. En-Évidence-par-dorrer and . Rühe, il semblerait que la ligne de contact explore les bords des trous comme des défauts sur lesquels elle s'accroche, et étant donné leur grande taille (ils sont dix fois plus larges que les plots) l'adhésion est élevée. On constate d'ailleurs que dans le cas des trous, ?cos? semble décroître quand ? augmente, or sur des surfaces couvertes de micropiliers l'inverse est observé [79]. Ceci confirmerait le scénario ci-dessus. Il serait alors intéressant de comparer cette hystérésis à celle créée par le négatif des surfaces à trou utilisées ici

J. M. Bibliographie1, T. T. Aristoff, A. H. Truscott, J. W. Techet, and . Bush, The water entry of decelerating spheres, Physics of Fluids, vol.22, issue.3, p.32102, 2010.

J. M. Aristoff and J. W. Bush, Water entry of small hydrophobic spheres, Journal of Fluid Mechanics, vol.34, p.45, 2009.
DOI : 10.1146/annurev.fluid.38.050304.092157

A. Balmert, H. F. Bohn, P. Ditsche-kuru, and W. Barthlott, Dry under water: Comparative morphology and functional aspects of air-retaining insect surfaces, Journal of Morphology, vol.77, issue.4, pp.442-451, 2011.
DOI : 10.1002/jmor.10921

W. Barthlott and C. Neinhuis, Purity of the sacred lotus, or escape from contamination in biological surfaces, Planta, vol.202, issue.1, pp.1-8, 1997.
DOI : 10.1007/s004250050096

W. Barthlott, T. Schimmel, S. Wiersch, K. Koch, M. Brede et al., The Salvinia Paradox: Superhydrophobic Surfaces with Hydrophilic Pins for Air Retention Under Water, Advanced Materials, vol.23, issue.21, pp.222325-2328, 2010.
DOI : 10.1002/adma.200904411

D. Bartolo, . Bouamrirene, . Verneuil, . Buguin, S. Silberzan et al., Bouncing or sticky droplets: Impalement transitions on superhydrophobic micropatterned surfaces, Europhysics Letters (EPL), vol.74, issue.2, pp.299-305, 2006.
DOI : 10.1209/epl/i2005-10522-3

D. Bartolo, C. Josserand, and D. Bonn, Retraction dynamics of aqueous drops upon impact on non-wetting surfaces, Journal of Fluid Mechanics, vol.545, issue.-1, p.329, 2005.
DOI : 10.1017/S0022112005007184

V. Nelson-rei-bernardino, S. Blickle, and . Dietrich, Wetting of Surfaces Covered by Elastic Hairs, Langmuir, vol.26, issue.10, pp.7233-7241, 2010.
DOI : 10.1021/la904345r

J. Bico, C. Marzolin, and D. Quéré, Pearl drops, Europhysics Letters (EPL), vol.47, issue.2, p.220, 1999.
DOI : 10.1209/epl/i1999-00548-y

J. Bico, U. Thiele, and D. Quéré, Wetting of textured surfaces, Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.206, issue.1-3, pp.41-46, 2002.
DOI : 10.1016/S0927-7757(02)00061-4

B. Jonathan, C. Boreyko, and . Chen, Restoring superhydrophobicity of lotus leaves with vibration-induced dewetting. Physical review letters, p.174502, 2009.

B. Jonathan, C. Boreyko, and . Collier, Delayed frost growth on jumping-drop superhydrophobic surfaces, ACS nano, vol.7, issue.2, pp.1618-1627, 2013.

W. Bouwhuis, C. Roeland, T. Van-der-veen, . Tran, L. Diederik et al., Maximal air bubble entrainment at liquid-drop impact. Physical review letters, p.264501, 2012.
DOI : 10.1103/physrevlett.109.264501
URL : http://arxiv.org/abs/1205.4761

M. Camacho-lopez, H. Finkelmann, P. Palffy-muhoray, and M. Shelley, Fast liquid-crystal elastomer swims into the dark, Nature Materials, vol.3, issue.5, pp.307-310, 2004.
DOI : 10.1038/nmat1118

A. Cassie, Contact angles, Discussions of the Faraday Society, vol.3, pp.11-16, 1948.
DOI : 10.1039/df9480300011

A. Cassie and S. Baxter, Wettability of porous surfaces. Transactions of the Faraday Society, pp.546-551, 1944.

Z. Cerman, F. Boris, W. Striffler, and . Barthlott, Dry in the Water: The Superhydrophobic Water Fern Salvinia ??? a Model for Biomimetic Surfaces, Functional surfaces in biology, pp.97-111, 2009.
DOI : 10.1007/978-1-4020-6697-9_7

S. Chandrasekhar, Hydrodynamics and hydrodynamic stability, p.652, 1961.

Y. Chen and A. Pepin, Nanofabrication: Conventional and nonconventional methods, ELECTROPHORESIS, vol.101, issue.110, pp.187-207, 2001.
DOI : 10.1002/1522-2683(200101)22:2<187::AID-ELPS187>3.0.CO;2-0

Y. Chuang, C. Chu, S. Lin, and L. Chen, Evaporation of water droplets on soft patterned surfaces, Soft Matter, vol.29, issue.1, pp.3394-3403, 2014.
DOI : 10.1039/c3sm52719k

P. Gennes, Wetting: statics and dynamics, Reviews of Modern Physics, vol.57, issue.3, p.827, 1985.
DOI : 10.1103/RevModPhys.57.827

T. Deng, K. Kripa, M. Varanasi, N. Hsu, C. Bhate et al., Nonwetting of impinging droplets on textured surfaces, Applied Physics Letters, vol.94, issue.13, p.94133109, 2009.
DOI : 10.1063/1.3110054

C. Dorrer and J. Rühe, Micro to nano: Surface size scale and superhydrophobicity, Beilstein Journal of Nanotechnology, vol.2, issue.1, pp.327-332, 2011.
DOI : 10.3762/bjnano.2.38
URL : http://doi.org/10.3762/bjnano.2.38

V. Duclaux, F. Caille, C. Duez, C. Ybert, L. Bocquet et al., Dynamics of transient cavities, Journal of Fluid Mechanics, vol.XXXIV, pp.1-19, 2007.
DOI : 10.1103/PhysRevLett.93.198003
URL : https://hal.archives-ouvertes.fr/hal-00453628

C. Duez, C. Ybert, C. Clanet, and L. Bocquet, Making a splash with water repellency, Nature Physics, vol.12, issue.3, pp.180-183, 2007.
DOI : 10.1209/epl/i2005-10068-4

D. Duffy, J. Mcdonald, O. J. Schueller, and G. Whitesides, Rapid Prototyping of Microfluidic Systems in Poly(dimethylsiloxane) Analytical chemistry, pp.4974-84, 1998.

R. Ege, On the respiratory function of the air stores carried by some aquatic insects (corixidae, dytiscidae and notonecta), 30] S Farhadi, M Farzaneh, and SA Kulinich. Anti-icing performance of superhydrophobic surfaces, pp.81-125, 1915.

M. R. Flynn and J. W. Bush, Underwater breathing: the mechanics of plastron respiration, Journal of Fluid Mechanics, vol.5, pp.275-296, 2008.
DOI : 10.1021/la034961d

D. Fuard, T. Tzvetkova-chevolleau, S. Decossas, P. Tracqui, and P. Schiavone, Optimization of poly-di-methyl-siloxane (PDMS) substrates for studying cellular adhesion and motility, Microelectronic Engineering, vol.85, issue.5-6
DOI : 10.1016/j.mee.2008.02.004
URL : https://hal.archives-ouvertes.fr/hal-00291575

X. Gao and L. Jiang, Biophysics: Water-repellent legs of water striders, Nature, vol.32, issue.7013, pp.36-36, 2004.
DOI : 10.1039/tf9444000546

X. Gao, X. Yan, X. Yao, L. Xu, K. Zhang et al., The Dry-Style Antifogging Properties of Mosquito Compound Eyes and Artificial Analogues Prepared by Soft Lithography, Advanced Materials, vol.11, issue.17, pp.2213-2217, 2007.
DOI : 10.1002/adma.200601946

J. W. Glasheen and T. A. Mcmahon, Vertical water entry of disks at low Froude numbers, Physics of Fluids, vol.8, issue.8, p.2078, 1996.
DOI : 10.1063/1.869010

M. Guémas, G. Álvaro, D. Marín, and . Lohse, Drop impact experiments of non-Newtonian liquids on micro-structured surfaces, Soft Matter, vol.38, issue.1, pp.10725-10731, 2012.
DOI : 10.1039/c2sm26230d

G. Hartley and R. Brunskill, Reflection of water drops from surfaces. Surface phenomena in chemistry and biology, 1958.

C. W. Heckman, Comparative Morphology of Arthropod Exterior Surfaces with the Capability of Binding a Film of Air Underwater. Internationale Revue der gesamten Hydrobiologie und Hydrographie, pp.715-736, 1983.

. Hergé, On a marché sur la Lune. Les aventures de Tintin, 1954.

H. Hinton, Plastron respiration in bugs and beetles, Journal of Insect Physiology, vol.22, issue.11, pp.1529-1550, 1976.
DOI : 10.1016/0022-1910(76)90221-3

H. Hinton and G. Jarman, A diffusion equation for tapered plastrons, Journal of Insect Physiology, vol.22, issue.9, pp.1263-1265, 1976.
DOI : 10.1016/0022-1910(76)90104-9

L. David, B. Hu, . Chan, W. John, and . Bush, The hydrodynamics of water strider locomotion, Nature, vol.424, issue.6949, pp.663-666, 2003.

C. Ishino, D. Okumura, and . Quéré, Wetting transitions on rough surfaces, Europhysics Letters (EPL), vol.68, issue.3, p.419, 2004.
DOI : 10.1209/epl/i2004-10206-6

J. F. Joanny and P. G. De-gennes, A model for contact angle hysteresis, The Journal of Chemical Physics, vol.81, issue.1, p.552, 1984.
DOI : 10.1063/1.447337

R. Johnson and R. Dettre, Contact angle, wettability, and adhesion Advances in chemistry series, p.112, 1964.

S. Kehl and K. Dettner, Surviving submerged-Setal tracheal gills for gas exchange in adult rheophilic diving beetles, Journal of Morphology, vol.13, issue.11, pp.1348-1355, 2009.
DOI : 10.1002/jmor.10762

B. Joseph and . Keller, Surface tension force on a partly submerged body, Physics of Fluids, vol.10, issue.11, pp.3009-3010, 1994.

N. Tom, A. Krupenkin, . Taylor, N. Evelyn, P. Wang et al., Reversible wetting-dewetting transitions on electrically tunable superhydrophobic nanostructured surfaces, Langmuir, vol.23, issue.18, pp.9128-9133, 2007.

S. Kulinich, . Farhadi, X. Nose, and . Du, Superhydrophobic Surfaces: Are They Really Ice-Repellent?, Langmuir, vol.27, issue.1, pp.25-29, 2010.
DOI : 10.1021/la104277q

D. Hee-kwon and S. Lee, Impact and wetting behaviors of impinging microdroplets on superhydrophobic textured surfaces, Applied Physics Letters, vol.100, issue.17, p.171601, 2012.
DOI : 10.1063/1.4705296

A. Lafuma and D. Quéré, Superhydrophobic states, Nature Materials, vol.2, issue.7, pp.457-460, 2003.
DOI : 10.1038/nmat924

J. Lahann, S. Mitragotri, T. Tran, H. Kaido, J. Sundaram et al., A Reversibly Switching Surface, Science, vol.299, issue.5605, pp.299371-374, 2003.
DOI : 10.1126/science.1078933

L. Landau and E. Lifshitz, Theory of elasticity, Course of Theoretical Physics, 1986.

P. Laplace, Theory of capillary attraction. Supplements to the 10th book of Celestial Mechanics, 1807.

. Iain-a-larmour, E. Steven, . Bell, C. Graham, and . Saunders, Remarkably simple fabrication of superhydrophobic surfaces using electroless galvanic deposition, Angewandte Chemie, issue.10, pp.461710-461712, 2007.

C. Li, R. Guo, X. Jiang, S. Hu, L. Li et al., Reversible Switching of Water-Droplet Mobility on a Superhydrophobic Surface Based on a Phase Transition of a Side-Chain Liquid-Crystal Polymer, Advanced Materials, vol.34, issue.42
DOI : 10.1002/adma.200900903

M. Li and P. Keller, Artificial muscles based on liquid crystal elastomers, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol.42, issue.6954, pp.2763-2777, 1847.
DOI : 10.1038/425145a

D. Ho-sun-lim, D. Y. Kwak, . Lee, K. Seung-goo-lee, and . Cho, UV-driven reversible switching of a roselike vanadium oxide film between superhydrophobicity and superhydrophilicity, Journal of the American Chemical Society, vol.129, issue.14, pp.4128-4137, 2007.

J. Malm, E. Sahramo, M. Karppinen, R. H. Ras, P. Michael et al., Photo-Controlled Wettability Switching by Conformal Coating of Nanoscale Topographies with Ultrathin Oxide Films Events before droplet splashing on a solid surface, Chemistry of Materials Journal of Fluid Mechanics, vol.22, issue.647, pp.3349-3352163, 2010.

G. Manukyan, J. M. Oh, D. Van-den-ende, R. G. Lammertink, and F. Mugele, Electrical Switching of Wetting States on Superhydrophobic Surfaces: A Route Towards Reversible Cassie-to-Wenzel Transitions, Physical Review Letters, vol.106, issue.1, p.14501, 2011.
DOI : 10.1103/PhysRevLett.106.014501

G. Philip, . Matthews, S. Roger, and . Seymour, Diving insects boost their buoyancy bubbles, Nature, issue.7090, pp.441171-171, 2006.

H. Miyazaki, Mizugumo Monmon. Studio Ghibli, 2006.

A. Nakajima, K. Hashimoto, and T. Watanabe, Recent Studies on Super-Hydrophobic Films, Monatshefte fuer Chemie/Chemical Monthly, vol.132, issue.1, pp.31-41, 2001.
DOI : 10.1007/s007060170142

C. Neinhuis and W. Barthlott, Characterization and Distribution of Water-repellent, Self-cleaning Plant Surfaces, Annals of Botany, vol.79, issue.6, pp.667-677, 1997.
DOI : 10.1006/anbo.1997.0400

A. Neumann, Contact angles and their temperature dependence : thermodynamic status , measurement, interpretation and application Advances in colloid and interface science, pp.105-191, 1974.

A. Otten and S. Herminghaus, How Plants Keep Dry:?? A Physicist's Point of View, Langmuir, vol.20, issue.6, pp.2405-2408, 2004.
DOI : 10.1021/la034961d

P. Papadopoulos, L. Mammen, X. Deng, D. Vollmer, and H. Butt, How superhydrophobicity breaks down, Proceedings of the National Academy of Sciences, pp.3254-3258, 2013.
DOI : 10.1073/pnas.1218673110

A. Neelesh and . Patankar, On the modeling of hydrophobic contact angles on rough surfaces, Langmuir, vol.19, issue.4, pp.1249-1253, 2003.

A. Neelesh and . Patankar, Transition between superhydrophobic states on rough surfaces, Langmuir, vol.20, issue.17, pp.7097-7102, 2004.

K. Piroird, C. Clanet, and D. Quéré, Capillary Extraction, Langmuir, vol.27, issue.15, pp.9396-9402, 2011.
DOI : 10.1021/la201490m
URL : https://hal.archives-ouvertes.fr/hal-00997968

Y. Pomeau and J. Vannimenus, Contact angle on heterogeneous surfaces: Weak heterogeneities, Journal of Colloid and Interface Science, vol.104, issue.2, pp.477-488, 1985.
DOI : 10.1016/0021-9797(85)90055-4

D. Quéré, Non-sticking drops, Reports on Progress in Physics, vol.68, issue.11, p.2495, 2005.
DOI : 10.1088/0034-4885/68/11/R01

D. Quéré, A. Lafuma, and J. Bico, Slippy and sticky microtextured solids, Nanotechnology, vol.14, issue.10, p.1109, 2003.

H. Rahn, V. Charles, and . Paganelli, Gas exchange in gas gills of diving insects, Respiration Physiology, vol.5, issue.1, pp.145-164, 1968.
DOI : 10.1016/0034-5687(68)90083-2

M. Reyssat, D. Pardo, and . Quéré, Drops onto gradients of texture, EPL (Europhysics Letters), vol.87, issue.3, p.36003, 2009.
DOI : 10.1209/0295-5075/87/36003

M. Reyssat, . Pépin, . Marty, D. Chen, and . Quéré, Bouncing transitions on microtextured materials, Europhysics Letters (EPL), vol.74, issue.2, pp.306-312, 2006.
DOI : 10.1209/epl/i2005-10523-2

M. Reyssat, D. Yeomans, and . Quéré, Impalement of fakir drops, EPL (Europhysics Letters), vol.81, issue.2, p.26006, 2008.
DOI : 10.1209/0295-5075/81/26006

M. and C. Reyssat, Splendeur et misère de l'effet lotus, 2007.

D. Richard, Situations de mouillage nul, 2000.

D. Richard and D. Quéré, Bouncing water drops, Europhysics Letters (EPL), vol.50, issue.6, p.769, 2000.
DOI : 10.1209/epl/i2000-00547-6
URL : https://hal.archives-ouvertes.fr/hal-00014836

D. Richard, C. Clanet, and D. Quéré, Contact time of a bouncing drop, Nature, issue.6891, p.417811, 2002.

J. San-lee, J. Byung-mook-weon, K. Ho-je, and . Fezzaa, How does an air film evolve into a bubble during drop impact ? Physical review letters, p.204501, 2012.

A. Sánchez-ferrer, T. Fischl, M. Stubenrauch, H. Wurmus, M. Hoffmann et al., Photo-Crosslinked Side-Chain Liquid-Crystalline Elastomers for Microsystems, Macromolecular Chemistry and Physics, vol.94, issue.20, pp.1671-1677, 2009.
DOI : 10.1002/macp.200900308

D. Schütz and M. Taborsky, Adaptations to an aquatic life may be responsible for the reversed sexual size dimorphism in the water spider, argyroneta aquatica, Evolutionary ecology research, vol.5, pp.105-117, 2003.

D. Schütz, M. Taborsky, and T. Drapela, Air bells of water spiders are an extended phenotype modified in response to gas composition, Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, vol.20, issue.10, pp.549-555, 2007.
DOI : 10.1002/jez.410

J. Seiwert, C. Clanet, and D. Quéré, Coating of a textured solid, Journal of Fluid Mechanics, vol.39, pp.55-63, 2011.
DOI : 10.1021/la961020a
URL : https://hal.archives-ouvertes.fr/hal-00997969

S. Roger, . Seymour, K. Stefan, and . Hetz, The diving bell and the spider : the physical gill of Argyroneta aquatica, The Journal of experimental biology, vol.214, pp.2175-81, 2011.

M. Jane, . Shaw, D. Jeffrey, . Gelorme, C. Nancy et al., Negative photoresists for optical lithography, IBM Journal of Research and Development, vol.41, issue.12, pp.81-94, 1997.

J. Neil, G. Shirtcliffe, . Mchale, I. Michael, C. C. Newton et al., Plastron properties of a superhydrophobic surface Applied Physics Letters, pp.104106-5868, 2001.

W. Thorpe, Plastron respiration in aquatic insects Biological reviews of the Cambridge Philosophical Society, pp.344-90, 1950.

W. Thorpe and D. Crisp, Studies on plastron respiration ii. the respiratory efficiency of the plastron in aphelocheirus, Journal of Experimental Biology, vol.24, issue.3-4, pp.270-303, 1947.

W. Thorpe and D. Crisp, Studies on plastron respiration iii. the orientation responses of aphelocheirus [hemiptera, aphelocheiridae (naucoridae)] in relation to plastron respiration ; together with an account of specialized pressure receptors in aquatic insects, Journal of Experimental Biology, vol.24, pp.3-4310, 1947.

W. Homan, T. , and D. Crisp, Studies on plastron respiration i. the biology of aphelocheirus [hemiptera, aphelocheiridae (naucoridae)] and the mechanism of plastron retention, Journal of Experimental Biology, vol.24, pp.3-4227, 1947.

S. Timoshenko, S. Woinowsky-krieger, and S. Woinowsky-krieger, Theory of plates and shells, 1959.

S. Tomotika, On the Instability of a Cylindrical Thread of a Viscous Liquid Surrounded by Another Viscous Fluid, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol.150, issue.870, pp.322-337, 1935.
DOI : 10.1098/rspa.1935.0104

P. Tourkine, M. L. Merrer, and D. Quéré, Delayed Freezing on Water Repellent Materials, Langmuir, vol.25, issue.13, pp.7214-7216, 2009.
DOI : 10.1021/la900929u
URL : https://hal.archives-ouvertes.fr/hal-01021130

P. Tsai, G. Rob, M. Lammertink, D. Wessling, and . Lohse, Evaporationtriggered wetting transition for water droplets upon hydrophobic microstructures. Physical review letters, p.116102, 2010.

C. Roeland, . Van-der-veen, H. Maurice, T. Hendrix, C. Tran et al., How microstructures affect air film dynamics prior to drop impact, Soft matter, vol.10, issue.21, pp.3703-3707, 2014.

T. Verho, T. Juuso, L. Korhonen, V. Sainiemi, C. Jokinen et al., Reversible switching between superhydrophobic states on a hierarchically structured surface, Proceedings of the National Academy of Sciences, pp.10210-10213, 2012.
DOI : 10.1073/pnas.1204328109

T. Wagner, C. Neinhuis, and W. Barthlott, Wettability and Contaminability of Insect Wings as a Function of Their Surface Sculptures, Acta Zoologica, vol.24, issue.3, pp.213-225, 1996.
DOI : 10.1111/j.1463-6395.1996.tb01265.x

W. Edward and . Washburn, The dynamics of capillary flow, p.273, 1921.

N. Robert and . Wenzel, Resistance of solid surfaces to wetting by water, Industrial & Engineering Chemistry, vol.28, issue.8, pp.988-994, 1936.

N. Robert and . Wenzel, Surface roughness and contact angle, The Journal of Physical Chemistry, vol.53, issue.9, pp.1466-1467, 1949.

M. Katrina, . Wisdom, A. Jolanta, X. Watson, F. Qu et al., Self-cleaning of superhydrophobic surfaces by self-propelled jumping condensate, Proceedings of the National Academy of Sciences, pp.7992-7997, 2013.

A. Worthington, On the Forms Assumed by Drops of Liquids Falling Vertically on a Horizontal Plate, Proceedings of the royal society of London, pp.171-178261, 1876.
DOI : 10.1098/rspl.1876.0048

A. Worthington, A Second Paper on the Forms Assumed by Drops of Liquids Falling Vertically on a Horizontal Plate., Proceedings of the Royal Society of London, vol.25, issue.171-178, pp.171-178498, 1876.
DOI : 10.1098/rspl.1876.0073

Z. Liang-wu, A. Buguin, H. Yang, J. Taulemesse, N. L. Moigne et al., Microstructured Nematic Liquid Crystalline Elastomer Surfaces with Switchable Wetting Properties, Advanced Functional Materials, vol.23, issue.24, pp.3070-3076, 2013.

Z. Liang-wu, R. Wei, A. Buguin, J. Taulemesse, N. L. Moigne et al., Stimuli-responsive topological change of microstructured surfaces and the resultant variations of wetting properties, ACS applied materials & interfaces, vol.5, issue.15, pp.7485-91, 2013.

F. Xia, Y. Zhu, L. Feng, and L. Jiang, Smart responsive surfaces switching reversibly between super-hydrophobicity and super-hydrophilicity, Soft Matter, vol.18, issue.2, p.275, 2009.
DOI : 10.1039/B803951H

Y. Yeh, K. Cho, and L. Chen, Effect of softness of polydimethylsiloxane on the hydrophobicity of pillar-like patterned surfaces, Soft Matter, vol.2, issue.1, pp.1079-1086, 2012.
DOI : 10.1039/C1SM06649H

T. Young, An essay on the cohesion of fluids, Philosophical Transactions of the Royal Society of London, pp.65-87