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  1. Artikel: A Multistate Adsorption Model for the Characterization of C₁₃DMPO Adsorption Layers at the Aqueous Solution/Air Interface

    Fainerman, Valentin B. / Kovalchuk, Volodymyr I. / Aksenenko, Eugene V. / Ravera, Francesca / Liggieri, Libero / Loglio, Giuseppe / Makievski, Alexander V. / Mishchuk, Natalia O. / Schneck, Emanuel / Miller, Reinhard

    Langmuir. 2022 Apr. 13, v. 38, no. 16

    2022  

    Abstract: Experimental data for tridecyl dimethyl phosphine oxide (C₁₃DMPO) adsorption layers at the water/air interface, including equilibrium surface tension and surface dilational viscoelasticity, are measured by bubble and drop profile analysis tensiometry at ... ...

    Abstract Experimental data for tridecyl dimethyl phosphine oxide (C₁₃DMPO) adsorption layers at the water/air interface, including equilibrium surface tension and surface dilational viscoelasticity, are measured by bubble and drop profile analysis tensiometry at different solution concentrations and surface area oscillation frequencies. The results are used to assess the applicability of a multistate model with more than two possible adsorption states. For the experiments with single drops, the depletion of surfactant molecules due to adsorption at the drop surface is taken into account. For the assessment, the same set of model parameters is used for the description of all obtained experimental dependencies. The agreement between the proposed model and the experimental data shows that for the nonionic surfactant C₁₃DMPO, the description of the adsorption layer behavior by three adsorption states is superior to that with only two adsorption states.
    Schlagwörter adsorption ; air ; aqueous solutions ; models ; nonionic surfactants ; phosphine ; surface area ; surface tension ; viscoelasticity
    Sprache Englisch
    Erscheinungsverlauf 2022-0413
    Umfang p. 4913-4920.
    Erscheinungsort American Chemical Society
    Dokumenttyp Artikel
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.2c00289
    Datenquelle NAL Katalog (AGRICOLA)

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  2. Artikel ; Online: A Multistate Adsorption Model for the Characterization of C

    Fainerman, Valentin B / Kovalchuk, Volodymyr I / Aksenenko, Eugene V / Ravera, Francesca / Liggieri, Libero / Loglio, Giuseppe / Makievski, Alexander V / Mishchuk, Natalia O / Schneck, Emanuel / Miller, Reinhard

    Langmuir : the ACS journal of surfaces and colloids

    2022  Band 38, Heft 16, Seite(n) 4913–4920

    Abstract: Experimental data for tridecyl dimethyl phosphine oxide ( ... ...

    Abstract Experimental data for tridecyl dimethyl phosphine oxide (C
    Sprache Englisch
    Erscheinungsdatum 2022-04-13
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.2c00289
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: Particular Behavior of Surface Tension at the Interface between Aqueous Solution of Surfactant and Alkane

    Fainerman, Valentin B / Aksenenko, Eugene V / Javadi, Aliyar / Makievski, Alexander V / Miller, Reinhard / Nikolenko, Mykola V / Schneck, Emanuel

    Langmuir. 2019 Oct. 21, v. 35, no. 47

    2019  

    Abstract: A two-component interfacial layer model was employed to describe the experimental results obtained for various surfactants. In contrast to the previous works, here it is shown that the adsorption activity of alkane depends on its interaction with the ... ...

    Abstract A two-component interfacial layer model was employed to describe the experimental results obtained for various surfactants. In contrast to the previous works, here it is shown that the adsorption activity of alkane depends on its interaction with the adsorbed surfactant and is proportional to the surface coverage by this surfactant. Also, it is assumed that this increase of the adsorption activity parameter is limited by some maximum value. This model provides a good description of the influence of hexane and dodecane, which results in the decrease of surface tension by 2–5 mN/m at very low surfactant concentrations. The adsorbed amounts of the surfactant and alkane molecules in this low surfactant concentration range have been calculated. The reorientation model of surfactant adsorption predicts a smaller number of alkane molecules per one surfactant molecule than that which follows from the Frumkin model.
    Schlagwörter adsorption ; aqueous solutions ; hexane ; models ; surface tension ; surfactants
    Sprache Englisch
    Erscheinungsverlauf 2019-1021
    Umfang p. 15214-15220.
    Erscheinungsort American Chemical Society
    Dokumenttyp Artikel
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.9b02579
    Datenquelle NAL Katalog (AGRICOLA)

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  4. Artikel ; Online: Particular Behavior of Surface Tension at the Interface between Aqueous Solution of Surfactant and Alkane.

    Fainerman, Valentin B / Aksenenko, Eugene V / Makievski, Alexander V / Nikolenko, Mykola V / Javadi, Aliyar / Schneck, Emanuel / Miller, Reinhard

    Langmuir : the ACS journal of surfaces and colloids

    2019  Band 35, Heft 47, Seite(n) 15214–15220

    Abstract: A two-component interfacial layer model was employed to describe the experimental results obtained for various surfactants. In contrast to the previous works, here it is shown that the adsorption activity of alkane depends on its interaction with the ... ...

    Abstract A two-component interfacial layer model was employed to describe the experimental results obtained for various surfactants. In contrast to the previous works, here it is shown that the adsorption activity of alkane depends on its interaction with the adsorbed surfactant and is proportional to the surface coverage by this surfactant. Also, it is assumed that this increase of the adsorption activity parameter is limited by some maximum value. This model provides a good description of the influence of hexane and dodecane, which results in the decrease of surface tension by 2-5 mN/m at very low surfactant concentrations. The adsorbed amounts of the surfactant and alkane molecules in this low surfactant concentration range have been calculated. The reorientation model of surfactant adsorption predicts a smaller number of alkane molecules per one surfactant molecule than that which follows from the Frumkin model.
    Sprache Englisch
    Erscheinungsdatum 2019-11-15
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.9b02579
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  5. Artikel ; Online: Dilational Viscoelasticity of Proteins Solutions in Dynamic Conditions.

    Fainerman, Valentin B / Kovalchuk, Volodymyr I / Aksenenko, Eugene V / Zinkovych, Igor I / Makievski, Alexander V / Nikolenko, Mykola V / Miller, Reinhard

    Langmuir : the ACS journal of surfaces and colloids

    2018  Band 34, Heft 23, Seite(n) 6678–6686

    Abstract: Drop profile analysis tensiometry used in the oscillating drop mode provides the dilational viscoelasticity of adsorption layers at liquid interfaces. Applied during the progress of adsorption the dynamic surface rheology can be monitored. For β-casein ... ...

    Abstract Drop profile analysis tensiometry used in the oscillating drop mode provides the dilational viscoelasticity of adsorption layers at liquid interfaces. Applied during the progress of adsorption the dynamic surface rheology can be monitored. For β-casein solutions at the same surface pressure values, the larger the dynamic dilational viscoelasticity the longer the adsorption time, i.e., the smaller the studied protein concentration is. For β-lactoglobulin and human serum albumin, the differences in the viscoelasticity values are less or not dependent on the adsorption time at identical surface pressures. The observed effects are caused by the flexibility of BCS, while the globular proteins BLG and HSA do not change their conformation significantly within the adsorption layer.
    Mesh-Begriff(e) Adsorption ; Humans ; Lactoglobulins/chemistry ; Pressure ; Proteins/chemistry ; Rheology ; Serum Albumin, Human/chemistry ; Solutions/chemistry ; Surface Properties ; Viscosity ; Water/chemistry
    Chemische Substanzen Lactoglobulins ; Proteins ; Solutions ; Water (059QF0KO0R) ; Serum Albumin, Human (ZIF514RVZR)
    Sprache Englisch
    Erscheinungsdatum 2018-05-31
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.8b00631
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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