Colloids and Surfaces A: Physicochemical and Engineering Aspects最新文献

{"title":"Temperature dependence of water wettability on reservoir rock surfaces: In Situ characterization and mechanistic analysis based on subcritical water properties","authors":"Kai Shan ,&nbsp;Zhengsong Qiu ,&nbsp;Xiaojun Wang ,&nbsp;Shouzhi Wang ,&nbsp;Yu Jiang ,&nbsp;Xiaoxia Ren ,&nbsp;Hanyi Zhong ,&nbsp;Xin Zhao","doi":"10.1016/j.colsurfa.2025.136753","DOIUrl":"10.1016/j.colsurfa.2025.136753","url":null,"abstract":"<div><div>The exploration of deep, high-temperature oil and gas reservoirs is increasingly critical for future energy solutions. Understanding the in-situ wettability of reservoir rocks at high temperatures is essential to prevent water phase trapping and optimize enhanced oil recovery methods. This study employs a high-temperature, high-pressure contact angle measurement system to assess water contact angles on various rock surfaces, within a temperature range of 20°C to 200°C, under an 8 MPa nitrogen atmosphere. The mechanism of temperature-dependent wettability changes was conducted using molecular simulation, atomic force microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Findings reveal that the contact angle on quartz surfaces reduces with temperature, exhibiting distinct segmented behavior. The rate of change in contact angle was approximately −0.07°/°C from 20°C to 100°C and −0.17°/°C from 100°C to 200°C. Under subcritical conditions, an increase in hydrogen bonds between water molecules and the silica surface, along with a reduction in hydrogen bonds between water molecules, markedly influences the wettability on quartz surfaces. Water contact angles on crude oil-adsorbed rock samples progressively declined with increasing temperature, from 108.3° to 52.3°, transitioning the surface from oleophilic to hydrophilic. The adhesion work of water on these oil-adsorbed rock surfaces remained nearly constant up to 100°C; beyond this, under subcritical conditions, the adhesion work surged, with a change rate of 49.14 % at 200°C. Microscopic analysis of rock surface morphology and elemental composition, combined with the physicochemical properties of subcritical water, indicated that the desorption or thermal degradation of hydrocarbons adsorbed on the rock surfaces under the action of the subcritical water significantly alters their wettability characteristics. This research offers novel insights into the mechanisms driving wettability changes on high-temperature reservoir rock surfaces and supports the development of effective strategies for preventing water phase trapping and enhancing oil recovery.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"716 ","pages":"Article 136753"},"PeriodicalIF":4.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734520","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}

{"title":"Hydrogel-based composite interfacial evaporators: Rapid preparation, contaminant control, and desalination","authors":"Zekun Zhang ,&nbsp;Xu Zhang ,&nbsp;Hongkai Sun ,&nbsp;Jiahui Liu ,&nbsp;Bo Ge ,&nbsp;Limin Zhao ,&nbsp;Tonghui Zhang ,&nbsp;Guina Ren ,&nbsp;Zhaozhu Zhang","doi":"10.1016/j.colsurfa.2025.136725","DOIUrl":"10.1016/j.colsurfa.2025.136725","url":null,"abstract":"<div><div>The solar interface evaporation system (SIES) is considered the most promising solution to water scarcity for humans because it can produce clean water from seawater and wastewater without consuming additional energy. In particular, the photothermal materials with high efficiency in photothermal conversion are essential for this system. In addition, it remains a challenge to achieve the rapid preparation of multifunctional self-floating SIES that can remove contaminants from water under mild conditions. In this paper, a high vapor flux of 2.37 kg•m⁻²•h⁻¹ was achieved by dehydration condensation of small-molecule sucrose to prepare coke and introducing it into a hydrogel-based composite evaporator. To meet the large-scale preparation, the whole process was shortened to less than 2 h with a mild environment. The self-floatability in SIES was provided by hydrophobic CNTs@Bi₂WO₆ (SH-CNTs@Bi₂WO₆) nanoparticles loaded onto different substrates while addressing the degradation of water pollutants. This paper provides a reference for environmental protection and wastewater treatment.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"716 ","pages":"Article 136725"},"PeriodicalIF":4.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725124","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}

{"title":"Enhancing efficiency and stability of ambient-processed blade-coated PSCs with tween 60 and tBBAI surface passivation","authors":"En Jui Hsu ,&nbsp;Rui Yun Hsu ,&nbsp;Sheng Hsiung Yang ,&nbsp;Yu Pin Lin","doi":"10.1016/j.colsurfa.2025.136748","DOIUrl":"10.1016/j.colsurfa.2025.136748","url":null,"abstract":"<div><div>Perovskite solar cells (PSCs) have achieved rapid efficiency improvements, but uniformity issues in spin-coated films hinder industrial scalability. This study employs γ-butyrolactone (GBL) as an eco-friendly solvent for blade coating under ambient conditions and investigates the combined effects of polyethylene glycol sorbitan monostearate (Tween 60) and 4-tert-butylbenzylammonium iodide (tBBAI) on PSC performance and stability. Tween 60 improves film wettability, promoting uniform nucleation and grain growth, which enhances crystallinity and reduces grain boundary defects, increasing power conversion efficiency (PCE) from 14.24 % to 16.42 %. Surface passivation with tBBAI mitigates non-radiative recombination by filling iodide and cation vacancies, further raising PCE to 18.39 %. Stability tests show that PSCs treated with Tween 60 and tBBAI retain 85 % of their initial efficiency after 1480 hours of unencapsulated aging, while untreated devices degrade to 68 %. These results highlight an effective strategy for improving perovskite film quality, device efficiency, and operational stability.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"716 ","pages":"Article 136748"},"PeriodicalIF":4.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735119","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}

{"title":"Theoretical investigations of adsorption and sensing properties of M2Pc (M=Cr, Mo) monolayers towards volatile organic compounds","authors":"Junhui Li ,&nbsp;Yifu Zhang ,&nbsp;Huihui Xiong ,&nbsp;Gengfeng Deng ,&nbsp;Lei Gan","doi":"10.1016/j.colsurfa.2025.136750","DOIUrl":"10.1016/j.colsurfa.2025.136750","url":null,"abstract":"<div><div>The continuous expansion of industrial production has led to significant emissions of volatile organic compounds (VOCs), posing a serious threat to the ecological environment. Consequently, developing advanced gas sensors for the efficient detection of VOCs is critically important. In this work, first-principles methods based on density functional theory (DFT) are employed to investigate the stability, electronic structure, and gas-sensing properties of Cr₂Pc and Mo₂Pc monolayers upon adsorption of five representative VOCs (C₂H₄, CH₃Cl, C₆H₆, H₂CO, and CH₃OH). The results reveal that Cr₂Pc monolayer exhibits weak adsorption for C₂H₄, CH₃Cl, and C₆H₆, while demonstrating moderate adsorption strength for H₂CO and CH₃OH. In contrast, Mo₂Pc monolayer shows strong chemisorption for all five VOCs, with adsorption energies ranging from −0.92 eV to −2.34 eV. The mechanisms underlying these interactions are elucidated through detailed analyses of electronic properties, including charge transfer, charge density difference, density of states, and work function changes for each adsorption system. Furthermore, a comprehensive evaluation of sensitivity and recovery time suggests that two-dimensional Cr₂Pc is a promising reusable CH₃OH gas sensor at room temperature, featuring an ultrafast recovery time of 0.14 s and resistance to interference from common gases such as H₂O, N₂, CO₂ and CH₄. In contrast, 2D Mo₂Pc demonstrates potential as a reusable CH₃Cl gas sensor at high temperature, though its performance is susceptible to interference from H₂O and N₂ in ambient air. Overall, this study provides theoretical insights to guide the development and fabrication of novel, efficient two-dimensional bimetallic phthalocyanine-based gas sensors.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136750"},"PeriodicalIF":4.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740125","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}

{"title":"Surfactant-regulated self-assembly of copper nanoclusters into high fluorescent micron-scale hexagonal plates for Fe3+ detection","authors":"Chong Liu,&nbsp;Zhicheng Wang,&nbsp;Na Zhang,&nbsp;Yue Li,&nbsp;Shulin Li,&nbsp;Xia Xin","doi":"10.1016/j.colsurfa.2025.136745","DOIUrl":"10.1016/j.colsurfa.2025.136745","url":null,"abstract":"<div><div>The precise synthesis and self-assembly of metal nanoclusters (NCs) featuring customized morphologies and structures, represent a crucial step in the exploration of structure-property relationships and the discovery of new functionalities. This study presents a strategy to induce the self-assembly of copper nanoclusters (<strong>Cu-NCs</strong>, Cu₄I₄(PPh₃)₄) into stable and highly fluorescent regular micron level hexagonal plates by nonionic surfactant Tyloxapol and mixed solvent (DMSO/H₂O). The aggregation-induced emission (AIE) behavior markedly enhanced the fluorescence quantum yield and lifetime of <strong>Ty-Cu-NCs</strong>, from 0.57 % and 68.6 ns to 22.60 % and 2.8 μs, representing a ∼40-fold improvement in both. Kinetic studies of the assembly process have revealed a sequence involving nucleation, aggregation, oriented growth and subsequent size enlargement. When varying the types of surfactants, the formation of <strong>Ty-Cu-NCs</strong> assembly with different morphologies was observed which indicated the unique role of Tyloxapol in directing the formation of hexagonal plates. It is noteworthy that the <strong>Ty-Cu-NCs</strong> assembly exhibits high selectivity and sensitivity towards Fe³⁺ ions, with a detection limit of 1.51 μM, which is considerably lower than the maximum permissible concentration of Fe³⁺ in tap water as per health standards. The combination of high fluorescence properties and selective ion detection capabilities renders these <strong>Ty-Cu-NCs</strong> assembly promising candidates for applications in ion sensing and anti-counterfeiting technologies.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"716 ","pages":"Article 136745"},"PeriodicalIF":4.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746203","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}

{"title":"De novo fabrication of biomineralized Au nanorod@enzymes@ZIF-8 nanocomposites for enhanced enzymatic biocascade reaction in cancer cell","authors":"Yashi Wang ,&nbsp;Zhaoguo Wu ,&nbsp;Junwei Yang ,&nbsp;Aiwu Zhao ,&nbsp;Jin Wang","doi":"10.1016/j.colsurfa.2025.136734","DOIUrl":"10.1016/j.colsurfa.2025.136734","url":null,"abstract":"<div><div>In order to efficiently keep activities of enzymes and enhance stabilities of enzymes, intercalation of enzymes into core of Au nanorod and MOFs shell has been designed. Vice versa, enzymes immobilized on the surface of Au nanorod can guide MOFs shell growth via biomineralization interplay accompany with surfactant directed growth of MOFs on an anisotropic plasmonic template, leading to formation of a porous layer-by-layer nanostructure. Due to incorporation of stimuli-responsive enzyme and MOFs skeleton, loaded anticancer drug can be efficiently released under endogenous stimuli. In-situ SERS and UV-Vis analysis indicate that porous Au nanorod@enzymes@ZIF-8 nanocomposites can perform superior drug releasing behavior compared to Au nanorod@ZIF-8. Hence, the porous Au nanorod@enzymes@ZIF-8 nanocomposites can give more efficient enzymatic biocascade reaction in the nanoreactor in contrast with Au nanorod@ZIF-8@enzymes. Based on porous characteristics of ZIF-8 shell in the Au nanorod@enzymes@ZIF-8 nanocomposites, the nanocomposites can cause complete apoptosis of HeLa cell via enzymatic biocascade reaction and loaded anticancer drug. It can be expected that the unique biological-inorganic-organic hybridized nanosystem would be extensively applied in quantitative evaluation of multi-modal tumor therapy.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136734"},"PeriodicalIF":4.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740133","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}

{"title":"Mechanism of enhancing the injectability of coal with the chelating wetting agent by molecular dynamics simulation","authors":"Yajing Li ,&nbsp;Hao Wei ,&nbsp;Lianman Xu ,&nbsp;Fei Ye ,&nbsp;Yang Wang ,&nbsp;Qianfeng Xiao ,&nbsp;Wenxi Fu","doi":"10.1016/j.colsurfa.2025.136728","DOIUrl":"10.1016/j.colsurfa.2025.136728","url":null,"abstract":"<div><div>The wetting effect of water injection is of crucial importance for preventing geological disasters during the exploitation of deep coal seams. In this work, the promotion mechanism of the chelating wetting agent composed of the anionic surfactant sodium dodecyl benzene sulfonate (SDBS) and the chelating agent amino trimethylene phosphonic acid (ATMP) on the wetting effect of coal was explored through molecular dynamics simulations, surface tension tests, contact angle tests, scanning electron microscopy, and field tests. The electrostatic potential distribution of each molecule was analyzed by using the method of quantum chemical calculation, and the adsorption process of water molecules on the coal surface was simulated by adopting molecular dynamics. The results showed that the structures such as aromatic rings and alkane chains on the coal molecule surface had a small difference in electronegativity and were not easily combined with water molecules. The carbon chains of SDBS and ATMP molecules could adsorb at these sites, and their polar groups were exposed in water and formed hydrogen bonds with H₂O molecules with relatively strong interaction forces, thus increasing the hydrophilicity of the coal surface, significantly reducing the surface tension and contact angle of the aqueous solution, and enhancing the wetting effect of water on coal. In addition, it could also dissolve the minerals on the coal surface, connect the pores, and increase the contact area. When the chelating wetting agent solution was applied in the on-site coal seam water injection test, the water injection rate and volume increased significantly, creating a safer and more reliable environment for coal mine production.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"717 ","pages":"Article 136728"},"PeriodicalIF":4.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740130","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}

{"title":"A novel boron and silicon hybrid zeolite flame retardants for reducing the fire hazard of epoxy resin","authors":"Qihao Sun ,&nbsp;Shanshan Chen ,&nbsp;Xiaolong Chen ,&nbsp;Linan Dun ,&nbsp;Yuanhao Wang","doi":"10.1016/j.colsurfa.2025.136746","DOIUrl":"10.1016/j.colsurfa.2025.136746","url":null,"abstract":"<div><div>With the wide application of epoxy resin (EP), searching for a suitable method to improve the flame retardancy of EP to meet the requirements of its application in the field of high flame retardance has been a hot research topic. In this work, a novel boron and silicon containing zeolite hybrid material (Zeolite@BSi) was synthesised by organic-inorganic hybrid strategy and applied to flame retardant EP. The 7 wt% Zeolite@BSi conferred a limiting oxygen index (LOI) of 28.7 % and a V-0 rating on EP. Compared with EP, the peak heat release rate (PHRR), total heat release (THR) and the total smoke production (TSP) of EP/Zeolite@BSi were significantly reduced by 34.05 %, 25.42 % and 33.14 %, respectively. Zeolite@BSi protects the EP matrix by promoting the formation of more continuous char layers, thereby reducing heat and smoke release. Importantly, the addition of Zeolite@BSi not only improves the flame retardant performance of EP, but also enhances the mechanical properties of EP to some extent. This study provides a new strategy for developing EP composites with excellent flame retardance and good mechanical properties.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"716 ","pages":"Article 136746"},"PeriodicalIF":4.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746202","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}

{"title":"Multi-responsive dual-purpose smart starch-based hydrogel reinforced with activated carbon for agricultural applications","authors":"Michelly Cristina Galdioli Pellá ,&nbsp;Andressa Renatta Simão ,&nbsp;Marcos Roberto Mauricio ,&nbsp;Guilherme Miranda Pereira ,&nbsp;Douglas Cardoso Dragunski ,&nbsp;Rafael da Silva ,&nbsp;Adley Forti Rubira","doi":"10.1016/j.colsurfa.2025.136741","DOIUrl":"10.1016/j.colsurfa.2025.136741","url":null,"abstract":"<div><div>This work evaluates the effect of incorporating different amounts of activated carbon (AC) modified with glycidyl methacrylate (GMA; ^GMAAC) into a hydrolyzed or not hydrogel matrix based on starch-<em>g</em>-GMA (^GMASt) and N,N’-dimethyl acrylamide (DMAAm). FTIR and XRD results suggests that ^GMAAC has little effect on the hydrogel matrix. However, it increases their thermal stability, the diameter of pores, and the amorphous character of the non-hydrolyzed matrices. As a mechanical enhancer, ^GMAAC is more effective in the non-hydrolyzed matrices than in the hydrolyzed ones. The matrices show responsiveness towards pH, ionic strength, and temperature variations, reaching a swelling degree of (438.2 ± 41.60) g g⁻¹ for the hydrolyzed sample containing the highest amount of ^GMAAC (0.5 %; ionic strength of 1 ×10⁻⁵ M and T = 25 °C). Statistical results suggest that the efficiency of the matrices would not be suppressed at higher ionic strengths. As fertilizer-releasing devices, the matrices would promote a controlled and sustained release of urea for more than 3 h, and the urea loaded onto ^GMAAC would only be released after the degradation of the matrix. Recycling tests suggest that the ^GMAAC-containing matrices would not have their performance compromised for at least 15 consecutive cycles of swelling and drying. However, a thorough and careful study of the degradation behavior and potential environmental impacts is a prospect of this work.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"716 ","pages":"Article 136741"},"PeriodicalIF":4.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725029","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}

{"title":"Optical sensing of insulin using liquid crystal orientational transitions triggered by insulin-aptamer interactions","authors":"Jiamei Chen ,&nbsp;Shijian Huang ,&nbsp;Minmin Zhang ,&nbsp;Mengjun Liu ,&nbsp;Mingliang Jin ,&nbsp;Qi Liang ,&nbsp;Zhenping Liu ,&nbsp;Lingling Shui","doi":"10.1016/j.colsurfa.2025.136682","DOIUrl":"10.1016/j.colsurfa.2025.136682","url":null,"abstract":"<div><div>Diabetes mellitus is a significant global health concern, with insulin playing an essential role in its pathogenesis. Early and sensitive detection of insulin is vital for effective diabetes management, necessitating an economic, facile, and sensitive, diagnostic method. Herein, we propose a label-free optical immunoassay for naked-eye and sensitive detection of insulin via specific target-aptamer binding event modulating the birefringence of nematic liquid crystals (LCs) of 4-cyano-4-pentylbiphenyl (5CB). The glass slide surface were functionalized with a combination of (3-Glycidoxypropyl)methyldiethoxysilane (GPTMS) and N,N-dimethyl-N-(3-(trimethoxysilyl)propyl)-1-octadecanaminium chloride (DMOAP), a modification that induces a perpendicular orientation of the LC film and introduces active epoxy groups. These epoxy groups on the surface exhibit an advantage of covalently binding to the amino-modified aptamer without the need for an additional linker. The specific recognition probes were immobilized onto the sensing substrate without disrupting the LCs orientation. Upon the addition of insulin, the aptamer preferentially binds to it through hydrogen bonding, resulting in a distinct bright LC texture that is visibly different from the pattern observed in the absence of insulin. Under optimized conditions, the method demonstrated a linear detection range for insulin from 0.05 to 3.0 nM. This approach is highly economical, requiring only 10 μL of reagent, and it exhibits excellent specificity, stability, and reproducibility. Additionally, the recovery rates, ranging from 95.43 % to 112.29 % in diluted human urine samples, show the potential of this LC-based aptasensor for practical applications in clinical and diagnostic settings.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"716 ","pages":"Article 136682"},"PeriodicalIF":4.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725031","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}