Shahzad Farooq , Muhammad Ijaz Ahmad , Abdullah , Usman Ali , Hui Zhang
{"title":"A review of recent trends in structuring oleogel-based emulsions for food applications","authors":"Shahzad Farooq , Muhammad Ijaz Ahmad , Abdullah , Usman Ali , Hui Zhang","doi":"10.1016/j.cocis.2025.101924","DOIUrl":"10.1016/j.cocis.2025.101924","url":null,"abstract":"<div><div>Oleogel emulsions, a hybrid system combining oleogelation and emulsification, have emerged as a groundbreaking innovation in colloidal science, providing sustainable and healthier alternatives for food formulation. In the broadest sense, oleogel emulsions can be structured by dispersing oleogels in water or vice versa, stabilized by interfacially adsorbed food-grade particles or entangled network structures that retard droplet–droplet coalescence and phase separation. This review aims to provide an up-to-date overview of various oil-structuring approaches, highlighting their properties, different types of oleogel-structured emulsions, and the stabilization mechanisms involved in the formation of oleogel emulsions. Specifically, the factors affecting the characteristics of oleogel emulsions are summarized, including oil types, oil/water ratios, oleogelators, emulsifiers, and processing parameters. Additionally, recent studies on the application of oleogel emulsions in food products are discussed. Currently, there are three main mechanisms responsible for stabilizing oleogel emulsions: Pickering particles, network stabilization, or a combination of both. The droplet size, physical stability, and rheological properties of oleogel emulsions are strongly influenced by the nature and concentration of the oleogelators used as they gel the oil phase, which helps achieve the desired thermomechanical and microstructural properties. Similarly, changes in the type of oils or oil/water ratios used directly impact the physicochemical properties of the systems. These structured emulsions have been widely used as fat substitutes in various food products such as ice cream, cakes, spreads, sausages, margarine, burgers, and peanut butters.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"78 ","pages":"Article 101924"},"PeriodicalIF":7.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184872","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":"Recent advances in fluorine-free functionalized nanomaterials for low-wettability applications","authors":"Donald Hill, Henry Apsey, Shirin Alexander","doi":"10.1016/j.cocis.2025.101922","DOIUrl":"10.1016/j.cocis.2025.101922","url":null,"abstract":"<div><div>The reduction in wettability afforded by applying superhydrophobic coatings onto substrate materials imbues many useful properties. This review presents recent research advancements of superhydrophobic surfaces formed from functionalised nanoparticles in some of their most promising applications. Silica and metal oxide nanoparticles can be readily functionalised with commercially available hydrophobic compounds to lower their surface energy and can be easily applied to materials with complicated forms and topographies using methods such as spraying or dipping, thus making the coating process adaptable to many situations. Advances in these coatings for imbuing icephobicity, corrosion resistance, self-cleaning, oil-in-water separation, and anti-biofouling behaviour are presented in this short review.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"78 ","pages":"Article 101922"},"PeriodicalIF":7.9,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090645","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}
Li-Hsuan Lin , Jotam Bergfreund , Peter Fischer , Pascal Bertsch
{"title":"Plant protein adsorption at oil–water interfaces: A mapping review using alternate subphase tensiometry","authors":"Li-Hsuan Lin , Jotam Bergfreund , Peter Fischer , Pascal Bertsch","doi":"10.1016/j.cocis.2025.101920","DOIUrl":"10.1016/j.cocis.2025.101920","url":null,"abstract":"<div><div>Plant proteins are rapidly emerging as functional food ingredients as a more sustainable and ethical alternative to established animal proteins, e.g., for the interfacial stabilization of emulsions and foams. To date, there is a large knowledge gap between plant and animal proteins, and it is often difficult to predict the interfacial performance of novel plant proteins, their individual fractions, and behavior as a function of processing conditions. Here, we introduce alternate subphase tensiometry (AST) as a novel method to map literature data on interfacial tension reduction of novel protein sources. We collected, compiled, and reanalyzed interfacial tension literature data from pea, soy, chickpea, lentil, faba bean, wheat, and microalgae protein. AST allows standardized plotting of literature data in uniform graphs, providing a rapid overview of the present data and pinpointing current gaps. Furthermore, grouped data can be readily singled out to identify promising protein fractions and effects of processing conditions such as pH, ionic strength, or pretreatments. Hence, AST is a powerful tool to summarize the existing data landscape, identify research gaps and particularly promising protein fractions, and ultimately predict the interfacial performance of plant proteins for interfacial stabilization of emulsions and foams.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"77 ","pages":"Article 101920"},"PeriodicalIF":7.9,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927683","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":"Designing tomorrow’s polymers: Enabling multiscale porous structures from high internal phase emulsions via additive manufacturing","authors":"Nihan Sengokmen-Ozsoz , Frederik Claeyssens","doi":"10.1016/j.cocis.2025.101921","DOIUrl":"10.1016/j.cocis.2025.101921","url":null,"abstract":"<div><div>Polymerized high internal phase emulsions (polyHIPEs) have been developed in the 1980s. However, thanks to the advancements in additive manufacturing (AM), they can now be used to produce multiscale porous materials. They were first used in light-based AM setups in 2013 and in extrusion-based AM in 2016. This review aims to analyze the synergy between polyHIPEs and AM technologies and provide a perspective on the use of HIPEs as printing resins/inks. It also demonstrates the potential of polyHIPEs in next-generation applications by creating multifunctional, porous materials capable of meeting the evolving demands of various industries.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"77 ","pages":"Article 101921"},"PeriodicalIF":7.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934997","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":"Open issues in the linear and NonLinear rheology of wormlike micelles","authors":"Rossana Pasquino , Rolando Castillo","doi":"10.1016/j.cocis.2025.101919","DOIUrl":"10.1016/j.cocis.2025.101919","url":null,"abstract":"<div><div>We review experimental evidence and theoretical/modeling approaches on Wormlike Micelles (WLMs) dynamics in linear and nonlinear regimes. We focus on recent works regarding the extraction of quantitative microscopic information from linear rheology data and the possibility of quantifying the fast relaxation processes. Models for WLMs undergoing reptation and chain sequence rearrangement are discussed. Strong shear and elongational flows that can cause interesting phenomena, <em>e.g</em>. chain scission, structure formation, and elastic instabilities in WLMs, are considered. More specifically, start-up shear flow in the nonlinear regime, LAOS experiments, and relative data treatment are discussed, together with shear-banding phenomena and their dynamics, inertio-elastic instabilities, and secondary flow. Different techniques for measuring WLMs in extensional flow are compared, referring in particular to the recent dripping-onto-substrate (DoS) extensional rheometry, which is able to address some shortcomings of the CaBER technique. We finally deal with the potential source of triggering flow profiles and secondary flows with fluid properties and external conditions.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"77 ","pages":"Article 101919"},"PeriodicalIF":7.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855834","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":"Hydrogel-based inks for extrusion 3D printing: A rheological viewpoint","authors":"Prachi Thareja , Sanchari Swarupa , Siraj Ahmad , Manasi Esther Jinugu","doi":"10.1016/j.cocis.2025.101918","DOIUrl":"10.1016/j.cocis.2025.101918","url":null,"abstract":"<div><div>Extrusion 3D printing has achieved significant progress, emerging as one of the most important 3D printing methods for designing biologically relevant organs or tissue substitutes by bioprinting cell-laden inks. Swollen polymeric networks, or hydrogels, have emerged as the preferred biomaterial for fabricating cell-encapsulated inks appropriate for layer-by-layer extrusion through nozzles. The design aspects of the hydrogels play a crucial role in determining the flow behavior of these inks. The review first overviews the fundamentals of rheological measurements in extrusion-based 3D printing, followed by hydrogel ink design approaches, and their implications on the rheological properties. We also discuss the effect of cell density on rheology and 3D bioprinting outcomes. We identify the existing challenges in the field of extrusion bioprinting and discuss future directions to address them.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"77 ","pages":"Article 101918"},"PeriodicalIF":7.9,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824180","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}
Patrick T. Spicer, Maryam Hosseini, Firoozeh Babayekhorasani
{"title":"Complex fluid product microstructure imaging with light sheet fluorescence microscopy","authors":"Patrick T. Spicer, Maryam Hosseini, Firoozeh Babayekhorasani","doi":"10.1016/j.cocis.2025.101916","DOIUrl":"10.1016/j.cocis.2025.101916","url":null,"abstract":"<div><div>Light sheet fluorescence microscopy (LSFM), uses a thin sheet laser illumination to rapidly image samples with greatly reduced photodamage versus previous techniques. The flexibility of the technique has powered significant advances in biology research by connecting length scales from individual cells to entire developmental embryos. For similar reasons, LSFM is poised to enhance mesoscale imaging of complex fluid microstructures in fundamental and commercial systems. This work introduces the LSFM technique and reviews some of its complex fluid applications along with examples of its use in food, biomaterial, and emulsion product samples. The technique is shown to nicely complement existing complex fluid characterization methods because of its breadth of length scale resolution and its lack of photobleaching effects. New product applications for LSFM are identified and discussed, suggesting additional integration with existing techniques.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"77 ","pages":"Article 101916"},"PeriodicalIF":7.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Noemi Gallucci , Ilaria De Cristofaro , Irene Russo Krauss , Gerardino D'Errico , Luigi Paduano
{"title":"Eco-sustainable delivery strategies to drive agriculture forward","authors":"Noemi Gallucci , Ilaria De Cristofaro , Irene Russo Krauss , Gerardino D'Errico , Luigi Paduano","doi":"10.1016/j.cocis.2025.101917","DOIUrl":"10.1016/j.cocis.2025.101917","url":null,"abstract":"<div><div>This review provides an overview of the different types of carriers for agriculture that have appeared in the literature in the last five years. The purpose is to highlight the development of increasingly performing and eco-friendly nanotechnology. The focus is on the advantages of using micro/nano-emulsions, polysaccharides micro/nanocarriers, and inorganic nanocarriers. The information gathered contributes to the development of carriers’ nanotechnology, allowing specific and controlled delivery while being minimally toxic for the environment and humans.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"77 ","pages":"Article 101917"},"PeriodicalIF":7.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manuel Abellán , Isabel Ciria-Ramos , Ignacio Gascón , Marta Haro , Emilio J. Juarez-Perez
{"title":"Progress in integrated photo-rechargeable battery technologies","authors":"Manuel Abellán , Isabel Ciria-Ramos , Ignacio Gascón , Marta Haro , Emilio J. Juarez-Perez","doi":"10.1016/j.cocis.2025.101915","DOIUrl":"10.1016/j.cocis.2025.101915","url":null,"abstract":"<div><div>Integrated photo-rechargeable battery systems represent a significant advancement in sustainable energy storage and conversion by combining photovoltaic energy harvesting with direct energy storage in a compact design. Although initially studied in the 1970s, interest in this field has surged in recent years. Due to the multidisciplinary nature of this topic, researchers from diverse backgrounds approach it with varying methodologies, resulting in highly diverse cell designs and inconsistent performance metrics. These variations complicate the comparison and evaluation of system efficiency and functionality. This review presents a comprehensive overview of the field's development and current state, from early photoelectrochemical approaches to modern integrated designs. Additionally, it addresses the challenge of performance evaluation by compiling current approaches to performance measurement and proposing standardized evaluation parameters under defined conditions. This dual focus on field overview and metrics standardization aims to provide both a thorough understanding of solar electrochemical energy storage technologies and a framework for their consistent evaluation, which is critical for advancing these technologies.</div></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"77 ","pages":"Article 101915"},"PeriodicalIF":7.9,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}