Free-decay and resonant methods for investigating the fundamental limit of superhydrophobicity

Timonen, Jaakko V. I.; Latikka, Mika; Ikkala, Olli; Ras, Robin H. A.

doi:10.1038/ncomms3398

Cited by 87 publications

(110 citation statements)

References 52 publications

(54 reference statements)

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“…All syntheses were reported to work at or close to room temperature. With few exceptions [16,[60][61][62], all syntheses were carried at normal pressure.…”

Section: Discussion Of Synthetic Aspectsmentioning

confidence: 99%

“…The oxidation of the 1D-SNF can be performed within minutes by treatment in oxygen plasma [35,41,42], water plasma [29] or oxygen / hydrogen plasma [60][61][62]. The oxidation of the organic residues of polysiloxanes leads to a silica-like surface containing hydroxyl groups [79].…”

Section: Oxidationmentioning

confidence: 99%

“…This effect was exploited for the investigations of the static and dynamic self-assembly of magnetic droplets on superhydrophobic surfaces. The same surfaces were also used for the investigation of the dissipation of energy of magnetically manipulated droplets on superhydrophobic surfaces [62].…”

Section: Water Repellencymentioning

confidence: 99%

“…Also, an argon atmosphere at a pressure of 167 mbar [10,16,22] or pure gaseous water and silane are used [60][61][62]. The necessary amount of water in the reaction chamber is adjusted using residual surface-adsorbed water [10], flushing the volume with humidified gas [8], evaporation of predefined volumes of water [16], aqueous sodium chloride solutions [9] or by exploiting the water naturally absorbed by cotton [30].…”

Section: Synthesis In the Gas Phasementioning

confidence: 99%

“…This is performed in solvents, alkaline or cleansing solutions with or without ultrasonication [8,11,13,16,18,24,41,43,56,63], activation in a plasma using oxygen [7-10, 16, 36, 57, 59] or a mixture of oxygen and hydrogen as process gas [60][61][62], treatment in strongly oxidising liquids such as a piranha solution [16,28,29], ozone in combination with UV-light [64], or combinations of these methods [12,[60][61][62]64]. Fabrics may be subjected to a specific procedure [30].…”

Section: Surface Activationmentioning

confidence: 99%

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One-dimensional silicone nanofilaments

Artus

Seeger

2014

Advances in Colloid and Interface Science

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A decade ago one-dimensional silicone nanofilaments (1D-SNF) such as fibres and wires were described for the first time. Since then, the exploration of 1D-SNF has led to remarkable advancements with respect to material science and surface science: one-, two-and three-dimensional nanostructures of silicone were unknown before. The discovery of silicone nanostructures marks a turning point in the research on the silicone material at the nanoscale. Coatings made of 1D-SNF are among the most superhydrophobic surfaces known today. They are free of fluorine, can be applied to a large range of technologically important materials and their properties can be modified chemically. This opens the way to many interesting applications such as water harvesting, superoleophobicity, separation of oil and water, patterned wettability and storage and manipulation of data on a surface. Because of their high surface area, coatings consisting of 1D-SNF are used for protein adsorption experiments and as carrier systems for catalytically active nanopartides. This paper reviews the current knowledge relating to the broad development of 1D-SNF technologies. Common preparation and coating techniques are presented along with a comparison and discussion of the published coating parameters to provide an insight on how these affect the topography of the 1D-SNF or coating. The proposed mechanisms of growth are presented, and their potentials and shortcomings are discussed. We introduce all explored applications and finally identify future prospects and potentials of 1D-SNF with respect to applications in material science and surface science.

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“…All syntheses were reported to work at or close to room temperature. With few exceptions [16,[60][61][62], all syntheses were carried at normal pressure.…”

Section: Discussion Of Synthetic Aspectsmentioning

confidence: 99%

Section: Oxidationmentioning

confidence: 99%

Section: Water Repellencymentioning

confidence: 99%

Section: Synthesis In the Gas Phasementioning

confidence: 99%

Section: Surface Activationmentioning

confidence: 99%

See 3 more Smart Citations

One-dimensional silicone nanofilaments

Artus

Seeger

2014

Advances in Colloid and Interface Science

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Semi‐Egg‐Like Heterogeneous Compartmentalization of Cells Controlled by Contact Angle Hysteresis

Sun

Liu

et al. 2015

Adv Funct Materials

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Precise control of liquid inside compartments is critically important in bioreactors, combinatorial analysis, and tissue engineering. A contact angle hysteresis (CAH)-based strategy is demonstrated to construct a semi-egg-like hydrogel architecture, leading to spatial heterogeneous compartmentalization of cells. The semi-egg-like architecture is fabricated by successively capturing and gelling prehydrogel liquids using a substrate with controlled-CAH pattern and ultralow-CAH background. The controlled-CAH pattern could capture liquid with tunable size, while ultralow-CAH background prevents liquid sticking. It is envisioned that this CAH-based strategy would be promising in designing functional surface for engineering complicated architectures of either biomedical or nonbiomedical systems.

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Dynamically Actuated Liquid‐Infused Poroelastic Film with Precise Control over Droplet Dynamics

Keplinger

Cui

et al. 2018

Adv Funct Materials

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Traditional dynamic adaptive materials rely on an atomic/molecular mechanism of phase transition to induce macroscopic switch of properties, but only a small number of these materials and a limited responsive repertoire are available. Here, liquid as the adaptive component is utilized to realize responsive functions. Paired with a porous matrix that can be put in motion by an actuated dielectric elastomer film, the uncontrolled global flow of liquid is broken down to well-defined reconfigurable localized flow within the pores and conforms to the network deformation. A detailed theoretical and experimental study of such a dynamically actuated liquid-infused poroelastic film is discussed. This system demonstrates its ability to generate tunable surface wettability that can precisely control droplet dynamics from complete pinning, to fast sliding, and even more complex motions such as droplet oscillation, jetting, and mixing. This system also allows for repeated and seamless switch among these different droplet manipulations. These are desired properties in many applications such as reflective display, lab-on-a-chip, optical device, dynamic measurements, energy harvesting, and others.has led to unprecedented capabilities such as autonomous actuation and sensing, [1,2] controlled release, [3] self-healing, [4] self-regulation, [5] self-reporting, [6] self-cleaning, [7] antifouling, [8] tunable optical properties, [9,10] and others. Such conventional materials with adaptive responses often rely on compounds with specific chemical properties that undergo various phase transitions at the atomic/molecular scale to enable macroscopic dynamic behavior in the form of piezoelectric, pyroelectric, electrochromic, shape memory effects, and so on. [11][12][13][14][15] The limited availability of the solids that undergo such atomic/ molecular transitions is a major constraint. Our quest for new dynamic adaptive materials has to go beyond the search for specific materials formulations and to adopt a bioinspired strategy of designing a hybrid materials system comprising a combination of multiple components responding to various stimuli with coupled energy transduction mechanisms across the system. [16][17][18] Moreover, different from traditional engineering materials that rely on carving, extruding, rolling, weaving, and molding of solids, Nature's tool box goes far beyond just a solid. Instead, Nature seamlessly and ubiquitously mixes and matches different solids and Droplet Dynamics

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Free-decay and resonant methods for investigating the fundamental limit of superhydrophobicity

Cited by 87 publications

References 52 publications

One-dimensional silicone nanofilaments

One-dimensional silicone nanofilaments

Semi‐Egg‐Like Heterogeneous Compartmentalization of Cells Controlled by Contact Angle Hysteresis

Dynamically Actuated Liquid‐Infused Poroelastic Film with Precise Control over Droplet Dynamics

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