Soft Matter最新文献_第10页

Phase behavior of binary mixtures of hollow and regular microgels† 空心和规则微凝胶二元混合物的相行为。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-04 DOI: 10.1039/D4SM00862F

Alexander V. Petrunin, Tom Höfken, Stefanie Schneider, Pablo Mota-Santiago, Judith E. Houston and Andrea Scotti

引用次数: 0

Correction: Flow and clogging of capillary droplets 更正：毛细管液滴的流动和堵塞。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-03 DOI: 10.1039/D4SM90160F

Yuxuan Cheng, Benjamin F. Lonial, Shivnag Sista, David J. Meer, Anisa Hofert, Eric R. Weeks, Mark D. Shattuck and Corey S. O’Hern

引用次数: 0

Nanoconfinement effects on the dynamics of an ionic liquid-based electrolyte probed by multinuclear NMR† 多核核磁共振探测离子液体电解质动力学的纳米纤化效应。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-03 DOI: 10.1039/D4SM01058B

Andrei Filippov, Maiia Rudakova, Victor P. Archipov and Faiz Ullah Shah

{"title":"Nanoconfinement effects on the dynamics of an ionic liquid-based electrolyte probed by multinuclear NMR†","authors":"Andrei Filippov, Maiia Rudakova, Victor P. Archipov and Faiz Ullah Shah","doi":"10.1039/D4SM01058B","DOIUrl":"10.1039/D4SM01058B","url":null,"abstract":"The measurement of ion diffusivity inside nanoporous materials by Pulsed-Field Gradient (PFG) NMR is not an easy task due to enhanced NMR relaxation. Here, we employed multinuclear (1H, 31P, and 7Li) NMR spectrometry and diffusometry to probe ion dynamics of a fluorine-free battery electrolyte comprising the [P4,4,4,4][MEEA] ionic liquid (IL) and LiMEEA salt in a 7 : 3 molar ratio, confined in three different nanoporous SiO2 glasses with pore diameters of 3.7, 7 and 98 nm. Confinement of the electrolyte leads to NMR resonance line broadening and variation in the 31P and 7Li NMR chemical shifts. The complicated diffusion decays are explained taking into consideration the complex porous structure of the porous glasses, the presence of pore “necks” and the “partially isolated volumes” containing the liquid, which is in a “slow exchange” regime with the rest of the liquid. The mean apparent diffusivity is controlled by the exchange of ions between the “narrow” and the “large” pores and the boundary separating these pores to measure diffusion coefficients by PFG NMR is in the range of pore sizes of Vycor and Varapor. The temperature-dependent ion diffusivities in the “large” pores deviate from the Arrhenius law and the exchange of diffusing units between the “narrow” and the “large” pores leads to abnormal temperature-dependent diffusion coefficients. Like the bulk, diffusivity of the small Li+ is slower than that of the larger organic ions in the confinement, demonstrating the solvation of Li+ inside the pores.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" 42","pages":" 8436-8445"},"PeriodicalIF":2.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/sm/d4sm01058b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Adhesion of a nematic elastomer cylinder. 向列弹性体圆柱体的附着力。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-03 DOI: 10.1039/d4sm00606b

Neda Maghsoodi, Kaushik Bhattacharya

引用次数: 0

Dip coating of shear-thinning particulate suspensions† 剪切稀化颗粒悬浮液的浸涂。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-02 DOI: 10.1039/D4SM00941J

D. Ding, C. T. Gabbard and J. B. Bostwick

{"title":"Dip coating of shear-thinning particulate suspensions†","authors":"D. Ding, C. T. Gabbard and J. B. Bostwick","doi":"10.1039/D4SM00941J","DOIUrl":"10.1039/D4SM00941J","url":null,"abstract":"Dip coating a planar substrate with a suspension of particles in a shear-thinning liquid will entrain particles in the liquid film, facilitating filtration and sorting of particles. Experiments were performed for both monodisperse and bidisperse particle suspensions of shear-thinning Xanthan Gum solutions. Particle entrainment occurs when the coating thickness at the stagnation point of the thin film flow is larger than the particle diameter. A model is developed to predict the entrainment criteria using lubrication theory applied to an Ostwald power-law fluid which yields a modified Landau–Levich–Derjaguin (LLD) law governing the coating film thickness that depends upon a properly defined capillary number Ca. The critical withdrawal velocity for particle entrainment depends upon the particle size and fluid rheology through a relationship between Ca and the bond number Bo, which agrees well with our model predictions and prior experimental results of A. Sauret et al. Phys. Rev. Fluids, 2019, 4, 054303 for the limiting case of Newtonian suspensions. Single particle entrainment and particle clustering is observed for monodisperse suspensions, which depends on Ca and the particle volume fraction ϕ. In bidisperse suspensions, particle sorting can occur whereby only the smaller particles are entrained in the film over an active filtration range of Ca and Bo, which also agrees well with our model predictions.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" 40","pages":" 8068-8077"},"PeriodicalIF":2.9,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/sm/d4sm00941j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Dynamics of phase-separated microdroplets near the contact line of evaporating all-aqueous drops† 蒸发全水滴接触线附近相分离微滴的动力学。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-02 DOI: 10.1039/D4SM01056F

Rahul Rai, Maheshwar Gopu, Senthan Pugalneelam Parameswaran, Tapan Chandra Adhyapak and Dileep Mampallil

引用次数: 0

The relationship between the secondary structure and the emulsifying ability of protein-based particles and the Pickering emulsions stabilized by the zein–lysine complex† 蛋白质颗粒的二级结构与乳化能力之间的关系，以及由玉米蛋白-赖氨酸复合物稳定的皮克林乳液。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-02 DOI: 10.1039/D4SM00394B

Yijie Wang, Yunze Tian, Yunpeng Xie, Yue Sun, Ting Li, Xuhui Zhang, Yang Wang, Jing Huang, Bihua Xia, Shibo Wang and Weifu Dong

{"title":"The relationship between the secondary structure and the emulsifying ability of protein-based particles and the Pickering emulsions stabilized by the zein–lysine complex†","authors":"Yijie Wang, Yunze Tian, Yunpeng Xie, Yue Sun, Ting Li, Xuhui Zhang, Yang Wang, Jing Huang, Bihua Xia, Shibo Wang and Weifu Dong","doi":"10.1039/D4SM00394B","DOIUrl":"10.1039/D4SM00394B","url":null,"abstract":"Due to the sustainability and widespread use of proteins, protein-based materials are extensively utilized in the preparation of Pickering emulsions. However, the relationship between the secondary structure of proteins and their emulsifying ability has not been further investigated. This study used the addition of three different amino acids to influence the interaction between zein chains, which may induce changes in the secondary structure of the prepared zein complex particles. This study demonstrates that the emulsifying properties of proteins, such as dispersibility, zeta potential, three-phase contact angles, interfacial affinity, adsorption rates, and the volume of the stabilized oil phase, are closely related to the β-sheet content of the complex particles, providing a theoretical reference for protein-based stabilizers. Additionally, amino acids, as the blocks of proteins, have high compatibility with proteins, and using amino acids as modifiers aligns with the safety requirements for food processing. In this study, the prepared zein–lysine complex particles have good emulsifying ability, capable of stabilizing a 50 (v/v)% emulsion at a lower concentration (10 mg mL−1), and the prepared emulsion exhibits high-temperature stability and ionic resistance. This characteristic makes the emulsion potentially valuable for application in systems with high salt concentrations and those that may undergo heat treatment.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" 40","pages":" 8089-8097"},"PeriodicalIF":2.9,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Organic/inorganic heterostructures templated by interfacial instability-driven BCP colloids in deformable emulsion droplets† 可变形乳液液滴中由界面不稳定性驱动的 BCP 胶体模板化的有机/无机异质结构。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-01 DOI: 10.1039/D4SM00921E

Yuqing Song, Nan Yan, Lingli Wan, Jingjing Li and Ye Gao

{"title":"Organic/inorganic heterostructures templated by interfacial instability-driven BCP colloids in deformable emulsion droplets†","authors":"Yuqing Song, Nan Yan, Lingli Wan, Jingjing Li and Ye Gao","doi":"10.1039/D4SM00921E","DOIUrl":"10.1039/D4SM00921E","url":null,"abstract":"Hybrid heterostructure materials have received considerable attention due to the integration of each component and abundant functional applications in micromotors, catalysis, photothermal therapy, drug delivery, and bioimaging. However, the preparation of organic/inorganic heterostructure nanoparticles (HSNPs) with high quality still remains a remarkable challenge since thermodynamically metastable structures usually coexist, resulting in a lack of organic scaffolds with extreme uniformity both in shape and size distribution. Here, we prepared polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP) core–shell spherical colloids driven by interfacial instability of soft and deformable emulsion droplets. Ultra-low interfacial tension was achieved through the co-adsorption of BCP segments and sodium dodecyl sulfate (SDS) surfactant, which had a strong affinity with the P4VP segment at the interface of the emulsified droplets. The excellent and homogeneous BCP colloids were further utilized as organic scaffolds to selectively grow a functional SiO2 layer on the surface of the BCP spherical colloids, producing BCP/SiO2 HSNPs with highly uniform shape and size distribution originating from the PS-b-P4VP scaffolds, thus providing an efficient and general strategy to construct and design organic/inorganic HSNPs with diverse applications.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" 41","pages":" 8174-8180"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Viologen-based supramolecular crystal gels: gelation kinetics and sensitivity to temperature 基于 Viologen 的超分子晶体凝胶：凝胶化动力学和对温度的敏感性。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-01 DOI: 10.1039/D4SM00826J

Julien Bauland, Vivien Andrieux, Frédéric Pignon, Denis Frath, Christophe Bucher and Thomas Gibaud

{"title":"Viologen-based supramolecular crystal gels: gelation kinetics and sensitivity to temperature","authors":"Julien Bauland, Vivien Andrieux, Frédéric Pignon, Denis Frath, Christophe Bucher and Thomas Gibaud","doi":"10.1039/D4SM00826J","DOIUrl":"10.1039/D4SM00826J","url":null,"abstract":"Supramolecular crystal gels, a subset of molecular gels, are formed through the self-assembly of low molecular weight gelators into interconnecting crystalline fibers, creating a three-dimensional soft solid network. This study focuses on the formation and properties of viologen-based supramolecular crystalline gels. It aims to answer key questions about the tunability of network properties and the origin of these properties through in-depth analyses of the gelation kinetics triggered by thermal quenching. Experimental investigations, including UV-Vis absorption spectroscopy, rheology, microscopy and scattering measurements, contribute to a comprehensive and self-consistent understanding of the system kinetics. We confirm that viologen-based gelators crystallize by forming nanometer radius hollow tubes that assemble into micro to millimetric spherulites. We then show that crystallization follows the Avrami theory and is based on pre-existing nuclei. We also establish that the growth is interface-controlled, leading the hollow tubes to branch into spherulites with fractal structures. Finally, we demonstrate that the gel properties can be tuned depending on the quenching temperature. Lowering the temperature results in the formation of denser and smaller spherulites. In contrast, the gel's elasticity is not significantly affected by the quench temperature, leading us to hypothesize that the densification of spherulites occurs at the expense of connectivity between spherulites.","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" 41","pages":" 8278-8290"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142386485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Revealing microscale bulk structures in polymer–carbon nanocomposites using spin-echo SANS 利用自旋回波 SANS 揭示聚合物-碳纳米复合材料中的微观块体结构。

IF 2.9 3区化学

Soft Matter Pub Date : 2024-10-01 DOI: 10.1039/D4SM00578C

L. V. Tiihonen, M. P. Weir, A. J. Parnell, S. C. Boothroyd, D. W. Johnson, R. M. Dalgliesh, M. Bleuel, C. P. Duif, W. G. Bouwman, R. L. Thompson, K. S. Coleman, N. Clarke, W. A. Hamilton, A. L. Washington and S. R. Parnell

引用次数: 0