Response to “Correspondence Concerning Hemocompatibility of Superhemophobic Titania Surfaces”

Movafaghi, Sanli; Leszczak, Victoria; Wang, W.; Sorkin, Jonathan A.; Dasi, Lakshmi Prasad; Popat, Ketul C.; Kota, Arun K.

doi:10.1002/adhm.201700647

Cited by 8 publications

(3 citation statements)

References 43 publications

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“…Superomniphobic surfaces that can repel various types of liquids have received an extensive amount of attention because they can be applied in various applications such as efficient heat transfer, drag reduction, , antibiofouling, , liquid transportation, − and biological assays. , Conventionally, superomniphobic surfaces have been fabricated through a combination of micro- and nanohierarchical structures and subsequent chemical treatments. To make micro and nanohierarchical structures, diverse methods such as stacking micro- and nanospheres, , texturing fibers, spray coating, ,− and photolithography , have been used.…”

Section: Introductionmentioning

confidence: 99%

Nonfluorinated Superomniphobic Surfaces through Shape-Tunable Mushroom-like Polymeric Micropillar Arrays

Kim

Han

Lee

et al. 2018

ACS Appl. Mater. Interfaces

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Superomniphobic surfaces showing extremely liquid-repellent properties have received a great amount of attention as they can be used in various industrial and biomedical applications. However, so far, the fabrication processes of these materials mostly have involved the coating of perfluorocarbons onto micro- and nanohierarchical structures of these surfaces, which inevitably causes environmental pollution, leading to health concerns. Herein, we developed a facile method to obtain flexible superomniphobic surfaces without perfluorocarbon coatings that have shape-tunable mushroom-like micropillars (MPs). Inspired by the unique structures on the skin of springtails, we fabricated mushroom-like structures with downward facing edges (i.e., a doubly re-entrant structure) on a surface. The flexible MP structures were fabricated using a conventional micromolding technique, and the shapes of the mushroom caps were made highly tunable via the deposition of a thin aluminum (Al) layer. Due to the compressive residual stress of the Al, the mushroom caps were observed to bend toward the polymer upon forming doubly re-entrant–MP structures. The obtained surface was found to repel most low-surface-tension liquids such as oils, alcohols, and even fluorinated solvents. The developed flexible superomniphobic surface showed liquid repellency even upon mechanical stretching and after surface energy modification. We envision that the developed superomniphobic surface with high flexibility and wetting resistance after surface energy modification will be used in a wide range of applications such as self-cleaning clothes and gloves.

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Section: Introductionmentioning

confidence: 99%

Nonfluorinated Superomniphobic Surfaces through Shape-Tunable Mushroom-like Polymeric Micropillar Arrays

Kim

Han

Lee

et al. 2018

ACS Appl. Mater. Interfaces

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“…In addition, the application of superamphiphobic coating technology on the touch screen panel of smart devices can significantly reduce the occurrence of fingerprints and smudge deposition [10,11]. Thus, the superamphiphobic surface is useful for a variety of applications such as self-cleaning [12,13], anti-fouling [14], corrosion resistance [15], and anti-icing [16,17]. However, obtaining a superamphiphobic surface is challenging because organic liquids with low surface energy readily spread not only on most solid surfaces but also on superhydrophobic surfaces.…”

Section: Introductionmentioning

confidence: 99%

Effect of Silica Size and Content on Superamphiphobic Properties of Silica-Fluoropolymer Core-Shell Coatings

Lee

Hwang

et al. 2020

Polymers

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We present a facile approach to fabricate superamphiphobic surfaces by spray coating silica-fluoropolymer core-shell particles without substrate pretreatment with an additional binder resin. A series of SiO2@poly(1H,1H,2H,2H-heptadecafluorodecyl methacrylate) (SiO2@PFMA) core-shell particles with core particles of different sizes were prepared via thiol-lactam initiated radical polymerization (TLIRP). The surface of each SiO2 particle with an average particle size of 12, 80, 150, and 350 nm was modified with (3-mercaptopropyl) trimethoxysilane and used as a seed for TLIRP. The SiO2@PFMA particles with various SiO2 sizes and contents were coated on aluminum substrates by a spray gun and then thermally treated to form a stable, rough composite layer. During the spray coating, the core-shell particles were aggregated by rapid evaporation of the solvent and then irregularly adhered to the substrate resulting in hierarchical structures. In the case of SiO2@PFMAs with low SiO2 contents, the roughness created mainly by the polymer shell disappeared during heat treatment. However, the substrates coated with SiO2@PFMAs with high SiO2 contents maintained the roughness even after heat treatment. The core-shell particles prepared with 12 nm SiO2 formed a stable superamphiphobic surface. The water/hexadecane contact and sliding angles on an aluminum plate coated with SiO2@PFMA, prepared using 12 nm silica at 46 wt% silica content (12 nm-SiO2(46)@PFMA), were 178.5°/159.2° and 1°/7°, respectively. The cross-cut tape test showed that adhesion between the 12nm-SiO2(46)@PFMA and the aluminum substrate was classified as 5B. A glass surface spray-coated with the core-shell composite particles exhibited transparent superhydrophobicity and translucent superamphiphobicity by controlling the concentration of the coating solution.

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“…A surface topography, which reduces the effective surface area accessible to platelets, should be chosen. 8 In addition, the surface morphology is also a critical issue and for instance, reducing the adhesion area exposed to individual platelets decreases the thrombogenicity. 9 Moreover, high-curvature surfaces are known to induce denaturation of proteins and therefore, less adhesion of platelets.…”

mentioning

confidence: 99%

PTFEP–Al₂O₃ hybrid nanowires reducing thrombosis and biofouling

et al. 2019

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Response to “Correspondence Concerning Hemocompatibility of Superhemophobic Titania Surfaces”

Cited by 8 publications

References 43 publications

Nonfluorinated Superomniphobic Surfaces through Shape-Tunable Mushroom-like Polymeric Micropillar Arrays

Nonfluorinated Superomniphobic Surfaces through Shape-Tunable Mushroom-like Polymeric Micropillar Arrays

Effect of Silica Size and Content on Superamphiphobic Properties of Silica-Fluoropolymer Core-Shell Coatings

PTFEP–Al₂O₃ hybrid nanowires reducing thrombosis and biofouling

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Response to “Correspondence Concerning Hemocompatibility of Superhemophobic Titania Surfaces”

Cited by 8 publications

References 43 publications

Nonfluorinated Superomniphobic Surfaces through Shape-Tunable Mushroom-like Polymeric Micropillar Arrays

Nonfluorinated Superomniphobic Surfaces through Shape-Tunable Mushroom-like Polymeric Micropillar Arrays

Effect of Silica Size and Content on Superamphiphobic Properties of Silica-Fluoropolymer Core-Shell Coatings

PTFEP–Al2O3 hybrid nanowires reducing thrombosis and biofouling

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PTFEP–Al₂O₃ hybrid nanowires reducing thrombosis and biofouling