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Colloids and Interfaces
Special Issues
A Themed Issue in Honor of Prof. Boris Noskov
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A Themed Issue in Honor of Prof. Boris Noskov

A special issue of Colloids and Interfaces (ISSN 2504-5377).

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 22282

Special Issue Editors

Dr. Olga Milyaeva

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Guest Editor
Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
Interests: dilational surface rheology; surface tension; surface elasticity; adsorption; surfactants; proteins; protein aggregates; surface polymerization; surface morphology; polydopamine; ellipsometry
Dr. Alexey Bykov

E-Mail Website
Guest Editor
Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
Interests: surface rheology; surfactant solutions; adsorption; pulmonary surfactants; nanoparticles

Special Issue Information

Dear Colleagues,

This Special Issue belongs to a group of issues in our journal dedicated to outstanding scientists, pioneers in their scientific field, founders of schools, inventors of instruments, and experts having great achievements in colloid and interface science. Authors are invited to submit their contributions here to underline the particular role of the honored scientist.

Boris Noskov is a Professor at the Institute of Chemistry at St. Petersburg University (SPbU), where he has been a faculty member since 1971 and received his PhD in 1979. In 2000, he was habilitated and, in the same year, became a Professor at St. Petersburg University. Since 2007, Prof. Noskov is the Head of the Laboratory of Surface Phenomena. From 2001 to 2012, he was an invited researcher in Max-Planck Institute on colloid and interface science (Potsdam, Germany), a visiting Professor at the University of Florence (Italy), and Laue-Langevin Institute (Grenoble, France). Professor Noskov has a large number of collaborations with researchers in Europe and Asia and has published approximately 100 joint papers.

Professor Noskov is a well-known expert in surface phenomena of complex liquids and colloid science. His main research interest is related to the theoretical and experimental development of methods for surface rheology. The general thermodynamic theory of surface dilational rheology developed by Professor Noskov led to the derivation of particular expressions for the dynamic surface elasticity for surfactant solutions with mixed adsorption kinetics, micellar, and polymer solutions. These results allowed the group from SPbU to apply the methods of surface rheology to spread and adsorbed layers of surfactants, polymers, proteins, nanoparticles, and their mixtures. Other research interests of Professor Noskov include adsorption layers of fullerene derivatives, amyloid fibrils and other protein aggregates, interactions of fullerenes with polymers and proteins in the surface layer, formation of complexes between DNA and oppositely charged molecules at the liquid–gas interface, adsorption kinetics, and propagation and scattering of capillary waves in complex liquids. Currently, it is generally accepted that dynamic surface properties have strong effects on the stability and dynamics of emulsions and foams, which are used in various branches of industry. Therefore, the topic of this Special Issue will cover the dynamic properties of liquid–fluid interfaces. The issue will focus mainly on surface rheological properties of solutions of surfactants, polymers, and proteins, dispersions of micro- and nanoparticles, and on the adsorption kinetics in these systems. Other relevant topics will include the application of different modern techniques for investigations of structural transitions and the formation of heterogeneous adsorption and spread layers at liquid–fluid interfaces.

The submissions to this Special Issue aim at honoring the particular work of Professor Noskov for his great achievements over almost 50 years of work as a scientist and teacher at St. Petersburg University.

Dr. Olga Milyaeva
Dr. Alexey Bykov
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Colloids and Interfaces is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • dynamic surface properties
  • dynamic surface tension
  • dilational surface viscoelasticity
  • capillary waves
  • relaxation processes in insoluble monolayers
  • adsorption kinetics

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Published Papers (8 papers)

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Research

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14 pages, 3436 KiB  
Article
The Effects of Viscosity and Capillarity on Nonequilibrium Distribution of Gas Bubbles in Swelling Liquid–Gas Solution
by Alexander K. Shchekin, Anatoly E. Kuchma and Elena V. Aksenova
Colloids Interfaces 2023, 7(2), 39; https://doi.org/10.3390/colloids7020039 - 5 May 2023
Viewed by 2060
Abstract
A detailed statistical description of the evolution of supersaturated-by-gas solution at degassing has been presented on the basis of finding the time-dependent distribution in radii of overcritical gas bubbles. The influence of solution viscosity and capillarity via internal pressure in the bubbles on [...] Read more.
A detailed statistical description of the evolution of supersaturated-by-gas solution at degassing has been presented on the basis of finding the time-dependent distribution in radii of overcritical gas bubbles. The influence of solution viscosity and capillarity via internal pressure in the bubbles on this distribution has been considered until the moment when the gas supersaturation drops due to depletion and stops nucleation of new overcritical gas bubbles. This study is based on our previous results for the nonstationary growth rates of overcritical bubbles depending on gas supersaturation, diffusivity and solubility in solution, solution viscosity, and surface tension on bubble surface. Other important factors are linked with the initial rate of homogeneous gas bubble nucleation and coupling between diffusivity and viscosity in the solution. Here, we numerically studied how all these factors affect the time-dependent distribution function of overcritical bubbles in their radii, maximal and mean bubble radii, and the time-dependent swelling ratio of a supersaturated-by-gas solution in a wide range of solution viscosities. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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10 pages, 1515 KiB  
Article
First Observation of Protomicelles in the System with a Non-Colloidal Surfactant
by Anatoly I. Rusanov, Tamara G. Movchan and Elena V. Plotnikova
Colloids Interfaces 2023, 7(2), 32; https://doi.org/10.3390/colloids7020032 - 13 Apr 2023
Cited by 2 | Viewed by 1765
Abstract
A spectrophotometric study of the system heptanol—Nile red (NR)—water was carried out, where, for the first time for such studies, a non-colloidal surfactant that does not form micelles was taken as a surfactant. The dependence of the solubility of NR on the concentration [...] Read more.
A spectrophotometric study of the system heptanol—Nile red (NR)—water was carried out, where, for the first time for such studies, a non-colloidal surfactant that does not form micelles was taken as a surfactant. The dependence of the solubility of NR on the concentration of heptanol in an aqueous solution was studied. The experiments were carried out at a given chemical potential of NR, which was provided by an excess of the solid phase of NR. The existence of a solubilization effect has been theoretically and experimentally established: An increase in the solubility of NR with an increase in the concentration of heptanol in solution. It was found that heptanol protomicelles with a solubilization core as an NR molecule are formed in such a system, so that in the absence of micelles, the protomicelles take on the entire solubilization load. From the experimental data, the concentration of protomicelle formation was calculated, which can also be taken as the concentration of NR monomerization in an aqueous solution, since the formation of protomicelles prevents the dye aggregation. Based on the results obtained, the following generalizations were made: (1) non-colloidal surfactants, although they do not give micelles, are capable of forming protomicelles; and (2) non-colloidal surfactants can serve as a practical means of dye monomerization. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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18 pages, 2916 KiB  
Article
Impact of Hydrophobic and Electrostatic Forces on the Adsorption of Acacia Gum on Oxide Surfaces Revealed by QCM-D
by Athénaïs Davantès, Michaël Nigen, Christian Sanchez and Denis Renard
Colloids Interfaces 2023, 7(2), 26; https://doi.org/10.3390/colloids7020026 - 30 Mar 2023
Cited by 4 | Viewed by 2923
Abstract
The adsorption of Acacia gum from two plant exudates, A. senegal and A. seyal, at the solid-liquid interface on oxide surfaces was studied using a quartz crystal microbalance with dissipation monitoring (QCM-D). The impact of the hydrophobic and electrostatic forces on the adsorption capacity [...] Read more.
The adsorption of Acacia gum from two plant exudates, A. senegal and A. seyal, at the solid-liquid interface on oxide surfaces was studied using a quartz crystal microbalance with dissipation monitoring (QCM-D). The impact of the hydrophobic and electrostatic forces on the adsorption capacity was investigated by different surface, hydrophobicity, and charge properties, and by varying the ionic strength or the pH. The results highlight that hydrophobic forces have higher impacts than electrostatic forces on the Acacia gum adsorption on the oxide surface. The Acacia gum adsorption capacity is higher on hydrophobic surfaces compared to hydrophilic ones and presents a higher stability with negatively charged surfaces. The structural configuration and charge of Acacia gum in the first part of the adsorption process are important parameters. Acacia gum displays an extraordinary ability to adapt to surface properties through rearrangements, conformational changes, and/or dehydration processes in order to reach the steadiest state on the solid surface. Rheological analysis from QCM-D data shows that the A. senegal layers present a viscous behavior on the hydrophilic surface and a viscoelastic behavior on more hydrophobic ones. On the contrary, A. seyal layers show elastic behavior on all surfaces according to the Voigt model or a viscous behavior on the hydrophobic surface when considering the power-law model. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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18 pages, 4448 KiB  
Article
Non-Solvent- and Temperature-Induced Phase Separations of Polylaurolactam Solutions in Benzyl Alcohol as Methods for Producing Microfiltration Membranes
by Svetlana O. Ilyina, Tatyana S. Anokhina and Sergey O. Ilyin
Colloids Interfaces 2023, 7(1), 10; https://doi.org/10.3390/colloids7010010 - 20 Jan 2023
Cited by 5 | Viewed by 2953
Abstract
The possibility of obtaining porous films through solutions of polylaurolactam (PA12) in benzyl alcohol (BA) was considered. The theoretical calculation of the phase diagram showed the presence of the upper critical solution temperature (UCST) for the PA12/BA system at 157 °C. The PA12 [...] Read more.
The possibility of obtaining porous films through solutions of polylaurolactam (PA12) in benzyl alcohol (BA) was considered. The theoretical calculation of the phase diagram showed the presence of the upper critical solution temperature (UCST) for the PA12/BA system at 157 °C. The PA12 completely dissolved in BA at higher temperatures, but the resulting solutions underwent phase separation upon cooling down to 120–140 °C because of the PA12’s crystallization. The viscosity of the 10–40% PA12 solutions increased according to a power law but remained low and did not exceed 5 Pa·s at 160 °C. Regardless of the concentration, PA12 formed a dispersed phase when its solutions were cooled, which did not allow for the obtention of strong films. On the contrary, the phase separation of the 20–30% PA12 solutions under the action of a non-solvent (isopropanol) leads to the formation of flexible microporous films. The measurement of the porosity, wettability, strength, permeability, and rejection of submicron particles showed the best results for a porous film produced from a 30% solution by non-solvent-induced phase separation. This process makes it possible to obtain a membrane material with a 240 nm particle rejection of 99.6% and a permeate flow of 1.5 kg/m2hbar for contaminated water and 69.9 kg/m2hbar for pure water. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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8 pages, 2436 KiB  
Article
The Effect of the Open Vase-like Microcapsules Formation with NiFe Double-Hydroxide Walls during Hydrolysis of the Mixture NiSO4 and FeSO4 Salt Solution Microdroplets Deposited on the Alkaline Solution Surface
by Valeri P. Tolstoy, Alexandra A. Meleshko, Anastasia A. Golubeva and Elizaveta V. Bathischeva
Colloids Interfaces 2022, 6(2), 32; https://doi.org/10.3390/colloids6020032 - 23 May 2022
Cited by 2 | Viewed by 2347
Abstract
In this work, the conditions for the synthesis of open vase-like microcapsules with a size of 1–5 μm and 20–40 nm walls of NiFe0.3(OH)x layered double hydroxide were studied. These microcapsules were obtained by the rapid hydrolysis of microdroplets of [...] Read more.
In this work, the conditions for the synthesis of open vase-like microcapsules with a size of 1–5 μm and 20–40 nm walls of NiFe0.3(OH)x layered double hydroxide were studied. These microcapsules were obtained by the rapid hydrolysis of microdroplets of a solution of a mixture of NiSO4 and FeSO4 salts at the surface of an alkali solution. A hypothetical model of successive chemical processes occurring at the interface during synthesis is presented. The features of the “rim” formation around each microcapsule hole from the wall material with a peculiar nozzle-like shape are noted. These microcapsules can be transferred to the surface of a nickel foil using the Langmuir–Schaefer (LS) method. During the transfer process, they are fixed to the surface in an oriented position with a “rim” that contacts the nickel surface. It was established that electrodes made of such a foil with a layer of microcapsules exhibit active electrocatalytic properties in the oxygen evolution reaction during the electrolysis of water in an alkaline medium. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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11 pages, 3008 KiB  
Article
Impact of Polymer Nanoparticles on DPPC Monolayer Properties
by Alexey Bykov, Olga Milyaeva, Alexander Akentiev, Maria Panaeva, Nikolaj Isakov, Reinhard Miller and Boris Noskov
Colloids Interfaces 2022, 6(2), 28; https://doi.org/10.3390/colloids6020028 - 26 Apr 2022
Cited by 3 | Viewed by 2498
Abstract
The application of surface rheology and Brewster angle microscopy on mixed monolayers of DPPC and polymeric nanoparticles (cationic and anionic) showed that the sign of the particle charge affects the dynamic properties of the monolayers less than the nanoparticles’ ability to aggregate. Under [...] Read more.
The application of surface rheology and Brewster angle microscopy on mixed monolayers of DPPC and polymeric nanoparticles (cationic and anionic) showed that the sign of the particle charge affects the dynamic properties of the monolayers less than the nanoparticles’ ability to aggregate. Under almost physiological conditions, the effect of nanoparticles on the elasticity of DPPC monolayer is insignificant. However, the particles prevent the surface tension from decreasing to extremely low values. This effect could affect the functionality of pulmonary surfactants. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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17 pages, 3599 KiB  
Article
Effects of Oil Phase on the Inversion of Pickering Emulsions Stabilized by Palmitic Acid Decorated Silica Nanoparticles
by Andrés González-González, Natalia Sánchez-Arribas, Eva Santini, José Luis Rodríguez-Villafuerte, Carlo Carbone, Francesca Ravera, Francisco Ortega, Libero Liggieri, Ramón G. Rubio and Eduardo Guzmán
Colloids Interfaces 2022, 6(2), 27; https://doi.org/10.3390/colloids6020027 - 25 Apr 2022
Cited by 4 | Viewed by 3102
Abstract
Pickering emulsions stabilized by the interaction of palmitic acid (PA) and silica nanoparticles (SiNPs) at the water/oil interface have been studied using different alkane oil phases. The interaction of palmitic acid and SiNPs has a strong synergistic character in relation to the emulsion [...] Read more.
Pickering emulsions stabilized by the interaction of palmitic acid (PA) and silica nanoparticles (SiNPs) at the water/oil interface have been studied using different alkane oil phases. The interaction of palmitic acid and SiNPs has a strong synergistic character in relation to the emulsion stabilization, leading to an enhanced emulsion stability in relation to that stabilized only by the fatty acid. This results from the formation of fatty acid-nanoparticle complexes driven by hydrogen bond interactions, which favor particle attachment at the fluid interface, creating a rigid armor that minimizes droplet coalescence. The comparison of emulsions obtained using different alkanes as the oil phase has shown that the hydrophobic mismatch between the length of the alkane chain and the C16 hydrophobic chain of PA determines the nature of the emulsions, with the solubility of the fatty acid in the oil phase being a very important driving force governing the appearance of phase inversion. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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Review

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25 pages, 4163 KiB  
Review
Interfacial Dynamics of Adsorption Layers as Supports for Biomedical Research and Diagnostics
by Eva Santini, Irene Nepita, Alexey G. Bykov, Francesca Ravera, Libero Liggieri, Saeid Dowlati, Aliyar Javadi, Reinhard Miller and Giuseppe Loglio
Colloids Interfaces 2022, 6(4), 81; https://doi.org/10.3390/colloids6040081 - 13 Dec 2022
Cited by 7 | Viewed by 3128
Abstract
The input of chemical and physical sciences to life sciences is increasingly important. Surface science as a complex multidisciplinary research area provides many relevant practical tools to support research in medicine. The tensiometry and surface rheology of human biological liquids as diagnostic tools [...] Read more.
The input of chemical and physical sciences to life sciences is increasingly important. Surface science as a complex multidisciplinary research area provides many relevant practical tools to support research in medicine. The tensiometry and surface rheology of human biological liquids as diagnostic tools have been very successfully applied. Additionally, for the characterization of pulmonary surfactants, this methodology is essential to deepen the insights into the functionality of the lungs and for the most efficient administration of certain drugs. Problems in ophthalmology can be addressed using surface science methods, such as the stability of the wetting films and the development of artificial tears. The serious problem of obesity is fast-developing in many industrial countries and must be better understood, while therapies for its treatment must also be developed. Finally, the application of fullerenes as a suitable system for detecting cancer in humans is discussed. Full article
(This article belongs to the Special Issue A Themed Issue in Honor of Prof. Boris Noskov)
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