Previous Issue
Volume 9, December
 
 

Colloids Interfaces, Volume 10, Issue 1 (February 2026) – 16 articles

  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list.
  • You may sign up for e-mail alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.
Order results
Result details
Section
Select all
Export citation of selected articles as:
19 pages, 2308 KB  
Article
Tuning Antigen–Adjuvant Interactions by Modulating the Physicochemical Properties of Aluminum Hydroxide Nanoparticles for Improved Antigen Stability
by Khaleda C. Rinee, Jan Ilavsky, Ivan Kuzmenco, Xiaobing Zuo and Amy Y. Xu
Colloids Interfaces 2026, 10(1), 16; https://doi.org/10.3390/colloids10010016 - 4 Feb 2026
Abstract
Adjuvants are chemical substances used in vaccines to enhance immunogenicity. Among them, aluminum-based nanoparticles are some of the oldest and most widely employed adjuvants in vaccine formulations. A key function of aluminum adjuvants is thought to involve acting as an antigen depot, enabling [...] Read more.
Adjuvants are chemical substances used in vaccines to enhance immunogenicity. Among them, aluminum-based nanoparticles are some of the oldest and most widely employed adjuvants in vaccine formulations. A key function of aluminum adjuvants is thought to involve acting as an antigen depot, enabling slow antigen release and providing sufficient time for effective immune activation. Therefore, understanding antigen–adjuvant interactions is essential, as these interactions influence antigen stability, release kinetics, and overall vaccine performance. In this study, we investigated how the physicochemical properties of aluminum hydroxide nanoparticles modulate antigen–protein interactions and affect protein stability. Nanoparticles synthesized under acidic (pH » 5.0) to near-neutral (pH » 7.1) conditions exhibited lower crystallinity, reduced hydroxyl density, and higher interfacial hydration, whereas those prepared under basic conditions (pH » 9.0) displayed increased crystallinity, enriched surface hydroxyl groups, and markedly reduced hydration. Antigen proteins bound to low-crystallinity aluminum hydroxide nanoparticles showed improved thermal stability, while those associated with highly crystalline nanoparticles exhibited reduced thermal stability. Complementary ITC study further suggests that these stability differences are accompanied by changes in their interaction behavior. These findings indicate that the structural and interfacial properties of aluminum hydroxide nanoparticles strongly influence their interactions with antigen proteins and the resulting physical stability. Together, our results demonstrate that the balance among crystallinity, hydroxyl organization, and interfacial hydration governs the thermal behavior of antigen proteins adsorbed onto aluminum hydroxide. This work provides a rational design principle for engineering aluminum-based adjuvants that optimize antigen–protein stability in vaccine formulations. Full article
(This article belongs to the Special Issue Biocolloids and Biointerfaces: 3rd Edition)
12 pages, 1052 KB  
Article
Evaluation of Pulsed Current Iontophoresis for Enhancing the Transdermal Absorption of the Osteoporosis Drug Teriparatide
by Ryuse Sakurai, Haruka Takenaka, Hiroyuki Ogino, Takashi Ishiyama, Issei Takeuchi and Akiyoshi Saitoh
Colloids Interfaces 2026, 10(1), 15; https://doi.org/10.3390/colloids10010015 - 29 Jan 2026
Viewed by 161
Abstract
This study aimed to evaluate the feasibility and safety of pulsed-current iontophoresis (IP) for the transdermal delivery of teriparatide, a therapeutic peptide for osteoporosis. Female rats were subjected to in vivo iontophoretic administration under constant or pulsed-current conditions. Serum teriparatide concentrations, skin irritation [...] Read more.
This study aimed to evaluate the feasibility and safety of pulsed-current iontophoresis (IP) for the transdermal delivery of teriparatide, a therapeutic peptide for osteoporosis. Female rats were subjected to in vivo iontophoretic administration under constant or pulsed-current conditions. Serum teriparatide concentrations, skin irritation scores, and transepidermal water loss (TEWL) were assessed. After 2 h of IP, serum teriparatide concentrations reached 53.3 ± 4.0 pg/mL with pulsed current and 48.8 ± 12.6 pg/mL with constant current, confirming successful transdermal absorption of teriparatide (≈4 kDa) into systemic circulation. Skin irritation was significantly reduced under pulsed-current conditions, as indicated by lower erythema, edema, and TEWL values, despite identical total current exposure. These results suggest that intermittent current application during pulsed-current IP alleviates local electrical stress through partial depolarization and may provide a delivery efficiency comparable to that of constant direct current IP while improving tolerability. Overall, pulsed-current IP enables noninvasive and effective systemic delivery of peptide drugs with minimized skin irritation, representing a promising alternative to injection-based administration for macromolecular therapeutics. Full article
Show Figures

Figure 1

13 pages, 2876 KB  
Article
Kinetic and Machine Learning Modeling of Heat-Induced Colloidal Size Changes in Camel Milk
by Akmal Nazir, Reem Zapin, Raneem Abudayeh, Asma Obaid Hamdan Alkaabi, Anuj Niroula, Khaja Mohteshamuddin and Nayef Ghasem
Colloids Interfaces 2026, 10(1), 14; https://doi.org/10.3390/colloids10010014 - 28 Jan 2026
Viewed by 171
Abstract
This study investigated heat-induced protein aggregation in skim camel milk by monitoring changes in the volume-weighted mean particle size (d4,3) during isothermal heating (60–90 °C, up to 60 min, four temperature levels and 25 time–temperature conditions). Pronounced increases in d [...] Read more.
This study investigated heat-induced protein aggregation in skim camel milk by monitoring changes in the volume-weighted mean particle size (d4,3) during isothermal heating (60–90 °C, up to 60 min, four temperature levels and 25 time–temperature conditions). Pronounced increases in d4,3 with both time and temperature confirmed significant thermal aggregation. The reaction kinetics were described using a generalized exponential growth model, which fitted well at intermediate temperatures (e.g., coefficient of determination (R2) = 0.901 at 70 °C and 0.959 at 80 °C) but deviated at the lower (60 °C) and upper (90 °C) extremes, reflecting more complex behavior. Arrhenius analysis of the rate constant yielded an activation energy of 50.61 kJ mol−1, lower than values typically reported for bovine milk systems, indicating that camel milk proteins require less thermal input to aggregate. In parallel, a machine learning model implemented as an artificial neural network (ANN) predicted d4,3 from time-temperature inputs with high accuracy (R2 > 0.97 across training, validation, and testing), capturing nonlinear patterns without mechanistic assumptions. Together, the kinetic and ANN approaches provide complementary insights into the heat sensitivity of camel milk proteins and offer predictive tools to support the optimization of thermal processing, formulation, and quality control in dairy applications. Full article
Show Figures

Graphical abstract

15 pages, 3955 KB  
Review
Biocompatible Emulsions Stabilized by Natural Silk Fibroin
by Xiuying Qiao, Reinhard Miller, Emanuel Schneck and Kang Sun
Colloids Interfaces 2026, 10(1), 13; https://doi.org/10.3390/colloids10010013 - 26 Jan 2026
Viewed by 113
Abstract
Due to its amphiphilicity, the natural fibrous structural protein, silk fibroin (SF), can adsorb at the oil/water interface, form protective viscoelastic layers, and stabilize emulsions. Biocompatible SF-stabilized emulsions can be used in different fields of cosmetics, food, drug delivery, and biomedicine. Depending on [...] Read more.
Due to its amphiphilicity, the natural fibrous structural protein, silk fibroin (SF), can adsorb at the oil/water interface, form protective viscoelastic layers, and stabilize emulsions. Biocompatible SF-stabilized emulsions can be used in different fields of cosmetics, food, drug delivery, and biomedicine. Depending on the silk processing method, various emulsion types can be obtained, such as film-stabilized emulsions stabilized by SF molecules and Pickering emulsions stabilized by nanostructured SF or SF particles. Nanostructured SF and SF particles, with β-sheet dominated secondary structures, can overcome the drawback of SF molecules with unstable conformation transition during application, and thus endow higher emulsion stability than SF molecules. The emulsions stabilized by SF nanoparticles can endure heat and high ionic strength, while the emulsions stabilized by SF nanofibers show superior stability at high temperature, high salinity, and low pH due to the strong interfacial entangled nanofiber networks. In this review, the recent progress in research on SF-stabilized emulsions is summarized and generalized, including a systematic comparison of the stabilization mechanisms for different SF morphologies, and the influences of the emulsion fabrication technique, component type and proportions, and environmental conditions on the microstructures and properties of SF-stabilized emulsions. Understanding the stabilization mechanism and factors influencing the emulsion stability is of great significance for the design, preparation and application of SF-stabilized emulsions. Full article
(This article belongs to the Special Issue State of the Art of Colloid and Interface Science in Asia)
Show Figures

Figure 1

22 pages, 5019 KB  
Article
Enhanced Bioactivity and Antibacterial Properties of Ti-6Al-4V Alloy Surfaces Modified by Electrical Discharge Machining
by Bárbara A. B. dos Santos, Rafael E. G. Leal, Ana P. G. Gomes, Liszt Y. C. Madruga, Ketul C. Popat, Hermes de Souza Costa and Roberta M. Sabino
Colloids Interfaces 2026, 10(1), 12; https://doi.org/10.3390/colloids10010012 - 22 Jan 2026
Viewed by 125
Abstract
Bacterial infections and the lack of bioactivity of titanium implants and their alloys remain critical challenges for the long-term performance and clinical success of these devices. These issues arise from the undesirable combination of early microbial adhesion and the limited ability of metallic [...] Read more.
Bacterial infections and the lack of bioactivity of titanium implants and their alloys remain critical challenges for the long-term performance and clinical success of these devices. These issues arise from the undesirable combination of early microbial adhesion and the limited ability of metallic surfaces to form a bioactive interface capable of supporting osseointegration. To address these limitations simultaneously, this study employed electrical discharge machining (EDM), which enables surface topography modification and in situ incorporation of bioactive ions from the dielectric fluid. Ti-6Al-4V ELI surfaces were modified using two dielectric fluids, a fluorine/phosphorus-based solution (DF1-F) and a calcium/phosphorus-based solution (DF2-Ca), under positive and negative polarities. The recast layer was characterized by SEM and EDS, while bioactivity was evaluated through immersion in simulated body fluid (SBF) for up to 21 days. Antibacterial performance was assessed against Staphylococcus aureus at 6 h and 24 h of incubation. The results demonstrated that dielectric composition and polarity strongly influenced ionic incorporation and the structural stability of the modified layers. The DF2-Ca(+) condition exhibited the most favorable bioactive response, with Ca/P ratios closer to hydroxyapatite and surface morphologies typical of mineralized coatings. In antibacterial assays, Ca/P-containing surfaces significantly decreased S. aureus attachment (>80–90%). Overall, EDM with Ca/P-containing dielectrics enables the fabrication of Ti-6Al-4V surfaces with enhanced mineralization capacity and anti-adhesive effects against Gram-positive bacteria, reinforcing their potential for multifunctional biomedical applications. Full article
(This article belongs to the Special Issue Biocolloids and Biointerfaces: 3rd Edition)
Show Figures

Figure 1

11 pages, 2861 KB  
Communication
Enhanced Photocatalytic Degradation Efficiency Enabled by Flower-like BiVO4 Microspheres Constituted of Nanosheets
by Chenhui Song, Junmou Zhou, Zhuoheng Wu, Lehao Liu, Jinkui Zhang and Junfeng Ma
Colloids Interfaces 2026, 10(1), 11; https://doi.org/10.3390/colloids10010011 - 21 Jan 2026
Viewed by 119
Abstract
Bismuth vanadate (BiVO4) has been regarded as a valuable semiconductor material for photocatalytic decomposition of organic pollutants thanks to its narrow band gap and environmental friendliness. However, its practical application is restricted by its small specific surface area, severe photo-generated carrier [...] Read more.
Bismuth vanadate (BiVO4) has been regarded as a valuable semiconductor material for photocatalytic decomposition of organic pollutants thanks to its narrow band gap and environmental friendliness. However, its practical application is restricted by its small specific surface area, severe photo-generated carrier recombination, and low photocatalytic degradation efficiency. Herein, a microemulsion method followed by a hydrothermal process is developed to prepare a flower-like BiVO4 microsphere constituted of thin nanosheets. Because of increase in reactive sites, facilitation of photo-induced carrier transfer, and generation of high-activity superoxygen (•O2) and hydroxyl (•OH) radicals, the photocatalytic degradation efficiency of the flower-like BiVO4 microparticle (synthesized with a hydrothermal duration of 6 h) for Congo red reaches 86.2% with a high degradation rate constant of 0.0134 min−1. Moreover, the cyclic degradation test proves the reasonable photocatalytic stability of the flower-like BiVO4 microparticle, showing its great application potential for photocatalytic degradation of organic pollutants. Full article
Show Figures

Graphical abstract

11 pages, 4344 KB  
Communication
Simple Approximate Relations for van der Waals Interaction Energy Between Spherical Particles of Different Radii and Variable Distances
by Petr Filip and Martin Pivokonsky
Colloids Interfaces 2026, 10(1), 9; https://doi.org/10.3390/colloids10010009 - 9 Jan 2026
Viewed by 177
Abstract
The van der Waals (vdW) interaction energy is a crucial factor in evaluating the potential destabilization of colloidal systems, such as those found in drinking-water treatment, where particles are often assumed to be spherical. Although the explicit dependence of the vdW interaction energy [...] Read more.
The van der Waals (vdW) interaction energy is a crucial factor in evaluating the potential destabilization of colloidal systems, such as those found in drinking-water treatment, where particles are often assumed to be spherical. Although the explicit dependence of the vdW interaction energy on the radii of spherical particles and their distances is known, a simple view is lacking due to the complexity of the relations. Here, we propose explicit, algebraically simple, approximate relations that provide insight into the fundamental influence of the input geometrical parameters. These relations, when combined with the exponentially decaying potential generated by the electrical double layer, can provide an approximate evaluation of the onset of raw water destabilization in drinking-water treatment, in other words, establishing the conditions under which pollutants in raw water begin to aggregate. Full article
Show Figures

Figure 1

16 pages, 1502 KB  
Article
Development of an Artemisia absinthium Essential Oil Nanoemulsion and Evaluation of Its Safety, Stability, Antimicrobial and Antioxidant Properties
by Nojod H. Hasaballah, Shareefa Abdullah AlGhamdi, Adeel G. Chaudhary, Hanan Aati, Jawzaa Almutairi, Shahd Moqaddam, Gumana Alkathiri, Ola Alahmadi, Abdullah Salwati, Rinad Abuzinadah, Khalil Alkuwaity, Wala Andejani and Hossam H. Tayeb
Colloids Interfaces 2026, 10(1), 10; https://doi.org/10.3390/colloids10010010 - 9 Jan 2026
Viewed by 293
Abstract
Antimicrobial resistance is driving the urgent need for novel antimicrobials. Nanoemulsions (NEs) offer alternatives to traditional antimicrobials by improving the physiochemical and biological properties of bioactive compounds. Artemisia absinthium essential oil (Art-EO) has antimicrobial and antioxidant properties, although its medical applications are limited [...] Read more.
Antimicrobial resistance is driving the urgent need for novel antimicrobials. Nanoemulsions (NEs) offer alternatives to traditional antimicrobials by improving the physiochemical and biological properties of bioactive compounds. Artemisia absinthium essential oil (Art-EO) has antimicrobial and antioxidant properties, although its medical applications are limited by hydrophobicity and potential cytotoxicity. To improve these properties, this study investigated an NE loaded with Art-EO (Art-EO NE) extracted via hydrodistillation from A. absinthium grown in Saudi Arabia. Extracted with 0.92% (v/w) yield from the aerial parts of A. absinthium, Art-EO was analysed by gas chromatography–mass spectrometry, revealing 29 compounds. The Art-EO NE, prepared using ultrasonication, showed a droplet size of 116 ± 0.2 nm, polydispersity index of 0.14 ± 0.0, and zeta potential of −23.9 ± 1.0 mV determined by dynamic and electrophoretic light scattering. The NE remained physically stable for two months and exhibited antimicrobial activity for one week. Compared to the Art-EO aqueous extract (minimum inhibitory concentration (MIC): 20% v/v Art-EO), the Art-EO NE enhanced antibacterial activity against Staphylococcus aureus by 32-fold (MIC: 0.625% v/v Art-EO). The NE also exhibited potent antioxidant activity and produced an acceptable in vivo safety profile. These findings present Art-EO NEs as effective antimicrobial and antioxidant agents. Full article
Show Figures

Graphical abstract

17 pages, 1725 KB  
Article
Wetting Behavior of Cationic and Anionic Surfactants on Hydrophobic Surfaces: Surface Tension and Contact Angle Measurements
by Sujit Kumar Shah, Rojina Bhattarai, Sujata Gautam, Pawan Shah and Ajaya Bhattarai
Colloids Interfaces 2026, 10(1), 8; https://doi.org/10.3390/colloids10010008 - 8 Jan 2026
Viewed by 275
Abstract
In this study, cationic surfactant cetyltrimethylammonium bromide (CTAB) and anionic surfactant sodium bis(2-ethylhexyl) sulfosuccinate (AOT) are employed to systematically investigate surface and wetting properties on hydrophobic surfaces, specifically in mixed solvents composed of ethylene glycol (EG) and water at 298.15 K. By varying [...] Read more.
In this study, cationic surfactant cetyltrimethylammonium bromide (CTAB) and anionic surfactant sodium bis(2-ethylhexyl) sulfosuccinate (AOT) are employed to systematically investigate surface and wetting properties on hydrophobic surfaces, specifically in mixed solvents composed of ethylene glycol (EG) and water at 298.15 K. By varying the concentration of each surfactant within the EG–water mixture, both surface tension and contact angle measurements are performed to elucidate how surfactant type and solvent composition influence interfacial behavior and wettability. PTFE and wax surfaces were chosen as model hydrophobic surfaces. Surface tension measurements obtained in pure water and in water–EG mixtures containing 5, 10, and 20 volume percentage EG reveal a consistent decrease in the premicellar slope (dγdlogC) with increasing EG content. This reduction reflects weakened hydrophobic interactions and less effective surfactant adsorption at the air–solution interface. The corresponding decline in maximum surface excess (Γmax) and increase in minimum area per molecule (Amin) confirm looser interfacial packing due to EG participation in the solvation layer. Plots of adhesion tension (AT) versus surface tension (γ) exhibit negative slopes, consistent with reduced solid–liquid interfacial tension (ΓLG) and greater redistribution of surfactant molecules toward the solid–liquid interface. AOT shows stronger sensitivity to EG compared to CTAB, reflecting structural headgroup-specific adsorption behavior. Work of adhesion (WA) measurements demonstrate enhanced wettability at higher EG concentrations, highlighting the cooperative impact of co-solvent environment and surfactant type on wetting phenomena. Full article
(This article belongs to the Special Issue State of the Art of Colloid and Interface Science in Asia)
Show Figures

Graphical abstract

29 pages, 5336 KB  
Review
Lipid-Based Colloidal Nanocarriers for Site-Specific Drug Delivery
by Kamyar Shameli, Behnam Kalali, Hassan Moeini and Aras Kartouzian
Colloids Interfaces 2026, 10(1), 7; https://doi.org/10.3390/colloids10010007 - 4 Jan 2026
Viewed by 747
Abstract
Lipid nanoparticles (LNPs) are now the go-to method for delivering genetic medicines, backed by real-world use in patients. Things like which fats they are made of, their shape at the molecular level, how ingredients mix, and how they are built, matter a lot. [...] Read more.
Lipid nanoparticles (LNPs) are now the go-to method for delivering genetic medicines, backed by real-world use in patients. Things like which fats they are made of, their shape at the molecular level, how ingredients mix, and how they are built, matter a lot. This review attempts to take a close look at how different components, such as ionizable lipids, auxiliary lipids (DSPC, DOPE), cholesterol, and PEG-based lipids, affect the bioavailability of LNPs. It also focuses on key functions of LNPs, including packaging genetic material, escaping cellular traps, spreading in the body, and remaining active in the blood. New data show that lipids with the right handedness and highly sensitive chiroptical quality control can sharpen delivery accuracy and boost transport rates, turning stereochemistry into a practical design knob. Rather than simply listing results, we examine real-world examples that are already used to regulate gene expression, enhance mRNA expression, splenic targeting, and show great potential for gene repair, protein replacement, and DNA base-editing applications. Also, recent advances in AI-based designs for LNPs that take molecular shape into account and help speed up modifications to lipid arrangements and mixture configurations are highlighted. In summary, this paper presents a practical and scientific blueprint to support smarter production of advanced LNPs used in genetic medicine, addressing existing obstacles, balanced with future opportunities. Full article
(This article belongs to the Special Issue Feature Reviews in Colloids and Interfaces)
Show Figures

Figure 1

20 pages, 3976 KB  
Article
Application of Cannabidiol Nanoemulsion for Skin Protection Against Particulate Matter: Evidence from an Ex Vivo Human Model
by Orathai Loruthai, Sornkanok Vimolmangkang and Wannita Klinngam
Colloids Interfaces 2026, 10(1), 6; https://doi.org/10.3390/colloids10010006 - 30 Dec 2025
Viewed by 374
Abstract
Nanoemulsions (NEs) offer a promising strategy for delivering lipophilic cannabidiol (CBD) to protect skin from particulate matter (PM)-induced damage. In this study, CBD-loaded oil-in-water NEs based on Brij® O10 (polyoxyethylene (10) oleyl ether) and olive oil were prepared by the phase inversion [...] Read more.
Nanoemulsions (NEs) offer a promising strategy for delivering lipophilic cannabidiol (CBD) to protect skin from particulate matter (PM)-induced damage. In this study, CBD-loaded oil-in-water NEs based on Brij® O10 (polyoxyethylene (10) oleyl ether) and olive oil were prepared by the phase inversion temperature (PIT) method and characterized. A 20% w/w Brij® O10 formulation (B20) remained clear and stable for 30 days. CBD solubility was markedly enhanced in Brij® O10 micelles and further increased in NEs, exceeding theoretical predictions and indicating synergistic solubilization in the oil–surfactant system. CBD incorporation lowered the PIT and induced nonlinear changes in droplet size with oil content. All formulations exhibited nanoscale droplets by dynamic light scattering and transmission electron microscopy, moderately low zeta potentials consistent with nonionic steric stabilization, and maintained physical stability despite increased turbidity at higher oil levels. In a full-thickness human ex vivo skin model exposed to PM, both blank and CBD-loaded NEs reduced interleukin-6 (IL-6) and matrix metalloproteinase-1 (MMP-1) in PM-exposed skin, with CBD-loaded NEs providing additional reductions and uniquely restoring procollagen type I C-peptide (PIP) relative to their blanks. Overall, PIT-based CBD NEs enhance CBD solubilization and protect human ex vivo skin from PM-induced inflammation and extracellular matrix degradation. Full article
(This article belongs to the Section Application of Colloids and Interfacial Aspects)
Show Figures

Graphical abstract

16 pages, 3130 KB  
Article
Aqueous Precipitate of Methanolic Extract of Bergenia ciliata Leaves Demonstrate Photoirradiation-Mediated Dual Property of Inhibition and Enhancement of Silver Nanoparticles Synthesis
by Sourav Gurung, Monalisha Sarmin and Muddasarul Hoda
Colloids Interfaces 2026, 10(1), 5; https://doi.org/10.3390/colloids10010005 - 30 Dec 2025
Viewed by 313
Abstract
Background: The aqueous and methanolic extracts (AE and ME) of Bergenia ciliata leaves have contradictory silver nanoparticles (AgNP) synthesis potential, influenced by photoirradiation. Method: In the current study, photoirradiation-mediated AgNP synthesis potential of two sub-extracts of ME, namely aqueous precipitated ME (PME) and [...] Read more.
Background: The aqueous and methanolic extracts (AE and ME) of Bergenia ciliata leaves have contradictory silver nanoparticles (AgNP) synthesis potential, influenced by photoirradiation. Method: In the current study, photoirradiation-mediated AgNP synthesis potential of two sub-extracts of ME, namely aqueous precipitated ME (PME) and aqueous dissolved ME (DME), were studied through comparison of their physicochemical properties. Results: In dark, DME demonstrated significant AgNP synthesis, whereas PME did not synthesize AgNPs. However, photoirradiation reversed the role of both the sub-extracts in nanoparticles synthesis. PME also demonstrated an inhibitory effect on AE-mediated AgNP synthesis in dark. GC-MS identified pyrogallol as the major reducing agent in both the sub-extracts. Photoirradiation significantly influenced the nanoparticle size and percent elemental composition of the AgNP. In dark, PME and DME produced AgNP of approx. 23.94 nm and 31.08 nm diameters, respectively, which significantly increased to 47.26 nm and 47.48 nm, respectively, on photoirradiation. Although no significant change in the percent silver composition was observed in PME-AgNP on photoirradiation (approx. 68%), DME demonstrated enhanced silver percent from approx. 58% to 72% on photoirradiation. Both DME- and PME-AgNPs were stable up to 15 days at 4 °C. Conclusions: PME has photoirradiation-mediated dual property of inhibition and enhancement of AgNPs synthesis. Full article
(This article belongs to the Topic New Research on Thin Films and Nanostructures)
Show Figures

Figure 1

18 pages, 3761 KB  
Article
Biocompatible Carbon-Coated Ferrite Nanodot-Based Magnetoliposomes for Magnetic-Induced Multimodal Theragnostic
by Venkatakrishnan Kiran, Anbazhagan Thirumalai, Pazhani Durgadevi, Najim Akhtar, Alex Daniel Prabhu, Koyeli Girigoswami and Agnishwar Girigoswami
Colloids Interfaces 2026, 10(1), 4; https://doi.org/10.3390/colloids10010004 - 24 Dec 2025
Viewed by 423
Abstract
Magnetoliposomes are hybrid nanostructures that integrate superparamagnetic ultrasmall carbon-coated ferrite nanodots (MNCDs) within liposomes (Lipo) composed of egg yolk-derived phospholipids and stabilized with an environmentally benign potato peel extract (PPE), enabling enhanced magnetic resonance imaging (MRI) and optical imaging. The hydrothermally synthesized MNCDs [...] Read more.
Magnetoliposomes are hybrid nanostructures that integrate superparamagnetic ultrasmall carbon-coated ferrite nanodots (MNCDs) within liposomes (Lipo) composed of egg yolk-derived phospholipids and stabilized with an environmentally benign potato peel extract (PPE), enabling enhanced magnetic resonance imaging (MRI) and optical imaging. The hydrothermally synthesized MNCDs were entrapped in liposomes prepared by thin-film hydration, and physicochemical properties were established at each stage of engineering. These magnetoresponsive vesicles (MNCDs+Lipo@PPE) serve as a triple-mode medical imaging contrast for T1 & T2-weighted MRI, while simultaneously enabling optical tracking of liposome degradation under an external magnetic field. They exhibited long-term enhanced fluorescence intensity and colloidal stability over 30 days, with hydrodynamic diameters ranging from 190 to 331 nm and an improved surface charge following PPE coating. In vitro cytotoxicity assays (MTT and Live/Dead staining) demonstrated over 87% cell viability for MNCDs+Lipo@PPE up to 2.7 mM concentration in A549 cells, indicating considerable toxicity. This multimodality engineering facilitates precise image-guided anticancer doxorubicin delivery and magnetic-responsive controlled release. The theoretical model shows that the release profile follows the Korsmeyer-Peppas profile. The externally applied magnetic field enhances the release by 1.4-fold. To demonstrate the anticancer efficiency in vitro with minimum off-target cytotoxicity, MTT and live/dead cell assay were performed against A549 cells. The reported study is a validated demonstration of magnetic-responsive nanocarrier systems for anticancer therapy and multimodal MRI and optical imaging-based diagnosis. Full article
(This article belongs to the Section Colloidal Systems)
Show Figures

Graphical abstract

2 pages, 138 KB  
Book Review
Book Review: Emulsions: From Single Interfaces to Applications; Miller, R., Guzmán-Solís, E., Eds.; CRC Press: Boca Raton, FL, USA, 2025; ISBN: 978-1-032-63610-8
by Saule B. Aidarova
Colloids Interfaces 2026, 10(1), 3; https://doi.org/10.3390/colloids10010003 - 23 Dec 2025
Viewed by 240
Abstract
Volume 8 of the book series ‘Progress in Colloid and Interface Science’ is dedicated to emulsions and their building blocks, the adsorption layers at the surface of emulsion drops and the liquid films between the drops [...] Full article
23 pages, 3674 KB  
Article
Structure–Function Effect of Heat Treatment on the Interfacial and Foaming Properties of Mixed Whey Protein Isolate/Persian Gum (Amygdalus scoparia Spach) Solutions
by Elham Ommat Mohammadi, Samira Yeganehzad, Regine von Klitzing, Reinhard Miller and Emanuel Schneck
Colloids Interfaces 2026, 10(1), 2; https://doi.org/10.3390/colloids10010002 - 22 Dec 2025
Viewed by 537
Abstract
This study aimed to elucidate the impact of Persian Gum (PG; Amygdalus scoparia Spach) on the heat-induced aggregation and interfacial behavior of whey protein isolate (WPI). To achieve this, pure WPI and mixed WPI-PG systems were subjected to thermal treatments between 25 and [...] Read more.
This study aimed to elucidate the impact of Persian Gum (PG; Amygdalus scoparia Spach) on the heat-induced aggregation and interfacial behavior of whey protein isolate (WPI). To achieve this, pure WPI and mixed WPI-PG systems were subjected to thermal treatments between 25 and 85 °C, and their structural and functional changes were characterized using fluorescence spectroscopy, UV-vis absorption, turbidity and bulk viscosity measurements, interfacial shear and dilatational rheology, and foaming assessments. The presence of PG altered the aggregation pathway of WPI in a temperature-dependent manner, producing smaller, more soluble complexes with lower turbidity, particularly at higher temperatures. Both pure WPI and WPI-PG mixtures exhibited increased surface hydrophobicity upon heating; however, PG generally reduced the dilatational elastic modulus except at 85 °C, where the mixed system showed a higher modulus than WPI alone. In contrast, the interfacial shear modulus increased over time in all samples, with consistently higher values observed for WPI-PG mixtures at both 25 °C and 85 °C. Notably, three complementary methods were employed to evaluate foaming properties and interfacial behavior in this study, revealing that factors such as concentration, measurement time, and methodological approach strongly influence the observed responses, highlighting the complexity of interpreting protein-polysaccharide interactions. The ability of PG to modulate WPI unfolding and limit the formation of large aggregates during heating demonstrates a previously unreported mechanism by which PG tailors heat-induced protein network formation. These findings underscore the potential of Persian Gum as a functional polysaccharide for designing heat-treated food systems with controlled aggregation behavior and optimized interfacial performance. Full article
(This article belongs to the Section Interfacial Properties)
Show Figures

Figure 1

17 pages, 1098 KB  
Article
Utilization of a Bioinformatic Approach to Identify Emulsifying Peptides Embedded in Brewers’ Spent Grain Proteins and Characterization of Their Emulsifying Properties
by Rasmus Kranold Mikkelsen, Ioanna Fragkaki, Simon Gregersen Echers, Naim Abdul-Khalek, Michael Toft Overgaard, Charlotte Jacobsen and Betül Yesiltas
Colloids Interfaces 2026, 10(1), 1; https://doi.org/10.3390/colloids10010001 - 19 Dec 2025
Viewed by 428
Abstract
Brewers’ spent grain (BSG) represents the major byproduct of the brewing industry and remains largely underutilized. While BSG contains a rather high amount of protein, poor functional properties limit its use as a functional ingredient for foods without additional processing. In this work, [...] Read more.
Brewers’ spent grain (BSG) represents the major byproduct of the brewing industry and remains largely underutilized. While BSG contains a rather high amount of protein, poor functional properties limit its use as a functional ingredient for foods without additional processing. In this work, we investigate emulsifying peptides embedded in the major BSG proteins based on a mass spectrometry-based proteomic analysis and subsequent bioinformatic prediction to explore the utilization of BSG as a raw material for the production of protein-based emulsifying ingredients. Forty-eight peptides were selected based on EmulsiPred score, amino acid sequence, and protein abundance for evaluation. All peptides effectively reduced the interfacial tension between oil–water, but only 15 could produce and stabilize emulsions with droplet sizes below 5 µm. Some peptides were able to produce stable emulsions with sub-micron droplet sizes, implying very promising emulsifying properties. This study demonstrated promising emulsifying properties of BSG peptides and suggested that the functionality could be predicted using bioinformatic tools. However, the used tool needs to be further optimized for higher success rate. Full article
(This article belongs to the Special Issue Food Colloids: 4th Edition)
Show Figures

Graphical abstract

Previous Issue
Back to TopTop