Superhydrophobic Behavior of a Perfluoropolyether Lotus-Leaf-like Topography

Zhang, Lei; Zhou, Zhilian; Cheng, Bin; DeSimone, Joseph M.; Samulski, Edward T.

doi:10.1021/la061400o

Cited by 215 publications

(160 citation statements)

References 54 publications

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“…Others have focused on a toolbox of methods for creating these materials. A variety of superhydrophobic surfaces obtained using dry methods such as plasma modification, 26,40 laser etching, 41 and templating 42 and wet methods such as layer-by-layer deposition, 43 colloidal assembly, 44 electrospinning, [45][46][47] and solvent evaporation 48 have been reported.…”

Section: Discussionmentioning

confidence: 99%

“…The addition of self-healing functionality to polymers provides a novel solution to this long-standing problem 36 (c) water strider leg nanogrooves, 36 and (d) lotus leaf. 13 (e-g) Synthetic superhydrophobic structures: (e) photolithographed posts, 33 (f) templated polymers nanofibers, 42 and (g) solvent structured surface. 48 and represents the first step in the development of materials systems with greatly extended lifetimes.…”

Section: Self-healing Polymersmentioning

confidence: 99%

See 1 more Smart Citation

Bioinspired Materials for Self-Cleaning and Self-Healing

Youngblood¹,

Sottos²

2008

MRS Bull.

110

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Biological systems have the ability to sense, react, regulate, grow, regenerate, and heal. Recent advances in materials chemistry and micro-and nanoscale fabrication techniques have enabled biologically inspired materials systems that mimic many of these remarkable functions. This issue of MRS Bulletin highlights two promising classes of bioinspired materials systems: surfaces that can self-clean and polymers that can self-heal. Self-cleaning surfaces are based on the superhydrophobic effect, which causes water droplets to roll off with ease, carrying away dirt and debris. Design of these surfaces is inspired by the hydrophobic micro-and nanostructures of a lotus leaf. Self-healing materials are motivated by biological systems in which damage triggers a site-specific, autonomic healing response. Self-healing has been achieved using several different approaches for storing and triggering healing functionality in the polymer. In this issue, we examine the most successful strategies for self-cleaning and self-healing materials and discuss future research directions and opportunities for commercial applications. Bioinspired Materialsfor Self-Cleaning and Self-Healing Jeffrey P. Youngblood and Nancy R. Sottos, Guest Editors water droplets. 11-13 Self-healing materials are inspired by living systems in which minor damage (e.g., a contusion or bruise) triggers an autonomic healing response. Successful healing relies on seamless integration of reactive chemical functionality into a polymer or polymer composite at the microscale, nanoscale, or molecular level. Although these two functions are quite different, together they represent the wide range of autonomic responses achievable through bioinspired design. In this article, we separately introduce the key elements of self-cleaning and self-healing materials systems and identify the scientific challenges and successful strategies for continued advancement of these nascent fields. Self-Cleaning SurfacesInterest in self-cleaning surfaces has been rekindled because of the newfound ability to structure surfaces on the submicron scale over large planar areas relevant to macroscale wetting. These structured surfaces allow the so-called "lotus-leaf effect," whereby water droplets are shed easily from certain structures, carrying away dirt and other debris. 11-13 Such bioinspired topographical methods toward self-cleaning are the focus of this review.

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Section: Discussionmentioning

confidence: 99%

Section: Self-healing Polymersmentioning

confidence: 99%

Bioinspired Materials for Self-Cleaning and Self-Healing

Youngblood¹,

Sottos²

2008

MRS Bull.

110

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“…To obtain polymer regular micro/ nano geometric surfaces, various nanoprocessing approaches can be employed, including nanoporous template wetting [15], capillary lithography [16], nanoimprint lithography [17], microstereolithography [18], template rolling press [19], and water spreading of carbon nanotubes [20]. A number of theoretical and experimental studies indicated that polymer aligned nanopillar arrays or carbon nanotube arrays could exhibit hydrophobic or surperhydrophobic feature [21][22][23][24]. As important as enhancing hydrophobicity of polymer surfaces, controlling hydrophilicity of polymer surfaces is also an interesting issue because most polymers are hydrophobic in nature that makes them unsuitable for important biomedical and industrial applications [25].…”

Section: Introductionmentioning

confidence: 99%

Wettability transition of plasma-treated polystyrene micro/nano pillars-aligned patterns

Kong¹,

Yung²,

Xu³

et al. 2010

Express Polym. Lett.

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Abstract. This paper reports the wettability transition of plasma-treated polystyrene (PS) micro/nano pillars-aligned patterns. The micro/nano pillars were prepared using hot embossing on silicon microporous template and alumina nanoporous template, which were fabricated by ultraviolet (UV) lithography and inductive coupled plasma (ICP) etching, and two-step anodic oxidation, respectively. The results indicate that the combination of micro/nano patterning and plasma irradiation can easily regulate wettabilities of PS surfaces, i.e. from hydrophilicity to hydrophobicity, or from hydrophobicity to superhydrophilicity. During the wettability transition from hydrophobicity to hydrophilicity there is only mild hydrophilicity loss. After plasma irradiation, moreover, the wettability of PS micro/nano pillars-aligned patterns is more stable than that of flat PS surfaces. The observed wettability transition and wettability stability of PS micro/nano pillars-aligned patterns are new phenomena, which may have potential in creating programmable functional polymer surfaces.

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“…the water strider Notonecta glauca 9,10 . Fabrication of superhydrophobic materials usually require initial structuring with a hierarchical micro and nanopattern to increase surface roughness, 11,12 and a subsequent coating with low surface energy chemistry 13,14 . The surface coating does however represent at least one extra fabrication step and is best suited for coating of solid surfaces, such as that of Si with perfluorodecyltrichlorosilane (FDTS).…”

mentioning

confidence: 99%

Superhydrophobic Properties of Nanotextured Polypropylene Foils Fabricated by Roll-to-Roll Extrusion Coating

et al. 2016

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We demonstrate the use of roll-to-roll extrusion coating (R2R-EC) for fabrication of nanopatterned polypropylene (PP) foils with strong antiwetting properties. The antiwetting nanopattern is originated from textured surfaces fabricated on silicon wafers by a single-step method of reactive ion etching with different processing gas flow rates. We provide a systematic study of the wetting properties for the fabricated surfaces and show that a controlled texture stretching effect in the R2R-EC process is instrumental to yield the superhydrophobic surfaces with water contact angles approaching 160° and droplet roll-off angles below 10°.

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Superhydrophobic Behavior of a Perfluoropolyether Lotus-Leaf-like Topography

Cited by 215 publications

References 54 publications

Bioinspired Materials for Self-Cleaning and Self-Healing

Bioinspired Materials for Self-Cleaning and Self-Healing

Wettability transition of plasma-treated polystyrene micro/nano pillars-aligned patterns

Superhydrophobic Properties of Nanotextured Polypropylene Foils Fabricated by Roll-to-Roll Extrusion Coating

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