ACS Applied Materials & Interfaces最新文献

{"title":"Development and Characterization of Biocompatible Chitosan-Aloe Vera Films Functionalized with Gluconolactone and Sorbitol for Advanced Wound Healing Applications","authors":"Beata Kaczmarek-Szczepańska, Patrycja Glajc, Dorota Chmielniak, Klaudia Gwizdalska, Maria Swiontek Brzezinska, Katarzyna Dembińska, Ambika H. Shinde, Magdalena Gierszewska, Krzysztof Łukowicz, Agnieszka Basta-Kaim, Ugo D’Amora, Lidia Zasada","doi":"10.1021/acsami.5c00715","DOIUrl":"https://doi.org/10.1021/acsami.5c00715","url":null,"abstract":"Chitosan (CTS) has emerged as a promising biopolymer for wound healing due to its biocompatibility, biodegradability, and intrinsic bioactive properties. This study explores the development and characterization of CTS-based films enhanced with natural bioactive agents, aloe vera (A), gluconolactone (GL), and sorbitol (S), to improve their mechanical, antimicrobial, and regenerative performance for potential use in advanced wound care. A series of CTS-based films were fabricated with varying concentrations of A, GL, and S, and their physicochemical, mechanical, and biological properties were comprehensively evaluated. Fourier transform infrared (FTIR) spectroscopy and atomic force microscopy (AFM) analysis revealed modifications in the film structure attributable to these additives, influencing the surface roughness, hydrophilicity, and thermal stability. Biocidal assays confirmed enhanced antimicrobial activity, particularly in films containing GL and A. Biodegradation studies demonstrated a significant enhancement in microbial decomposition of the films, while cytocompatibility tests confirmed minimal cytotoxic effects and improved cellular response. This research underscores the potential of combining CS with A, GL, and S to engineer multifunctional biomaterials tailored for effectively tackling different phases of the wound healing process, offering a sustainable and biocompatible alternative for clinical applications.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"14 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kirigami-Inspired Light-Responsive Conical Spiral Actuators with Large Contraction Ratio Using Liquid Crystal Elastomer Fiber","authors":"Cunping Bai, Jingtian Kang, Yan Qing Wang","doi":"10.1021/acsami.4c20234","DOIUrl":"https://doi.org/10.1021/acsami.4c20234","url":null,"abstract":"Liquid crystal elastomers (LCEs) are among the key smart materials driving soft robotics and LCE fibers have garnered significant attention for their rapid response characteristics. A convenient and fast method for programming orientations of liquid crystal molecules is a focal issue in LCE applications. Inspired by the Kirigami technique, here, we propose a novel method for fabricating LCE fibers based on customizable cutting paths and secondary photo-cross-linking. While most existing LCE actuators exhibit contraction ratios of around 30 to 40%, our conical spiral actuator, fabricated from LCE-carbon nanotube (CNT) fiber using the proposed method, demonstrates a significantly higher contraction ratio, reaching up to 80%. The contraction ratio can be controlled by adjusting the cutting path parameters and we elucidate the mechanism linking liquid crystal orientation to the distribution of contraction ratio. Additionally, the conical spiral deformation of the actuator can be manipulated with light radiation, enabling versatile functionalities such as catching, twisting, and gripping. We hope that the novel LCE fiber fabrication method presented provides new insights for programming and preparing LCE fibers, offering a valuable reference for the application of smart soft materials.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"16 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-Life Quasi-Solid-State Lithium–Oxygen Battery Enabled by the Gel Polymer Electrolyte and Redox Moieties Anchored in the Cathode","authors":"Qizhe Chen, Wenbin Tang, Meiying Kuai, Guowei Gao, Yuyang Hou, Qinghong Huang, Weiwei Fang, Yuhui Chen, Lili Liu, Yuping Wu","doi":"10.1021/acsami.4c22709","DOIUrl":"https://doi.org/10.1021/acsami.4c22709","url":null,"abstract":"The practical development of Li–O₂ batteries is often hindered by poor cycling stability, which arises from volatile liquid electrolytes, an unstable anode/electrolyte interface, and sluggish reaction kinetics related to Li₂O₂. In this study, we design a long-life quasi-solid-state Li–O₂ battery by integrating a gel polymer electrolyte (GPE) with a tetramethylpiperidinyloxy (TEMPO) redox mediator anchored in a poly(2,2,6,6-tetramethylpiperidinyloxy-4-methacrylate) (PTMA) cathode. During cycling, the GPE stabilizes the lithium/electrolyte interface and retains the electrolyte, while the TEMPO moieties anchored in the PTMA cathode effectively enhance the catalytic selectivity for Li₂O₂ formation and decomposition. This innovative design significantly improves electrochemical performance, achieving an impressive lifespan of 800 h. The advancements in rechargeability and efficiency presented in this work are expected to pave the way for the development of long-lived solid-state Li–O₂ batteries.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"11 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upcycling Spent Poly(ethylene oxide) Electrolytes into High-Value-Added Lithium Fluoride Nanowhiskers","authors":"Ke Yue, Shihui Zou, Jiaao Wang, Hengyu Feng, Ke Wang, Gongxun Lu, Cong Ma, Xiaohan Cai, Jiale Zheng, Juxin Yue, Jianwei Nai, Yao Wang, Jianmin Luo, Huadong Yuan, Xinyong Tao, Yujing Liu","doi":"10.1021/acsami.5c00245","DOIUrl":"https://doi.org/10.1021/acsami.5c00245","url":null,"abstract":"All-solid-state batteries (ASSBs) represent a transformative advancement in energy storage, distinguished by their superior safety and energy density. However, the sustainable development of ASSBs depends critically on the effective recycling of solid electrolytes and electrode materials from spent batteries, which poses significant challenges. Here, we present a facile and high-value-added carbothermal strategy for recycling spent poly(ethylene oxide) (PEO)-based electrolytes. This approach enables the direct synthesis of one-dimensional lithium fluoride nanowhiskers (1D-LiF) by utilizing the spent PEO-based electrolytes and the surface dead Li components. Through systematic investigation, we identify two mechanisms for the growth of 1D-LiF nanowhiskers and demonstrate the high value of these 1D LiF nanowhiskers in developing advanced composite electrolytes. This simple and efficient upcycling strategy serves as a valuable reference for the recycling of other solid-state electrolytes and supports the sustainable development of ASSBs. The metal-catalysis-free synthesis of LiF nanowhiskers also provides an instructive method for the rational synthesis of 1D metal halide nanomaterials.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"27 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exchange Coupling-Induced Spin Dynamic Damping Modulation at the Py/FeMn Interface","authors":"Mingming Tian, Qian Chen, Wei Jiang, Qingjie Guo, Ruobai Liu, Jun Du, Zhaocong Huang, Ya Zhai","doi":"10.1021/acsami.4c18113","DOIUrl":"https://doi.org/10.1021/acsami.4c18113","url":null,"abstract":"The spin dynamic damping is crucial for applications in magnetic memory, sensors, and logical systems. Here, focusing on interfacial antiferromagnetic exchange coupling, the magneto-dynamics of Ni₈₀Fe₂₀(Py)/Fe₅₀Mn₅₀(FeMn) bilayers is systematically investigated. When the FeMn thickness exceeds 5 nm, an interfacial exchange bias field appears, significantly increasing the spin dynamic damping of the Py/FeMn bilayer to around 0.015. A Cu spacer is introduced between the Py and FeMn layers, and the interfacial exchange bias effect is eliminated following a dramatic decrease in the spin dynamic damping. However, a slight damping increment is observed in Py/Cu/FeMn trilayers, which is attributed to the spin pumping mechanism. Based on spin pumping theory, the estimated interfacial spin mixing conductance is 3.44 nm^–2 in Py/Cu/FeMn, which is attributed to the weak spin–orbit coupling of the FeMn layer. These findings indicate that the dynamic damping of Py/FeMn bilayers is primarily driven by interfacial exchange coupling rather than the spin pumping effect. Furthermore, by employing FeMn as an insertion at Py/Pt and Py/Cu interfaces, we demonstrate the short spin diffusion length for the FeMn layer, and we confirm the critical role of interfacial exchange coupling in enhancing spin dynamic damping. The exchange coupling at the Py/FeMn interface facilitates spin relaxation, resulting in the damping enhancement and blocking spin transmission from the Py to Pt (Cu) layer. These findings suggest that integrating antiferromagnetic materials with exchange coupling interfaces could significantly boost high-frequency spintronic applications.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"66 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shape Optimization of Nanopores by Dissolutive Flow","authors":"Shihao Tian, Han Qin, Quanzi Yuan","doi":"10.1021/acsami.4c22605","DOIUrl":"https://doi.org/10.1021/acsami.4c22605","url":null,"abstract":"Nanopores are ubiquitous across disciplines, ranging from bioscience to energy science. Enhancing their transport properties and energy storage capability is crucial to improving functionality. Dissolutive flow, which involves the removal of geometrical obstructions, can transform solid structures into shapes that are less obstructive. In this study, we utilized molecular dynamics simulations to optimize the shape of nanopores through a dissolution-based approach, resulting in optimized inlet and outlet configurations. Furthermore, we examined the distribution of pressure and stress to elucidate the mechanisms underlying shape evolution and edge effects. Conventional inlets impede liquid flow due to high pressure at the apex, a phenomenon we refer to as the reservoir pattern. As dissolution progresses, the apex pressure is significantly reduced over time, allowing a transition to the sliding pattern. By manipulating the dissolubility, wall velocity, and nanopore length, the optimized shape can be fine-tuned. Experiments conducted at the microscale confirmed the emergence of analogous optimized shapes. Additionally, we investigated the transport properties and energy storage capability of various nanopores using molecular dynamics simulations, demonstrating that the optimized nanopore can significantly reduce the hydrodynamic resistance and accelerate the charging rate. This research offers theoretical insights into nanopore dissolution and presents a viable strategy for the practical fabrication of optimized nanopores.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"35 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of a CuO2@PDA Nanozyme with Switchable Dual Enzyme-Mimic Activities for Colorimetric Sensing of Catechol and Hydroquinone","authors":"Haiyan Zhang, Yitong Chen, Yanhui Wei, Xiaokang Zhang, Hongchao Ma","doi":"10.1021/acsami.5c00904","DOIUrl":"https://doi.org/10.1021/acsami.5c00904","url":null,"abstract":"The development of metal-based redox nanozymes represents a new frontier in pollutant sensing. In this field, designing highly active nanozymes and precisely regulating their enzymatic activity are key challenges. In this work, we report the construction of a copper peroxide@polydopamine (CuO₂@PDA) nanozyme with dual enzyme-like activity, mimicking the active centers of laccase and peroxidase. Here, CuO₂ acts as the catalytic center, while PDA serves as a carrier to prevent CuO₂ aggregation and promotes conversion of Cu^II/Cu^I active sites via the reduction effect of its surface catechol groups to complete the catalytic cycle. As expected, the obtained CuO₂@PDA nanozyme exhibits significant laccase- and peroxidase-mimetic activities. Moreover, its dual enzymatic activity can be systematically switched by adjusting pH and temperature. Specifically, laccase activity dominates near neutral pH, while CuO₂ decomposition into Cu ions and H₂O₂ at acidic pH triggers peroxidase activity. Similarly, CuO₂@PDA exhibits temperature-dependent dual enzymatic activity with peroxidase activity prevailing at low temperatures and laccase activity at high temperatures. According to enzymatic performance and XPS results, a possible catalytic mechanism of the dual enzymatic activity of CuO₂@PDA has been proposed. Then, based on the pH-dependent dual enzymatic activity of CuO₂@PDA, we constructed a detection system for the isomers of organic pollutants, catechol (CC) and hydroquinone (HQ). The laccase-like activity of CuO₂@PDA enables direct oxidation of CC into yellow o-benzoquinone, while HQ discolors the preoxidized substrate generated via the peroxidase-like activity of CuO₂@PDA. Moreover, selective sensing for CC and HQ with high sensitivity was achieved in real water samples. This approach can guide the design of nanozymes with multienzymatic activity and unveil their potential uses in environmental pollutant discrimination.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"44 3 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deep-Eutectic Solvent as a Solvent and Precursor for the Synthesis of a Carbon-Coated Na3V2(PO4)2F3–yOy Material","authors":"Gaël Minart, Runhe Fang, Christine Labrugère-Sarroste, François Weill, Sonia Buffière, Sophie Cassaignon, Laurence Croguennec, Jacob Olchowka","doi":"10.1021/acsami.4c18716","DOIUrl":"https://doi.org/10.1021/acsami.4c18716","url":null,"abstract":"Deep eutectic solvents (DES) are well-known as cost-effective and environmentally friendly “designer solvents” for controlling the size and morphology of nanomaterials. In this study, we leverage DES not only as a solvent for the topochemical synthesis of Na₃V₂(PO₄)₂F_3–<i>y</i>O_<i>y</i> (0 ≤ <i>y</i> ≤ 2) but also as a precursor for a uniform and thin carbon coating. After solvothermal synthesis in a green deep eutectic solvent composed of a mixture of choline chloride, citric acid, and water (3:1:3 molar ratio), XRD refinements and FTIR, XPS, and TEM analyses confirmed the obtention of a pure Na₃V₂(PO₄)₂F_3–<i>y</i>O_<i>y</i> (0 ≤ <i>y</i> ≤ 2) phase encapsulated in an organic layer derived from a residual deep eutectic solvent. Subsequent sintering at 600 °C under an argon atmosphere produced a homogeneous nitrogen-doped carbon coating without the need for additional carbon sources. Electrochemical tests in galvanostatic conditions demonstrated that this material exhibits excellent performance in terms of capacity retention and rate capabilities, with specific capacities exceeding 110 mAh/g at 2C versus Na metal and 68 mAh/g at 10C in full cells versus hard carbon.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"25 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chip-Based Optoacoustic Single-Cell Detection in Flow Using Point-Source Optimized Surface Acoustic Wave Transducers","authors":"Simon Göllner, Melanie Colditz, Yishu Huang, Hagen Schmidt, Andreas Winkler, Andre C. Stiel","doi":"10.1021/acsami.4c20182","DOIUrl":"https://doi.org/10.1021/acsami.4c20182","url":null,"abstract":"Sensitive measurement of the optoacoustic (OA, also photoacoustic) properties of cells in flow is highly desirable, as it provides information about the optical absorption properties of cellular compounds. Hence, optoacoustic spectral characteristics can deliver information about the cell state or disease parameters, but can also be used for high-throughput cell sorting by intrinsic properties without additional fluorescence labeling. The current implementation of optoacoustic measurements of cells in a microfluidic context typically relies on piezoelectric (ultrasound) transducers attached to the microfluidic chip, whereby the transducer records the ultrasound signal originating from absorbing species in cells when excited by laser pulses. The arrangement of the transducer outside of the microfluidic chip leads to the challenge of signal integration over a larger area and coupling interlayer effects resulting in attenuation and a reduction of sensitivity. Moreover, the placement of the bulky transducer outside of the chip prevents the exploitation of the full advantages of microfluidics. As a solution, we demonstrate the use of point-source optimized interdigital transducers (pIDTs) directly fabricated on the surface of the microfluidic chip for the detection of surface acoustic waves (SAW) from single cells in continuous flow. The SAW is excited by bulk acoustic waves originating from the optoacoustic effect of absorbing species inside the cells illuminated by laser light. The use of these highly focused pIDTs and on-chip lithographically fabricated hard-wall microchannels allows the detection of SAW with a spatial resolution on the order of the cell diameter directly on-chip, offering the possibility of miniaturization, parallelization, and cheap mass production.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"211 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Superoleophobic Hierarchical Honeycomb Hydrogels for Effective Heavy Metal Removal in Crude Oil Emulsion","authors":"Yifan Liu, Mei Shi, Shuai Fang, Qiongfang Zhang, Qingtong Wu, Nanxin Li, Dichu Lin","doi":"10.1021/acsami.4c21809","DOIUrl":"https://doi.org/10.1021/acsami.4c21809","url":null,"abstract":"Here, we designed a bioinspired hydrogel surface with underwater superoleophobicity for heavy metal adsorption, effectively addressing the challenge of adsorption site clogging caused by crude oil emulsions. Mimicking the reentrant structures of lotus leaf undersides, silica dioxide (SiO₂) nanoparticles were self-assembled on the hydrogel surface, forming a stable hydration layer that imparts unique superoleophobic properties in an aqueous environment. The poly(vinyl alcohol)-sodium alginate-SiO₂ capsule (PSSC) exhibited a hierarchical honeycomb pore structure with a nano screen mesh, achieving excellent adsorption capacities for typical cationic heavy metals (Pb²⁺, Cu²⁺, Cd²⁺, and Cr³⁺) in both aqueous solutions and crude oil emulsions. The optimal pH for heavy metal adsorption was determined to be between 4 and 5, while increasing temperature significantly inhibited the adsorption process. Maximum adsorption capacities of Pb²⁺, Cd²⁺, Cu²⁺, and Cr³⁺ reached 291.5 mg/g, 278.7 mg/g, 259.4 mg/g, and 171.4 mg/g in crude oil emulsions. Competitive adsorption was observed in multicomponent systems, with Cr³⁺ being adsorbed preferentially. The adsorption mechanisms were primarily governed by chemical adsorption, physical adsorption, and electrostatic attraction, with functional groups such as −COOH and −OH on the hydrogel surface playing a key role in metal ion binding. This study demonstrates the potential of PSSC as an efficient, cost-effective adsorbent for removing heavy metals from complex matrices, such as wastewater and crude oil emulsions, and highlights its applicability in various environmental remediation scenarios.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"23 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}