Physicochemical properties of water-alcohol mixtures of a homological series of lower aliphatic alcohols

Kuchuk, V. I.; Shirokova, I. Yu.; Golikova, E. V.

doi:10.1134/s1087659612050057

Cited by 29 publications

(26 citation statements)

References 4 publications

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“…As this breaking of the water lm can be attributed to the high surface tension of the water lm, the addition of 2-propanol (isopropyl alcohol, IPA) was explored to lower the surface tension of the lm. 30 Although this strategy minimizes the amount of 2-propanol that will inltrate the sample, it is important to note that the addition of alcohols may dramatically inuence the phase behaviour of so matter, and thus adjustments in the procedure may be needed for different systems. To ensure this additive did not inuence the solubility and/or integrity of the features under investigation, a strategy was chosen to minimize the contact time of the surface active agent with the specimen.…”

Section: Resultsmentioning

confidence: 99%

Graphene oxide single sheets as substrates for high resolution cryoTEM

et al. 2015

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Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers)Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Link to publication• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. CryoTEM is an important tool in the analysis of soft matter, where generally defocus conditions are used to enhance the contrast in the images, but this is at the expense of the maximum resolution that can be obtained. Here, we demonstrate the use of graphene oxide single sheets as support for the formation of 10 nm thin films for high resolution cryoTEM imaging, using DNA as an example. With this procedure, the overlap of objects in the vitrified film is avoided. Moreover, in these thin films less background scattering occurs and as a direct result, an increased contrast can be observed in the images. Hence, imaging closer to focus as compared with conventional cryoTEM procedures is achieved, without losing contrast. In addition, we demonstrate an $1.8 fold increase in resolution, which is crucial for accurate size analysis of nanostructures.

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Section: Resultsmentioning

confidence: 99%

Graphene oxide single sheets as substrates for high resolution cryoTEM

et al. 2015

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“…The viscosity of the alcohol solutions does not change linearly with the concentration, but shows a maximum(Fig. 2)[3].…”

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confidence: 94%

“…Physical properties of aqueous solutions of short-chain alcohols, such as density, viscosity, surface tension, contact angles, refractive index, were investigated and quoted by many authors [1][2][3][4][5][6]. They include the parameters found in the Washburn equation that describes the flow of liquid through a bundle of cylindrical capillaries, which can also describes the imbibition of liquids into porous materials: (1) where: l -the length of the wetted section of the capillary, r -the radius of the capillary (pore), σthe surface tension of the liquid, θ -the wetting angle of the material with liquid, τtime of wetting, ηliquid viscosity.…”

Section: Introductionmentioning

confidence: 99%

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Wetting properties of aqueous short-chain alcohols’ solutions

Mizerski

2018

MATEC Web Conf.

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The article presents results of research on the wetting ability of aqueous solutions of short-chain alcohols in relation to selected hydrophobic materials. Polyethylene and Teflon were used as standard hydrophobic smooth materials. Dried peat with granulation d < 0.5 mm was used as the porous hydrophobic material. Physical properties of alcohols and their solutions having a direct influence on the rate of saturation of capillary layers have been discussed. The wettability of smooth surfaces was characterized by the advancing and receding contact angles and wetting tension, defined as the product of the liquid surface tension and cosine of contact angle. The contact angles were determined by Wilhelmy's method using the Krüss K-100 tensiometer. Wettability of peat was determined by measuring the mass rate of liquid imbibition by capillary forces. For comparison, analogous tests of wettability and capillary imbibition rates were carried out using sodium dodecyl sulfate solutions and solutions of typical wetting agent used in firefighting activities. The solutions of surfactants, in the range of concentrations used in extinguishing operations, showed much better wetting properties in relation to a smooth hydrophobic surface (polyethylene) than solutions of alcohols in the entire range of concentrations (up to 100%). The imbibition capacity of the hydrophobic peat layers of alcohol solutions with concentrations above 10% was higher than the solutions of surfactants. * Corresponding autor: amizerski@sgsp.edu.pl

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“…When dealing with complex systems such as binary or micellar systems, viscosity renders useful information about the interactions of the mixture components on a molecular level. The viscosity of binary mixtures of water/alcohol has been thoroughly studied in the past [28][29][30][31][32][33][34] due to their wide range of applications, including fuel-cell technology, as solvents in industrial, environmental and pharmaceutical processes, and as model systems in bioscience among others. Due to the heterogeneity of the mixture at a molecular level, these solutions exhibit anomalous transport behavior.…”

Section: Introductionmentioning

confidence: 99%

Single-shot velocity mapping by rewinding of velocity encoding with Echo-Planar Imaging

Serial

Mohammadi

Perlo

et al. 2019

Journal of Magnetic Resonance

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Physicochemical properties of water-alcohol mixtures of a homological series of lower aliphatic alcohols

Cited by 29 publications

References 4 publications

Graphene oxide single sheets as substrates for high resolution cryoTEM

Graphene oxide single sheets as substrates for high resolution cryoTEM

Wetting properties of aqueous short-chain alcohols’ solutions

Single-shot velocity mapping by rewinding of velocity encoding with Echo-Planar Imaging

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