Drops with Texture Ratchets Duncombe, Todd A.; Erdem, E. Yegân; Shastry, Ashutosh Advanced Materials, Vol. 24, Issue 12 https://doi.org/10.1002/adma.201104446	journal	February 2012
Zipping Effect on Omniphobic Surfaces for Controlled Deposition of Minute Amounts of Fluid or Colloids Dufour, Renaud; Brunet, Philippe; Harnois, Maxime Small, Vol. 8, Issue 8 https://doi.org/10.1002/smll.201101895	journal	February 2012
Directional Oil Sliding Surfaces with Hierarchical Anisotropic Groove Microstructures Kang, Seong Min; Lee, Chanseok; Kim, Hong Nam Advanced Materials, Vol. 25, Issue 40 https://doi.org/10.1002/adma.201302083	journal	August 2013
Water transport mechanism through open capillaries analyzed by direct surface modifications on biological surfaces Ishii, Daisuke; Horiguchi, Hiroko; Hirai, Yuji Scientific Reports, Vol. 3, Issue 1 https://doi.org/10.1038/srep03024	journal	October 2013
Wettability patterning for high-rate, pumpless fluid transport on open, non-planar microfluidic platforms Ghosh, Aritra; Ganguly, Ranjan; Schutzius, Thomas M. Lab Chip, Vol. 14, Issue 9 https://doi.org/10.1039/C3LC51406D	journal	January 2014
Stroke Asymmetry of Tilted Superhydrophobic Ion Track Textures Spohr, Reimar; Sharma, Gunjana; Forsberg, Pontus Langmuir, Vol. 26, Issue 9 https://doi.org/10.1021/la904137t	journal	May 2010
Lithography-free approach to highly efficient, scalable SERS substrates based on disordered clusters of disc-on-pillar structures Agapov, Rebecca L.; Srijanto, Bernadeta; Fowler, Chris Nanotechnology, Vol. 24, Issue 50 https://doi.org/10.1088/0957-4484/24/50/505302	journal	November 2013
Directional adhesion of superhydrophobic butterfly wings Zheng, Yongmei; Gao, Xuefeng; Jiang, Lei Soft Matter, Vol. 3, Issue 2 https://doi.org/10.1039/B612667G	journal	January 2007
Directional Transport of Polymer Sheet and a Microsphere by a Rationally Aligned Nanowire Array Wu, Weiwei; Cheng, Li; Bai, Suo Advanced Materials, Vol. 24, Issue 6 https://doi.org/10.1002/adma.201104085	journal	January 2012
Asymmetric Ratchet Effect for Directional Transport of Fog Drops on Static and Dynamic Butterfly Wings Liu, Chengcheng; Ju, Jie; Zheng, Yongmei ACS Nano, Vol. 8, Issue 2 https://doi.org/10.1021/nn404761q	journal	January 2014
Adhesive force of a single gecko foot-hair Autumn, Kellar; Liang, Yiching A.; Hsieh, S. Tonia Nature, Vol. 405, Issue 6787 https://doi.org/10.1038/35015073	journal	June 2000
Directional shedding-off of water on natural/bio-mimetic taper-ratchet array surfaces Guo, Peng; Zheng, Yongmei; Liu, Chengcheng Soft Matter, Vol. 8, Issue 6 https://doi.org/10.1039/C1SM06631E	journal	January 2012
Superhydrophobic Tracks for Low-Friction, Guided Transport of Water Droplets Mertaniemi, Henrikki; Jokinen, Ville; Sainiemi, Lauri Advanced Materials, Vol. 23, Issue 26 https://doi.org/10.1002/adma.201100461	journal	April 2011
Tunable Anisotropic Wettability of Rice Leaf-Like Wavy Surfaces Lee, Seung Goo; Lim, Ho Sun; Lee, Dong Yun Advanced Functional Materials, Vol. 23, Issue 5 https://doi.org/10.1002/adfm.201201541	journal	September 2012
Some thoughts on superhydrophobic wetting Dorrer, Christian; Rühe, Jürgen Soft Matter, Vol. 5, Issue 1 https://doi.org/10.1039/B811945G	journal	January 2009
Physical Properties of Pure 1-Ethyl-3-methylimidazolium Ethylsulfate and Its Binary Mixtures with Ethanol and Water at Several Temperatures Gómez, Elena; González, Begoña; Calvar, Noelia Journal of Chemical & Engineering Data, Vol. 51, Issue 6 https://doi.org/10.1021/je060228n	journal	November 2006
Design and Fabrication of Micro-textures for Inducing a Superhydrophobic Behavior on Hydrophilic Materials Cao, Liangliang; Hu, Hsin-Hua; Gao, Di Langmuir, Vol. 23, Issue 8 https://doi.org/10.1021/la063572r	journal	April 2007
An engineered anisotropic nanofilm with unidirectional wetting properties Malvadkar, Niranjan A.; Hancock, Matthew J.; Sekeroglu, Koray Nature Materials, Vol. 9, Issue 12 https://doi.org/10.1038/nmat2864	journal	October 2010
Dynamic Defrosting on Nanostructured Superhydrophobic Surfaces Boreyko, Jonathan B.; Srijanto, Bernadeta R.; Nguyen, Trung Dac Langmuir, Vol. 29, Issue 30 https://doi.org/10.1021/la401282c	journal	July 2013
Controlling Liquid Spreading Using Microfabricated Undercut Edges Liimatainen, Ville; Sariola, Veikko; Zhou, Quan Advanced Materials, Vol. 25, Issue 16 https://doi.org/10.1002/adma.201204696	journal	March 2013
Ionic Liquids Are Useful Contact Angle Probe Fluids Gao, Lichao; McCarthy, Thomas J. Journal of the American Chemical Society, Vol. 129, Issue 13 https://doi.org/10.1021/ja070169d	journal	April 2007
Self-Propelled Leidenfrost Droplets Linke, H.; Alemán, B. J.; Melling, L. D. Physical Review Letters, Vol. 96, Issue 15 https://doi.org/10.1103/PhysRevLett.96.154502	journal	April 2006
Directing Droplets Using Microstructured Surfaces ^† Shastry, Ashutosh; Case, Marianne J.; Böhringer, Karl F. Langmuir, Vol. 22, Issue 14 https://doi.org/10.1021/la0601657	journal	July 2006
Transport of a soft cargo on a nanoscale ratchet Sekeroglu, Koray; Gurkan, Umut A.; Demirci, Utkan Applied Physics Letters, Vol. 99, Issue 6, Article No. 063703 https://doi.org/10.1063/1.3625430	journal	August 2011
Moving droplets on asymmetrically structured surfaces Sandre, O.; Gorre-Talini, L.; Ajdari, A. Physical Review E, Vol. 60, Issue 3 https://doi.org/10.1103/PhysRevE.60.2964	journal	September 1999
Advancing and Receding Motion of Droplets on Ultrahydrophobic Post Surfaces Dorrer, Christian; Rühe, Jürgen Langmuir, Vol. 22, Issue 18 https://doi.org/10.1021/la061452d	journal	August 2006
Sub-10 nm structures on silicon by thermal dewetting of platinum Strobel, Sebastian; Kirkendall, Christopher; Chang, Jae-Byum Nanotechnology, Vol. 21, Issue 50 https://doi.org/10.1088/0957-4484/21/50/505301	journal	November 2010
Contact Angle Hysteresis Generated by Strong Dilute Defects ^† Reyssat, Mathilde; Quéré, David The Journal of Physical Chemistry B, Vol. 113, Issue 12 https://doi.org/10.1021/jp8066876	journal	March 2009
Reversible Electrowetting of Vertically Aligned Superhydrophobic Carbon Nanofibers Dhindsa, Manjeet S.; Smith, Neil R.; Heikenfeld, Jason Langmuir, Vol. 22, Issue 21 https://doi.org/10.1021/la061139b	journal	October 2006
Ratchet-like topological structures for the control of microdrops Buguin, A.; Talini, L.; Silberzan, P. Applied Physics A, Vol. 75, Issue 2 https://doi.org/10.1007/s003390201322	journal	August 2002
Designing Superoleophobic Surfaces Tuteja, A.; Choi, W.; Ma, M. Science, Vol. 318, Issue 5856, p. 1618-1622 https://doi.org/10.1126/science.1148326	journal	December 2007
Ratchetlike Motion of a Shaken Drop Noblin, Xavier; Kofman, Richard; Celestini, Franck Physical Review Letters, Vol. 102, Issue 19 https://doi.org/10.1103/PhysRevLett.102.194504	journal	May 2009
How to Make Water Run Uphill Chaudhury, M. K.; Whitesides, G. M. Science, Vol. 256, Issue 5063 https://doi.org/10.1126/science.256.5063.1539	journal	June 1992
Tuning Drop Motion by Chemical Patterning of Surfaces Varagnolo, S.; Schiocchet, V.; Ferraro, D. Langmuir, Vol. 30, Issue 9 https://doi.org/10.1021/la404502g	journal	February 2014
Contact Angle Hysteresis on Superhydrophobic Surfaces: An Ionic Liquid Probe Fluid Offers Mechanistic Insight Krumpfer, Joseph W.; Bian, Pei; Zheng, Peiwen Langmuir, Vol. 27, Issue 6 https://doi.org/10.1021/la105068c	journal	March 2011
Directional water collection on wetted spider silk Zheng, Yongmei; Bai, Hao; Huang, Zhongbing Nature, Vol. 463, Issue 7281 https://doi.org/10.1038/nature08729	journal	February 2010
Drops onto gradients of texture Reyssat, M.; Pardo, F.; Quéré, D. EPL (Europhysics Letters), Vol. 87, Issue 3 https://doi.org/10.1209/0295-5075/87/36003	journal	August 2009

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asymmetric contact angle hysteresis
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ionic liquid
superhydrophobic
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Length scale selects directionality of droplets on vibrating pillar ratchet

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