Water-based non-stick hydrophobic coatings

Schmidt, Donald L.; Coburn, Charles E.; DeKoven, Benjamin M.; Potter, Gregg E.; Meyers, Gregory F.; Fischer, Daniel A.

doi:10.1038/368039a0

Cited by 235 publications

(211 citation statements)

References 16 publications

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“…), washing (electronics, clothes, etc), antifogging and repellent surfaces (self-cleaning windows, water-proof textiles, anti-snow, anti-fog surfaces, papers, fibers, etc.). [2][3][4][5] Consequently, development and optimization of LSEMs has attracted much attention, and a wide variety of useful LSEMs can be obtained by fluorinating surfaces to yield a surface energies of γ ~15 mN m -1 for -CF3 groups and γ ~25 mN m -1 for -CF2. [6][7][8] Unfortunately, this has important environmental consequences because of the persistence, bioaccumulation, and toxicity of Fluorocarbons (FCs) 9,10 .…”

Section: Introductionmentioning

confidence: 99%

Low-Surface Energy Surfactants with Branched Hydrocarbon Architectures

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Low-Surface Energy Surfactants with Branched Hydrocarbon Architectures

et al. 2014

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“…Strategies to achieve surface modification can be broadly subdivided into postproduction modification techniques, such as corona discharge, 1 plasma treatment, 2 sputtering 3 and coating, 4 or by masterbatch methods in which additives are included in the polymer prior to processing and designed to migrate to the surface of the product spontaneously. 5 In recent years we and others have shown that remarkable increases in polymer hydrophobicity can be achieved with polymers having a small amount of fluorine concentrated at one end of the polymer chain.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Polyethylene with Multi-End-Functional Polyethylene Additives

et al. 2012

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We have prepared and characterized a series of multi-fluorocarbon end-functional polyethylene additives, which when blended with polyethylene matrices increase surface hydrophobicity and lipophobicity. Water contact angles of >112° were observed on spin-cast blended film surfaces containing less than 1% fluorocarbon in the bulk. Crystallinity in these films gives rise to surface roughness that is an order of magnitude greater than is typical for amorphous spin-cast films, but is too little to give rise to superhydrophobicity. X-ray photoelectron spectroscopy (XPS) confirms the enrichment of the multi-fluorocarbon additives at the air surface by up to 80 times the bulk concentration. Ion beam analysis was used to quantify the surface excess of the additives as a function of composition, functionality and molecular weight of either blend component. In some cases, an excess of the additives was also found at the substrate interface, indicating phase separation into selfstratified layers. The combination of neutron reflectometry and ion beam analysis allowed the surface excess to be quantified above and below the melting point of the blended films. In these films, where the melting temperatures of the additive and matrix components are relatively similar (within 15 °C) the surface excess is almost independent of whether the blended film is semicrystalline or molten, suggesting that the additive undergoes co-crystallization with the matrix when the blended films are allowed to cool below the melting point.2

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“…The resultant lms have been demonstrated to retain a population of intact oxazoline functionalities which can be used to covalently bind nanoparticles and ligands containing carboxylic acid groups. [30][31][32] The conditions selected for the plasma deposition resulted in a lm thickness of 25.01 AE 0.03 nm as measured by ellipsometry. AgNPs@MSA were immobilized by immersion of the plasma polymer modied surface in a solution of silver nanoparticles for predetermined time (Fig.…”

Section: Substrate Preparation and Characterizationmentioning

confidence: 99%

Silver nanoparticle modified surfaces induce differentiation of mouse kidney-derived stem cells

et al. 2018

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In this paper, we interrogate the influence of silver nanoparticle (AgNPs)-based model surfaces on mouse kidney-derived stem cells (mKSCs) differentiation. The widespread use of silver in biomedical and consumer products requires understanding of this element's effect on kidney cells. Moreover, the potential for using stem cells in drug discovery require methods to direct their differentiation to specialized cells. Hence, we generated coated model substrates containing different concentrations of surface immobilized AgNPs, and used them to evaluate properties and functions of mKSCs. Initially, mKSCs exhibited reduced viability on higher silver containing surfaces. However, longer culture periods assisted mKSCs to recover. Greater degree of cell spreading and arborization led by AgNPs, suggest podocyte differentiation. Proximal tubule cell marker's expression revealed differentiation to the specific lineage. Although the exact mechanism underpinning these findings require significant future efforts, this study demonstrate silver's capacity to stimulate mKSC differentiation, which may provide opportunities for drug screenings.

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Water-based non-stick hydrophobic coatings

Cited by 235 publications

References 16 publications

Low-Surface Energy Surfactants with Branched Hydrocarbon Architectures

Low-Surface Energy Surfactants with Branched Hydrocarbon Architectures

Surface Modification of Polyethylene with Multi-End-Functional Polyethylene Additives

Silver nanoparticle modified surfaces induce differentiation of mouse kidney-derived stem cells

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