Colloid Journal最新文献

Functionalization of Gold Nanorods with Monohydroxy Thioalkylated PEG and Study of Their Cytotoxicity and BSA Adsorption 单羟基硫代烷基化聚乙二醇功能化金纳米棒及其细胞毒性和BSA吸附研究

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-09-09 DOI: 10.1134/S1061933X25600927

A. Salabat, F. Mirhoseini, P. Rezaei, F. Shayanmehr, D. Salabat

{"title":"Functionalization of Gold Nanorods with Monohydroxy Thioalkylated PEG and Study of Their Cytotoxicity and BSA Adsorption","authors":"A. Salabat, F. Mirhoseini, P. Rezaei, F. Shayanmehr, D. Salabat","doi":"10.1134/S1061933X25600927","DOIUrl":"10.1134/S1061933X25600927","url":null,"abstract":"In this research, water-soluble functionalized gold nanorods (Au NRs) with low toxicity were synthesized by a seed-mediated growth method. For this purpose, a seed solution of the gold nanoparticles was added to the growth solution containing a weak reducing agent to form a controlled size of gold nanorods. After that, to explore the applicability of gold nanoparticles in biomedicine, particularly in photothermal therapy as a noninvasive therapeutic tool, the prepared Au NRs were functionalized using (11-Mercaptoundecyl)tetra(ethylene glycol) as a monohydroxy thioalkylated PEG (MUTEG) ligand, for the first time. To confirm the formation of Au NRs and determination of their size and aspect ratio, UV−Vis spectroscopy and TEM techniques were applied. The CHNS analysis was employed to characterize the attached MUTEG ligands on the surface of the Au NRs. The HeLa cells were used to determine the cytotoxicity of the prepared Au-MUTEG NRs. The surface of the prepared Au-MUTEG NRs was conjugated with BSA to obtain Au-MUTEG−BSA NRs, as the final product, and confirmed by FT-IR analysis. The zeta potential analysis was also used to determine the charge and stability of the functionalized Au-MUTEG and Au-MUTEG−BSA NRs in comparison with Au NRs.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"750 - 757"},"PeriodicalIF":1.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011656","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

Influence of Mechanical Activation on the Structure and Sorption Properties of Hydrolytic Lignin, Kaolin, and Composites Based Thereon 机械活化对水解木质素、高岭土及其复合材料结构和吸附性能的影响

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-09-09 DOI: 10.1134/S1061933X25600903

O. N. Dabizha, E. A. Bondarevich, E. M. Ivan’kova, T. V. Khamova, O. A. Shilova

{"title":"Influence of Mechanical Activation on the Structure and Sorption Properties of Hydrolytic Lignin, Kaolin, and Composites Based Thereon","authors":"O. N. Dabizha, E. A. Bondarevich, E. M. Ivan’kova, T. V. Khamova, O. A. Shilova","doi":"10.1134/S1061933X25600903","DOIUrl":"10.1134/S1061933X25600903","url":null,"abstract":"An express method of solvent-free dry mechanochemistry using fine grinding in air for 3 and 6 minutes in a mill (0.94 kW; 26 000 rpm) is employed to targetedly change the structure of kaolin and increase its sorption capacity. During the same process, kaolin is modified together with hydrolytic lignin to hydrophobize its surface and improve its sorption properties. The influence of the mechanical activation on the structure and properties of kaolin, hydrolytic lignin, and their composites with different component ratios is studied using electronic microscopy, X-ray diffraction, infrared spectroscopy, low-temperature nitrogen adsorption, and UV absorption spectroscopy. The dense structure of kaolinite remains preserved, hydrogen bonds in hydrolytic lignin are ruptured, and the number of carbonyl groups increases, while fragments of the natural polymer are grafted to kaolinite. It has been found that an agglomeration–aggregative microstructure is formed in the composites. Kaolin and the kaolin–hydrolytic lignin composite (10 : 1, weight/weight) treated at a mechanical energy dose of 0.83 kJ g–1 undergo significant structural changes and exhibit rather high sorption characteristics. The Brunauer−Emmett−Teller specific surface area of these sorbents is ∼16 m2 g–1, while their adsorption capacities for bovine serum albumin are 83.63 and 44.10 mg g–1, respectively. Thus, the dry mechanical activation in air under “mild” conditions makes it possible to increase the sorption of bovine serum albumin on kaolin by 104%.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"623 - 637"},"PeriodicalIF":1.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011863","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

Effect of Anionic Surfactant Additives on the Surface Characteristics of Solutions of Dicationic Diimidazolium Surfactants with Short Spacer Fragments 阴离子表面活性剂添加剂对短间隔片段双咪唑表面活性剂溶液表面特性的影响

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-09-09 DOI: 10.1134/S1061933X2560099X

S. L. Khil’ko, A. A. Kotenko

引用次数: 0

Cilnidipine-Loaded Niosomes: A Novel Transdermal Delivery System for Enhanced Permeation 西尼地平负载小体：一种新的增强渗透的透皮给药系统

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-08-18 DOI: 10.1134/S1061933X25600459

A. A. Madhav, D. D. Kambli, C. E. M. DCruz, L. Kumar, R. K. Shirodkar

{"title":"Cilnidipine-Loaded Niosomes: A Novel Transdermal Delivery System for Enhanced Permeation","authors":"A. A. Madhav, D. D. Kambli, C. E. M. DCruz, L. Kumar, R. K. Shirodkar","doi":"10.1134/S1061933X25600459","DOIUrl":"10.1134/S1061933X25600459","url":null,"abstract":"The objective of the study was to formulate cilnidipine-loaded niosomes using cholesterol and Span 60 using the emulsification-ultrasonication method. The Box−Behnken design was adopted to optimize process variables in order to attain lower particle size and higher entrapment efficiency. Niosomal dispersion was evaluated for particle size, zeta potential, and entrapment efficiency. Morphological and drug release characteristics were also studied. The cilnidipine niosomes were further developed as a hydrogel and evaluated for its physical appearance, viscosity, swelling characteristics, pH, spreadability, release characteristics permeation, skin irritation potential, and stability. The niosomes exhibited particle size in the range of 138.1 to 355.5 nm and drug entrapment of 82.63 to 91.77%. For 8 h, 89.06% of the drug was released. Morphological studies revealed the spherical nature of the niosomal vesicles. Fourier transform infrared spectroscopy, differential scanning calorimetry, and X-ray diffractometry studies were also performed. Rat skin permeation studies showed a greater transdermal flux (0.4952 mg/cm2 h) and permeation coefficient (0.09904) as compared to the control gel. Clove oil in cilnidipine niosomes acts as a vesicular membrane-fluidizing agent for greater drug delivery across the stratum corneum. This, along with Span 60, reduces the stratum corneum barrier rigidity, thereby enhancing its delivery across the skin. The present study thus demonstrated that cilnidipine niosomal formulation could be a favourable transdermal delivery system for the treatment of hypertension.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"721 - 736"},"PeriodicalIF":1.1,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011675","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

Ion Size and Ion Partitioning Effects on Electroosmosis Flow of Power-Law Fluids in pH-Responsive Soft Nanochannels with Basic Functional Groups 离子大小和离子分配对ph响应软基纳米通道中幂律流体电渗透流动的影响

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-08-18 DOI: 10.1134/S1061933X25600563

Amit Malick, Bhanuman Barman

引用次数: 0

Adsorption Efficacy of Silver Nanoparticles Synthesized Using Wintergreen Plant Extract: A Green Approach to Dye Removal 冬青植物提取物合成银纳米颗粒的吸附效果：绿色脱色方法

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-08-18 DOI: 10.1134/S1061933X25600034

Himanshu Singh, Raghvendra Singh Raghuvanshi, Abhishek Singh, Manorama Kumari Talla, Sajid Ali, Ritu Chauhan, Drashya Gautam

{"title":"Adsorption Efficacy of Silver Nanoparticles Synthesized Using Wintergreen Plant Extract: A Green Approach to Dye Removal","authors":"Himanshu Singh, Raghvendra Singh Raghuvanshi, Abhishek Singh, Manorama Kumari Talla, Sajid Ali, Ritu Chauhan, Drashya Gautam","doi":"10.1134/S1061933X25600034","DOIUrl":"10.1134/S1061933X25600034","url":null,"abstract":"This study uses wintergreen (Gaultheria procumbens) plant extract as a reducing agent in a green synthesis technique to create silver nanoparticles (AgNPs). Numerous analytical methods, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), UV-visible spectroscopy, and zeta potential analysis, were used to characterize the synthesized AgNPs. The results revealed the successful synthesis of AgNPs with an average size of approximately 25 nm and a face-centered cubic (FCC) crystalline structure. Furthermore, the synthesized AgNPs effectively removed direct yellow 4 (DY4) dye from aqueous solutions, displaying a maximum adsorption capacity of 92 mg/g. The adsorption kinetics of DY4 on AgNPs followed the pseudo-second-order model, indicating that chemisorption mechanisms predominantly govern the adsorption process. Additionally, the adsorption isotherms of DY4 on the surface of AgNPs adhered closely to the Langmuir isotherm model, suggesting monolayer adsorption on the uniform surface of AgNPs through strong adsorbate-adsorbent interactions. Moreover, the AgNPs demonstrated promising potential for reusability, as evidenced by the retention of approximately 97% adsorption efficiency even after undergoing four consecutive adsorption-desorption cycles. This highlights the robustness and durability of the AgNPs as effective adsorbents for wastewater treatment applications.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"758 - 770"},"PeriodicalIF":1.1,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011677","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

Phase Behavior of Aqueous Fish Gelatin–Agar Mixtures 鱼明胶-琼脂水溶液的相行为

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-08-18 DOI: 10.1134/S1061933X25600629

N. G. Voron’ko, T. D. Kuzina, D. S. Kolotova, Yu. A. Kuchina, Yu. F. Zuev, S. R. Derkach

{"title":"Phase Behavior of Aqueous Fish Gelatin–Agar Mixtures","authors":"N. G. Voron’ko, T. D. Kuzina, D. S. Kolotova, Yu. A. Kuchina, Yu. F. Zuev, S. R. Derkach","doi":"10.1134/S1061933X25600629","DOIUrl":"10.1134/S1061933X25600629","url":null,"abstract":"The interaction of fish gelatin and agar in the bulk of an aqueous phase with the formation of supramolecular protein–polysaccharide complexes has been studied using spectroscopy (FTIR and UV), turbidimetry, quasi-elastic laser light scattering, and scanning electron microscopy. The effects of gelatin structure (content of amino acid residues), agar/fish gelatin ratio Z (weight/weight), and medium (pH and ionic strength I) on the boundaries of the regions of stoichiometric and non-stoichiometric complex formation, the size and ζ-potential of particles and, hence, the phase state of the aqueous mixtures (colloidal solutions) of the biopolymers have been considered. Phase diagrams have been plotted for aqueous mixtures of fish gelatin and agar in the Z–characteristic pH and I–characteristic pH coordinates. The regions of different phase states of the systems have been determined, such as a single-phase solution of non-complexed biopolymers, a dispersion of fish gelatin–agar complexes, the region of the onset of the separation of coacervates from the dispersion, and the region of the complete separation of the coacervate phase and the supernatant. It has been shown that the formation of fish gelatin–agar complexes affects the microstructure of gels formed as a result of cooling aqueous mixtures of the biopolymers.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"607 - 622"},"PeriodicalIF":1.1,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011752","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

Low-Temperature Magnetic Fluids Based on Alcohol and Salt Solutions and Stabilized with a Double Layer Containing a Nonionic Surfactant TWEEN 20 基于酒精和盐溶液的低温磁流体，并通过含有非离子表面活性剂TWEEN 20的双层稳定

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-08-18 DOI: 10.1134/S1061933X25600587

A. V. Lebedev, S. N. Lysenko

{"title":"Low-Temperature Magnetic Fluids Based on Alcohol and Salt Solutions and Stabilized with a Double Layer Containing a Nonionic Surfactant TWEEN 20","authors":"A. V. Lebedev, S. N. Lysenko","doi":"10.1134/S1061933X25600587","DOIUrl":"10.1134/S1061933X25600587","url":null,"abstract":"Samples of a magnetic fluid stabilized with a double surfactant layer have been synthesized in water using a nonionic stabilizer TWEEN 20 (Polysorbate 20) as the second layer. The rheological properties of the synthesized samples have been studied as depending on their concentration. In contrast to fluids containing dissociated surfactants, the viscosity of the magnetic fluid decreases with increasing temperature faster than does the viscosity of the base medium (water). The main advantage of using a nonionic surfactant is the possibility of synthesizing low-temperature magnetic fluids based on water–alcohol mixtures and aqueous salt solutions. Fluids stabilized with TWEEN 20 in ethylene glycol and propylene glycol solutions remain mobile to temperatures of –40 and –50°С. When calcium chloride (CaCl2) solutions are used as base media, the test samples of the fluid retain their working capacity to a temperature of –30°С. Magnetic fluids based on alcohol and salt solutions can be indispensable in the fields of engineering, in which their high fire and environmental safety are required. The chemical inertness of particles stabilized with TWEEN 20 makes them to be applicable in biology and medicine.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"656 - 662"},"PeriodicalIF":1.1,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011879","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

Biofabrication of Titanium Dioxide Nanoparticles using Syzygium samarangense Extracts: Characterization and Evaluation of their Photocatalytic Activity 利用皂荚提取物制备二氧化钛纳米颗粒：表征及其光催化活性评价

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-08-18 DOI: 10.1134/S1061933X25600423

Ganapathy Aarthe, Periyasamy Anitha, Sivamaruthamuthu Nandhini

{"title":"Biofabrication of Titanium Dioxide Nanoparticles using Syzygium samarangense Extracts: Characterization and Evaluation of their Photocatalytic Activity","authors":"Ganapathy Aarthe,  Periyasamy Anitha, Sivamaruthamuthu Nandhini","doi":"10.1134/S1061933X25600423","DOIUrl":"10.1134/S1061933X25600423","url":null,"abstract":"The research work presents the eco-friendly synthesis of titanium dioxide (TiO2) nanoparticles using an aqueous extract of Syzygium samarangense through a green synthesis approach. The biofabricated TiO2 nanoparticles were characterized using various techniques, including Field Emission Scanning Electron Microscopy, which revealed a distinctive ball-like morphology. The crystalline size of nanomaterials were determined by X-ray diffraction method. Ultraviolet spectroscopy analysis indicates band gap energy of 3.1 eV, which confirms that nanoparticles are suitable for photocatalytic applications. Phytochemical analysis of the Syzygium samarangense extract demonstrated the presence of key biomolecules such as alkaloids and phenolic compounds, which likely played a crucial role in nanoparticles synthesis and stabilization. The photocatalytic activity of the synthesized TiO2 nanoparticles was evaluated using methylene blue dye degradation under ultraviolet light. The nanoparticles exhibited significant photocatalytic efficiency, with a marked decrease in methylene blue concentration over time, highlighting their potential for environmental remediation. These results demonstrate the viability of green-synthesized TiO2 nanoparticles for photocatalytic applications, offering a sustainable alternative to conventional methods of nanoparticles fabrication.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"707 - 720"},"PeriodicalIF":1.1,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011676","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 Cumulative Impact of DTAB Micelles and Ru(III) on the Rate Augmentation of 4-Chlorobenzaldehyde by N-Bromosuccinimide DTAB胶束和Ru（III）对n -溴代琥珀酰亚胺对4-氯苯甲醛加速反应的累积影响

IF 1.1 4区化学

Colloid Journal Pub Date : 2025-08-18 DOI: 10.1134/S1061933X25600733

A. Srivastava, P. K. Pandey, N. Srivastava, R. K. Padhy, N. Srivastava

{"title":"The Cumulative Impact of DTAB Micelles and Ru(III) on the Rate Augmentation of 4-Chlorobenzaldehyde by N-Bromosuccinimide","authors":"A. Srivastava, P. K. Pandey, N. Srivastava, R. K. Padhy, N. Srivastava","doi":"10.1134/S1061933X25600733","DOIUrl":"10.1134/S1061933X25600733","url":null,"abstract":"4-Chlorobenzoic acid (4-CBA) serves as an important industrial compound, utilized as a probe for hydroxyl radicals in ozonation processes, as well as a ligand in the synthesis of luminescent lanthanide complexes. 4-CBA can be produced from 4-Chlorobenzaldehyde (4-CBZ) via oxidation using a specific oxidizing agent. The oxidation kinetics of 4-CBZ by N-Bromosuccinimide (NBS), facilitated by Ru(III), have been investigated in both the aqueous and dodecyltrimethylammonium bromide (DTAB) micellar medium. The reaction’s progression was assessed by quantifying unreacted NBS iodometrically. Throughout the range of concentrations analyzed, the 4-CBZ oxidation demonstrates a fractional-order kinetics concerning both [4-CBZ] and [Ru(III)], exhibits negative first-order reliance with respect to [HClO4], and shows first-order dependence on [NBS]. The observed constancy in oxidation rate with the inclusion of electrolyte suggests a zero salt effect. The fractional order reliance on 4-CBZ and Ru(III) suggests that the catalyst and substrate form a complex prior to the rate-determining step. The results demonstrate that the NBS itself and [RuCl5(H2O)]2− will be the most reactive species of NBS and Ru(III) in an acidic environment. The oxidation rate is markedly increased by Ru(III) (2.1 times) acting as a catalyst at ppm concentration. The micellar media of DTAB further accelerates the reaction rate by a factor of 4.3. Ru(III) and DTAB micelles synergistically enhanced the oxidation rate of 4-CBZ by 6.4 fold. A credible mechanism that corresponds with the kinetic findings has been emphasized, alongside an analysis of the Piszkiewicz model, to elucidate the apparent catalytic influence of DTAB micellar environments.","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 5","pages":"771 - 783"},"PeriodicalIF":1.1,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011751","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