{"title":"Temperature-responsive Pickering emulsions via ionic liquid-functionalized Janus nanosheets/PNIPAM nanoarchitectonics for efficient cascade reactions","authors":"Yunlei Shi, Wei Lu, Zhuoxue Li, Rui Zhou, Dazhen Xiong, Zhiyong Li","doi":"10.1016/j.colsurfa.2026.139936","DOIUrl":"10.1016/j.colsurfa.2026.139936","url":null,"abstract":"<div><div>Cascade reactions have garnered considerable attention owing to their high efficiency, operational simplicity, and compliance with green chemistry principles. Pickering emulsion with a large reaction interface provides a good platform but remains challenging, such as achieving spatial isolation of distinct catalytically active sites within the emulsion system. Janus nanosheets with asymmetric structures offer an ideal solution to this issue. Herein, ionic liquid-functionalized Janus nanosheets (Janus-IL) were synthesized and subsequently combined with poly(N-isopropylacrylamide) (PNIPAM) to act as emulsifiers for stabilizing Pickering emulsions. Remarkably, the phase behavior of the Pickering emulsion exhibits reversible alternation between emulsification and demulsification upon temperature switching between 25 °C and 40 °C, demonstrating excellent temperature responsiveness. Based on the temperature-switchable emulsion micro-reactor stabilized by the synergistic effect of Janus-IL and PNIPAM, a cascade reaction was successfully carried out, which not only shortened the reaction time and reduced the temperature, but also achieved the coupling of product separation and emulsifier recycling. The strategy delivers a creative route for developing novel stimuli-responsive Pickering emulsions, thereby facilitating the development of environmentally benign and sustainable chemical processes.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139936"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yunchang Fan , Jingjing Chen , Yanhe Nie , Sheli Zhang , Xinjia Wei , Haibao Zhu
{"title":"Fabrication of pH-responsive ionic porous organic polymers via ionic liquid mediation for efficient gold recovery from electronic waste","authors":"Yunchang Fan , Jingjing Chen , Yanhe Nie , Sheli Zhang , Xinjia Wei , Haibao Zhu","doi":"10.1016/j.colsurfa.2026.139849","DOIUrl":"10.1016/j.colsurfa.2026.139849","url":null,"abstract":"<div><div>From the perspectives of environmental protection and sustainable development, gold recycling is of paramount importance. This study presents a green synthesis of imine-based porous organic polymers (POPs) using an ionic liquid as the reaction medium. The imine groups within the POPs can be protonated under acidic conditions, transforming them into pH-responsive ionic POPs. Through a synergistic mechanism of electrostatic interaction and in situ reduction, the proposed POP demonstrates an exceptional gold adsorption capacity of 1299.6 mg g⁻<sup>1</sup>, achieves rapid equilibrium within 15 min, exhibits high selectivity, and maintains excellent reusability over ten consecutive cycles. The adsorption process followed pseudo-second-order kinetic model and the Freundlich isotherm, while thermodynamic analysis confirmed its chemisorption nature. This work not only provides a novel strategy for fabricating ionic POPs but also demonstrates their significant potential for efficient gold recovery from electronic waste.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139849"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Linxuan Cao , Qiongyao Guo , Qingmin Hu, Junping Dong
{"title":"In situ self-assembly of Fe-N-C oxygen reduction catalysts and morphology evolution triggered by sulfates","authors":"Linxuan Cao , Qiongyao Guo , Qingmin Hu, Junping Dong","doi":"10.1016/j.colsurfa.2026.139708","DOIUrl":"10.1016/j.colsurfa.2026.139708","url":null,"abstract":"<div><div>Transition-metal-nitrogen-carbon catalysts have been considered one of the most promising oxygen reduction catalysts. Generally, direct pyrolysis and template approaches are popular in preparation of ORR catalysts. Yet these methods are restricted to a certain extent due to their inherent flaws. Therefore, the elaborate design and controllable synthesis of catalysts still remain challenges. Here, Polydopamine-derived Fe-N-C catalysts are in situ fabricated by self-assembly strategy. Nanorod-like catalysts were obtained by pyrolysis of FeSO<sub>4</sub>-Phen/PDA/F127@trimethylbenzene composite micelles. The introduction of SO<sub>4</sub><sup>2-</sup> ion plays a critical role in the morphology evolution from nanospheres to nanorods with the assistance of phenanthroline. The presence of trimethylbenzene (TMB) facilitates the dispersion of single atom Fe on the surface of composite micelles. Thus the simultaneous modulation of active sites and carbon architectures on Fe-N-C catalysts were achieved by finely regulating the interfaces of composite micelles. The novel catalyst exhibits good ORR activity and durability over Pt/C catalyst with more positive half-wave potential and higher current density. The good electrocatalytic performances are attributed to the larger surface areas, hierarchical porous structures and highly active FeN<sub>4</sub> sites. Moreover, Zn-air battery fabricated with Fe-N-C catalysts as the air cathode display higher power density of 116 mW cm<sup>−2</sup> and specific capacity of 713 mA h g<sup>−1</sup>. This work will open up a new avenue for in situ fabrication of M-N-C catalysts (M=Cu, Co, Ni, Mn, Zn) via self-assembly strategy.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139708"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146045190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gaurang Dalsaniya , Deep Bhalani , Aakash Shukla , Mayursing Girase , Gitika Kharkwal , Ketan Kuperkar , Sugam Kumar , Vinod K. Aswal , Sadafara A. Pillai
{"title":"Development and comprehensive evaluation of Tetronic® 1304-Labrasol® mixed micelles for lung-targeted drug delivery: A physicochemical, biological, and computational approach for improved pulmonary chemotherapy","authors":"Gaurang Dalsaniya , Deep Bhalani , Aakash Shukla , Mayursing Girase , Gitika Kharkwal , Ketan Kuperkar , Sugam Kumar , Vinod K. Aswal , Sadafara A. Pillai","doi":"10.1016/j.colsurfa.2026.139870","DOIUrl":"10.1016/j.colsurfa.2026.139870","url":null,"abstract":"<div><div>Lung-targeted drug delivery has emerged as one of the most promising strategies for treating lung cancer, enhancing local drug accumulation while minimizing systemic toxicity. Pulmonary drug delivery is a key focus of nanomedicine, enabling the direct administration of chemotherapeutics to the lungs. Herein, we report the formulation and detailed physicochemical characterization of mixed micelles composed of Tetronic® 1304, a pH- and thermo-responsive block copolymer, and Labrasol®, a nonionic surfactant known for its emulsifying and permeation-enhancing properties. The phase behavior was evaluated by cloud point (CP) measurements, micellar size and shape by dynamic light scattering (DLS), small-angle neutron scattering (SANS), and relative viscosity by viscosity measurements. The hydrophobic model anticancer drug quercetin (QCT) was encapsulated into mixed micelles, and its increased solubility was confirmed by UV–visible spectroscopy. The <em>in vitro</em> cytotoxicity against lung epithelial adenocarcinoma cells (A549) was studied via an MTT assay, where IC₅₀ values were calculated to define the efficiency of drug-loaded micelles. Moreover, increased intracellular reactive oxygen species (ROS) levels, along with nuclear damage, evidenced that micelles induced both apoptosis and necrosis. These results demonstrated that T1304-Labrasol® mixed micelles are efficient nanocarriers of hydrophobic drugs in pulmonary applications. DFT-based computational analysis revealed that mixing T1304-Labrasol® induces favorable dipole alignment, enhanced thermodynamic stability, and increased electronic softness, collectively promoting stronger intermolecular interactions and improved self-assembly behaviour. This study provides important insight into their possible applications as nanocarriers in lung-targeted chemotherapy and thus constitutes a contribution to developing more active and targeted nanomedicine-based treatments against lung cancer.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139870"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Brownian dynamics simulation of structural evolution in drying colloid-polymer mixtures","authors":"Hyunjeong An, Young Ki Lee","doi":"10.1016/j.colsurfa.2026.139719","DOIUrl":"10.1016/j.colsurfa.2026.139719","url":null,"abstract":"<div><div>Drying-induced structural evolution in colloid–polymer mixtures plays a crucial role in determining the mechanical and functional properties of composite films. Despite its practical relevance, theoretical studies that simultaneously resolve interfacial stratification and pore/packing evolution during drying of colloid–polymer mixtures remain limited. Here, Brownian dynamics simulations were conducted to elucidate the effects of polymer concentration, chain length, and colloid–polymer interactions on the microstructure of dried colloid–polymer films. Polymer addition markedly altered interfacial stratification and particle packing. In the colloid-only dispersed system, colloidal particles progressively accumulated and packed near the liquid–gas interface; in contrast, in colloid–polymer mixtures, the interfacial region became increasingly enriched with polymer during drying, hindering the formation of a densely packed colloidal layer. An increasing polymer concentration promoted the development of a polymer-enriched layer near the liquid–gas interface, suppressing colloidal accumulation and increasing interfacial porosity. Voronoi analysis was employed to quantitatively characterize the colloidal structures formed within the dried films. Higher polymer concentrations led to greater heterogeneity in interparticle spacing and broader pore-size distributions, whereas variations in polymer chain length exerted only a minor influence on the structural evolution within the tested range. Finally, introducing colloid–polymer attraction through a Lennard–Jones potential significantly reduced polymer migration toward the interface, thereby yielding denser packing and narrower pore-size distributions. These findings suggest that colloid–polymer affinity can be an important factor influencing final film morphology under convection-dominated drying. The present study provides insights into microstructural control in functional colloid–polymer coatings and drying processes, while highlighting the utility of simulation-based prediction for film formation.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139719"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shu Wang , Jie Liu , Yupu Liu , Dongxu Shi, Jialu Xu, Shuang Han, Wenlong Yang
{"title":"Heterojunction tailored-engineering for enhanced photoreduction applications on H2 production and Cr(VI) degradation","authors":"Shu Wang , Jie Liu , Yupu Liu , Dongxu Shi, Jialu Xu, Shuang Han, Wenlong Yang","doi":"10.1016/j.colsurfa.2026.139757","DOIUrl":"10.1016/j.colsurfa.2026.139757","url":null,"abstract":"<div><div>In this work, we propose \"nano-lab\" concept for precisely regulating the energy band structure of heterojunction photocatalysts to achieve tailored heterostructure modulation. The heterostructure was constructed via in situ deposition growth, while atomic doping strategies were employed to precisely modulate the band edge positions. A combination of systematic experimental characterizations and theoretical simulations was utilized to elucidate the charge transfer pathway, heterostructure evolution, and the underlying mechanism of the heterojunction effect. Based on a non-ideal Type-I heterojunction, the introduction of Fe 3d and Zn 4 s orbitals selectively modulated the valence band of SrTiO<sub>3</sub> and the conduction band of Zn<sub>0.7</sub>Cd<sub>0.3</sub>S, respectively. This resulted in a sequential transformation of the heterostructure from Type-I (CdS/SrTiO₃) to Type-Ⅱ (CdS/Fe–SrTiO₃) and finally to an S-scheme configuration (Zn<sub>0.7</sub>Cd<sub>0.3</sub>S/Fe–SrTiO₃). As a result, efficient spatial charge separation was achieved in both CdS/Fe–SrTiO₃ and Zn<sub>0.7</sub>Cd<sub>0.3</sub>S/Fe–SrTiO₃, with the latter exhibiting superior redox thermodynamic potentials. Although Zn<sub>0.7</sub>Cd<sub>0.3</sub>S/Fe–SrTiO₃ demonstrated the highest Cr(VI) degradation performance, it showed only the second-best H₂ evolution activity due to its reduced visible-light absorption and higher H* adsorption free energy compared to CdS/Fe–SrTiO₃. Therefore, the optimal photocatalyst should not be determined solely by the heterostructure type, but rather by the synergistic interplay of multiple factors governing photocatalytic efficiency.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139757"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haifeng Wang , Zhengsong Hu , Jie Xu , Chaoyang Li , Aokun Lin , Kunkun Zhu , Li Yu , Guanxiang Ma , Yuwen Liu , Haifeng Bao
{"title":"In-situ generation of gas bubbles in porous gel spheres for multiphase catalysis","authors":"Haifeng Wang , Zhengsong Hu , Jie Xu , Chaoyang Li , Aokun Lin , Kunkun Zhu , Li Yu , Guanxiang Ma , Yuwen Liu , Haifeng Bao","doi":"10.1016/j.colsurfa.2026.139768","DOIUrl":"10.1016/j.colsurfa.2026.139768","url":null,"abstract":"<div><div>Capturing gas bubbles in liquid is vital for the gas-liquid-solid (GLS) three-phase reactions due to the limited gas solubility. Constructing the special porous skeleton for bubble accommodation opens an opportunity to drag bubbles in liquid. Herein, mm-sized Pd-anchored cellulose/agarose (PCA) spheres with a highly porous architecture have been fabricated using a liquid nitrogen-freezing method. PCA particles could act as gas carrier to accommodate a variety of gas bubbles in liquid, including H<sub>2</sub>, O<sub>2</sub>, air, and CO<sub>2</sub> via an in-situ nucleation route. Moreover, these PCA beads enabled efficient multiphase catalysis as demonstrated by cascade reduction of a series of substances, such as aldehydes, nitroarenes, and alkenes. Their catalytic activities remarkably surpassed Pd-deposited solid glass spheres (PG) and sole Pd nanoparticles, manifesting the important role of their porous texture in gas harvesting and storage. A gas (H<sub>2</sub>) utilization of 98.0 % was attained for multiphase reaction over PCA beads. During multiphase reaction process, a controllable motion of PCA spheres was achieved via gas reservation or consumption. This work provides a profound inspiration for bubble arresting and stabilization toward regulable movement and multiphase processes.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139768"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maryam Shabbir , Mussarat Tasleem , Lina Lee , Mohamad Akbar Ali , Maria Atiq , Mohamed Ettabib , Mostafa Khair , Dalaver H. Anjum , Manzar Abbas
{"title":"Self-assembly of tripeptides and anticancer drug into nanostructures via synergistic non-covalent interactions for enhanced photodynamic therapy","authors":"Maryam Shabbir , Mussarat Tasleem , Lina Lee , Mohamad Akbar Ali , Maria Atiq , Mohamed Ettabib , Mostafa Khair , Dalaver H. Anjum , Manzar Abbas","doi":"10.1016/j.colsurfa.2026.139788","DOIUrl":"10.1016/j.colsurfa.2026.139788","url":null,"abstract":"<div><div>Among anticancer modalities, photodynamic therapy (PDT) using self-assembled nanomaterials has emerged as a promising non-invasive approach for cancer treatment. However, poor stability, biocompatibility, and a lack of structure-function relationship are real challenges and self-assembled peptide nanoformulations offer an effective strategy to overcome these limitations. In this study, we report the development of peptides-modulated self-assembled nanoparticles of anticancer drug chlorin e6 (Ce-6) and two tripeptides (Ac-IFH-NH<sub>2</sub>, NH<sub>2</sub>-IFH-COOH) through synergistic effects of non-covalent interactions. The tripeptides act as structural modulators; molecular simulations reveal that electrostatic interactions and π–π stacking are key factors in governing the assembly process. The resulting nanostructures display H-type aggregation, confirming strong interactions between the tripeptides and drug molecules. Compared with free Ce-6, the self-assembled nanoparticles exhibit significantly enhanced photodynamic activity upon light activation, enabling selective cancer cell death. This self-assembly strategy provides a practical and versatile platform to enhance anticancer efficacy and paves the way for developing advanced therapeutics for targeted cancer therapy.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139788"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fangxin Wan , Luyao Ding , Wei Chen , Kejie Chen , Tianyi Hang , Yiming Chen , Shaohua Jiang , Qing Ouyang , Shiju E , Jiajia Zheng
{"title":"Engineering fragmented MXene-derived localized conductive networks in multifunctional cellulose composite aerogel absorbers","authors":"Fangxin Wan , Luyao Ding , Wei Chen , Kejie Chen , Tianyi Hang , Yiming Chen , Shaohua Jiang , Qing Ouyang , Shiju E , Jiajia Zheng","doi":"10.1016/j.colsurfa.2026.139805","DOIUrl":"10.1016/j.colsurfa.2026.139805","url":null,"abstract":"<div><div>The advancement of modern science and technology has significantly facilitated daily life and societal operations, yet simultaneously contributes to increasing electromagnetic pollution. Cellulose aerogels have shown broad application prospects for electromagnetic wave absorption (EMWA) due to their low density, high porosity, and adjustable structure. In this work, we first obtained fragmented MXene by ultrasonic treatment of flake MXene, and combined it with carboxymethyl cellulose (CMC) to prepare a functional cellulose-based composite aerogel absorber via a straightforward freeze-drying technology. Thanks to the rich surface functional groups of MXene fragments, they could be efficiently attached to the surface of the aerogel skeleton, thus giving the composite aerogel excellent EMWA performance. At an ultrathin matching thickness of 1.52 mm, the absorber achieved highly efficient microwave attenuation with minimum reflection loss of −49.3 dB and effective absorption bandwidth of 4.89 GHz. In addition, the unique porous structure of the composite aerogel endowed it with exceptional thermal insulation and sound absorption capabilities. This work presents a simple and sustainable strategy to develop multifunctional cellulose composite materials for a variety of application scenarios.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139805"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anna Maria Tschigg , Maike Bleiss , Theresia Heiden-Hecht , Susanne Gola , Stephanie Bader-Mittermaier , Peter Eisner
{"title":"Emulsion and interfacial properties of blended potato–lupin protein systems","authors":"Anna Maria Tschigg , Maike Bleiss , Theresia Heiden-Hecht , Susanne Gola , Stephanie Bader-Mittermaier , Peter Eisner","doi":"10.1016/j.colsurfa.2026.139714","DOIUrl":"10.1016/j.colsurfa.2026.139714","url":null,"abstract":"<div><div>The demand for plant-based proteins in emulsified foods has grown, necessitating deeper insights into how individual components and blends of plant proteins behave in oil–water systems. We examined potato (PPI) and lupin protein isolate (LPI), alone and in blends, at varying concentrations (1.0 %, 0.5 %, 0.1 %, 0.01 %) in oil-in-water emulsions produced by microfluidisation. Emulsions were analysed for droplet size distribution, and the protein content and protein composition of the aqueous phases were determined. Additionally, interfacial tension (IFT) was measured using pendant drop tensiometry. At 1.0 % total protein concentration, PPI formed small droplets (dx(50) = 0.83 ± 0.05 µm), whereas LPI exhibited median particle sizes around 3.45 ± 1.95 µm. The trend reversed at 0.1 % protein concentration. Blended systems showed significant droplet aggregation. Pendant drop tensiometry indicated that PPI effectively lowered IFT (9.19 ± 0.07 mN/m at 1.0 % total protein after 120 min), although adequate protein concentrations were necessary for a rapid decrease. LPI reduced IFT more rapidly at lower concentrations but maintained a higher IFT after 120 min compared to PPI at 1.0 % (11.55 ± 0.52 mN/m). In blends, the strong tension-lowering effect of PPI dominated at higher protein concentrations, while LPI fractions reduced IFT more rapidly at lower concentrations, highlighting a concentration-dependent interaction. Protein composition analysis confirmed that key PPI fractions readily adsorbed at the interface, while blending promoted depletion of selected lupin fractions from the continuous phase. The findings suggest that combining potato and lupin proteins can be used to tune emulsion properties in a concentration- and blend-ratio-dependent manner, offering valuable insights for formulating plant-based emulsions.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139714"},"PeriodicalIF":5.4,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}