Advances in Soft Matter Interfaces and Structures

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

Deadline for manuscript submissions: 31 May 2026 | Viewed by 2074

Special Issue Editor


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Guest Editor
1. Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30239 Krakow, Poland
2. Institute of Physical Chemistry, Bulgarian Academy of Sciences, Sofia, Acad. G. Bonchev Str., bl. 11, 1113 Sofia, Bulgaria
Interests: physical chemistry of soft interfaces; adsorption dynamics and surface rheology; structure of interfacial layers; thin liquid films; foams and emulsions; surfactants, polymers and proteins
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Special Issue Information

Dear Colleagues,

Liquid/fluid interfaces, and corresponding soft matter multiphase systems like foams and emulsions, are ubiquitous in nature and play fundamental roles in various technologies. This large scientific domain has existed for centuries, and an enormous body of original and review articles, as well as numerous books (including the most recent one Emulsions: From Single Interfaces to Applications) on pertinent topics have been published so far. Yet, this field of research is still of great interest because of existing open questions in the basic scientific understanding of related phenomena and processes, and on the other hand, because of the diversity of relevant applications. The field is a platform for development of different research directions in colloid chemistry (interfacial dynamics; electrostatics and fine structure; surface rheology; thin liquid films; foams and emulsions; etc.), in biology, biotechnology and medicine (complex fluid interfaces; bilayer lipid membranes; phase-separated condensates; etc.), in nanostructures and nanomaterials (self-assembly and coacervation; nanoarchitectonics; nanocomposites; etc.) and in other research areas. Supramolecular structures, such as, polymer or protein microgel particles as well as food-grade protein-based amyloid fibrils, increasingly attract interest due to their abilities to functionalize soft interfaces in unique ways. Surprisingly, the interactions between such complex interfaces in thin liquid films are extremely scarcely studied. Water-in-water emulsions based on aqueous two-phase systems (ATPS) have become extensively studied and a significant amount of valuable information has already been published. However, the all-aqueous nature of these peculiar emulsion systems causes inevitable difficulties for researchers, mainly due to the severely restricted applicability of most of the available surface-sensitive experimental methods. Hence, our fundamental understanding of the ATPS water/water interface and the mechanisms of stabilization of water droplets in water is currently in its infancy. Notably, this scientific problem is of primary importance to understand any aqueous-phase separation phenomenon and process, such as cell compartmentalization.

Dr. Georgi G. Gochev
Guest Editor

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Keywords

  • surfactants, polymers and proteins
  • amphiphile self-assembly, aggregation and coacervation
  • microgels and amyloid fibrils
  • interfacial monolayers, bilayers (membranes) and multilayers
  • adsorption dynamics
  • surface rheology
  • interfacial charge
  • thin liquid films
  • foams and emulsions
  • liquid–liquid phase separation

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Published Papers (3 papers)

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Research

18 pages, 2903 KB  
Article
Solid Foams from Geopolymerization of Lunar Regolith Simulants Slurries
by Michela Elena Pedretti, Libero Liggieri, Luca Valentini, Giovanna Canu, Alberto Lagazzo, Francesca Ravera and Eva Santini
Colloids Interfaces 2026, 10(2), 29; https://doi.org/10.3390/colloids10020029 - 16 Apr 2026
Viewed by 230
Abstract
Robust, lightweight, and thermally insulating building materials, developed according to the In Situ Resource Utilization (ISRU) paradigm, are essential for enabling Moon settlements. With this aim, we have investigated the formulation and characterization of porous geopolymeric materials based on a lunar regolith simulant, [...] Read more.
Robust, lightweight, and thermally insulating building materials, developed according to the In Situ Resource Utilization (ISRU) paradigm, are essential for enabling Moon settlements. With this aim, we have investigated the formulation and characterization of porous geopolymeric materials based on a lunar regolith simulant, focusing on the influence of surfactants and rheology-modifying additives on pore structure and final material performance. As an optimized procedure, a pre-formed TTAB foam was, in fact, incorporated into the geopolymeric precursor slurries to achieve a suitable porosity. Then, the effects of three thickeners (xanthan gum, bentonite, and Actigel-208) were evaluated in view of the possible utilization for the production of building blocks by 3D printing. Observations of the pore structure after the geopolymeric consolidation of the slurries showed predominantly closed-cell networks across all formulations, with a pore morphology strongly dependent on the thickener used. Xanthan gum promoted high porosity but reduced mechanical integrity, whereas bentonite produced denser structures with higher thermal conductivity. Actigel-208 provided the most balanced performance, combining adequate porosity with improved strength. These findings demonstrate the potential of producing thermally insulating, structurally stable solid foams from lunar regolith simulants via a geopolymerization route. Full article
(This article belongs to the Special Issue Advances in Soft Matter Interfaces and Structures)
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22 pages, 2202 KB  
Article
Chitosan-Based Molecularly Imprinted Polymers as Functional Adsorbents: Selective m-Cresol Removal from Red Wine
by Diana Abril, Liudis L. Pino-Ramos, V. Felipe Laurie, Ricardo I. Castro, Gustavo Cabrera-Barjas, Alfredo Pereira, Evandra L. Parra, Adolfo Marican, Esteban F. Durán-Lara and Oscar Valdés
Colloids Interfaces 2026, 10(1), 18; https://doi.org/10.3390/colloids10010018 - 6 Feb 2026
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Abstract
In this preliminary study, chitosan-based molecularly imprinted polymers crosslinked with glutaraldehyde were synthesized and evaluated for the selective removal of m-cresol, a volatile phenol associated with the sensory defect known as smoke taint in wine. Three formulations of chitosan-based molecularly imprinted polymers [...] Read more.
In this preliminary study, chitosan-based molecularly imprinted polymers crosslinked with glutaraldehyde were synthesized and evaluated for the selective removal of m-cresol, a volatile phenol associated with the sensory defect known as smoke taint in wine. Three formulations of chitosan-based molecularly imprinted polymers (MIP-Gs) were synthesized using glutaraldehyde as a crosslinker and m-cresol as a template. Non-imprinted polymers (NIP-Gs) served as controls. The polymers were characterized by Fourier-transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy, which confirmed successful crosslinking and structural differences between MIPs and NIPs. Adsorption performance was evaluated using solid-phase extraction cartridges packed with the synthesized polymers, employing a Cabernet Sauvignon wine. The MIPs exhibited higher adsorption efficiency and selectivity toward m-cresol compared to NIPs, achieving removal rates of 15% to 40%, depending on polymer formulation and analyte concentration. Molecular dynamics simulations were used to investigate polymer–analyte interactions at the molecular level, providing mechanistic insight into the preferential binding of m-cresol within the imprinted cavities. Physicochemical analyses of red wine showed that m-cresol removal occurred with minimal impact on key phenolic parameters, supporting the functional selectivity of MIPs. These results demonstrate that chitosan-based MIPs constitute a promising class of materials for selective adsorption applications in complex liquid systems. Full article
(This article belongs to the Special Issue Advances in Soft Matter Interfaces and Structures)
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13 pages, 4516 KB  
Article
Onset of Tectomeric Self-Assemblies in Aqueous Solutions of Three-Antennary Oligoglycines
by Anna Y. Gyurova, Ljubomir Nikolov and Elena Mileva
Colloids Interfaces 2025, 9(6), 83; https://doi.org/10.3390/colloids9060083 - 4 Dec 2025
Viewed by 482
Abstract
A detailed investigation of the structure–property relationships of three-antennary oligoglycines in aqueous solutions is performed. Two representatives of these substances are investigated: CH3C(-CH2-NH-Gly5)3 and CH3C(-CH2-NH-Gly7)3. The aim is [...] Read more.
A detailed investigation of the structure–property relationships of three-antennary oligoglycines in aqueous solutions is performed. Two representatives of these substances are investigated: CH3C(-CH2-NH-Gly5)3 and CH3C(-CH2-NH-Gly7)3. The aim is to clarify the effect of molecular peculiarities and the concentration of the oligoglycines on bulk-solution performance and on adsorption-layer properties at the solution–air interface. This study is focused on the clarification of the conditions for the onset of bulk and interfacial supramolecular species in the aqueous environment. The presence of oligoglycine antennae attached to a common carbon-atom center allows the formation of highly coordinated intra- and intermolecular ‘click-clack’ interactions and presumes the possibility for the development of extended H-bonded networks, e.g., in the form of Polyglycine II motifs. A combined study protocol, including dynamic light scattering, profile analysis tensiometry, and microscopic thin-liquid-film techniques, is applied. The results allow the drawing of essential conclusions about the possible coupling mechanism of bulk and interfacial phenomena. The outcomes give grounds to advance the following hypothesis: due to the synchronized action of noncovalent interactions, three types of tectomeric structures may appear—dimers, gel-like elements, and disk-like supramolecular entities. Options for fine-tuning of the tectomer formation in aqueous solutions are presented, and possible application routes are outlined. Full article
(This article belongs to the Special Issue Advances in Soft Matter Interfaces and Structures)
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