Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.4
Journals
Materials
Special Issues
Advances in Soft Materials
materials-logo
Submit to Materials Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Advances in Soft Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Soft Matter".

Deadline for manuscript submissions: closed (30 October 2022) | Viewed by 4721

Special Issue Editor

Dr. Marcel Krzan

E-Mail Website
Guest Editor
Institute of Catalysis and Surface Chemistry of the Polish Academy of Sciences, Krakow, Poland
Interests: adsorption; foams; emulsions
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Foams and emulsions are among the most fundamental systems in soft matter science. They are targeted in many technologies as final products or intermediates. Such products are continuously formulated in an attempt to fulfil the requirements of high quality, efficiency, health safety, usage of biodegradable materials, low production costs, etc. The vast number of possibilities to use foams or emulsions in industrial processes and products originates from their unique properties.

The properties of foams and emulsions and their stability in time are governed by dynamic mechanisms, such as drainage in the case of foams and drop/bubble coalescence for foams and emulsions, which are strongly influenced by the bulk and dynamic interfacial properties of the involved liquids. The adsorption process at the drop/bubble surfaces and, in particular, the interfacial surface rheology of the adsorbed layers have, in fact, an essential role in the stability of the films between the drops/bubbles whose rupture induces the coalescence process.

Classically, molecules such as surfactants, polyelectrolytes and proteins as well as nanoparticles are used as molecular building blocks to stabilize aqueous foam or emulsion. In order to formulate such a dispersed system with specific properties, its structure must be controlled at the molecular level, i.e., at the foam liquid/gas or emulsion water/oil interfaces.

This Special Issue is dedicated to the fundamental and applied aspects involved in the study of foams and emulsions, to provide a comprehensive perspective on the current status of knowledge. The learnings in this field of study must go beyond the traditionally studied areas to cultivate new suggestions for resolving challenges. New theoretical approaches, numerical simulations, novel methods of stabilizing foams or emulsions and innovative techniques of smart and responsive soft matter systems preparation and characterization are welcome.

Dr. Marcel Krzan
Guest Editor

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. Materials 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 2600 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

  • Foams
  • Emulsions
  • Adsorption process
  • Adsorption mechanism
  • Kinetics and dynamics of the surface adsorption process
  • Interface
  • Surface modification
  • Surface characterisation
  • Surfactants and bio-surfactants
  • Foam and emulsion stability
  • Foams and emulsion rheology
  • Innovations in physical and chemical foaming / emulsifying methods
  • Smart and responsive foams or emulsions
  • Foaming agents/emulsifiers
  • Foaming/emulsion novel technologies
  • Biocompatible foam or emulsion

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 5896 KiB  
Article
Effects of N-Alkanol Adsorption on Bubble Acceleration and Local Velocities in Solutions of the Homologous Series from Ethanol to N-Decanol
by Marcel Krzan, Pradipta Chattopadhyay, Sandra Orvalho and Maria Zednikova
Materials 2023, 16(5), 2125; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16052125 - 06 Mar 2023
Cited by 1 | Viewed by 969
Abstract
The influence of n-alkanol (C2–C10) water solutions on bubble motion was studied in a wide range of concentrations. Initial bubble acceleration, as well as local, maximal and terminal velocities during motion were studied as a function of motion time. Generally, two types of [...] Read more.
The influence of n-alkanol (C2–C10) water solutions on bubble motion was studied in a wide range of concentrations. Initial bubble acceleration, as well as local, maximal and terminal velocities during motion were studied as a function of motion time. Generally, two types of velocity profiles were observed. For low surface-active alkanols (C2–C4), bubble acceleration and terminal velocities diminished with the increase in solution concentration and adsorption coverage. No maximum velocities were distinguished. The situation is much more complicated for higher surface-active alkanols (C5–C10). In low and medium solution concentrations, bubbles detached from the capillary with acceleration comparable to gravitational acceleration, and profiles of the local velocities showed maxima. The terminal velocity of bubbles decreased with increasing adsorption coverage. The heights and widths of the maximum diminished with increasing solution concentration. Much lower initial acceleration values and no maxima presence were observed in the case of the highest n-alkanol concentrations (C5–C10). Nevertheless, in these solutions, the observed terminal velocities were significantly higher than in the case of bubbles moving in solutions of lower concentration (C2–C4). The observed differences were explained by different states of the adsorption layer in the studied solutions, leading to varying degrees of immobilization of the bubble interface, which generates other hydrodynamic conditions of bubble motion. Full article
(This article belongs to the Special Issue Advances in Soft Materials)
►▼ Show Figures

Figure 1

15 pages, 2714 KiB  
Article
Interactions between O2 Nanobubbles and the Pulmonary Surfactant in the Presence of Inhalation Medicines
by Katarzyna Dobrowolska, Marcin Odziomek, Karol Ulatowski, Weronika Kędziora, Karolina Soszyńska, Paweł Sobieszuk and Tomasz R. Sosnowski
Materials 2022, 15(18), 6353; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15186353 - 13 Sep 2022
Cited by 1 | Viewed by 1232
Abstract
A dispersion of oxygen nanobubbles (O2-NBs) is an extraordinary gas–liquid colloidal system where spherical gas elements can be considered oxygen transport agents. Its conversion into inhalation aerosol by atomization with the use of nebulizers, while maintaining the properties of the dispersion, [...] Read more.
A dispersion of oxygen nanobubbles (O2-NBs) is an extraordinary gas–liquid colloidal system where spherical gas elements can be considered oxygen transport agents. Its conversion into inhalation aerosol by atomization with the use of nebulizers, while maintaining the properties of the dispersion, gives new opportunities for its applications and may be attractive as a new concept in treating lung diseases. The screening of O2-NBs interactions with lung fluids is particularly needed in view of an O2-NBs application as a promising aerosol drug carrier with the additional function of oxygen supplementation. The aim of the presented studies was to investigate the influence of O2-NBs dispersion combined with the selected inhalation drugs on the surface properties of two types of pulmonary surfactant models (lipid and lipid–protein model). The characteristics of the air–liquid interface were carried out under breathing-like conditions using two selected tensiometer systems: Langmuir–Wilhelmy trough and the oscillating droplet tensiometer. The results indicate that the presence of NBs has a minor effect on the dynamic characteristics of the air–liquid interface, which is the desired effect in the context of a potential use in inhalation therapies. Full article
(This article belongs to the Special Issue Advances in Soft Materials)
►▼ Show Figures

Figure 1

12 pages, 2064 KiB  
Article
Adsorption Study of Novel Gemini Cationic Surfactant in Carbonate Reservoir Cores—Influence of Critical Parameters
by Sarmad Khan, Afeez Gbadamosi, Kion Norrman, Xianmin Zhou, Syed Muhammad Shakil Hussain, Shirish Patil and Muhammad Shahzad Kamal
Materials 2022, 15(7), 2527; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15072527 - 30 Mar 2022
Cited by 14 | Viewed by 1529
Abstract
Surfactant flooding is an enhanced oil recovery method that recovers residual and capillary trapped oil by improving pore-scale displacement efficiency. Low retention of injected chemicals is desired to ensure an economic and cost-effective recovery process. This paper examines the adsorption behavior of a [...] Read more.
Surfactant flooding is an enhanced oil recovery method that recovers residual and capillary trapped oil by improving pore-scale displacement efficiency. Low retention of injected chemicals is desired to ensure an economic and cost-effective recovery process. This paper examines the adsorption behavior of a novel gemini cationic surfactant on carbonate cores. The rock cores were characterized using an X-ray diffraction (XRD) spectroscope. In addition, the influence of critical parameters on the dynamic adsorption of the cationic gemini surfactant was studied by injecting the surfactant solution through carbonate cores in a core flooding apparatus until an equilibrium state was achieved. The concentration of surfactant was observed using high performance liquid chromatography. Experimental results showed that an increasing surfactant concentration causes higher retention of the surfactant. Moreover, increasing the flow rate to 0.2 mL/min results in lowering the surfactant retention percentage to 17%. At typical high salinity and high temperature conditions, the cationic gemini surfactant demonstrated low retention (0.42 mg/g-rock) on an Indiana limestone core. This study extends the frontier of knowledge in gemini surfactant applications for enhanced oil recovery. Full article
(This article belongs to the Special Issue Advances in Soft Materials)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop