Super-non-wettable surfaces: A review

M., N. Valipour; Birjandi, F.Ch.; Sargolzaei, Javad

doi:10.1016/j.colsurfa.2014.02.016

Cited by 155 publications

(91 citation statements)

References 220 publications

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“…Generally, surfaces with water contact angles larger than 150°and slide angles lower than 10°are called superhydrophobic surfaces [4,5]. Nowadays, most of the researchers have focused on the fabrication of biomimetic superhydrophobic surfaces due to their potential applications in many fields, such as oilwater separation, anti-reflection, anti-adhesion, anti-sticking, anti-contamination, self-cleaning, and fluidic drag reduction [6].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of superhydrophobic copper surface with excellent corrosion resistance

et al. 2014

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This article presents an effective and facile method for preparing the superhydrophobic copper surface with excellent corrosion resistance. The superhydrophobic copper surfaces were fabricated by oxidizing, heat-treating, and alkyl chains' grafting. The resulting copper plates take on the binary structure which is composed of a great deal of nanosheets and needle-like/rod-like fibers. Just grounded on both the micro-and nanoscale hierarchical surface and the grafted long alkyl chains, the resulting copper plates are endued with the excellent water repellence, while the water contact angle and sliding angle can reach 157.3°and 5°, respectively. As a result, the superhydrophobic copper plates get the outstanding corrosion resistance.

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Section: Introductionmentioning

confidence: 99%

Fabrication of superhydrophobic copper surface with excellent corrosion resistance

et al. 2014

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“…In nature, there are many organisms with superhydrophobic surfaces, and the lotus leaf is a representative example. [5][6][7][8] Inspired by the self-cleaning properties of lotus leaves, researchers have made significant progress in fabrication of superhydrophobic surfaces recently. Most of the techniques used involve the conventional two-step procedure in which a surface is first roughened and then modified to lower the surface free energy, [9] such as chemical etching, sol-gel, and electrochemical deposition, etc.…”

Section: Introductionmentioning

confidence: 99%

One‐step immersion method for fabricating superhydrophobic aluminum alloy with excellent corrosion resistance

Liu

Che

Liu

et al. 2016

Surface & Interface Analysis

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This work develops a facile one-step immersion method for preparing the superhydrophobic aluminum alloy, i.e. the aluminum alloy is treated with stearic acid (STA)-ethanol-H 2 O solution at 60°C for 35 h. Results show that the aluminum alloy achieves flower-like structure with both a great deal of pillars and pores, while the long hydrophobic alkyl chains are chemically grafted onto the hierarchical surface. Meanwhile, the water contact angle at the aluminum alloy surface gradually enhances with the decrease of the ethanol-H 2 O volume ratio, and the water contact angle and rolling angle of 156.2°and 5°, respectively, are obtained when the ethanol-H 2 O volume ratio is 1:3. Moreover, results show that the higher water contact angle at the aluminum alloy, the better corrosion resistance of the aluminum alloy. Consequently, the aluminum alloy with the superhydrophobic property has the best corrosion resistance, durability, and stability in corrosive environments.

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“…The superhydrophilic part guides the solvent along the surface while the superhydrophobic material has a low surface tension and is therefore difficult to wet. 11 This will limit the deposited sample as well as the extraction solvent from further spreading. Besides the surface chemistry, the use of the DMA for LESA is of interest due to its high-throughput design.…”

Section: * S Supporting Informationmentioning

confidence: 99%

Improved Extraction Repeatability and Spectral Reproducibility for Liquid Extraction Surface Analysis–Mass Spectrometry Using Superhydrophobic–Superhydrophilic Patterning

et al. 2018

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A major problem limiting reproducible use of liquid extraction surface analysis (LESA) array sampling of dried surface-deposited liquid samples is the unwanted spread of extraction solvent beyond the dried sample limits, resulting in unreliable data. Here, we explore the use of the Droplet Microarray (DMA), which consists of an array of superhydrophilic spots bordered by a superhydrophobic material giving the potential to confine both the sample spot and the LESA extraction solvent in a defined area. We investigated the DMA method in comparison with a standard glass substrate using LESA analysis of a mixture of biologically relevant compounds with a wide mass range and different physicochemical properties. The optimized DMA method was subsequently applied to urine samples from a human intervention study. Relative standard deviations for the signal intensities were all reduced at least 3-fold when performing LESA-MS on the DMA surface compared with a standard glass surface. Principal component analysis revealed more tight clusters indicating improved spectral reproducibility for a human urine sample extracted from the DMA compared to glass. Lastly, in urine samples from an intervention study, more significant ions (145) were identified when using LESA-MS spectra of control and test urine extracted from the DMA. We demonstrate that DMA provides a surface-assisted LESA-MS method delivering significant improvement of the surface extraction repeatability leading to the acquisition of more robust and higher quality data. The DMA shows potential to be used for LESA-MS for controlled and reproducible surface extraction and for acquisition of high quality, qualitative data in a high-throughput manner.

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Super-non-wettable surfaces: A review

Cited by 155 publications

References 220 publications

Fabrication of superhydrophobic copper surface with excellent corrosion resistance

Fabrication of superhydrophobic copper surface with excellent corrosion resistance

One‐step immersion method for fabricating superhydrophobic aluminum alloy with excellent corrosion resistance

Improved Extraction Repeatability and Spectral Reproducibility for Liquid Extraction Surface Analysis–Mass Spectrometry Using Superhydrophobic–Superhydrophilic Patterning

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