Dong Hee Han, Seung Yeon Kim, Hyun Woo Jeong, Younghwan Lee, Young Yong Kim, Woojin Jeon, Min Hyuk Park
{"title":"Temperature-Dependent {111}-Texture Transfer to Hf0.5Zr0.5O2 Films from {111}-Textured TiN Electrode and Its Impact on Ferroelectricity","authors":"Dong Hee Han, Seung Yeon Kim, Hyun Woo Jeong, Younghwan Lee, Young Yong Kim, Woojin Jeon, Min Hyuk Park","doi":"10.1021/acsami.4c17978","DOIUrl":"https://doi.org/10.1021/acsami.4c17978","url":null,"abstract":"The crystallographic texture of Hf<sub>0.5</sub>Zr<sub>0.5</sub>O<sub>2</sub> (HZO) thin films plays a crucial role in determining their ferroelectric properties, requiring a deeper understanding of the texture transfer from the substrate. This study investigated the influence of the deposition temperature on the crystallographic texture, residual stress, and ferroelectric properties of HZO thin films. Grazing-incidence wide-angle X-ray scattering analyses confirmed a pronounced increase in the {111} texture of the HZO films when the deposition temperature increased from 200 to 300 °C. The observed {111} texture was attributed to the influence of the thermodynamic stability on in situ nucleation and growth during atomic layer deposition at elevated temperatures, which led to preferential crystallization along the {111} direction. The improved {111}-texture of the HZO film was shown to correlate directly with a ∼25.0% increase in the remanent polarization (<i>P</i><sub>r</sub>) in positive-up-negative-down measurements and a ∼17.2% decrease in the <i>P</i><sub>r</sub> change during the wake-up effect, reinforcing the superior performance of the films produced at higher temperatures.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"102 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734299","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":"Combining CRISPR-Cas12a with Microsphere Array-Enhanced Fluorescence for Portable Pathogen Nucleic Acid Detection","authors":"Menglu Gao, Chen Yang, Wu Si, Xiaodan Xi, Liangjun Chen, Zhikun Zeng, Yuan Rong, Yi Yang, Fubing Wang, Chunhui Yuan","doi":"10.1021/acsami.5c00655","DOIUrl":"https://doi.org/10.1021/acsami.5c00655","url":null,"abstract":"The detection of food contamination in a swift and sensitive manner is essential for safeguarding public health. Clustered regularly interspaced short palindromic repeats (CRISPR)-based assays for nucleic acid detection are renowned for their high specificity and convenient, related studies have focused on refining the Cas protein and optimizing the CRISPR (cr)RNAs design within CRISPR-based assays for enhancing the sensitivity of nucleic acid detection. Our research offers innovative insights into enhancing the fluorescence signal output intensity from a physical standpoint, thereby presenting a practical and cost-effective strategy to lower the detection thresholds in CRISPR-based assays. By a layer of microsphere arrays was spread onto the bottom of the microfluidic chip to enhance the fluorescence signal of the sample via self-assembly of the microspheres. Recombinase polymerase amplification (RPA) was used to amplify target sequences, followed by crRNA binding to activate Cas enzyme, cleaving fluorescein amidite (FAM)-labeled reporters and emitting a fluorescent signal. The method successfully identified SARS-CoV-2 positive samples (10 clinical samples and 8 environmental contamination samples) and distinguished them from negative samples. Meanwhile, it successfully detected 4 food contamination <i>Shigella</i> samples and 5 clinical <i>Shigell</i>a samples. In this study, the developed method exhibited a detection limit (LoD) of 75 fM for SARS-CoV-2 (POCT with USB camera: 50 fM) and 100 fM for <i>Shigella</i> (POCT with USB camera: 75 fM). It also demonstrated promising sensitivity (100%) and specificity (100%) in a small-sample validation. Combined portable and automated detection was achieved using a smartphone to receive and process the fluorescent signals obtained from the samples. The detection platform developed in this study is not only applicable for the detection of pathogens in cold-chain food products, but also extends to pathogen detection in community hospitals and resource-limited areas, providing an efficient solution for rapid pathogen screening in different settings. Moreover, different nucleic acid samples can be detected by changing the RPA primer and CRISPR crRNA. This method provides a paradigm for studying enhanced fluorescence signaling and holds significant potential to advance the commercialization and practical use of CRISPR fluorescence sensors.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"20 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723867","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":"Enhancing the Carrier Transport in Dielectric Passivation Layers via the Introduction of Trap States toward Improved CH3NH3PbI3/Si Heterojunction Photodetectors","authors":"Pengyu Chen, Jianxiang Huang, Guipeng Li, Hongping Li, Huimin Zhang, Chenglin Zhang, Yuan Liu, Dawei Cao, Mingming Chen","doi":"10.1021/acsami.5c03138","DOIUrl":"https://doi.org/10.1021/acsami.5c03138","url":null,"abstract":"Dielectric thin layers have commonly been employed to passivate interfacial defects to improve the performance of heterojunction photodetectors (PDs), whereas their insulating nature severely hinders the out-of-plane carrier transport, thereby limiting the improvements in performance. Fortunately, such a problem can be well addressed by modulating the charge carriers’ transport process by introducing trap states. Herein, we reported the fabrication of much-improved CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>/Si heterojunction PDs achieved by employing a HfO<sub>2+<i>x</i></sub> thin film with high-density (OH)<sub>O</sub> (i.e., OH substitute for O lattice site) as the interfacial passivation layer. Theoretical studies suggested that (OH)<sub>O</sub> defects have a low formation energy and exhibit hole-trapping behaviors. Notably, the interfacial passivation effects of the HfO<sub>2+<i>x</i></sub> thin films are comparable to those of the HfO<sub>2</sub> thin films. In addition, the out-of-plane hole transport was enhanced in the HfO<sub>2+<i>x</i></sub> thin films benefiting from the efficient (OH)<sub>O</sub> trap-assisted transport of holes. Finally, the performance of HfO<sub>2+<i>x</i></sub>-passivated PDs was remarkably improved. It is believed that the results demonstrated in this work provide a promising strategy for the fabrication of efficient heterojunction PDs in the future.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"25 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723969","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}
Jian Mao, Yujie Yan, Qimei Wu, Miao Wang, Jimin Dai, Kunwei Niu, Lei Zheng, Cheng Jiang, Fan Jiang, Wenjuan Zhang, Kaishan Tao, Jingyao Dai
{"title":"Gold Nanoparticles Carrying Mannose-Binding Lectin and Inflammatory Cytokine Antibodies Improve Sepsis Survival by Modulating Immunity and Reducing Pathogens.","authors":"Jian Mao, Yujie Yan, Qimei Wu, Miao Wang, Jimin Dai, Kunwei Niu, Lei Zheng, Cheng Jiang, Fan Jiang, Wenjuan Zhang, Kaishan Tao, Jingyao Dai","doi":"10.1021/acsami.4c21055","DOIUrl":"https://doi.org/10.1021/acsami.4c21055","url":null,"abstract":"<p><p>Sepsis is a systemic inflammatory response syndrome caused by infection, and early management of both the infection and the excessive inflammatory response is key to its treatment. In this study, we designed a nanoformulation, termed AuNPs-Mixed, to control bacterial infection and modulate the excessive inflammatory response. AuNPs-Mixed was prepared by equimolarly combining four nanoparticle formulations, each consisting of gold nanoparticles (AuNPs) conjugated separately with mannose-binding lectin (MBL) and three different antibodies targeting pro-inflammatory cytokines: interleukin 6 (IL-6), interleukin 1β (IL-1β), and tumor necrosis factor alpha (TNF-α). MBL facilitates the targeted recognition of pathogenic bacteria, while the cytokine-specific antibodies aim to reduce the levels of inflammatory cytokines. The formulation was administered to septic mice for 72 h. The results showed that, compared to the groups treated with AuNPs alone, AuNPs carrying MBL (AuNPs-MBL), and the blank control group, mice receiving the AuNPs-Mixed treatment exhibited significantly lower bacterial loads in the blood, liver, spleen, and kidneys (<i>p</i> < 0.05), reduced levels of inflammatory cytokines, less organ damage, and markedly higher survival rates (<i>p</i> < 0.05). Fluorescence confocal microscopy confirmed that the AuNPs-MBL preparation could bind to <i>Escherichia coli</i>, the primary infectious agent in the sepsis model, facilitating subsequent phagocytosis by macrophages. In the acute toxicity study, no significant differences were observed in body weight, complete blood cell counts, or histopathological analysis of major organs in mice over 7 days (<i>p</i> > 0.05). In conclusion, this study demonstrates that the AuNPs-Mixed formulation effectively reduces bacterial loads in blood and organs, lowers inflammatory cytokine levels, mitigates organ damage, and significantly improves survival rates while showing no evident acute toxicity in mice.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":" ","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143727049","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":"Investigating the Interface of Li{N(SO2F)2}(NCCH2CH2CN)2 Molecular Crystal Electrolytes for 5 V Class Solid-State Batteries","authors":"Ruijie Zheng, Shigeru Kobayashi, Mana Ogawa, Hiroto Katsuragawa, Yuki Watanabe, Jun Deng, Ryo Nakayama, Kazunori Nishio, Ryota Shimizu, Yoshitaka Tateyama, Makoto Moriya, Taro Hitosugi","doi":"10.1021/acsami.4c22076","DOIUrl":"https://doi.org/10.1021/acsami.4c22076","url":null,"abstract":"Molecular crystals composed of lithium bis(fluorosulfonyl)amide (LiFSA) and succinonitrile (SN), hereafter referred to as Li(FSA)(SN)<sub>2</sub>, are a promising solid electrolyte. To realize a wider application of molecular crystal solid electrolytes, it is critical to investigate the interface of Li(FSA)(SN)<sub>2</sub> and 5 V-class positive electrodes. Here, we studied the interface of Li(FSA)(SN)<sub>2</sub> with 5 V-class LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> (LNMO) positive electrodes utilizing modeled thin-film batteries. The Li(FSA)(SN)<sub>2</sub>|LNMO interfaces degrade, leading to an increase in interface resistance and capacity loss. By inserting an amorphous Li<sub>3</sub>PO<sub>4</sub> layer into the Li(FSA)(SN)<sub>2</sub>|LNMO interface, the low interface resistance remains, and no interphase layer is observed. The discharge capacity remains at 96% after 100 charge and discharge cycles. This study demonstrated the feasibility of operating Li(FSA)(SN)<sub>2</sub> in a 5 V-class solid-state battery revealing the potential of molecular crystal solid electrolytes in high-energy-density batteries.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"36 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734302","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":"Maze Effect or Antimaze Effect: The Double Effect of Modified 2D Fillers Ti3C2Tx on the Properties of Waterborne Polyurethane Coatings","authors":"Shuo Tang, Tianguan Wang, Peng Xu, Wenfeng Ge, Junlin Chen, Honglei Guo, Zhiyuan Feng, Bing Lei, Ping Zhang, Guozhe Meng","doi":"10.1021/acsami.4c23009","DOIUrl":"https://doi.org/10.1021/acsami.4c23009","url":null,"abstract":"With a high aspect ratio and a good ion barrier property, two-dimensional fillers can prevent the invasion of corrosive media by a “maze effect” when showing good interface compatibility with polymer. However, this blocking effect also affects the release of volatile substances during the coating curing process, leading to an ““antimaze effect” and an increase in internal coating defects. In this work, 2-D filler Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> was noncovalently modified with corrosion inhibitor 8-HQ and dopamine in one step to obtain a filler owing good interfacial compatibility with polyurethane. Its “antimaze effect” in waterborne polyurethane coating was studied. The results of electrochemical impedance spectroscopy and the water absorption test showed that the coating exhibited the best performance when the dosage of modified Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> was 0.25 wt %, by which the “maze effect” and “antimaze effect” reach balance. The low-frequency impedance modulus was 14 times higher than that of the control sample, and the saturated water absorption was reduced by 56.15%. The enhancement mechanism of the coating’s anticorrosion property by modified Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> was analyzed. Results showed that the addition of modified fillers not only improves the “maze effect” but also reduces the internal defects of the coating. The corrosion inhibitor used for modification enhanced the adhesion. It also played a corrosion inhibition role in subsequent long-term service or when the coating was damaged. This study provides a new reference for the application of 2D fillers in organic coatings.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"36 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734314","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}
Sarah Glass, Harikishan Kannan, Johanna Bangala, Yu Chen, Jordin Metz, Riaz Mowzoon-Mogharrabi, Guanhui Gao, Ashok Kumar Meiyazhagan, Michael S. Wong, Pulickel M. Ajayan, Thomas P. Senftle, Pedro J. J. Alvarez
{"title":"Iron Doping of hBN Enhances the Photocatalytic Oxidative Defluorination of Perfluorooctanoic Acid","authors":"Sarah Glass, Harikishan Kannan, Johanna Bangala, Yu Chen, Jordin Metz, Riaz Mowzoon-Mogharrabi, Guanhui Gao, Ashok Kumar Meiyazhagan, Michael S. Wong, Pulickel M. Ajayan, Thomas P. Senftle, Pedro J. J. Alvarez","doi":"10.1021/acsami.5c01963","DOIUrl":"https://doi.org/10.1021/acsami.5c01963","url":null,"abstract":"There is a growing need to effectively eliminate perfluorooctanoic acid (PFOA) from contaminated water, which requires extensive defluorination. Photocatalysis offers potential for PFOA degradation under ambient conditions without the need for treatment chemicals. However, photocatalytic treatment generally results in limited defluorination and, thus, incomplete elimination of potential toxicity and liability. This underscores the need to advance mechanistic understanding of the factors limiting PFOA oxidative defluorination. Here, we tested the hypothesis that direct electron transfer from PFOA to transition metals enhances photocatalytic defluorination. We developed a novel, facile approach to simultaneously functionalize and dope hexagonal boron nitride (hBN) (which is known to effectively catalyze photocatalytic PFOA oxidation) with Fe(III), using deep-eutectic solvents (DES). Addition of Fe(III) to synthesize Fe-hBN created new active sites for PFOA oxidation and doubled the defluorination extent (>40% fluoride release from initial 50 mg L<sup>–1</sup> PFOA) compared to undoped hBN in 4 h reactions under 254 nm irradiation (64.4 W m<sup>–2</sup>). The mechanism of defluorination was elucidated through scavenger experiments that show the importance of photocatalytically generated electron holes for initiating PFOA degradation. Experiments also suggest that Fe(III) played a key role in PFOA removal, contributing to the improved extent of defluorination over undoped hBN. Density functional theory indicates that Fe(III) sites enable electrostatic adsorption of PFOA to the catalyst surface, enhance charge transfer, and promote hole localization to improve charge carrier separation, which is essential for oxidative defluorination of PFOA. This mechanistic insight informs catalytic material design to enhance oxidative defluorination processes.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"14 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734322","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}
Stasiu T Chyczewski, Hanwool Lee, Shuchen Li, Marwan Eladl, Jun-Fei Zheng, Axel Hoffmann, Wenjuan Zhu
{"title":"Strong Damping-Like Torques in Wafer-Scale MoTe<sub><b>2</b></sub> Grown by MOCVD.","authors":"Stasiu T Chyczewski, Hanwool Lee, Shuchen Li, Marwan Eladl, Jun-Fei Zheng, Axel Hoffmann, Wenjuan Zhu","doi":"10.1021/acsami.4c21247","DOIUrl":"https://doi.org/10.1021/acsami.4c21247","url":null,"abstract":"<p><p>The scalable synthesis of materials with strong spin orbit coupling (SOC) is crucial for the development of spintronic and magnetic devices. Here, wafer-scale growth of 1T' MoTe<sub>2</sub> using metal-organic chemical vapor deposition (MOCVD) at low temperatures (400 °C) is demonstrated. The synthesized films exhibit uniform coverage across the entire substrate, as well as accurate stoichiometry. This low-temperature synthesis is compatible with silicon back-end-of-line (BEOL) processes, enabling in-memory and in-sensor computing for data-intensive applications. Furthermore, it was found that the grown 1T' MoTe<sub>2</sub> exhibits strong spin-orbit coupling, as revealed by the spin torque ferromagnetic resonance (ST-FMR) measurements conducted on a 1T' MoTe<sub>2</sub>/permalloy bilayer. These measurements indicate significant damping-like torques in the wafer-scale 1T' MoTe<sub>2</sub> film and indicate high spin-charge conversion efficiency. The BEOL-compatible process and potent spin orbit torque demonstrate the promise of MOCVD-grown MoTe<sub>2</sub> in advanced device applications.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":" ","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143727080","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}
Tao Long, Da Song, Yuchao Zhou, Xiang Yu, Xuemei Wang, Chengyang Li, Haitao Chen, Guanghuan Li, Fang He
{"title":"Modulating Activity of Lattice Oxygen of ABO3 Perovskite Oxides in Redox Reactions: A Review","authors":"Tao Long, Da Song, Yuchao Zhou, Xiang Yu, Xuemei Wang, Chengyang Li, Haitao Chen, Guanghuan Li, Fang He","doi":"10.1021/acsami.5c03046","DOIUrl":"https://doi.org/10.1021/acsami.5c03046","url":null,"abstract":"Perovskites, owing to their unique structure, tunable chemical composition, and versatile physicochemical properties, have garnered extensive applications, particularly in redox reactions where the lattice oxygen and/or oxygen vacancies within perovskite are identified as active sites. The modulation of lattice oxygen activity in perovskites is crucial for enhancing the performance of perovskite-type oxides in redox reactions. This review delineates the key factors affecting lattice oxygen activity, including lattice distortions, crystal defects, surface and interface effects, and the migration rate of oxygen ions, and elucidates how these factors synergistically influence the activity of lattice oxygen. A range of strategic approaches, including ionic doping, surface modification, and metal exsolution, are proposed to effectively regulate the behavior and catalytic properties of lattice oxygen. In this investigation, we consolidate a series of analytical and testing methodologies, such as XRD, XPS, ECR, EIS, and TGA, among others, with a focus on lattice oxygen activity, to reveal the fundamental relationship between lattice oxygen activity and the structural and functional attributes of perovskite oxygen carriers. This comprehensive review offers profound insights and guidance for the strategic design and performance optimization of perovskite catalysts or oxygen carriers.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"31 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734323","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":"Electrocapillary Plating-An Innovative Method of Creating Nanostructures Enhances the Working Performance of Implantable Bioelectrodes","authors":"Mengyuan Hu, Yichao Li, Yulin Lin, Yuliang Huang, Shengjie Liang, Xiaopeng Fu, Feng Peng, Longhai Qiu, Donghui Wang","doi":"10.1021/acsami.5c01894","DOIUrl":"https://doi.org/10.1021/acsami.5c01894","url":null,"abstract":"The current optimization of implantable electrodes focuses on reducing impedance and improving anti-inflammatory properties. The fabrication of nanostructures on electrode surfaces is a promising strategy for reducing impedance while also minimizing interference from the array of immune cells that cause foreign body reactions. Electrochemical deposition is a common method for creating nanostructures. However, the generation of impurities that are difficult to remove during the preparation process is unavoidable. Herein, we develop a simple, economical, and stable method, namely, electrocapillary plating, to create nanostructures on the electrode surface based on the electrocapillary phenomenon and electrochemical deposition without introducing impurities. This technology enables the fabrication of various nanostructures at different current densities and pH values. The process and mechanism of structure formation are investigated through simulations, which show that the conductive droplets undergo droplet climbing and nanostructure deposition due to the electrocapillary phenomenon and electrochemical deposition. Compared to traditional plating and control groups, the Electrocapillary plating-modified electrode demonstrates reduced impedance, lower protein adhesion, and greater tolerance to changes in the physicochemical environment. The in vitro and in vivo biological experiments verify that the Electrocapillary plating modified electrode shows the properties of bactericidal, pro-tissue repair and inhibition of the inflammatory response. These results highlight the potential of Electrocapillary plating as a novel strategy to optimize electrode performance in the field of implantable bioelectrodes. In addition, Electrocapillary plating, as an innovative surface modification technology, can create nanostructures of different metals and even further modulate the surface morphology by means such as hydrogen reduction. It may have even wider applications in various fields such as electronics, medicine, energy, environment, and materials science.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"58 11 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734320","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}