Colloid and Polymer Science最新文献_第9页

Soap-free emulsion synthesis of copper (II) phthalocyanine-loaded poly(butylene succinate-co-adipate) nanoparticles as photosensitizers for photodynamic therapy 无皂乳液合成负载铜（II）酞菁-聚丁二酸-共己二酸丁二烯纳米粒子作为光动力治疗的光敏剂

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-04-18 DOI: 10.1007/s00396-026-05613-w

Zaw Winn Kyaw, Duangporn Polpanich, Raweewan Thiramanas, Pakorn Opaprakasit, Abdelhamid Elaissari, Chariya Kaewsaneha

{"title":"Soap-free emulsion synthesis of copper (II) phthalocyanine-loaded poly(butylene succinate-co-adipate) nanoparticles as photosensitizers for photodynamic therapy","authors":"Zaw Winn Kyaw, Duangporn Polpanich, Raweewan Thiramanas, Pakorn Opaprakasit, Abdelhamid Elaissari, Chariya Kaewsaneha","doi":"10.1007/s00396-026-05613-w","DOIUrl":"10.1007/s00396-026-05613-w","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents green chemistry and nanotechnology to fabricate nanoparticles of copper (II) phthalocyanine (CuPc)-encapsulated poly(butylene succinate-<i>co</i>-adipate) (PBSA) oligomers for use as a photosensitizer (PS) agent in photodynamic therapy (PDT) applications. PBSA resin was depolymerized and functionalized <i>via</i> a microwave-assisted alcoholysis utilizing 1,4-butanediol (BDO) at various feed ratios of PBSA to BDO, i.e., 24:1, 12:1, and 6:1. At a high BDO feed ratio (6:1), the alcoholyzed PBSA (aPBSA) with a short chain and high hydroxyl contents was produced. This was then used to encapsulate hydrophobic CuPc pigment using a soap-free oil-in-water nanoemulsion technique. By controlling the pH of the medium (> 8.0) and emulsifying with CuPc oil phase, CuPc-encapsulated aPBSA (CuPc@PBSA) nanoparticles possessed a monodispersed core-shell structure with an average size of 200 ± 2 nm, and excellent stability without using any surfactants. This contributed to the high hydrophilic hydroxyl terminals of aPBSA. The CuPc@PBSA nanoparticles exhibited minimal toxicity when L929 cell viability exceeded 75% at a high dosage of 1000 µg/mL, indicating biocompatibility. Moreover, the nanoparticles demonstrated the capacity to generate reactive oxygen species (ROS) upon red light activation (670 nm), potentially decreasing lung cancer cell A549 viability by approximately 65% when applying a low concentration of 400 µg/mL. The materials have possibility to be utilized as an effective PS agent for PDT of cancer.</p>\u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 7","pages":"1597 - 1616"},"PeriodicalIF":2.9,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148299954","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

Preparation of octenyl succinic anhydride/β-cyclodextrin nanoparticles stabilized lemon essential oil Pickering emulsion for encapsulation of curcumin 辛烯基丁二酸酐/β-环糊精纳米颗粒稳定柠檬精油酸洗乳的制备及其对姜黄素包封作用

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-04-14 DOI: 10.1007/s00396-026-05611-y

Xia Chen, Xinyi Hu, Yixuan Yang, Juan Guo, Yun Chen, Chao Huang, Yong Hu

{"title":"Preparation of octenyl succinic anhydride/β-cyclodextrin nanoparticles stabilized lemon essential oil Pickering emulsion for encapsulation of curcumin","authors":"Xia Chen, Xinyi Hu, Yixuan Yang, Juan Guo, Yun Chen, Chao Huang, Yong Hu","doi":"10.1007/s00396-026-05611-y","DOIUrl":"10.1007/s00396-026-05611-y","url":null,"abstract":"<div>\u0000 \u0000 <p>The octenyl succinic anhydride grafted β-cyclodextrin nanoparticles (OS/β-CD NPs) were prepared through self-assembly of OS/β-CD complex, which was synthesized by esterifying β-CD with OSA at a molar ratio of 1:6. These nanoparticles were subsequently employed as an emulsifying stabilizer for a lemon essential oil Pickering emulsion (LEOPE). The influence of several factors, including OS/β-CD NPs concentration (1%–5%, w/v), lemon essential oil (LEO) fraction (φ = 30%–70%), and pH (3.0–12.0), on the microstructure and droplet size of the LEOPE was examined using optical microscopy and a particle size analyzer. Additionally, the rheological properties, storage stability, and evaporation rate of LEO from the emulsions were investigated. These results show that the LEOPE with the smallest particle size and the densest microstructure can be obtained at a W/O ratio of 3:7 and OS/β-CD NPs 5%, which showed good solid-like properties, improved slow-release effect, and excellent storage stability. Moreover, the LEOPE showed effective encapsulation stability for curcumin and demonstrated satisfactory synergistic antibacterial activity. Furthermore, it enhanced the bioaccessibility of curcumin, indicating that the developed LEOPE holds significant potential for application in functional foods.</p>\u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 7","pages":"1583 - 1595"},"PeriodicalIF":2.9,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148299994","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

Research on the controlled synthesis of magnesium ethoxide support for Ziegler-Natta catalysts in olefin polymerization 烯烃聚合Ziegler-Natta催化剂负载型氧化镁的可控合成研究

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-04-11 DOI: 10.1007/s00396-026-05612-x

Hegang Ren, Youhui Qiu, Qi Yao, Bo Yang

{"title":"Research on the controlled synthesis of magnesium ethoxide support for Ziegler-Natta catalysts in olefin polymerization","authors":"Hegang Ren, Youhui Qiu, Qi Yao, Bo Yang","doi":"10.1007/s00396-026-05612-x","DOIUrl":"10.1007/s00396-026-05612-x","url":null,"abstract":"<div>\u0000 \u0000 <p>Magnesium ethoxide (Mg(OEt)<sub>2</sub>) as a solid precursor for olefin polymerization catalysts was synthesized solely through control of the synthesis process rather than by using external additives. The influence of several important process factors during the preparation of Mg(OEt)₂, such as the addition method of magnesium powder, iodine concentration, ethanol content, and stirring speed, on the properties (particle size, morphology, and bulk density) of Mg(OEt)₂ was investigated. The results show that multi-stage feeding effectively moderates reaction intensity and promotes the ordered assembly and growth of lamellar crystals. This strategy can precisely control the average particle size of Mg(OEt)₂ within the range of 9–34 μm. Under optimized conditions including an I₂/Mg molar ratio of 0.0042, a stirring speed of 200 rpm, and an EtOH/Mg mass ratio of 10.5, we successfully synthesized magnesium ethoxide particles exhibiting a narrow size distribution, high sphericity, a bulk density of 0.37 g/cm³, and excellent flowability. Ziegler-Natta catalysts based on the synthesized Mg(OEt)₂ of varying particle sizes (26.59 and 15.11 micrometers) were evaluated in propylene and ethylene polymerization. The results demonstrate that the size of Mg(OEt)₂ had no significant impact on catalytic activity, it directly determines the particle size distribution of the polyolefin product, thereby influencing its bulk density. This work presents a novel strategy for the industrial synthesis of high-performance, low-cost Ziegler-Natta catalyst supports, providing valuable insights for developing value-added and customized polyolefin products.</p>\u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 7","pages":"1571 - 1582"},"PeriodicalIF":2.9,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148299947","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

Stimuli-responsive nanogels encapsulating bleomycin for improved in vitro sclerotherapy of superficial lymphatic malformations 包裹博来霉素的刺激反应纳米凝胶用于改善浅表淋巴畸形的体外硬化治疗

IF 2.3 4区化学

Colloid and Polymer Science Pub Date : 2026-04-10 DOI: 10.1007/s00396-026-05609-6

Taoran Yan, Xuesong Guo, Yu Tian

{"title":"Stimuli-responsive nanogels encapsulating bleomycin for improved in vitro sclerotherapy of superficial lymphatic malformations","authors":"Taoran Yan, Xuesong Guo, Yu Tian","doi":"10.1007/s00396-026-05609-6","DOIUrl":"10.1007/s00396-026-05609-6","url":null,"abstract":"<div>\u0000 \u0000 <p>A stimuli-responsive nanogel composed of Chitosan, Pluronic F127 and PEG-dialdehyde was developed for controlled delivery of Bleomycin to treat superficial lymphatic malformations. We report the in vitro preclinical evaluation of a dual-stimuli-responsive nanogel platform for localized Bleomycin delivery. The formulated BLM@CS-PF127-PEGDA nanogels exhibited uniform particle size, positive surface charge and high encapsulation efficiency, confirming stable network formation. Morphological and thermal analyses indicated effective crosslinking and drug entrapment. They exhibited pH- and temperature-dependent release in vitro and enabling sustained drug availability under pathological conditions, along with injectability at room temperature and accelerated release under mildly acidic microenvironmental conditions. Cytocompatibility assays on HDLECs confirmed minimal carrier toxicity, while gene expression results indicated greater apoptotic activity and reduced inflammation compared with free Bleomycin. The formulation also inhibited endothelial migration, highlighting its potential to control abnormal lymphatic proliferation. The synthesized nanogel presents a promising and safer platform for effective sclerotherapy of lymphatic malformations through controlled and localized drug delivery.</p>\u0000 <span>AbstractSection</span>\u0000 Graphical Abstract\u0000 <div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div>\u0000 \u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 6","pages":"1491 - 1511"},"PeriodicalIF":2.3,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021068","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

On the relationship between kinetics and normal statistics of the self-healing process of a vitrified polymer − devitrified polymer interface 玻璃化聚合物-反玻璃化聚合物界面自愈过程动力学与正态统计的关系

IF 2.3 4区化学

Colloid and Polymer Science Pub Date : 2026-03-28 DOI: 10.1007/s00396-026-05599-5

Yuri M. Boiko

{"title":"On the relationship between kinetics and normal statistics of the self-healing process of a vitrified polymer − devitrified polymer interface","authors":"Yuri M. Boiko","doi":"10.1007/s00396-026-05599-5","DOIUrl":"10.1007/s00396-026-05599-5","url":null,"abstract":"<div>\u0000 \u0000 <p>The aim of this work is to find out the impact of the kinetic parameters, temperature (<i>T</i>) and time (<i>t</i>), of the self-healing process of the interface between a polymer in the glassy state and a polymer in the viscoelastic state on the statistical normal distribution parameters of the developed lap-shear strength (<i>σ</i>). For this purpose, the specimens of polystyrene (PS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) were kept in contact at several constant <i>T</i>’s located on both sides of the bulk glass transition temperature (<i>T</i><sub>g</sub><sup>b</sup>) of PS corresponding to very low <i>T</i>’s as compared to the PPO <i>T</i><sub>g</sub><sup>b</sup>, down to <i>T</i> = <i>T</i><sub>g</sub><sup>b</sup> − 126 °C, over a broad interval of <i>t</i> of 2 min to 96 h. For each set of the <i>t</i>-<i>T</i> self-healing conditions, a number (<i>n</i>) of mechanically sustainable adhesive joints PS−PPO were formed and thereafter fractured at ambient <i>T</i>. The measured datasets <i>σ</i> (<i>n</i>) are analyzed using the quantile−quantile plots, probability density function histograms of <i>σ</i> and a series of the standard tests for normality. The normal probability parameter (<i>p</i>) is analyzed as a function of <i>T</i> and <i>t</i>. The applicability of the three methods used to describe the <i>σ</i> distribution at the PS−PPO interface is discussed.</p>\u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 6","pages":"1449 - 1469"},"PeriodicalIF":2.3,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021062","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

Recovery of Ag(I)/Au(III) using TiO2 and trithiocyanuric acid co-modified luffa fiber TiO2与三硫氰尿酸共改性丝瓜纤维回收Ag(I)/Au（III）

IF 2.3 4区化学

Colloid and Polymer Science Pub Date : 2026-03-28 DOI: 10.1007/s00396-026-05608-7

Jiace Li, Tiantian Yu, Bingtian Zhao, Yongmin Zhang

{"title":"Recovery of Ag(I)/Au(III) using TiO2 and trithiocyanuric acid co-modified luffa fiber","authors":"Jiace Li, Tiantian Yu, Bingtian Zhao, Yongmin Zhang","doi":"10.1007/s00396-026-05608-7","DOIUrl":"10.1007/s00396-026-05608-7","url":null,"abstract":"<div>\u0000 \u0000 <p>The development of highly efficient, environmentally-friendly, and multifunctional bio-based adsorbents for the recovery of precious metals is of great importance. Herein, a novel TiO₂-coated luffa fiber functionalized using trithiocyanuric acid (TiO₂/ALF-TTCA) was developed for the efficient recovery of Ag(I) and Au(III) from wastewater through combined adsorption and photocatalytic reduction under ultraviolet (UV) and sunlight irradiation. The pure adsorption process in the dark followed the pseudo-second-order kinetic model and fitted the Langmuir isotherm model well, with maximum adsorption capacities of 193.13 mg·g⁻¹ for Ag(I) and 828.65 mg·g⁻¹ for Au(III). This material achieved recovery efficiencies for Ag(I) and Au(III) of > 99% upon UV irradiation. A wide range of characterization techniques confirmed the successful adsorption and reduction of Ag(I) and Au(III) upon UV irradiation, resulting in the formation of Ag and Au nanoparticles on the material’s surface. The material exhibited exceptionally high selectivity toward Au(III) with a selectivity coefficient 369–4942 times higher than those of other coexisting metal ions. Notably, after five cycles, the recovery efficiency for Ag(I) remained > 95%, while the recovery efficiency of Au(III) was sustained above 88%, demonstrating the excellent stability. Moreover, the TiO₂/ALF-TTCA loaded with Ag and Au nanoparticles exhibited outstanding antimicrobial activity, achieving inhibition percentages of 98.60% and 100% against <i>Staphylococcus aureus</i> and 99.86% and 100% against <i>Escherichia coli</i>, respectively. This study highlights TiO₂/ALF-TTCA as a cost-effective and reusable adsorbent with promising applications in the recovery of precious metals from wastewater and as an antimicrobial material.</p>\u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 6","pages":"1471 - 1489"},"PeriodicalIF":2.3,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021067","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

Exploring thermodynamic stability and microenvironment of dilute bile salt based ‘catanionic’ assemblies of relevance to drug delivery 探索与药物传递相关的稀胆汁盐基“阳离子”组件的热力学稳定性和微环境

IF 2.3 4区化学

Colloid and Polymer Science Pub Date : 2026-03-27 DOI: 10.1007/s00396-026-05607-8

M. Basu, Sharmistha Dutta Choudhury, Sugam Kumar, Bijaideep Dutta, Sandeep B. Shelar

{"title":"Exploring thermodynamic stability and microenvironment of dilute bile salt based ‘catanionic’ assemblies of relevance to drug delivery","authors":"M. Basu, Sharmistha Dutta Choudhury, Sugam Kumar, Bijaideep Dutta, Sandeep B. Shelar","doi":"10.1007/s00396-026-05607-8","DOIUrl":"10.1007/s00396-026-05607-8","url":null,"abstract":"<div><p>‘Catanionic’ surfactant mixtures give rise to wide variety of nano-structures like mixed micelles, vesicles, lamellar phases etc., of interest for drug delivery applications. Sodium deoxycholate (NaDC) and cetylpyridinium chloride (CPC) are two popular oppositely charged amphiphiles widely used individually as permeation enhancers in drug formulations. However, this pair of surfactants has been scarcely explored as a catanionic mixture. In this work, phase evolution study is carried out at 100 mM total concentration using DLS, cryo-TEM and turbidity data. The thermodynamic stability of the NaDC-CPC ‘catanionic’ system has been explored in the dilute region (100 mM) with help of isothermal titration calorimetry. A stable bluish isotropic solution, consisting of multi micellar aggregates formed through inter-micelle H-bonding amongst NaDC molecules in the micelles, is observed at the equimolar composition. Similar aggregates have not been observed so far, in other catanionic systems with either NaDC or CPC as component. Mixed micelles and micelle aggregates deviate from regular solution behavior due to non-ideal entropy of mixing caused by difference in hydrophobic backbone structure of NaDC and CPC and exhibit composition dependent enthalpic stability. This system exhibits moderately good compatibility with non-cancerous cells and higher cytotoxicity towards specific cancer cells of human origin. Our studies show that the structures of this catanionic combination can be fine-tuned for future use in diverse areas related to drug delivery.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 6","pages":"1403 - 1420"},"PeriodicalIF":2.3,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021060","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

Thermodynamic study of CTAB Micellization in the presence of bifonazole and lecithin: enhancing solubility and permeability 联苯唑和卵磷脂存在下CTAB胶束化的热力学研究：增强溶解度和渗透性

IF 2.3 4区化学

Colloid and Polymer Science Pub Date : 2026-03-27 DOI: 10.1007/s00396-026-05604-x

Karishma Mahajan, Vikrant Abbot, Ashok Kumar Nadda, Dileep Kumar, Poonam Sharma

{"title":"Thermodynamic study of CTAB Micellization in the presence of bifonazole and lecithin: enhancing solubility and permeability","authors":"Karishma Mahajan, Vikrant Abbot, Ashok Kumar Nadda, Dileep Kumar, Poonam Sharma","doi":"10.1007/s00396-026-05604-x","DOIUrl":"10.1007/s00396-026-05604-x","url":null,"abstract":"<div>\u0000 \u0000 <p>Bifonazole is an antifungal agent with poor water solubility, which limits its effectiveness in topical applications due to insufficient solubilization and interfacial properties. This study systematically examined the micellization of cetyltrimethylammonium bromide (CTAB) in hydro-ethanolic media, in the presence of bifonazole and lecithin. Critical micelle concentration (CMC) and related thermodynamic parameters were determined using surface tension, density, and contact angle measurements. The findings showed that adding lecithin lowered the CMC of CTAB and improved interfacial activity, indicating more efficient micelle formation. Negative ΔGº<sub>m</sub> values across all solvent mixtures confirmed that micellization occurred spontaneously, while positive ΔSº<sub>m</sub> values indicated an entropy-driven process. The transition of ΔHº<sub>m</sub> from positive in aqueous media to negative at higher ethanol fractions suggests a shift in the dominant micellization forces. A higher ethanol fraction further promoted micellization by enhancing hydrophobic interactions. The decrease in contact angle demonstrated better wettability of the system. These studies are crucial for understanding the strength of interactions within the system and for preparing ethosomal formulations containing bifonazole, lecithin, and CTAB micelles.</p>\u0000 <span>AbstractSection</span>\u0000 Graphical Abstract\u0000 <div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div>\u0000 \u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 6","pages":"1421 - 1435"},"PeriodicalIF":2.3,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148020975","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

Flame-retardant GO@SiO2 modified oil-water separation membranes with superhydrophilic and underwater superoleophobic properties 具有超亲水性和水下超疏油性能的阻燃GO@SiO2改性油水分离膜

IF 2.3 4区化学

Colloid and Polymer Science Pub Date : 2026-03-27 DOI: 10.1007/s00396-026-05605-w

Hong Ji, Ruiqi Wang, Song Zheng, Ke Yang, Zhixiang Xing

{"title":"Flame-retardant GO@SiO2 modified oil-water separation membranes with superhydrophilic and underwater superoleophobic properties","authors":"Hong Ji, Ruiqi Wang, Song Zheng, Ke Yang, Zhixiang Xing","doi":"10.1007/s00396-026-05605-w","DOIUrl":"10.1007/s00396-026-05605-w","url":null,"abstract":"<div>\u0000 \u0000 <p>The application of oil-water separation membranes is hindered by their poor thermal stability, limited permeability, and complex production processes. To overcome these limitations, this study developed a novel modified membrane by depositing GO@SiO<sub>2</sub> onto nylon microporous membranes using a facile one-step vacuum filtration method. The prepared membrane exhibited both superhydrophilicity and underwater superoleophobicity. Experimental results demonstrated that the membrane achieved high separation efficiency (> 99%), exceptional water flux (3015.8 L∙m<sup>− 2</sup>∙h<sup>− 1</sup>), and excellent antifouling properties (Oil Contact Angle <sub>max</sub>= 152°, low oil adhesion) for water-in-oil emulsions. Moreover, the membrane exhibited outstanding flame retardancy (LOI<sub>max</sub>=29%) and superior thermal stability. It showed higher thermal decomposition temperatures and significantly slower weight loss rates. This modified GO@SiO<sub>2</sub> membrane showed great potential for the industrial-scale treatment of oil-in-water emulsions. Importantly, the flame-retardant properties also made the membrane a promising candidate for offshore oil spill fire remediation.</p>\u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 6","pages":"1437 - 1447"},"PeriodicalIF":2.3,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148020985","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

MHD radiative stagnation-point flow of hybrid nanofluid over a rotating disk: effects of nanoparticle geometry, entropy generation, and stability analysis via cubic B-spline collocation 混合纳米流体在旋转圆盘上的MHD辐射滞点流动：纳米颗粒几何形状的影响，熵产生，以及通过三次b样条搭配的稳定性分析

IF 2.3 4区化学

Colloid and Polymer Science Pub Date : 2026-03-26 DOI: 10.1007/s00396-026-05602-z

Kiran Dhirawat, Ramakanta Meher

{"title":"MHD radiative stagnation-point flow of hybrid nanofluid over a rotating disk: effects of nanoparticle geometry, entropy generation, and stability analysis via cubic B-spline collocation","authors":"Kiran Dhirawat, Ramakanta Meher","doi":"10.1007/s00396-026-05602-z","DOIUrl":"10.1007/s00396-026-05602-z","url":null,"abstract":"<div>\u0000 \u0000 <p>This study theoretically analyses stagnation-point flow and heat transfer of a Cu and <span>(text {Al}_2text {O}_3)</span> hybrid nanofluid over a rotating disk, accounting for the synergistic effects of solar radiation and magnetohydrodynamic (MHD) forces. To extend beyond conventional single-particle studies, four nanoparticle geometries, sphere, column, blade, and lamina, are integrated to investigate their effects on flow dynamics, thermal conduction, and thermodynamic irreversibility. The nonlinear governing equations are first transformed into a self-similar form using an extended similarity transformation. The resulting system is then solved numerically with a cubic B-spline collocation method. The physical reliability of the solutions is verified through eigenvalue-based stability analysis. In addition, entropy generation is examined to highlight how particle shape, thermal radiation, and magnetic effects influence the overall efficiency of the system. The numerical results show that surface stretching significantly enhances heat transmission and radial velocity, with lamina-shaped nanoparticles exhibiting the best thermal performance. Temperature distributions and velocity components are significantly affected by disk rotation and magnetic field intensity, whereas increased solar radiation and Reynolds numbers decrease entropy formation, thereby increasing thermodynamic efficiency. Overall, the study offers a unified framework that emphasizes the critical role of nanoparticle morphology in optimizing radiative MHD hybrid nanofluid flows.</p>\u0000 </div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 6","pages":"1377 - 1401"},"PeriodicalIF":2.3,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021066","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