Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139653
Dong Wang , Shaohua Zhang , Baosheng Liu , Yinghui Wei , Lifeng Hou , Pengpeng Wu , Lijing Yang , Jianguang Kang
This study systematically investigates the effects of Ti and TiC nanoparticle composite additions on the microstructural characteristics, mechanical properties, and corrosion behavior of laser metal deposition-processed 316L austenitic stainless steel in proton exchange membrane fuel cell cathode environments. Research indicates that the material exhibits optimal corrosion resistance when incorporating 0.375 wt% Ti + 0.125 wt% TiC. This is attributed to grain refinement, increased dislocation density, and the formation of a dense passivation film. However, the best mechanical properties were exhibited when 0.250 wt% Ti + 0.125 wt% TiC was added, with mechanical properties decreasing as the Ti content increased.
本研究系统地研究了Ti和TiC纳米颗粒复合添加剂对激光金属沉积316L奥氏体不锈钢在质子交换膜燃料电池阴极环境下的显微组织特征、力学性能和腐蚀行为的影响。研究表明，当掺入0.375 wt% Ti + 0.125 wt% TiC时，材料具有最佳的耐腐蚀性。这是由于晶粒细化，位错密度增加，以及形成致密的钝化膜。当掺量为0.250 wt% Ti + 0.125 wt% TiC时，合金的力学性能最佳，随Ti含量的增加，合金的力学性能逐渐降低。
{"title":"Synergistic optimization of microstructure and properties of laser metal deposited 316L austenitic stainless steel by the composite addition of Ti/TiC nanoparticles","authors":"Dong Wang , Shaohua Zhang , Baosheng Liu , Yinghui Wei , Lifeng Hou , Pengpeng Wu , Lijing Yang , Jianguang Kang","doi":"10.1016/j.colsurfa.2026.139653","DOIUrl":"10.1016/j.colsurfa.2026.139653","url":null,"abstract":"<div><div>This study systematically investigates the effects of Ti and TiC nanoparticle composite additions on the microstructural characteristics, mechanical properties, and corrosion behavior of laser metal deposition-processed 316L austenitic stainless steel in proton exchange membrane fuel cell cathode environments. Research indicates that the material exhibits optimal corrosion resistance when incorporating 0.375 wt% Ti + 0.125 wt% TiC. This is attributed to grain refinement, increased dislocation density, and the formation of a dense passivation film. However, the best mechanical properties were exhibited when 0.250 wt% Ti + 0.125 wt% TiC was added, with mechanical properties decreasing as the Ti content increased.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139653"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036388","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139637
Yanling Wang , Yuting Yan , Ruifeng Xie , Yanqiu Wang , Junyi Wang , Maged Elhefnawey , Yawei Shao
Superhydrophobic SiO2 holds great promise for applications in self-cleaning, anti-icing, and anti-corrosion fields. However, current preparation methods often suffer from complicated procedures, poor environmental stability, and non-eco-friendliness. To address these challenges, a one-step (simultaneous completion of synthesis and modification) strategy for synthesizing superhydrophobic SiO2 nanoparticles (SSNs) at room temperature was developed. This process involves the incomplete hydrolytic condensation of γ-aminopropyltriethoxysilane (APTES) and tetraethyl orthosilicate (TEOS), catalyzed by aminopropyl (-(CH2)3NH2) and initiated by little water, resulting in the SSNs with micro/nano structures and surface-modified ethoxy (-OC2H5) / aminopropyl. The SSNs arises from the combined effect of low-surface-energy groups and micro/nanostructures. The SSNs have excellent superhydrophobicity with CA of 170.3 ° and SA of 1.7 °. Furthermore, the SSNs were introduced into epoxy resin (EP) to prepare SSNs-EP superhydrophobic coating with micron-scale roughness. In addition to having a CA of 166.2 °, the coating exhibits good performance in terms of wear resistance, durability and self-cleaning. This one-step synthetic approach is simple, environmentally benign, and efficient, offering a new route for the preparation of functionalized SiO2 materials.
{"title":"Facile one-step fabrication of superhydrophobic SiO2 and its application in water-repellent surfaces","authors":"Yanling Wang , Yuting Yan , Ruifeng Xie , Yanqiu Wang , Junyi Wang , Maged Elhefnawey , Yawei Shao","doi":"10.1016/j.colsurfa.2026.139637","DOIUrl":"10.1016/j.colsurfa.2026.139637","url":null,"abstract":"<div><div>Superhydrophobic SiO<sub>2</sub> holds great promise for applications in self-cleaning, anti-icing, and anti-corrosion fields. However, current preparation methods often suffer from complicated procedures, poor environmental stability, and non-eco-friendliness. To address these challenges, a one-step (simultaneous completion of synthesis and modification) strategy for synthesizing superhydrophobic SiO<sub>2</sub> nanoparticles (SSNs) at room temperature was developed. This process involves the incomplete hydrolytic condensation of γ-aminopropyltriethoxysilane (APTES) and tetraethyl orthosilicate (TEOS), catalyzed by aminopropyl (-(CH<sub>2</sub>)<sub>3</sub>NH<sub>2</sub>) and initiated by little water, resulting in the SSNs with micro/nano structures and surface-modified ethoxy (-OC<sub>2</sub>H<sub>5</sub>) / aminopropyl. The SSNs arises from the combined effect of low-surface-energy groups and micro/nanostructures. The SSNs have excellent superhydrophobicity with CA of 170.3 ° and SA of 1.7 °. Furthermore, the SSNs were introduced into epoxy resin (EP) to prepare SSNs-EP superhydrophobic coating with micron-scale roughness. In addition to having a CA of 166.2 °, the coating exhibits good performance in terms of wear resistance, durability and self-cleaning. This one-step synthetic approach is simple, environmentally benign, and efficient, offering a new route for the preparation of functionalized SiO<sub>2</sub> materials.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139637"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075093","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139652
ChengLin Li , Youlu Chu , Shengzhe Zhang , Wenqian Zhang , Yi Chen , Lei Zhang , Huining Xiao , Weibing Wu
The efficacy of conventional chemotherapy is often compromised by nonspecific distribution and severe systemic toxicity. To mitigate these issues, we developed a pH-responsive drug delivery platform based on cellulose nanocrystals (CNC), which employed a reversible imine bond mechanism for controlled drug release. A one-step periodate oxidation successfully converted CNC into dialdehyde cellulose (DAC), achieving concurrent precise size control (40–80 nm) and introduction of surface aldehyde functionalities. Subsequently, a stepwise functionalization approach was employed: amino-polyethylene glycol (PEG-NH2) was first grafted onto the DAC surface via a Schiff base reaction, followed by selective reduction to stabilize the linkage, thereby yielding a highly stable and dispersible DAC-PEG intermediate. The remaining aldehyde groups were then utilized to covalently conjugate doxorubicin (DOX) through pH-labile imine bonds, culminating in the final DOX-DAC-PEG nanocarrier. The resulting nanoparticles exhibited characteristics favorable for tumor accumulation, including a near-neutral Zeta potential of −4 mV and a hydrodynamic diameter below 100 nm. More importantly, the system demonstrated remarkable pH-responsive drug release behavior, showing a sustained and minimal release under physiological conditions (pH 7.4), while the release was markedly accelerated in simulated tumor microenvironment (pH 5.5) and lysosomal conditions (pH 3.0) respectively. Cytotoxicity assays confirmed the excellent biocompatibility of the blank DAC-PEG carrier (>90 % cell viability after 24 h). In contrast, the drug-loaded DOX-DAC-PEG nanoparticles effectively leveraged the intracellular acidic milieu to trigger DOX release, exerting significant time- and concentration-dependent inhibitory effects on 4T1 cancer cell proliferation, with a notably low IC50 value of 2.5 μΜ at 48 h.
{"title":"Cellulose nanocrystal carrier with schiff base-based responsive drug release","authors":"ChengLin Li , Youlu Chu , Shengzhe Zhang , Wenqian Zhang , Yi Chen , Lei Zhang , Huining Xiao , Weibing Wu","doi":"10.1016/j.colsurfa.2026.139652","DOIUrl":"10.1016/j.colsurfa.2026.139652","url":null,"abstract":"<div><div>The efficacy of conventional chemotherapy is often compromised by nonspecific distribution and severe systemic toxicity. To mitigate these issues, we developed a pH-responsive drug delivery platform based on cellulose nanocrystals (CNC), which employed a reversible imine bond mechanism for controlled drug release. A one-step periodate oxidation successfully converted CNC into dialdehyde cellulose (DAC), achieving concurrent precise size control (40–80 nm) and introduction of surface aldehyde functionalities. Subsequently, a stepwise functionalization approach was employed: amino-polyethylene glycol (PEG-NH<sub>2</sub>) was first grafted onto the DAC surface via a Schiff base reaction, followed by selective reduction to stabilize the linkage, thereby yielding a highly stable and dispersible DAC-PEG intermediate. The remaining aldehyde groups were then utilized to covalently conjugate doxorubicin (DOX) through pH-labile imine bonds, culminating in the final DOX-DAC-PEG nanocarrier. The resulting nanoparticles exhibited characteristics favorable for tumor accumulation, including a near-neutral Zeta potential of −4 mV and a hydrodynamic diameter below 100 nm. More importantly, the system demonstrated remarkable pH-responsive drug release behavior, showing a sustained and minimal release under physiological conditions (pH 7.4), while the release was markedly accelerated in simulated tumor microenvironment (pH 5.5) and lysosomal conditions (pH 3.0) respectively. Cytotoxicity assays confirmed the excellent biocompatibility of the blank DAC-PEG carrier (>90 % cell viability after 24 h). In contrast, the drug-loaded DOX-DAC-PEG nanoparticles effectively leveraged the intracellular acidic milieu to trigger DOX release, exerting significant time- and concentration-dependent inhibitory effects on 4T1 cancer cell proliferation, with a notably low IC<sub>50</sub> value of 2.5 μΜ at 48 h.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139652"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146045185","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139650
Yang Liu , Lingshuai Kong , Haibin Li , Yue Pan , Yating Zhang , Jinhua Zhan
Single-atom nanozymes (SAzymes) with well-defined coordination micro-environment hold promise as antibacterial agents. Subject to the sluggish electron transfer efficiency of the fully occupied 3d10 electron configuration of Zn2+ in the conventional tetra-coordinate Zn-N4 structure, the oxidase-like activity of zinc SAzymes is often limited. Herein, we precisely construct a tri-coordinated Zn-N3/NC SAzyme with Zn+ (3d104s1) via a dicyandiamide-assisted coordination-pyrolysis method to activate the Zn 4 s electrons, enabling significantly enhanced oxidase-like antibacterial performance. Combined experimental and theoretical studies unveil that the coordination-unsaturated Zn-N3 moiety in Zn-N3/NC is crucial, which retains the 4 s electrons. The formed Zn+ (3d104s1) thermodynamically optimizes the adsorption and electron transfer between the active site and molecular oxygen (O2), kinetically facilitating the stepwise single-electron reduction of O2 (O2 → O2•− → H2O2 → •OH). This contrasts with the Zn2+ in the Zn-N4 configuration, which only catalyzes the one-electron reduction of O2 to generate a small amount of O2•−. The ability of the Zn-N3/NC cascade to generate reactive oxygen species realizes a record-high oxidase-like activity among Zn SAzymes, and almost 100 % antibacterial performance. Moreover, Zn-N3/NC can be incorporated into a hydrogel-based antibacterial dressing, showing potential for application in treating bacterial-infected wounds. This work proposes a theoretical and practical framework for the further development of antibacterial nanozymes.
{"title":"Atomically dispersed Zn-N3 sites boost ROS production for enhanced oxidase-like antibacterial performance","authors":"Yang Liu , Lingshuai Kong , Haibin Li , Yue Pan , Yating Zhang , Jinhua Zhan","doi":"10.1016/j.colsurfa.2026.139650","DOIUrl":"10.1016/j.colsurfa.2026.139650","url":null,"abstract":"<div><div>Single-atom nanozymes (SAzymes) with well-defined coordination micro-environment hold promise as antibacterial agents. Subject to the sluggish electron transfer efficiency of the fully occupied 3<em>d</em><sup>10</sup> electron configuration of Zn<sup>2+</sup> in the conventional tetra-coordinate Zn-N<sub>4</sub> structure, the oxidase-like activity of zinc SAzymes is often limited. Herein, we precisely construct a tri-coordinated Zn-N<sub>3</sub>/NC SAzyme with Zn<sup>+</sup> (3<em>d</em><sup>10</sup>4<em>s</em><sup>1</sup>) via a dicyandiamide-assisted coordination-pyrolysis method to activate the Zn 4 <em>s</em> electrons, enabling significantly enhanced oxidase-like antibacterial performance. Combined experimental and theoretical studies unveil that the coordination-unsaturated Zn-N<sub>3</sub> moiety in Zn-N<sub>3</sub>/NC is crucial, which retains the 4 <em>s</em> electrons. The formed Zn<sup>+</sup> (3<em>d</em><sup>10</sup>4<em>s</em><sup>1</sup>) thermodynamically optimizes the adsorption and electron transfer between the active site and molecular oxygen (O<sub>2</sub>), kinetically facilitating the stepwise single-electron reduction of O<sub>2</sub> (O<sub>2</sub> → O<sub>2</sub><sup>•−</sup> → H<sub>2</sub>O<sub>2</sub> → •OH). This contrasts with the Zn<sup>2+</sup> in the Zn-N<sub>4</sub> configuration, which only catalyzes the one-electron reduction of O<sub>2</sub> to generate a small amount of O<sub>2</sub><sup>•−</sup>. The ability of the Zn-N<sub>3</sub>/NC cascade to generate reactive oxygen species realizes a record-high oxidase-like activity among Zn SAzymes, and almost 100 % antibacterial performance. Moreover, Zn-N<sub>3</sub>/NC can be incorporated into a hydrogel-based antibacterial dressing, showing potential for application in treating bacterial-infected wounds. This work proposes a theoretical and practical framework for the further development of antibacterial nanozymes.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139650"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036129","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139636
Yuedong Li , Hongdan Wu , Zhihui Zhou , Xianyuan Fan , Wenming Fu , Guoyuan Lei , Qiuyang Huang , Junlin Peng
To address the structural defects and performance limitations caused by nanoparticle aggregation and insufficient interfacial compatibility in conventional thin-film nanocomposite polyamide (PA) nanofiltration membranes, an interfacial engineering strategy was developed to construct organic solvent nanofiltration membranes via the in situ growth of amino-functionalized ZIF-8 (ZIF-8-NH2) nanoparticles. A continuous and well-anchored ZIF-8-NH2 interlayer was introduced between the polyimide support and the PA selective layer, which effectively mitigated nanoparticle aggregation and enhanced interfacial integrity, thereby promoting the formation of a dense and uniform PA layer. Performance evaluation demonstrated that, at an optimized ZIF-8-NH2 growth cycle of three, the resulting membrane exhibited a pure-water permeance of 41.3 L·m−2·h−1·bar−1 and a methanol permeance of 16.9 L·m−2·h−1·bar−1, while achieving rejection values of 65.1 % for NaCl and 99.9 % for Na2SO4. In ethanol, the membrane exhibited a low molecular weight cutoff of 456 g·mol−1 and maintained Congo red rejection above 99 % during continuous operation for 5 days, confirming its structural stability and operational durability.
{"title":"Constructing polyamide nanofiltration membranes via interfacial growth of aminated ZIF-8 for enhanced flux and selectivity","authors":"Yuedong Li , Hongdan Wu , Zhihui Zhou , Xianyuan Fan , Wenming Fu , Guoyuan Lei , Qiuyang Huang , Junlin Peng","doi":"10.1016/j.colsurfa.2026.139636","DOIUrl":"10.1016/j.colsurfa.2026.139636","url":null,"abstract":"<div><div>To address the structural defects and performance limitations caused by nanoparticle aggregation and insufficient interfacial compatibility in conventional thin-film nanocomposite polyamide (PA) nanofiltration membranes, an interfacial engineering strategy was developed to construct organic solvent nanofiltration membranes via the <em>in situ</em> growth of amino-functionalized ZIF-8 (ZIF-8-NH<sub>2</sub>) nanoparticles. A continuous and well-anchored ZIF-8-NH<sub>2</sub> interlayer was introduced between the polyimide support and the PA selective layer, which effectively mitigated nanoparticle aggregation and enhanced interfacial integrity, thereby promoting the formation of a dense and uniform PA layer. Performance evaluation demonstrated that, at an optimized ZIF-8-NH<sub>2</sub> growth cycle of three, the resulting membrane exhibited a pure-water permeance of 41.3 L·m<sup>−2</sup>·h<sup>−1</sup>·bar<sup>−1</sup> and a methanol permeance of 16.9 L·m<sup>−2</sup>·h<sup>−1</sup>·bar<sup>−1</sup>, while achieving rejection values of 65.1 % for NaCl and 99.9 % for Na<sub>2</sub>SO<sub>4</sub>. In ethanol, the membrane exhibited a low molecular weight cutoff of 456 g·mol<sup>−1</sup> and maintained Congo red rejection above 99 % during continuous operation for 5 days, confirming its structural stability and operational durability.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139636"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036207","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139668
Maira Rievrs Nogueira Alvares , Vanessa de Moura Queiroz , Paula Mendes Jardim , Rossana Mara da Silva Moreira Thiré
The growing demand for sustainable and high-throughput production of advanced antimicrobial materials requires the development of rapid, solvent-efficient fabrication strategies. In this work, we report a robust approach for producing antimicrobial fibrous mats of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) containing in-situ-synthesized silver nanoparticles (AgNPs). By combining solution blow spinning with UV-assisted photoreduction, Ag⁺ ions were converted to Ag⁰ in only 10 min—significantly faster than conventional routes. UV irradiation induced PHBV chain scission and radical formation, which enabled the nucleation of well-dispersed AgNPs as small as 3.6 nm. PHBV concentration influenced the viscosity, nanoparticle size, and aggregation behavior. The resulting mats released minimal amounts of silver while exhibiting potent antibacterial activity against E. coli, demonstrating the critical role of nanoscale control. This work provides new insights into UV-driven inorganic nanoparticle formation in biopolymer matrices and offers a scalable pathway for fabricating metal–polymer antimicrobial materials.
{"title":"High-throughput fabrication of antimicrobial PHBV fiber mats via UV-assisted in situ silver nanoparticle synthesis","authors":"Maira Rievrs Nogueira Alvares , Vanessa de Moura Queiroz , Paula Mendes Jardim , Rossana Mara da Silva Moreira Thiré","doi":"10.1016/j.colsurfa.2026.139668","DOIUrl":"10.1016/j.colsurfa.2026.139668","url":null,"abstract":"<div><div>The growing demand for sustainable and high-throughput production of advanced antimicrobial materials requires the development of rapid, solvent-efficient fabrication strategies. In this work, we report a robust approach for producing antimicrobial fibrous mats of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) containing in-situ-synthesized silver nanoparticles (AgNPs). By combining solution blow spinning with UV-assisted photoreduction, Ag⁺ ions were converted to Ag⁰ in only 10 min—significantly faster than conventional routes. UV irradiation induced PHBV chain scission and radical formation, which enabled the nucleation of well-dispersed AgNPs as small as 3.6 nm. PHBV concentration influenced the viscosity, nanoparticle size, and aggregation behavior. The resulting mats released minimal amounts of silver while exhibiting potent antibacterial activity against <em>E. coli</em>, demonstrating the critical role of nanoscale control. This work provides new insights into UV-driven inorganic nanoparticle formation in biopolymer matrices and offers a scalable pathway for fabricating metal–polymer antimicrobial materials.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139668"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036290","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}
The discharge of highly stable, toxic synthetic dye residues from the textile and aquatic industries causes persistent water pollution, posing serious threats to aquatic ecosystems and human health. To address this challenge, we synthesized a novel ZnO-Y2O3 nanocomposite using bael gum as an eco-friendly natural stabilizing agent. Photocatalytic degradation studies using brilliant green (BGN) dye demonstrated that the ZnO-Y2O3 nanocomposite achieved a superior degradation efficiency of 96.10 % within 75 min under visible light irradiation, with an apparent rate constant of 0.033 min⁻¹. The effects of various operational parameters, including scavengers, dye concentration, pH, catalyst dosage, humic acid, reusability, and inorganic anions, were systematically investigated. Radical trapping experiments confirmed that superoxide (•O₂⁻) radicals was the primary reactive species involved in BGN degradation. An environmental toxicity analysis using the Ecological Structure-Activity Relationship (ECOSAR) computational model indicated reduced toxicity of the degradation intermediates. Furthermore, phytotoxicity assays using Vigna unguiculata demonstrated enhanced plant growth, with treated dye effluents yielding root and shoot lengths respectively, compared with untreated samples. The ZnO-Y₂O₃ nanocomposite demonstrates remarkable photocatalytic efficiency and environmental compatibility, making it a promising green catalyst for wastewater purification and sustainable environmental remediation.
{"title":"Green-engineered rare-earth–doped ZnO-Y2O3 nanocomposites for efficient textile dye degradation: Operational parameter, environmental toxicity evaluation, and agricultural safety assessment","authors":"Kasula Nagaraja , Boya Mallika , Muthuraj Arunpandian , Nagaraju Macherla , Tae Hwan Oh","doi":"10.1016/j.colsurfa.2026.139664","DOIUrl":"10.1016/j.colsurfa.2026.139664","url":null,"abstract":"<div><div>The discharge of highly stable, toxic synthetic dye residues from the textile and aquatic industries causes persistent water pollution, posing serious threats to aquatic ecosystems and human health. To address this challenge, we synthesized a novel ZnO-Y<sub>2</sub>O<sub>3</sub> nanocomposite using bael gum as an eco-friendly natural stabilizing agent. Photocatalytic degradation studies using brilliant green (BGN) dye demonstrated that the ZnO-Y<sub>2</sub>O<sub>3</sub> nanocomposite achieved a superior degradation efficiency of 96.10 % within 75 min under visible light irradiation, with an apparent rate constant of 0.033 min⁻¹. The effects of various operational parameters, including scavengers, dye concentration, pH, catalyst dosage, humic acid, reusability, and inorganic anions, were systematically investigated. Radical trapping experiments confirmed that superoxide (•O₂⁻) radicals was the primary reactive species involved in BGN degradation. An environmental toxicity analysis using the Ecological Structure-Activity Relationship (ECOSAR) computational model indicated reduced toxicity of the degradation intermediates. Furthermore, phytotoxicity assays using <em>Vigna unguiculata</em> demonstrated enhanced plant growth, with treated dye effluents yielding root and shoot lengths respectively, compared with untreated samples. The ZnO-Y₂O₃ nanocomposite demonstrates remarkable photocatalytic efficiency and environmental compatibility, making it a promising green catalyst for wastewater purification and sustainable environmental remediation.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139664"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036343","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139638
Hecheng Yao , Shuyi Li , Chaohuan Yang , Chenchen Liao , Yuchan Li , Zhimin Guo , Guoyong Wang , Yan Liu
With the growing emphasis on personalized health management, point-of-care testing has garnered significant interest, creating a pressing demand for biosensors that are both highly sensitive and user-friendly. Herein, we develop a dual-function sensor on a Janus fabric for monitoring sweat glucose and lactate. The Janus material provides the critical function of unidirectional sweat transport for efficient collection while also being endowed with antibacterial properties and breathability to ensure user comfort during extended wear. The electrochemical electrode was fabricated via a sequential process of screen-printing, electropolymerization of Prussian blue, and modification with MXene and specific enzymes. The incorporation of MXene significantly reduces the electrical impedance of the electrode, thereby enhancing its electrochemical performance. The sensor offers broad detection ranges (0–500 μM for glucose and 0–25 mM for lactate) with low detection limits (0.6 μM and 0.145 mM, respectively). Furthermore, the detection sensors exhibit outstanding long-term stability, excellent reproducibility, and strong anti-interference capability. Moreover, the integrated sensor successfully monitored changes in glucose and lactate concentrations in human sweat, demonstrating significant potential for applications in health management and exercise monitoring.
{"title":"MXene-based sweat sensor integrated with Janus fabric for glucose and lactate detection","authors":"Hecheng Yao , Shuyi Li , Chaohuan Yang , Chenchen Liao , Yuchan Li , Zhimin Guo , Guoyong Wang , Yan Liu","doi":"10.1016/j.colsurfa.2026.139638","DOIUrl":"10.1016/j.colsurfa.2026.139638","url":null,"abstract":"<div><div>With the growing emphasis on personalized health management, point-of-care testing has garnered significant interest, creating a pressing demand for biosensors that are both highly sensitive and user-friendly. Herein, we develop a dual-function sensor on a Janus fabric for monitoring sweat glucose and lactate. The Janus material provides the critical function of unidirectional sweat transport for efficient collection while also being endowed with antibacterial properties and breathability to ensure user comfort during extended wear. The electrochemical electrode was fabricated via a sequential process of screen-printing, electropolymerization of Prussian blue, and modification with MXene and specific enzymes. The incorporation of MXene significantly reduces the electrical impedance of the electrode, thereby enhancing its electrochemical performance. The sensor offers broad detection ranges (0–500 μM for glucose and 0–25 mM for lactate) with low detection limits (0.6 μM and 0.145 mM, respectively). Furthermore, the detection sensors exhibit outstanding long-term stability, excellent reproducibility, and strong anti-interference capability. Moreover, the integrated sensor successfully monitored changes in glucose and lactate concentrations in human sweat, demonstrating significant potential for applications in health management and exercise monitoring.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139638"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036455","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139669
Manman Zhao , Caixia He , Fan Xiang , Zhanxiong Li
Superhydrophobic polyester (PET) fabrics have attracted considerable attention for their potential in self-cleaning, oil-water separation, and anti-icing applications, benefiting from the durability, low cost, and wide availability of the material. However, conventional fabrication techniques such as spraying and chemical deposition often involve complex procedures and employ hazardous fluorinated chemicals, which hinder their practical adoption. In this study, a facile and eco-friendly vapor-induced phase separation (VIPS) strategy is developed to fabricate stable micro-structured superhydrophobic coatings on PET fabric while preserving its inherent flexibility and breathability. A linear block copolymer, polystyrene-b-polysiloxane (PS-b-PDMS), was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. A uniform microsphere coating was then fabricated on the PET fabric through an ethanol-assisted VIPS (E-VIPS) process. This coating synergistically combined microscale roughness with the low surface energy of polysiloxane. The modified fabric exhibited a water contact angle of 166.9 ± 0.2°, along with excellent self-cleaning performance, sustained oil-water separation efficiency, and improved anti-icing properties, showing a freezing delay time of 150.0 s at −20°C. The coating also demonstrated high mechanical and chemical durability. Owing to its strong substrate adaptability, this VIPS-based method can be readily extended to other types of fabrics, offering a scalable and efficient platform for the design of advanced multifunctional textiles.
{"title":"Facile fabrication of superhydrophobic microstructure coated fabric by vapor-induced phase separation: Synthesis of polysiloxane-b-polystyrene and its application","authors":"Manman Zhao , Caixia He , Fan Xiang , Zhanxiong Li","doi":"10.1016/j.colsurfa.2026.139669","DOIUrl":"10.1016/j.colsurfa.2026.139669","url":null,"abstract":"<div><div>Superhydrophobic polyester (PET) fabrics have attracted considerable attention for their potential in self-cleaning, oil-water separation, and anti-icing applications, benefiting from the durability, low cost, and wide availability of the material. However, conventional fabrication techniques such as spraying and chemical deposition often involve complex procedures and employ hazardous fluorinated chemicals, which hinder their practical adoption. In this study, a facile and eco-friendly vapor-induced phase separation (VIPS) strategy is developed to fabricate stable micro-structured superhydrophobic coatings on PET fabric while preserving its inherent flexibility and breathability. A linear block copolymer, polystyrene-b-polysiloxane (PS-<em>b</em>-PDMS), was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. A uniform microsphere coating was then fabricated on the PET fabric through an ethanol-assisted VIPS (E-VIPS) process. This coating synergistically combined microscale roughness with the low surface energy of polysiloxane. The modified fabric exhibited a water contact angle of 166.9 ± 0.2°, along with excellent self-cleaning performance, sustained oil-water separation efficiency, and improved anti-icing properties, showing a freezing delay time of 150.0 s at −20°C. The coating also demonstrated high mechanical and chemical durability. Owing to its strong substrate adaptability, this VIPS-based method can be readily extended to other types of fabrics, offering a scalable and efficient platform for the design of advanced multifunctional textiles.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"736 ","pages":"Article 139669"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036456","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}
Pub Date : 2026-01-20DOI: 10.1016/j.colsurfa.2026.139662
Mohammad Salim, Mohd Akram, Saif Uz Zafar, Kabir-ud-Din
Porcine serum albumin (PSA) is the least utilized serum albumin for the interactions of the protein-gemini surfactant systems. This research investigation employs tensiometry and multiple spectroscopic methods to explore the binding abilities of PSA with a series of biodegradable diester-based cationic gemini surfactants (Cm-E2O2-Cm, where m represents the hydrocarbon chain length, viz 12,14, and 16, and E2O2 is the diester-mediated spacer). Tensiometric study discusses and investigates the interaction of gemini surfactants with PSA in different concentration regimes at the air/solution interface and in the bulk, depending on their chain lengths. Intrinsic fluorescence spectroscopy revealed substantial static quenching of PSA emission, with Stern-Volmer values near 10⁵M⁻¹ and quenching rate constants approximately 10 ¹ ³ M⁻¹s⁻¹ , indicating the development of ground-state complexes. The binding constants obtained from the modified Stern-Volmer analysis demonstrated an increase with the length of the hydrophobic chain, varying from 2.105105M−1, 3.143105M−1, to 3.358105M−1 for C12-E2O2-C12, C14-E2O2-C14, and C16-E2O2-C16, respectively. Far-UV circular dichroism spectroscopy demonstrated that the surfactants induced significant alterations in the conformation of the protein. The α-helical content of PSA decreased from 59.03 % in the native protein to 34.96 %, 33.47 %, and 29.49 % upon interaction with C12-E2O2-C12, C14-E2O2-C14, and C16-E2O2-C16 gemini surfactants, respectively. Synchronous, pyrene probe, and 3-D fluorescence validate the complexation of PSA-Cm-E2O2-Cm. UV–visible, FT-IR, Dynamic light scattering (DLS), and zeta potential studies also suggest ground-state complexation involving the biomolecule and amphiphilic surfactants. These encouraging findings suggest that Cm-E2O2-Cm could be used as a viable excipient in medication delivery, cosmetics, and immunoassay reagent formulations.
{"title":"Molecular analysis of the interaction and the unfolding behavior of porcine serum albumin with cationic biodegradable gemini surfactants","authors":"Mohammad Salim, Mohd Akram, Saif Uz Zafar, Kabir-ud-Din","doi":"10.1016/j.colsurfa.2026.139662","DOIUrl":"10.1016/j.colsurfa.2026.139662","url":null,"abstract":"<div><div>Porcine serum albumin (PSA) is the least utilized serum albumin for the interactions of the protein-gemini surfactant systems. This research investigation employs tensiometry and multiple spectroscopic methods to explore the binding abilities of PSA with a series of biodegradable diester-based cationic gemini surfactants (C<sub>m</sub>-E2O2-C<sub>m</sub>, where m represents the hydrocarbon chain length, viz 12,14, and 16, and E2O2 is the diester-mediated spacer). Tensiometric study discusses and investigates the interaction of gemini surfactants with PSA in different concentration regimes at the air/solution interface and in the bulk, depending on their chain lengths. Intrinsic fluorescence spectroscopy revealed substantial static quenching of PSA emission, with Stern-Volmer values near 10⁵M⁻¹ and quenching rate constants approximately 10 ¹ ³ M⁻¹s⁻¹ , indicating the development of ground-state complexes. The binding constants obtained from the modified Stern-Volmer analysis demonstrated an increase with the length of the hydrophobic chain, varying from 2.105<span><math><mo>×</mo></math></span>10<sup>5</sup>M<sup>−1</sup>, 3.143<span><math><mo>×</mo></math></span>10<sup>5</sup>M<sup>−1</sup>, to 3.358<span><math><mo>×</mo></math></span>10<sup>5</sup>M<sup>−1</sup> for C<sub>12</sub>-E2O2-C<sub>12</sub>, C<sub>14</sub>-E2O2-C<sub>14</sub>, and C<sub>16</sub>-E2O2-C<sub>16</sub>, respectively. Far-UV circular dichroism spectroscopy demonstrated that the surfactants induced significant alterations in the conformation of the protein. The α-helical content of PSA decreased from 59.03 % in the native protein to 34.96 %, 33.47 %, and 29.49 % upon interaction with C<sub>12</sub>-E2O2-C<sub>12</sub>, C<sub>14</sub>-E2O2-C<sub>14,</sub> and C<sub>16</sub>-E2O2-C<sub>16</sub> gemini surfactants, respectively. Synchronous, pyrene probe, and 3-D fluorescence validate the complexation of PSA-C<sub>m</sub>-E2O2-C<sub>m</sub>. UV–visible, FT-IR, Dynamic light scattering (DLS), and zeta potential studies also suggest ground-state complexation involving the biomolecule and amphiphilic surfactants. These encouraging findings suggest that C<sub>m</sub>-E2O2-C<sub>m</sub> could be used as a viable excipient in medication delivery, cosmetics, and immunoassay reagent formulations.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"737 ","pages":"Article 139662"},"PeriodicalIF":5.4,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076498","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号