IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-30 DOI: 10.1039/d5nr01463h

Bo Li, Lipan Luo, Yujia Liu, Xiaohan Zhou, Yuyu Zhang, Lishuai Song, Nan Liu, Qing Tang, Zequan Li

{"title":"Loading Pt clusters is more conductive for photocatalytic hydrogen evolution compared to single atoms and nanoparticles","authors":"Bo Li, Lipan Luo, Yujia Liu, Xiaohan Zhou, Yuyu Zhang, Lishuai Song, Nan Liu, Qing Tang, Zequan Li","doi":"10.1039/d5nr01463h","DOIUrl":"https://doi.org/10.1039/d5nr01463h","url":null,"abstract":"Pt/TiO2 photocatalysts were synthesized using incipient wetness impregnation followed by oxidative and/or reductive thermal treatments. The loading dimensions of Pt elements on the TiO2 surface (PtP, PtSA, and PtC) were controlled by varying the impregnated solution. Experimental results demonstrate that PtC with intermediate size exhibits the highest photolysis rate under 300W xenon lamp irradiation, achieving a hydrogen yield of 11.42 mmol g^-1 h^-1 and an apparent quantum yield of 40.65%. Similarly, Ru/TiO2 and Ir/TiO2 photocatalysts prepared under the same conditions exhibited the same pattern. Photoelectrochemical tests reveal that PtC/TiO2 has the narrowest band gap, the highest interfacial charge transfer capacity, and the greatest carrier separation efficiency. DFT calculations indicate that PtC/TiO2 has the most suitable d-band center, resulting in a close-to-zero ΔGH* value of 0.05 eV. This optimal value significantly balances the adsorption and desorption of hydrogen intermediates (H*) during the photocatalytic hydrogen evolution (PHE) reaction. This study provides new insights into the preparation of precious metal-loaded photocatalysts.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"62 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177106","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

A Multilayer Template Stripping Transfer Printing Method for Engineered Stretchable Electronics 一种用于工程可拉伸电子元件的多层模板剥离转移印刷方法

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-30 DOI: 10.1039/d5nr01652e

Léo Sifringer, Daniel Laguna, Michel Sommer, Janos Vörös

引用次数: 0

ATP-responsive nanoparticles for improved chemodynamic therapy and dual starvation therapy atp反应纳米颗粒用于改善化学动力学治疗和双重饥饿治疗

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-30 DOI: 10.1039/d5nr02053k

Xiao-Fan Xu, Jun-Tao Chen, Qian Song, Zhi-Qing Wang, Jia-Qin Long, Guo-Jiang Mao, Yongfei Li, Liufang Hu, Juan Ouyang, Chun-Yan Li

{"title":"ATP-responsive nanoparticles for improved chemodynamic therapy and dual starvation therapy","authors":"Xiao-Fan Xu, Jun-Tao Chen, Qian Song, Zhi-Qing Wang, Jia-Qin Long, Guo-Jiang Mao, Yongfei Li, Liufang Hu, Juan Ouyang, Chun-Yan Li","doi":"10.1039/d5nr02053k","DOIUrl":"https://doi.org/10.1039/d5nr02053k","url":null,"abstract":"Cancer has become a serious threat to human health and the search for a safe and effective treatment method is particularly urgent. Chemodynamic therapy (CDT) is noninvasive therapeutic method, but CDT still has certain disadvantages such as limited therapeutic efficacy by overexpression of GSH and single treatment mode. In this paper, ZIF-based nanoparticles called Cu2+-SK-GOD@ZIF-90 is constructed for improved chemodynamic therapy and dual starvation therapy (ST). The nanoparticles is destroyed by high levels of ATP in cancer cells, releasing Cu2+, SK and GOD. Under the action of Cu2+ and GSH, Cu+ is generated and catalyzes H2O2 to produce •OH for CDT by Fenton-like reaction. Both the depletion of GSH and the production of H2O2 improves the effect of chemodynamic therapy. Moreover, SK and GOD are used for dual starvation therapy by inhibiting glycolysis and blocking glucose, respectively. The in-vivo experiments have demonstrated that the synergistic treatment of CDT and dual ST by Cu2+-SK-GOD@ZIF-90 can effectively inhibit the growth of tumors and significantly prolong survival of mice, which is better than Cu2+@ZIF-90 and Cu2+-SK@ZIF-90. This synergistic treatment combining CDT and ST offers an effective and safe way to treat cancer.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"381 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177107","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

A review: metal and metal oxide nanoparticles for environmental applications 金属和金属氧化物纳米颗粒在环境中的应用综述

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-30 DOI: 10.1039/d5nr01973g

Zhihua Yang, Jiawei Shen

{"title":"A review: metal and metal oxide nanoparticles for environmental applications","authors":"Zhihua Yang, Jiawei Shen","doi":"10.1039/d5nr01973g","DOIUrl":"https://doi.org/10.1039/d5nr01973g","url":null,"abstract":"Environmental pollution has become a major issue since chemical species from different sources (e.g., textile industries, paper industries, dye industries, etc.) have been introduced into our living environment. If these chemical species are not properly treated, they will be highly toxic and hazardous to living organisms. Thus, it is important to remove the chemical species before discharge into the environment. Varieties of techniques, such as degradation, adsorption, photocatalysis, etc., have been employed to remove the chemical species. In recent years, metal and metal oxide nanoparticles, which possess high degradation and adsorption performance, have been widely used in environmental treatment. Here we provide a detailed overview of the environmental applications of metal and metal oxide nanoparticles, particularly in water treatment. The metal and metal oxide nanoparticles possess immense potential in environmental applications, however, challenges such as agglomeration, toxicity concerns, and cost-effectiveness are acknowledged. Through a comprehensive analysis of existing literature, this review systematically integrates critical research data. And it presents relevant research findings, aiming to explore environmentally sustainable nanomaterials with superior contaminant removal efficiency and broad applicability.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"5 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177105","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

Temperature-dependent Resistive Switching Statistics and Mechanisms in Nanoscale Graphene-SiO2-Graphene Memristors 纳米尺度石墨烯- sio2 -石墨烯记忆电阻器中温度相关的电阻开关统计和机制

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-29 DOI: 10.1039/d5nr01019e

Yuwen Cai, Yu Wei, Qiuhao Zhu, Xiyuan Liu, Xiao Guo, Wenjie Liang

{"title":"Temperature-dependent Resistive Switching Statistics and Mechanisms in Nanoscale Graphene-SiO2-Graphene Memristors","authors":"Yuwen Cai, Yu Wei, Qiuhao Zhu, Xiyuan Liu, Xiao Guo, Wenjie Liang","doi":"10.1039/d5nr01019e","DOIUrl":"https://doi.org/10.1039/d5nr01019e","url":null,"abstract":"The development of memristors presents a transformative opportunity to revolutionize electronic devices and computing systems by enabling non-volatile memory and neuromorphic computing. Silicon oxide memristors are particularly promising due to their potential for low-cost, high-integration and compatible with existing manufacturing process. In this study, we statistically investigate the switching mechanisms of a nanoscale (sub-2nm) silicon oxide memristor at different temperature. As a unipolar memristor, average set voltage (switching from high resistive state to low resistive state) rises with temperature drop while average reset voltage (switching from low restive state to high state) drops slightly with temperature drop. Standard deviation of those values increase with temperature drops. These behaviors are analyzed based on Weibull distribution. Statistical results suggest that the set process involves the formation of Si conducting filament promoted by the diffusion of oxygen ions from oxygen vacancies, while reset process involves Joule heat driven conductive filament rupture and silicon-oxygen recombination, requiring intensified heating at higher environmental temperatures to counteract extended oxygen ion migration. Beyond general resistive switching mechanisms only involved with the formation and rupture of Si conductive filament, our insights provide a novel understanding to the stochastic nature mechanisms of the switching process at atomic level, with significant implications for future neuromorphic computing applications.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"2 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177108","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

NMR studies of PEG chain dynamics on mesoporous silica nanoparticles for minimizing non-specific binding 介孔二氧化硅纳米颗粒上聚乙二醇链动力学的核磁共振研究，以减少非特异性结合

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-29 DOI: 10.1039/d5nr00936g

Xiaochong Li, Yang Liu, Edmond C. N. Wong, Mitchell A. Winnik

{"title":"NMR studies of PEG chain dynamics on mesoporous silica nanoparticles for minimizing non-specific binding","authors":"Xiaochong Li, Yang Liu, Edmond C. N. Wong, Mitchell A. Winnik","doi":"10.1039/d5nr00936g","DOIUrl":"https://doi.org/10.1039/d5nr00936g","url":null,"abstract":"Mesoporous silica nanoparticles (MSNs) have garnered significant attention for diverse bioscience applications due to their tunable surface properties and high biocompatibility. Functionalization with hydrophilic polymers like poly(ethylene glycol) (PEG) via silane chemistry is commonly employed to reduce non-specific protein adsorption and enhance stability in physiological environments. However, characterizing surface ligands, particularly in aqueous environments, remains a key challenge. In this study, we utilized a comprehensive suite of nuclear magnetic resonance (NMR) techniques, including 1H quantitative NMR (qNMR), diffusion-ordered spectroscopy (DOSY), and relaxation time measurements (T1 and T2), to investigate PEG chain dynamics and conformation on MSN surfaces. Our analysis revealed the relationship between PEG grafting density and chain mobility, demonstrating a transition to a dense brush conformation at higher densities. DOSY and T2 experiments enabled the differentiation of covalently bound PEG from loosely adsorbed molecules. This approach provided a robust method for evaluating the efficacy of surface functionalization, ensuring the quality and consistency of PEGylated nanoparticles. Furthermore, we examined the relationship between NMR-derived parameters and protein adsorption resistance, demonstrating that densely packed PEG chains with a “dense brush” conformation can effectively reduce non-specific adsorption of human serum albumin. These findings provided valuable insights into the design of PEGylated MSNs, supporting improved quality, consistency, and functionality for biomedical applications.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"43 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165630","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

Gallium-based nano-liquid metals enabled antimicrobial mechanisms and biomedical applications 镓基纳米液态金属实现了抗菌机制和生物医学应用

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-29 DOI: 10.1039/d5nr00406c

Yi Liu, Jiahui Chen, Jiani Yang, Jin Chen, Qiang Hao, Jianying Guo, Yaxiong Yang, Jing Liu, Xuyang Sun

{"title":"Gallium-based nano-liquid metals enabled antimicrobial mechanisms and biomedical applications","authors":"Yi Liu, Jiahui Chen, Jiani Yang, Jin Chen, Qiang Hao, Jianying Guo, Yaxiong Yang, Jing Liu, Xuyang Sun","doi":"10.1039/d5nr00406c","DOIUrl":"https://doi.org/10.1039/d5nr00406c","url":null,"abstract":"Antimicrobial resistance has emerged as a significant public healthcare concern, highlighting the urgent need for novel non-antibiotic intervention strategies. There has been a surge in the development of antibiotic-free approaches, with gallium-based liquid metals (GLMs) emerging as a particularly promising alternative. These materials, characterized by their unique liquid nature, excellent biocompatibility, and versatile functionalization, hold significant potential for a wide range of biomedical applications, including tumor therapies, antibacterial treatments, drug delivery, and healthcare monitoring. Further reduction in the physical size of liquid metals (LMs) can enhance cellular interactions and enable targeted therapeutics, thereby amplifying their overall efficacy in biomedical applications. This review highlights the diverse antibacterial mechanisms of gallium-based nano-liquid metals (GNLMs), including antibacterial drug delivery, physical destruction, generation of reactive oxygen species, the “Trojan horse” effect, photothermal effects, and synergistic strategies, and summarizes their principal applications in antibacterial biomedicine, such as antibacterial textiles, antifouling coatings, treatment of gastrointestinal diseases, anti-inflammatory therapy and tissue repair. Finally, this review also discusses the prospects of GNLM antibacterial research, offering guidance for the development of novel antibacterial agents.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"42 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165641","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

Interfacial chalcogen pair-mediated, biaxial strain- and interlayer distance-tuneable type-2 band alignment in an SnSSe homogeneous bilayer: a density functional theory-based analysis 基于密度泛函理论的SnSSe均匀双分子层中界面硫元对介导、双轴应变和层间距离可调的2型波段对准

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-29 DOI: 10.1039/d5nr00552c

Naresh Bahadursha, Chanda Bhavitha Sri, Kuna Krishna Ruthvik, Swastik Bhattacharya, Sayan Kanungo

{"title":"Interfacial chalcogen pair-mediated, biaxial strain- and interlayer distance-tuneable type-2 band alignment in an SnSSe homogeneous bilayer: a density functional theory-based analysis","authors":"Naresh Bahadursha, Chanda Bhavitha Sri, Kuna Krishna Ruthvik, Swastik Bhattacharya, Sayan Kanungo","doi":"10.1039/d5nr00552c","DOIUrl":"https://doi.org/10.1039/d5nr00552c","url":null,"abstract":"This study presents a comprehensive density functional theory-based investigation of the electronic properties of homogeneous bilayer Janus tin sulphide selenide (SnSSe) with different interfacial chalcogen pair configurations. This study focuses on interlayer band alignment, wherein the effects of interlayer distance modulation and applied biaxial strain are methodically studied. Next, the spatial distribution and lifetime of excitonic states are systematically analysed from the in-plane and inter-layer atomic orbital interactions, spatial separation of electron–hole wave functions, and spread of the conduction band in energy. Asymmetric interfacial chalcogen pairing exhibits a finite interlayer dipole moment and interlayer electric field. This reduces the energy bandgap and induces prominent type-2 band alignment between individual SnSSe layers, where band edge Bloch states are strongly localized in alternating layers. An increasing interlayer distance and applied biaxial tensile strain were found to retain the type-2 interlayer band alignment. In contrast, reducing the interlayer distance and biaxial compressive strain significantly altered interlayer atomic orbital interactions and annihilated the type-2 band alignment with a sharp reduction in the energy bandgap owing to the strong delocalization of band edge Bloch states. Thus, this study demonstrates the strain tuneable type-2 band alignment and interlayer excitonic properties of homogeneous bilayer SnSSe with broken interlayer mirror symmetry.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"51 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165557","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

Neomycin Loaded by Tetrahedral Framework Nucleic Acids Enhances Antimicrobial Sensitivity against Bacteria 四面体框架核酸负载新霉素增强抗菌敏感性

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-28 DOI: 10.1039/d5nr01239b

Yibo Li, Yangxue Yao, Yun Wang, Yunfeng Lin, Yao He, Shaojingya Gao, Xiaoxiao Cai

{"title":"Neomycin Loaded by Tetrahedral Framework Nucleic Acids Enhances Antimicrobial Sensitivity against Bacteria","authors":"Yibo Li, Yangxue Yao, Yun Wang, Yunfeng Lin, Yao He, Shaojingya Gao, Xiaoxiao Cai","doi":"10.1039/d5nr01239b","DOIUrl":"https://doi.org/10.1039/d5nr01239b","url":null,"abstract":"Burn wound infections pose significant challenges to burn injury management, and antibiotic therapy now is playing a crucial role in preventing and treating post-burn infections. Neomycin sulfate (NeoS), one of the most commonly used antibiotics for treating multiple bacterial infections, faces limitations such as low bioavailability and severe side effects. Therefore, there is an urgent need for strategies to improve the therapeutic efficacy of NeoS. This study proposes a strategy combining NeoS with nanomaterials, specifically using tetrahedral framework nucleic acids (tFNAs) as a carrier to load NeoS and fabricate tFNAs-loading NeoS (tFNAs-NeoS). This design made antibiotics more sensitive to Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), enabling reduced antibiotic dosages. Moreover, tFNA-NeoS exhibits improved stability, biocompatibility, and tissue utilization compared to free NeoS. Leveraging these advantages, tFNA-NeoS was tested in vivo using animal models, and the results further demonstrated its role in anti-inflammation activity, activating angiogenesis, and promoting wound healing. Thus, this strategy of using tFNAs to deliver antibiotics holds promise for enhancing antibiotic sensitivity and minimizing adverse effects in broader antibacterial scenarios.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"1 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154265","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

Correction: Transformable nanodrugs for overcoming the biological barriers in the tumor environment during drug delivery 更正：可变形的纳米药物，用于克服药物输送过程中肿瘤环境中的生物屏障

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-05-28 DOI: 10.1039/d5nr90108a

Xuejian Li, Zhenkun Huang, Zhihuan Liao, Aijie Liu, Shuaidong Huo

引用次数: 0

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