Colloid Journal最新文献_第2页

Gradient-Free Method for Determining Sessile Drop Parameters 无梯度法测定固定滴参数

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-03-18 DOI: 10.1134/S1061933X25601076

A. A. Sokurov

引用次数: 0

Temperature-Regulated Surface Properties of Membranes Based on Concentrated Silver Sol Stabilized by AOT in n-Decane 正癸烷AOT稳定浓银溶胶膜的温控表面性能

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-03-18 DOI: 10.1134/S1061933X2560112X

A. N. Kolodin

引用次数: 0

Optimization of the Composition of Solid Lipid Nanoparticles for Delivery of an Antiarrhythmic Drug, Allapinin 固体脂质纳米颗粒递送抗心律失常药物Allapinin的组成优化

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-03-18 DOI: 10.1134/S1061933X25601210

A. A. Shalybkova, Yu. I. Oshchepkova, I. M. Le-Deigen, N. A. Kozyrev, N. L. Klyachko, Sh. I. Salikhov

{"title":"Optimization of the Composition of Solid Lipid Nanoparticles for Delivery of an Antiarrhythmic Drug, Allapinin","authors":"A. A. Shalybkova, Yu. I. Oshchepkova, I. M. Le-Deigen, N. A. Kozyrev, N. L. Klyachko, Sh. I. Salikhov","doi":"10.1134/S1061933X25601210","DOIUrl":"10.1134/S1061933X25601210","url":null,"abstract":"The development of new prolonged forms of antiarrhythmic drugs with improved biopharmaceutical properties is an urgent problem today. This study proposes a method for loading a poorly soluble antiarrhythmic drug, allapinin, into solid lipid nanoparticles of variable compositions to solve this problem. The parameters of the method for producing the solid lipid nanoparticles by temperature-induced phase inversion are optimized. The hydrodynamic characteristics of the particles and their stability to aggregation are assessed using dynamic light scattering. The systems based on stearic acid and a surfactant, Brij 56, have the best characteristics. The drug loading efficiency is almost 100%. FTIR spectroscopy data have revealed that the incorporation of allapinin into the particle cores leads to the formation of noncovalent bonds with the polar moiety of stearic acid. The prolonged release of allapinin from the particles in sodium phosphate buffer at the physiological temperature of 37°C has been shown. The data obtained may provide the foundation for the development of a novel allapinin formulation with enhanced biopharmaceutical characteristics.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 2","pages":"247 - 256"},"PeriodicalIF":1.1,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Simulation of the Thermocapillary Assembly of a Colloidal Cluster during the Evaporation of a Liquid Film in an Unevenly Heated Cell 不均匀加热电池中液体膜蒸发过程中胶体团热毛细组装的模拟

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-03-18 DOI: 10.1134/S1061933X25601465

K. N. Kondrashova, K. S. Kolegov, I. V. Vodolazskaya

{"title":"Simulation of the Thermocapillary Assembly of a Colloidal Cluster during the Evaporation of a Liquid Film in an Unevenly Heated Cell","authors":"K. N. Kondrashova, K. S. Kolegov, I. V. Vodolazskaya","doi":"10.1134/S1061933X25601465","DOIUrl":"10.1134/S1061933X25601465","url":null,"abstract":"The control of the thermocapillary assembly of colloidal particle clusters is important for a variety of applications, including the creation of photonic crystals for microelectronics and optoelectronics, membrane formation for biotechnology, and surface cleaning for laboratory-on-chip devices. The aim of the current work is to understand the main mechanisms influencing the assembly of such clusters, which are the object of our research. Here we consider a two-dimensional mathematical model describing the transfer of particles by a thermocapillary flow in an unevenly heated cell during the evaporation of a liquid. This gave us the opportunity to study one of the main processes that triggers the formation of a particle cluster. Whether the particle will move with the flow or stop at the heater, becoming the basis for the cluster, is determined by the ratio between gravity and the drag force. The results of numerical calculations show that, for small particle concentrations, their fraction entering the cluster decreases as the volumetric heat flux density Q increases. The reason for this is an increase in the thermocapillary flow with an increase in the volumetric heat flux Q. In our conclusion, it reduces the probability of particles entering the cluster.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 2","pages":"147 - 157"},"PeriodicalIF":1.1,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The Effect of Adsorption Film Thickness on the Shape of the Interface Between Immiscible Liquids in a Flat Slitlike Pore 吸附膜厚度对平缝状孔中不混相液体界面形状的影响

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-03-18 DOI: 10.1134/S1061933X25601441

A. A. Semenchuk, I. K. Bakulin, K. M. Gerke, N. D. Kondratyuk, I. V. Kopanichuk

{"title":"The Effect of Adsorption Film Thickness on the Shape of the Interface Between Immiscible Liquids in a Flat Slitlike Pore","authors":"A. A. Semenchuk, I. K. Bakulin, K. M. Gerke, N. D. Kondratyuk, I. V. Kopanichuk","doi":"10.1134/S1061933X25601441","DOIUrl":"10.1134/S1061933X25601441","url":null,"abstract":"In this paper, the influence of a wetting liquid adsorption film on the interface morphology and equilibrium kinetics in a solid–liquid–liquid three-phase system located in a slit pore is investigated. Analytical equations are obtained for six possible types of interfacial aggregates at a nonzero adsorption film thickness. The equations describe the surface area of an aggregate, the admissible volume fractions of the nonwetting phase, and the density profiles. Construction of the stability diagram has shown that an increase in the adsorption film thickness narrows the existence region of the of the “worm” type aggregates with the formation of a discontinuity between the “worm” and “roll” regions. The correctness of the density profiles has been confirmed by synthetic data. Molecular dynamics simulation of the calcite–water–n-decane system has revealed that the initial adsorption film of water reduces the time of equilibrium establishment by a factor of two. The presence of the initial layer may lead the system to a local minimum with a higher energy, while imposing no effect on the aggregate shape. Approximating the number density profile by the analytical expression, it has been shown that the adsorption film thickness converges to the equilibrium value regardless of the initial conditions. Thus, allowance for the presence of the adsorption layer is of critical significance for the correct description of aggregate shapes and optimization of simulation time.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 2","pages":"211 - 221"},"PeriodicalIF":1.1,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Cryostructuring of Polymeric Systems. 70. Influence of Aqueous Solutions of Strong Mineral Acids on Physicochemical Properties and Microstructure of Poly(vinyl alcohol) Cryogels 高分子体系的低温结构。强无机酸水溶液对聚乙烯醇冷冻材料理化性质和微观结构的影响

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-03-18 DOI: 10.1134/S1061933X25601209

V. I. Lozinsky, A. I. Runtso, E. V. Sorokina, O. Yu. Kolosova

{"title":"Cryostructuring of Polymeric Systems. 70. Influence of Aqueous Solutions of Strong Mineral Acids on Physicochemical Properties and Microstructure of Poly(vinyl alcohol) Cryogels","authors":"V. I. Lozinsky, A. I. Runtso, E. V. Sorokina, O. Yu. Kolosova","doi":"10.1134/S1061933X25601209","DOIUrl":"10.1134/S1061933X25601209","url":null,"abstract":"Noncovalent (physical) macroporous poly(vinyl alcohol) cryogels (PVACGs) formed by the freezing–defrosting technique without the use of chemical cross-linking reagents are of significant interest as biomedical materials. For their safe use in medicine, it is necessary to ensure reliable sterility of the corresponding processes and products. In this study, PVACGs are prepared by freezing 100 g/L aqueous solutions of this polymer at –20°C for 12 h followed by defrosting at a heating rate of 0.03°C/min. Then, the resulting cryogels are treated with 1–4 N solutions of strong mineral acids (HCl, H2SO4, and H3PO4) and both the character of changes in the physicochemical properties and microstructure of the gel matrix caused by the action of these acids, as well as the possibility of their use for the sterilization of PVACGs, are assessed. It has been shown that HCl solutions cause significant swelling and softening of the gel matrix up to its complete dissolution in 4 N HCl. On the contrary, the treatment of the cryogels with aqueous solutions of H2SO4 or H3PO4 leads to an increase in the elasticity and heat endurance of these cryogels. Tests of the sterilizing properties of such acidic solutions with respect to the cells of microorganisms (bacteria, yeasts, mycelial fungi) incorporated into the cryogels have revealed the high efficiency of this approach, which is attractive especially from the viewpoints of both the simplicity of the treatment itself and the financial viability in the case of using aqueous solutions of sulfuric acid.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 2","pages":"158 - 172"},"PeriodicalIF":1.1,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Characterization and Biological Activity of Silver Nanoparticles Stabilized by Aqueous Extracts of Rubusspp. Leaves 水提物稳定银纳米粒子的表征及生物活性。叶子

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-02-02 DOI: 10.1134/S1061933X25600988

Marija S. Tasić, Jelena B. Zvezdanović, Ljiljana P. Stanojević, Jelena S. Stanojević, Sanja M. Petrović, BojanaDanilović, Dragan J. Cvetković

{"title":"Characterization and Biological Activity of Silver Nanoparticles Stabilized by Aqueous Extracts of Rubusspp. Leaves","authors":"Marija S. Tasić, Jelena B. Zvezdanović, Ljiljana P. Stanojević, Jelena S. Stanojević, Sanja M. Petrović,  BojanaDanilović, Dragan J. Cvetković","doi":"10.1134/S1061933X25600988","DOIUrl":"10.1134/S1061933X25600988","url":null,"abstract":"Silver nanoparticles (AgNPs–E) biosynthesized at room and boiling T, stabilized by blackberry plant extracts (E) obtained by maceration at room T and reflux extraction at boiling T, are presented in this work. The obtained AgNPs–E were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), dynamic light scattering (DLS) and zeta-potential measurement. XRD analysis confirmed that the 2θ peak at 38.2°, corresponding to the (111) plane, was the most intense, with the average crystallite size in the range of 18.0 ± 3–21.1 ± 2 nm. SEM spectroscopy showed that spherical shapes of nanoparticles dominate in the reaction mixture. EDX spectroscopy showed the presence of elemental silver in the formed AgNPs–E, along with the presence of C and Mg, which probably originate from the biomolecules of the extracts. DLS provides the size distribution with the average particle size in the range of 50.93 ± 0.83–74.48 ± 1.84 nm, with negative zeta-potential ranged from –25.87 ± 1.63 to –0.3027 ± 0.36 mV indicating the AgNPs stability. The antimicrobial activity of AgNPs–E was tested by microdilution method confirming that both nanoparticles and extracts show the ability to inhibit all the bacteria and a fungus tested. The presented results suggest further investigations of synthesized AgNPs–E for application in topical cosmetic preparations.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 1","pages":"68 - 79"},"PeriodicalIF":1.1,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Tribological Properties and Microstructure Changes of UHMWPE Surface Induced by Water Absorption 吸水致超高分子量聚乙烯表面摩擦学性能及微观结构变化

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-02-02 DOI: 10.1134/S1061933X25600757

Linqiang Tao, Ting Zheng, Zicheng Jiang, Changle Sun

{"title":"Tribological Properties and Microstructure Changes of UHMWPE Surface Induced by Water Absorption","authors":"Linqiang Tao, Ting Zheng, Zicheng Jiang, Changle Sun","doi":"10.1134/S1061933X25600757","DOIUrl":"10.1134/S1061933X25600757","url":null,"abstract":"Ultra-high molecular weight polyethylene (UHMWPE) has become the preferred material for joint liners due to its excellent wear resistance and chemical stability. This study provides a basic investigation into how water absorption influences the tribological behavior and mechanical characteristics of UHMWPE. The surface plastic deformation layer formed during UHMWPE wear was found to exhibit significant changes after water absorption. Experimental results demonstrate that water absorption not only reduces the friction coefficient of the material by 7.79%, but also exacerbates plastic deformation, resulting in an increase of wear up to 4-fold compared to the control group. Raman spectroscopy analysis further confirmed a notable rise in surface crystallinity after water absorption. Indentation tests show water absorption decreases indentation depth. Molecular simulation results suggest that water absorption in UHMWPE chains tends to reduce the inter-molecular interactions and thereby facilitates the formation of ordered arrangements of surface polyethylene, leading to an anisotropic distribution, i.e., ordered alignment in parallel to the frictional direction, and anisotropic mechanical properties. The anisotropic distribution of surface polymer chains during friction, which was also strengthened after water absorption, in turn increases the resistance to indention. The investigation results of the tribological properties and mechanical characteristics of water-absorbed UHMWPE may provide useful insights for the evaluation and performance of artificial joints.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 1","pages":"52 - 67"},"PeriodicalIF":1.1,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Eco-Responsive Biosynthesis of Silver Nanoparticles Using Chenopodium album: Influence of Environmental Parameters and pH 环境参数和pH值的影响

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-02-02 DOI: 10.1134/S1061933X25600964

Swarnima Tiwari, Anirudh Srivastava, Malik Abdul Rub

{"title":"Eco-Responsive Biosynthesis of Silver Nanoparticles Using Chenopodium album: Influence of Environmental Parameters and pH","authors":"Swarnima Tiwari, Anirudh Srivastava, Malik Abdul Rub","doi":"10.1134/S1061933X25600964","DOIUrl":"10.1134/S1061933X25600964","url":null,"abstract":"This study reports the eco-friendly synthesis of silver nanoparticles (AgNPs) using Chenopodium album (CA) leaf extract and evaluates their antifungal efficacy against Rhizoctonia solani. UV–Vis spectroscopy confirmed nanoparticle formation through pH- and extract volume-dependent red-shifts in surface plasmon resonance (SPR) peaks (405–435 nm), indicative of increased particle size and yield. Tauc plot analysis revealed a non-linear band gap variation (2.97 to 2.58 eV), reflecting quantum confinement effects influenced by pH. XRD patterns confirmed the crystalline nature and FCC structure of the AgNPs, while DLS and TEM analyses showed particle growth from 16.36 nm (pH 6) to 78.26 nm (pH 12), accompanied by morphological shifts and aggregation. Zeta potential values decreased from –30.92 to –14.75  mV, indicating reduced colloidal stability under alkaline conditions. In vitro assays demonstrated significant mycelial growth inhibition (MGI), with up to 91% suppression at pH 12 using 1.0 mL of CA extract. EC50 values confirmed enhanced dose- and pH-dependent antifungal potency. Notably, seasonal and temporal cues critically shaped the biosynthesis of CA-AgNPs; spring in Meerut (25°C, 55% RH) yielded ultra-small, stable particles (26 nm, SPR 410 nm) and peak antifungal performance (MGI 89%). These findings reveal how nature’s rhythm–via temperature, humidity, and harvest timing–can be harnessed to fine-tune nanoparticle functionality, presenting a promising green route for antifungal nanomaterial development.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 1","pages":"80 - 97"},"PeriodicalIF":1.1,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Sorption of Thiocyanate Ions on Cr–Polymer Composite and Obtaining a New Sorbent cr -聚合物复合材料对硫氰酸盐离子的吸附及新型吸附剂的制备

IF 1.1 4区化学

Colloid Journal Pub Date : 2026-02-02 DOI: 10.1134/S1061933X25601088

V. Gutsanu, V. Costis

{"title":"Sorption of Thiocyanate Ions on Cr–Polymer Composite and Obtaining a New Sorbent","authors":"V. Gutsanu, V. Costis","doi":"10.1134/S1061933X25601088","DOIUrl":"10.1134/S1061933X25601088","url":null,"abstract":"The sorption of thiocyanate ions under various conditions on a Cr–polymer composite and, for comparison, on a strongly basic anion exchanger Purolite A-400(Cl) was studied. Temperature has a significant effect on sorption on the composite and a minor effect on Purolite A-400(Cl). The sorption of thiocyanate ions on both sorbents practically does not depend on the pH of the solution in the range 2–12. The rate of thiocyanate ion sorption is limited by mixed intra-particle and boundary layer diffusion. The sorption isotherms obtained at 18 and 60°C on Purolite A-400 are well described by the Langmuir sorption model, and on the Cr–polymer composite – by the Freundlich model. The difference in the magnitude of sorption on these composites is explained by the fact that on Purolite A-400(Cl) the retention of thiocyanate ions occurs as a result of ion exchange, while on the Cr–polymer composite it occurs as a result of ion exchange and complex formation. The Cr–polymer composite loaded with thiocyanate ions becomes a sorbent with selective sorption properties in relation to heavy metal cations, which is confirmed by the retention of Hg2+ ions from solution.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"88 1","pages":"1 - 10"},"PeriodicalIF":1.1,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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