Current Opinion in Colloid & Interface Science最新文献_第8页

Finding the point of no return: Dynamical systems theory applied to the moving contact-line instability 寻找不归路点:动力系统理论在运动接触线不稳定性中的应用

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-01 DOI: 10.1016/j.cocis.2023.101724

J.S. Keeler , J.E. Sprittles

{"title":"Finding the point of no return: Dynamical systems theory applied to the moving contact-line instability","authors":"J.S. Keeler , J.E. Sprittles","doi":"10.1016/j.cocis.2023.101724","DOIUrl":"10.1016/j.cocis.2023.101724","url":null,"abstract":"<div><p>The wetting and dewetting of solid surfaces is ubiquitous in physical systems across a range of length scales, and it is well known that there are maximum speeds at which these processes are stable. Past this maximum, flow transitions occur, with films deposited on solids (dewetting) and the outer fluid entrained into the advancing one (wetting). These new flow states may be desirable, or not, and significant research effort has focused on understanding when and how they occur. Up until recently, numerical simulations captured these transitions by focussing on steady calculations. This review concentrates on advances made in the computation of the time-dependent problem, utilising dynamical systems theory. Facilitated via a linear stability analysis, unstable solutions act as ‘edge states’, which form the ‘point of no return’ for which perturbations from stable flow cease decaying and, significantly, show the system can become unstable before the maximum speed is achieved.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"67 ","pages":"Article 101724"},"PeriodicalIF":8.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359029423000493/pdfft?md5=887d864fcee72c55961c61d89770ff22&pid=1-s2.0-S1359029423000493-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82947489","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}

引用次数: 0

Adsorption layer and flow within liquid meniscus in forced dewetting 强制脱湿过程中液体半月板内的吸附层与流动

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-01 DOI: 10.1016/j.cocis.2023.101723

V.I. Kovalchuk , G.K. Auernhammer

引用次数: 0

Neutron techniques for food hydrocolloids 食品水胶体的中子技术

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-01 DOI: 10.1016/j.cocis.2023.101730

Elliot Paul Gilbert

引用次数: 0

Omega-3 fatty acid nanocarriers: Characterization and potential applications Omega-3脂肪酸纳米载体:表征和潜在的应用

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-01 DOI: 10.1016/j.cocis.2023.101728

Anan Yaghmur , Sana Ghayas , Habibullah Jan , Gokce Dicle Kalaycioglu , S. Moein Moghimi

{"title":"Omega-3 fatty acid nanocarriers: Characterization and potential applications","authors":"Anan Yaghmur , Sana Ghayas , Habibullah Jan , Gokce Dicle Kalaycioglu , S. Moein Moghimi","doi":"10.1016/j.cocis.2023.101728","DOIUrl":"10.1016/j.cocis.2023.101728","url":null,"abstract":"<div><p>Lyotropic non-lamellar liquid crystalline (LLC) nano-self-assemblies (including cubosomes and hexosomes) are attractive versatile platforms for the encapsulation and delivery of drugs and nutritional molecules. This is due to their unique structural features and architectural arrangements that afford loading of small molecules and macromolecules having different physicochemical properties with high efficiency. Considering the reported health-promoting effects of long-chain omega-3 polyunsaturated fatty acids (<em>ω</em>-3 PUFAs) and their precursors <em>ω</em>-3 PUFA monoacylglycerols; here, we focus on physicochemical and biological properties of a new family of non-lamellar LLC nanoparticles assembled either from binary mixtures of phosphatidylglycerol and three types of <em>ω</em>-3 PUFAs, or from single <em>ω</em>-3 PUFA monoacylglycerols. We discuss recent progress in understanding their complexity, pH sensitivity, and structural tunability, as well as highlight their potential applications in health and medicine.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"67 ","pages":"Article 101728"},"PeriodicalIF":8.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359029423000535/pdfft?md5=fa4e868d4a6aed6c5379ce7f88575b10&pid=1-s2.0-S1359029423000535-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77252509","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}

引用次数: 0

Tailoring wettability to push the limits of condensation 定制润湿性，以推动凝结的极限

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-01 DOI: 10.1016/j.cocis.2023.101739

Jianxing Sun , Patricia B. Weisensee

{"title":"Tailoring wettability to push the limits of condensation","authors":"Jianxing Sun , Patricia B. Weisensee","doi":"10.1016/j.cocis.2023.101739","DOIUrl":"10.1016/j.cocis.2023.101739","url":null,"abstract":"<div><p><span><span>Wetting plays a crucial role in achieving efficient condensation in applications such as atmospheric water harvesting, air conditioning and refrigeration, and </span>thermal power<span> plants. Despite decades of research, the industrial implementation of dropwise condensation, which is often superior to filmwise condensation, has been limited, mostly due to the poor durability of promoter coatings and the challenge of achieving dropwise condensation for non-aqueous working fluids. Both areas have seen noteworthy advancements over the past few years, some of which we highlight in this review article. For example, recognizing that contact angle hysteresis, not contact angles </span></span><em>per se</em><span>, are responsible for enabling dropwise condensation, ultra-smooth liquid-like polymer coatings<span> and lubricant-infused surfaces were developed for use with water and non-aqueous working fluids. There are also several new developments for passive and active droplet removal. Advances in coating durability include a better understanding in the failure mechanisms and physics-informed designs of new coating processes<span> and chemistries.</span></span></span></p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"67 ","pages":"Article 101739"},"PeriodicalIF":8.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79895282","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}

引用次数: 0

Forced flows in liquid bridges 液体桥的强制流动

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-01 DOI: 10.1016/j.cocis.2023.101738

Ilia V. Roisman , Mohammad Abboud , Philipp Brockmann , Fiona Berner , Rüdiger Berger , Pauline Rothmann-Brumm , Hans Martin Sauer , Edgar Dörsam , Jeanette Hussong

{"title":"Forced flows in liquid bridges","authors":"Ilia V. Roisman , Mohammad Abboud , Philipp Brockmann , Fiona Berner , Rüdiger Berger , Pauline Rothmann-Brumm , Hans Martin Sauer , Edgar Dörsam , Jeanette Hussong","doi":"10.1016/j.cocis.2023.101738","DOIUrl":"10.1016/j.cocis.2023.101738","url":null,"abstract":"<div><p>Wetting of solid surfaces by liquid deposition, contact dispensing, drop transfer, collision of wet particles, or during coating processes is often accompanied by the formation of liquid bridges between two or more solid substrates. They appear in many applications, like material science, microfluidics, biomedical, chemical, or aerospace engineering, and different fields of physics. In this study, the flows accompanying lifting of a Hele-Shaw cell, stretching or shearing of a liquid bridge, as well as liquid bridge flows observed during printing processes and other important applications, are briefly reviewed. Such flows are governed by surface tension, inertia, stresses associated with the liquid rheology, and forces caused by the substrate's wettability. Instabilities of liquid bridges lead to the formation of finger-like structures on the substrate or the appearance of cavities at the wetted region of the wall. The time required for jet pinch-off also determines the residual liquid volume on both solid bodies.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"67 ","pages":"Article 101738"},"PeriodicalIF":8.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359029423000638/pdfft?md5=5f399cdb22de7c2d0f7f0ca801cb80e5&pid=1-s2.0-S1359029423000638-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75400659","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}

引用次数: 0

Immune-active polymeric materials for the treatment of inflammatory diseases 用于治疗炎性疾病的免疫活性高分子材料

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-01 DOI: 10.1016/j.cocis.2023.101726

Kat M. Lazar, Shamitha Shetty, Ashutosh Chilkoti, Joel H. Collier

引用次数: 0

Protein nanocage engineering for Pickering emulsions and potential food applications 用于皮克林乳液和潜在食品应用的蛋白质纳米笼工程

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-09-28 DOI: 10.1016/j.cocis.2023.101761

Samuel Watts, Chase Jia Jing Chow, Sierin Lim

{"title":"Protein nanocage engineering for Pickering emulsions and potential food applications","authors":"Samuel Watts, Chase Jia Jing Chow, Sierin Lim","doi":"10.1016/j.cocis.2023.101761","DOIUrl":"10.1016/j.cocis.2023.101761","url":null,"abstract":"<div><p><span>Protein nanocages used as emulsion stabilizing colloidal particles are opening possibilities to the design of novel delivery systems for food, pharmaceutical and cosmetic applications. Protein nanocage-stabilized emulsions are able to co-deliver hydrophilic and hydrophobic compounds. The surface chemistry of the particles is one of the factors that determines their ability to stabilize the emulsion. Hence, the importance in developing strategies to rationally tailor the nanocage surface chemistry. This contribution summarizes recent advances in protein nanocage </span>Pickering emulsions and the methods used to modify the nanocages. It discusses future strategies that may allow the modification of protein nanocages based on current knowledge of Pickering emulsions and protein nanocage engineering technology. The characterization methods for the investigation of these protein nanocages and nanocage stabilized emulsions are described. Finally, the applications of protein nanocages for nutrient delivery in the gastrointestinal tract will be discussed. This contribution provides a perspective for future work on protein nanocage stabilized emulsions.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"69 ","pages":"Article 101761"},"PeriodicalIF":8.9,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134995253","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}

引用次数: 0

Utilization of hydrocolloids for the stabilization of pigments from natural sources 水胶体在天然色素稳定中的应用

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-09-14 DOI: 10.1016/j.cocis.2023.101756

Valeria Weiss, Zoya Okun, Avi Shpigelman

{"title":"Utilization of hydrocolloids for the stabilization of pigments from natural sources","authors":"Valeria Weiss, Zoya Okun, Avi Shpigelman","doi":"10.1016/j.cocis.2023.101756","DOIUrl":"https://doi.org/10.1016/j.cocis.2023.101756","url":null,"abstract":"<div><p><span><span>Natural pigments provide a range of appealing colors to flowers, fruits, and vegetables while exhibiting potential beneficial health effects. In contrast, synthetic food colorants are often suggested to be associated with adverse health effects yet are known to have relatively high color stability during processing and storage. Unlike artificial colorants, natural pigments are somewhat unstable and susceptible to chemical and enzymatic degradation, leading to enhanced color loss. Therefore, their use as pigments is constrained, and stabilization by </span>hydrocolloids<span> is being explored. In addition to the texturizing properties of hydrocolloids, they can interact with natural pigments, affecting their stability. Therefore, hydrocolloids can improve the chemical and physical stability of pigments, resulting in enhanced color stability. This review summarizes up-to-date information regarding the stabilization of natural pigments such as anthocyanins, </span></span>betalains<span>, carotenes, C-phycocyanins, and chlorophylls, using hydrocolloids, in relation to the hydrocolloid properties, pigment structure, and stabilization methods and mechanisms.</span></p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"68 ","pages":"Article 101756"},"PeriodicalIF":8.9,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91984975","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}

引用次数: 2

Are microbial biosurfactants actually only surfactants? 微生物生物表面活性剂实际上只是表面活性剂吗?

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-09-07 DOI: 10.1016/j.cocis.2023.101747

Niki Baccile

{"title":"Are microbial biosurfactants actually only surfactants?","authors":"Niki Baccile","doi":"10.1016/j.cocis.2023.101747","DOIUrl":"10.1016/j.cocis.2023.101747","url":null,"abstract":"<div><p>The term <span><em>biosurfactants</em></span><span><span> refers to a complex mixture of metabolites with surface-active properties produced by specific microorganisms. However, nowadays trends moves towards isolation, screening and purifying single biocompatible, biodegradable biosurfactants with high commercialisation potential. Current legislation limiting </span>petrochemicals combined with environmentally concerned consumers did not only stimulate research and development but it also promoted large-scale production of this class of molecules. However, recent data recorded on single congeners question the actual pertinence of using the word ‘</span><em>biosurfactant</em>’ associated to these molecules. By evaluating the accepted characteristics of <span><em>surfactants</em></span> and comparing them to the actual self-assembly and bulk properties in water of molecules traditionally called ‘<em>biosurfactants</em>’, this opinion article aims at showing that the term ‘<em>biosurfactant</em>’ can be somewhat reductive when applied to specific individual compounds produced by fermentation. The use of a more generic term, like <em>bioamphiphile</em> could probably be more pertinent and appropriate for consideration in the future.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"68 ","pages":"Article 101747"},"PeriodicalIF":8.9,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90697979","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}

引用次数: 0