Designing bioinspired superoleophobic surfaces
نویسندگان
چکیده
منابع مشابه
Designing superoleophobic surfaces.
Understanding the complementary roles of surface energy and roughness on natural nonwetting surfaces has led to the development of a number of biomimetic superhydrophobic surfaces, which exhibit apparent contact angles with water greater than 150 degrees and low contact angle hysteresis. However, superoleophobic surfaces-those that display contact angles greater than 150 degrees with organic li...
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This article describes the physics of superoleophobic surfaces, combining a recently developed free-energy approach and finite element modeling. We start by investigating the peculiar wetting behavior of such surfaces, originating in their “re-entrant” geometry, and discussing a specific mechanism for the “filling transition”, leading to the loss of superoleophobicity. We then focus on their fr...
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Bioactive surfaces that can prevent bacterial infections are of great interest since device-related infections represent an emerging and major threat to our health-care system. For that purpose, dopamine and its derivatives have been shown to provide an exceptionally facile method for the immobilization of bioactive compounds on metal oxide surfaces through an operationally simple dip-and-rinse...
متن کاملBioinspired surfaces with special wettability.
Biomimetic research indicates that many phenomena regarding wettability in nature, such as the self-cleaning effect on a lotus leaf and cicada wing, the anisotropic dewetting behavior on a rice leaf, and striking superhydrophobic force provided by a water strider's leg, are all related to the unique micro- and nanostructures on the surfaces. It gives us much inspiration to realize special wetta...
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The liquid repellency and surface topography characteristics of coatings comprising a sprayed-on mixture of fluoroalkyl-functional precipitated silica and a fluoropolymer binder were examined using contact and sliding angle analysis, electron microscopy, and image analysis for determination of fractal dimensionality. The coatings proved to be an especially useful class of liquid repellent mater...
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ژورنال
عنوان ژورنال: APL Materials
سال: 2016
ISSN: 2166-532X
DOI: 10.1063/1.4935126