Magnetic field actuated manipulation and transfer of oil droplets on a stable underwater superoleophobic surface

Feng, Haifeng; Xu, Xiaojing; Hao, Weichang; Du, Yi; Tian, Dongliang; Jiang, Lei

doi:10.1039/c6cp01419d

Cited by 20 publications

(14 citation statements)

References 32 publications

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“…Recently, Feng et al demonstrated a facile method for magnetic-field-driven manipulation and transport of oil-based magnetic fluids. 146 A ZnO nanorod array was grown on a glass substrate by a low-temperature hydrothermal method. The as-prepared ZnO nanoarrays consist of uniformly aligned nanorods with diameter of 150-250 nm and length of B6 mm.…”

Section: Magnetic Field Responsementioning

confidence: 99%

Superoleophobic surfaces

et al. 2017

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Superoleophobicity is a phenomenon where the contact angles of various oil droplets with low surface tension on a solid surface are larger than 150°. In the past few years, there has been much growing interest in the design and application of superoleophobic surfaces. Such surfaces have great significance for both fundamental research and a variety of practical applications, including oil-repellent coatings, self-cleaning, oil/water separation, oil droplet manipulation, chemical shielding, anti-blocking, designing liquid microlens, oil capture, bioadhesion, guiding oil movement and floating on oil. Herein, we systematically summarize the recent developments of superoleophobic surfaces. This review focuses on the design, fabrication, characteristics, functions, and important applications of various superoleophobic surfaces. Although many significant advances have been achieved, superoleophobic surfaces are still in their "toddler stage" of development. The current challenges and future prospects of this fast-growing field of superoleophobicity are discussed.

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Section: Magnetic Field Responsementioning

confidence: 99%

Superoleophobic surfaces

et al. 2017

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“…For example, a series of bioinspired surfaces with micro/nanostructures show superoleophobic and low adhesive properties. In addition, stimulus responsive surfaces (e.g., magnetic, electric, and pH) exhibit tunable underwater oil adhesion. For instance, the nanostructured poly(acrylic acid) surface shows pH‐dependent oil‐adhesion with high adhesive force about 21.6 µN at pH 1 and low adhesive force zero at pH 12 61b.…”

Section: Fundamental Models and Measuring Instruments Of Surface Adhementioning

confidence: 99%

Bioinspired Multiscale Wet Adhesive Surfaces: Structures and Controlled Adhesion

Chen

Meng

et al. 2019

Adv Funct Materials

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180

133

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In nature, many organisms are able to accommodate a complex living environment by developing biological wet adhesive surfaces with unique functions such as fixation and predation. Significantly, most of these outstanding functions originate from the specialized micro/nanostructures and/or chemical components of these natural organisms. To design artificial surfaces with remarkable wet adhesive properties, the underlying mechanisms of the fascinating adhesion phenomena are further explored and summarized to provide continuous inspiration. Herein, a systematic overview of biological wet adhesive surfaces and the corresponding artificial counterparts from the perspective of surface micro/nanostructures is provided. First, the research progress of the typical biological wet adhesive surfaces such as the octopus, tree frogs, and mayfly larvae is introduced. Then, the fundamental models of surface adhesion in natural organisms and the commonly used instruments for measuring adhesion force are discussed. Later, the corresponding artificial wet adhesive surfaces inspired by these representative organisms are highlighted. After that, the typical methods for fabricating these surfaces are briefly introduced. Finally, future challenges and opportunities to develop bioinspired multiscaled wet adhesive surfaces with controlled adhesion are presented.

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“…In the past two decades, acoustic micro/nano manipulation methods [1][2][3] have shown tremendous potential applications in biomedical engineering [4,5], bioanalytical chemistry [6,7], material science [8,9], micro/nano fabrication [10,11], lab-on-a-chip (LOC) technology [12,13] and so forth. Compared to other physical micro/nano manipulation methods, such as optical methods [14,15], magnetic methods [16][17][18], mechanical methods [19,20], and dielectrophoretic (DEP) methods [21][22][23], acoustic micro/nano manipulation methods possess the merits such as simple fabrication, little selectivity to optical/electrical/magnetic properties of manipulated samples, and good compatibility with other LOC components [1,2]. The acoustic micro/nano manipulation devices can be divided into two major categories, i.e., surface acoustic wave (SAW)-based devices [24,25] and bulk acoustic wave (BAW)-based devices [1].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of the Two-Dimensional Axisymmetric Acoustofluidic Fields in the Probe-Type and Substrate-Type Ultrasonic Micro/Nano Manipulation Systems

Liu

Tang

et al. 2019

Micromachines

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The probe-type and substrate-type ultrasonic micro/nano manipulation systems have proven to be two kinds of powerful tools for manipulating micro/nanoscale materials. Numerical simulations of acoustofluidic fields in these two kinds of systems can not only be used to explain and analyze the physical mechanisms of experimental phenomena, but also provide guidelines for optimization of device parameters and working conditions. However, in-depth quantitative study and analysis of acoustofluidic fields in the two ultrasonic micro/nano manipulation systems have scarcely been reported. In this paper, based on the finite element method (FEM), we numerically investigated the two-dimensional (2D) axisymmetric acoustofluidic fields in the probe-type and substrate-type ultrasonic micro/nano manipulation systems by the perturbation method (PM) and Reynolds stress method (RSM), respectively. Through comparing the simulation results computed by the two methods and the experimental verifications, the feasibility and reasonability of the two methods in simulating the acoustofluidic fields in these two ultrasonic micro/nano manipulation systems have been validated. Moreover, the effects of device parameters and working conditions on the acoustofluidic fields are clarified by the simulation results and qualitatively verified by the experiments.

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Magnetic field actuated manipulation and transfer of oil droplets on a stable underwater superoleophobic surface

Cited by 20 publications

References 32 publications

Superoleophobic surfaces

Superoleophobic surfaces

Bioinspired Multiscale Wet Adhesive Surfaces: Structures and Controlled Adhesion

Modeling and Analysis of the Two-Dimensional Axisymmetric Acoustofluidic Fields in the Probe-Type and Substrate-Type Ultrasonic Micro/Nano Manipulation Systems

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