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Metformin encapsulating immunoliposomes conjugated with anti-TROP 2 antibody fragments for the active targeting of triple negative breast cancer
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-24 DOI: 10.1039/d4nr03224a
Daiva Vozgirdaite, Emilie Allard-Vannier, Florence Velge-Roussel, Emmanuel Douez, Louis Jolivet, Fanny Boursin, Igor Chourpa, Nicolas Aubrey, Katel Hervé Aubert
{"title":"Metformin encapsulating immunoliposomes conjugated with anti-TROP 2 antibody fragments for the active targeting of triple negative breast cancer","authors":"Daiva Vozgirdaite, Emilie Allard-Vannier, Florence Velge-Roussel, Emmanuel Douez, Louis Jolivet, Fanny Boursin, Igor Chourpa, Nicolas Aubrey, Katel Hervé Aubert","doi":"10.1039/d4nr03224a","DOIUrl":"https://doi.org/10.1039/d4nr03224a","url":null,"abstract":"Trophoblast Cell-Surface Antigen 2 (TROP 2) has re-emerged as a promising biomarker in Triple Negative Breast Cancer (TNBC), with high overexpression in many TNBC cases. Despite its potential and the approval of an antibody-drug-conjugate for TNBC treatment, TROP 2 targeted delivery systems are currently under-explored. Therefore, this study aimed to exploit the potential of TROP 2 targeting by encapsulating metformin (Met), an antidiabetic drug associated with tumor growth inhibitory properties, inside liposomes decorated with TROP 2 targeting single-chain variable fragments (scFvs). The optimization of scFv grafting resulted in Met-Immunoliposomes with an average diameter below 200 nm, low polydispersity index (~ 0.1), negative surface charge (less than -10 mV), high Met drug loading (greater than 150 mg/g), and high affinity towards TROP 2 binding. Met-Immunoliposomes were reproducible, the scFv conjugation was stable in the presence of serum during five days, and the cellular uptake was increased 4-fold on two-dimensional and 9-fold on three-dimensional TNBC models due to the high affinity towards TROP 2 binding. Finally, the Met therapeutic effect to suppress cancer cell growth and proliferation was superior with anti-TROP 2 scFv-grafted Met-Immunoliposomes, which completely stopped the spheroid growth and inhibited the expression of adenosine triphosphate. This study is among the first reports to explore the combination of nanoparticle-based drug delivery system to target TROP 2 protein in TNBC, and to the best of our knowledge this is the first report to specifically combine the use of scFvs in TROP 2 targeting to deliver therapeutics for TNBC treatment.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"64 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142879840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Valence-engineering modulation of MoS2 clusters for enhancing biocatalytic activity
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-24 DOI: 10.1039/d4nr04527k
Xiaoyan Xue, Meili Guo, Hao Zhang, Qingshan Liu, Xuyan Li, Xin Sun, Xiaoyu Mu, Xiao-Dong Zhang
{"title":"Valence-engineering modulation of MoS2 clusters for enhancing biocatalytic activity","authors":"Xiaoyan Xue, Meili Guo, Hao Zhang, Qingshan Liu, Xuyan Li, Xin Sun, Xiaoyu Mu, Xiao-Dong Zhang","doi":"10.1039/d4nr04527k","DOIUrl":"https://doi.org/10.1039/d4nr04527k","url":null,"abstract":"Earth-abundant MoS<small><sub>2</sub></small> with the advantages of a stable structure, tunable bandgap, and easy shear has great potential for applications in the fields of catalysis, biomedicine, and so on. However, the biocatalytic activity of MoS<small><sub>2</sub></small> remains little investigated and is insufficient for biomedical applications. In this work, we develop ultra-small and water-soluble MoS<small><sub>2</sub></small> clusters with superior antioxidant activity and enzyme-like activity <em>via</em> valence-engineering modulation with Ce doping. Compared with pure, Re-, Tl-, and Nd-MoS<small><sub>2</sub></small> clusters, Ce-MoS<small><sub>2</sub></small> clusters exhibit about 1.7-fold enhanced antioxidant activity. Moreover, superoxide dismutase (SOD)-like activity of Ce-MoS<small><sub>2</sub></small> clusters is about 30-fold higher than that of MoS<small><sub>2</sub></small> clusters. In addition, the Ce-MoS<small><sub>2</sub></small> clusters are evidenced to possess ultra-high clearance performance for reactive oxygen species and reactive nitrogen radicals (RONS), especially ˙OH and O<small><sub>2</sub></small>˙<small><sup>−</sup></small>. The comprehensive analyses of valence evolution and the energy level structure indicate that the enhanced biocatalytic activity is attributed to the synergistic effect of valence engineering of Mo<small><sup>4+</sup></small>/Mo<small><sup>6+</sup></small> and energy-level engineering in MoS<small><sub>2</sub></small> clusters <em>via</em> Ce doping. This work provides a universal approach to improve the biocatalytic activity of MoS<small><sub>2</sub></small> clusters <em>via</em> valence engineering modulation, which exhibits great potential in the field of biomedical application, especially inflammatory diseases.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"20 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142879843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polarisation-dependent Raman enhancement in hexagonal boron nitride membranes
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-24 DOI: 10.1039/d4nr03091e
Jakub Rogoża, Johannes Binder, Kirill V. Voronin, Iris Niehues, Katarzyna Ludwiczak, Aleksandra K. Dąbrowska, Mateusz Tokarczyk, Rafał Bożek, Alexey Y. Nikitin, Rainer Hillenbrand, Roman Stępniewski, Andrzej Wysmołek
{"title":"Polarisation-dependent Raman enhancement in hexagonal boron nitride membranes","authors":"Jakub Rogoża, Johannes Binder, Kirill V. Voronin, Iris Niehues, Katarzyna Ludwiczak, Aleksandra K. Dąbrowska, Mateusz Tokarczyk, Rafał Bożek, Alexey Y. Nikitin, Rainer Hillenbrand, Roman Stępniewski, Andrzej Wysmołek","doi":"10.1039/d4nr03091e","DOIUrl":"https://doi.org/10.1039/d4nr03091e","url":null,"abstract":"Raman spectroscopy is a powerful analytical method widely used in many fields of science and applications. However, one of the inherent issues of this method is a low signal-to-noise ratio for ultrathin and two-dimensional (2D) materials. To overcome this problem, techniques like surface-enhanced Raman spectroscopy (SERS) that rely on nanometer scale metallic particles are commonly employed. Here, we demonstrate a different approach that is based on a microcavity structure consisting of a hexagonal boron nitride (h-BN) membrane spanning over an air-filled trench in germanium. In this structure, the h-BN membrane is an integral part of the cavity and, at the same time, shows an about 10-fold, polarisation-dependent h-BN Raman signal enhancement. With h-BN being transparent, flat, and chemically robust, it provides an excellent interface between the cavity and adjacent materials. We show that the Raman enhancement is also present for graphene layers transferred on top of the h-BN membrane, which proves that our approach can be extended to van der Waals heterostructures. The observed polarisation and position-dependent enhancements are in very good agreement with numerical simulations of the electric field intensity of the cavity. These results, together with the presented facile h-BN membrane fabrication process, which does not require any lithographic methods, open up new possibilities for enhancing Raman signals of 2D crystals without the need for metal particles.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"85 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142879836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NIR-II upconversion nanomaterials for biomedical applications
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-24 DOI: 10.1039/d4nr04445b
Ranran Luo, Chenxi Zhang, Zening Zhang, Pengchen Ren, Zhongsheng Xu, Yun Liu
{"title":"NIR-II upconversion nanomaterials for biomedical applications","authors":"Ranran Luo, Chenxi Zhang, Zening Zhang, Pengchen Ren, Zhongsheng Xu, Yun Liu","doi":"10.1039/d4nr04445b","DOIUrl":"https://doi.org/10.1039/d4nr04445b","url":null,"abstract":"As a nonlinear optical phenomenon, upconversion (UC) occurs when two or more low-energy excitation photons are sequentially absorbed and emitted. Upconversion nanomaterials exhibit superior photostability, non-invasiveness, a unique near-infrared anti-Stokes shift, and enhanced tissue penetration capability. However, general upconversion nanomaterials typically utilize visible light (400–700 nm) for excitation, leading to limited tissue penetration, background signal interference, limited excitation efficiency and imaging quality issues due to tissue absorption and scattering. The increasing use of upconversion nanomaterials in the near-infrared one-region (NIR-I) window (700–900 nm) offers benefits such as enhanced penetration into biological tissues, relatively improved imaging resolution, and lower spontaneous luminescence, although these materials are still susceptible to background signals, limiting their effectiveness in high signal-to-noise ratio imaging. This distinctive wavelength conversion endows upconversion nanomaterials in the NIR-II region with extraordinary potential for diverse applications. Biomedical research has primarily focused on biomedical imaging for disease diagnosis and treatment, as well as biomarker detection. Nonetheless, studies specifically targeting the NIR-II window remain limited. This paper summarizes the latest research progress on upconversion nanomaterials in the NIR-II region. It begins by introducing the preparation methods for these materials in the NIR-II, followed by their applications in imaging and biological contexts. Lastly, it discusses the primary challenges and future prospects of upconversion materials in NIR-II, aiming to promote their development.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"58 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142879838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electronic confinement induced quantum dot behavior in magic-angle twisted bilayer graphene
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-23 DOI: 10.1039/d4nr02824d
Bhaskar Ghawri, Pablo Bastante, Kenji Watanabe, Takashi Taniguchi, Michel Calame, Mickael Perrin, Jian Zhang
{"title":"Electronic confinement induced quantum dot behavior in magic-angle twisted bilayer graphene","authors":"Bhaskar Ghawri, Pablo Bastante, Kenji Watanabe, Takashi Taniguchi, Michel Calame, Mickael Perrin, Jian Zhang","doi":"10.1039/d4nr02824d","DOIUrl":"https://doi.org/10.1039/d4nr02824d","url":null,"abstract":"Magic-angle twisted bilayer graphene (TBLG) has emerged as a versatile platform to explore correlated electron phases driven primarily by low-energy flat bands in moiré superlattices. While techniques for controlling the twist angle between graphene layers have spurred rapid experimental progress, understanding the effects of doping inhomogeneity on electronic transport in correlated electron systems remains challenging. In this work, we investigate the interplay of confinement and doping inhomogeneity on the electrical transport properties of TBLG by leveraging device dimensions and twist angle. We show that reducing device dimensions can magnify disorder potentials caused by doping inhomogeneity, resulting in pronounced carrier confinement. This phenomenon is evident in charge transport measurements, where the Coulomb blockade effect is observed. Temperature-dependent measurements reveal a large variation in the activation gap across the device. These findings highlight the critical role of doping inhomogeneity in TBLG and its significant impact on the transport properties of the system.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"24 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sulfur functionalized diamondoid phosphines enable building nanocomposites interfacing sp3-carbon and gold nanolayer
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-23 DOI: 10.1039/d4nr03511a
Moad Bouzid, Jean-Cyrille Hierso, Clève D. Mboyi, Didier Poinsot, Bruno Domenichini, Peter Richard Schreiner, Lukas Ochmann
{"title":"Sulfur functionalized diamondoid phosphines enable building nanocomposites interfacing sp3-carbon and gold nanolayer","authors":"Moad Bouzid, Jean-Cyrille Hierso, Clève D. Mboyi, Didier Poinsot, Bruno Domenichini, Peter Richard Schreiner, Lukas Ochmann","doi":"10.1039/d4nr03511a","DOIUrl":"https://doi.org/10.1039/d4nr03511a","url":null,"abstract":"Interfacing metal frameworks with carbon-based materials is attractive for the bottom-up construction of nanocomposite functional materials. The stepwise layering of difunctionalized diamantanes and gold metal from physical and chemical vapor deposition for the preparation of nanocomposites inverts the common preparation of Metal-Organic Frameworks (MOFs) and self-assemblies –where the metal is introduced first–, and as such delivers metal surfaces with modified properties from the sp3-carbon core. However, appropriate diamondoid candidates for such approach are rare. By the mild chemical vapor deposition of the metal-organic complex MeAuPMe3, gold coating is achieved on a diamantane S=P(V) sulfide primary phosphine diamantanol 2. This later generates sulfides and polysulfides surface rearrangement and provide a suitable substrate for metal-organic nanocomposite formation from a fully-dry vapor process, with the advantage, in contrast to the P(III) primary phosphine phosphinodiamantanol 1, of being resistant to uncontrolled oxydation at phosphorus during the physical vapor deposition (PVD) and chemical vapor deposition (CVD) processing.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"5 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142879841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unraveling the Potential of Hybrid Borocarbonitride Biphenylene 2D Network for Thermoelectric Applications: A First Principles Study
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-23 DOI: 10.1039/d4nr02754j
Ajay Kumar, Parbati Senapati, Prakash Parida
{"title":"Unraveling the Potential of Hybrid Borocarbonitride Biphenylene 2D Network for Thermoelectric Applications: A First Principles Study","authors":"Ajay Kumar, Parbati Senapati, Prakash Parida","doi":"10.1039/d4nr02754j","DOIUrl":"https://doi.org/10.1039/d4nr02754j","url":null,"abstract":"In this study, we investigate a novel hybrid borocarbonitrides (bpn-BCN) 2D material inspired by recent advances in carbon biphenylene synthesis, using first-principles calculations and semi-classical Boltzmann transport theory. Our analysis confirms the structural stability of bpn-BCN through formation energy, elastic coefficients, phonon dispersion, and molecular dynamics simulations at 300K and 800K. The material exhibits an indirect band gap of 0.19 eV (PBE) between the X and Y points and a direct band gap of 0.58 eV (HSE) at the X point. Thermoelectric properties reveal a high Seebeck coefficient, peaking at 700 VK^(-1) for n-type carriers at 200K along the x-axis, while n-type has a maximum of 588 VK^(-1). The electrical conductivity is 2.2 ×〖10〗^7 〖Ω^(-1) m〗^(-1) for hole carriers, surpassing that of conventional 2D materials. The consequences of the high Seebeck coefficient and conductivity reflect a high-power factor with a peak value of 〖178×10〗^(-3) Wm^(-1) K^(-2) at 1000K for p-type carriers along the y-axis whereas, for n-type 〖91×10〗^(-3) Wm^(-1) K^(-2). Moreover, the highest observed ZT values were 0.78 (0.72) along the x (y) direction at 750 K for p-type and 0.57 (0.53) at 750 K along the x (y) axis for n-type. Our findings suggest that the bpn-BCN 2D network holds significant potential for thermoelectric applications due to its exceptional performance.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"92 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances and Applications of Dynamic Surface-Enhanced Raman Spectroscopy (SERS) for Single Molecule Studies
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-23 DOI: 10.1039/d4nr04239e
YANQIU ZOU, huaizhou jin, Qifei Ma, Zhenrong Zheng, Shukun Weng, karol kolataj, Guillermo Acuna, Ilko Bald, Denis Garoli
{"title":"Advances and Applications of Dynamic Surface-Enhanced Raman Spectroscopy (SERS) for Single Molecule Studies","authors":"YANQIU ZOU, huaizhou jin, Qifei Ma, Zhenrong Zheng, Shukun Weng, karol kolataj, Guillermo Acuna, Ilko Bald, Denis Garoli","doi":"10.1039/d4nr04239e","DOIUrl":"https://doi.org/10.1039/d4nr04239e","url":null,"abstract":"Dynamic surface-enhanced Raman spectroscopy (SERS) is nowadays one of the most interesting applications of SERS, in particular for single molecule studies. In fact, it enables the study of real-time processes at the molecular level. This review summarizes the latest developments in dynamic SERS techniques and their applications, focusing on new instrumentation, data analysis methods, temporal resolution and sensitivity improvements, and novel substrates. We highlight the progress and applications of single-molecule dynamic SERS in monitoring chemical reactions, catalysis, biomolecular interactions, conformational dynamics, and real-time sensing and detection. We aim to provide a comprehensive review on its advancements, applications as well as its current challenges and development frontiers.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"32 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Decoupling Many Body Interactions in CeO2(111) Oxygen Vacancy Structure with Statistical Learning and Cluster Expansion
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-23 DOI: 10.1039/d4nr04591b
Yujing Zhang, Zhongkang Han, Beien Zhu, Xiaojuan Hu, Maria Troppenz, Santiago Rigamonti, Hui Li, Claudia Draxl, Veronica Ganduglia-Pirovano, Yi Gao
{"title":"Decoupling Many Body Interactions in CeO2(111) Oxygen Vacancy Structure with Statistical Learning and Cluster Expansion","authors":"Yujing Zhang, Zhongkang Han, Beien Zhu, Xiaojuan Hu, Maria Troppenz, Santiago Rigamonti, Hui Li, Claudia Draxl, Veronica Ganduglia-Pirovano, Yi Gao","doi":"10.1039/d4nr04591b","DOIUrl":"https://doi.org/10.1039/d4nr04591b","url":null,"abstract":"Oxygen vacancies (VO’s) are of paramount importance in influencing the properties and applications of ceria (CeO2). Yet, comprehending the distribution and nature of the VO’s poses a significant challenge due to the vast number of electronic configurations and intricate many-body interactions among VO’s and polarons (Ce3+ ions). In this study, we established a cluster expansion model based on first-principles calculations and statistical learning to decouple the interactions among the Ce3+ ions and VO’s, thereby circumventing the limitations associated with sampling electronic configurations. By separating these interactions, we identified specific electronic configurations characterized by the most favorable VO-Ce3+ attractions and the least Ce3+-Ce3+/VO-VO repulsions, which are crucial in determining the stability of vacancy structures. Through more than 108 Metropolis Monte Carlo samplings of VO’s and Ce3+ ions in the near-surface of CeO2(111), we explored potential configurations within an 8×8 supercell. Our findings revealed that oxygen vacancies tend to aggregate and are abundant in the third oxygen layer with the elevated VO concentration, primarily due to extensive geometric relaxationan aspect previously overlooked. This work introduces a novel theoretical framework for unraveling the complex vacancy structures in metal oxides, with potential applications in redox and catalytic chemistry.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"20 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multifunctional Iron-Cobalt Heterostructure (FeCoHS) Electrocatalyst: Accelerating Sustainable Hydrogen Generation through Efficient Water Electrolysis and Urea Oxidation
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2024-12-23 DOI: 10.1039/d4nr04382k
Arunagiri Gayathri, Venkatachalam Ashok, Jayaraman Jayabharathi, D. Thiruvengadam, Venugopal Thanikachalam
{"title":"Multifunctional Iron-Cobalt Heterostructure (FeCoHS) Electrocatalyst: Accelerating Sustainable Hydrogen Generation through Efficient Water Electrolysis and Urea Oxidation","authors":"Arunagiri Gayathri, Venkatachalam Ashok, Jayaraman Jayabharathi, D. Thiruvengadam, Venugopal Thanikachalam","doi":"10.1039/d4nr04382k","DOIUrl":"https://doi.org/10.1039/d4nr04382k","url":null,"abstract":"The urgent need to address escalating environmental pollution and energy management challenges has underscored the importance of developing efficient, cost-effective, and multifunctional electrocatalysts. To address this, we developed an eco-friendly, cost-effective, and multifunctional electrocatalyst using a solvothermal synthesis approach. Due to the merits of the ideal synthesis FeCoHS@NF electrocatalyst exhibits multifunctional activity like OER, HER, OWS, UOR, OUS, and overall alkaline seawater splitting, with a required potential of 1.48, 0.130, 1.59, 1.23, 1.40, and 1.54 V @ 10 mA/cm2, respectively. Moreover, the electrolyser only required 1.40 V at 10 mA/cm2 for energy-saving urea-assisted hydrogen production, which was 190 mV lower than the alkaline water electrolyser. The FeCoHS@NF electrolyzer-combined alkaline sewage and seawater purification setup led to the industrial-environmental revolution by producing pure green hydrogen and water. The ultrastability of FeCoHS@NF electrocatalyst for industrial application was confirmed by using chronopotentiometry at 10 and 100 mA/cm2 over 110 h for OER, HER, UOR, and overall water splitting. Producing hydrogen using the FeCoHS@NF electrocatalyst in alkaline sewage water and seawater offers multiple benefits: it generates renewable hydrogen energy, purifies wastewater, reduces environmental pollutants, and lowers both the cost and electricity consumption of the electrolyser system.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"2677 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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