Nano Futures最新文献_第6页

Enhanced water oxidation reaction activity of Mn3O4 nanocrystals in an alkaline medium by doping transition-metal ions 掺杂过渡金属离子增强Mn3O4纳米晶体在碱性介质中的水氧化反应活性

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-05-17 DOI: 10.1088/2399-1984/ac7098

P. Saraswathi, Anjaly Babu, S. Ramarao, K. Uday Kumar, Hitesh Borkar, C. Rajesh, K. Kumar

{"title":"Enhanced water oxidation reaction activity of Mn3O4 nanocrystals in an alkaline medium by doping transition-metal ions","authors":"P. Saraswathi, Anjaly Babu, S. Ramarao, K. Uday Kumar, Hitesh Borkar, C. Rajesh, K. Kumar","doi":"10.1088/2399-1984/ac7098","DOIUrl":"https://doi.org/10.1088/2399-1984/ac7098","url":null,"abstract":"Designing low-cost, Earth-abundant, and non-precious catalysts for electrochemical water oxidation reactions is particularly important for accelerating the development of sustainable energy sources and, further, can be fed to fuel cells. In the present work, we report the oxygen evolution reaction (OER) activity of a metal-oxide catalyst, Mn3O4, and study the effect of transition metal doping (Cu and Fe) on the OER activity of Mn3O4 in an alkaline medium. The Mn3O4 and transition metal (Cu and Fe) doped Mn3O4 catalysts were prepared using a hydrothermal reaction technique. Powder x-ray diffraction studies revealed that these compounds adopt a tetragonal spinel structure with an I41/amd space group, and this is further supported with Fourier transform infrared spectroscopic measurements. These results are further supported by high-resolution transmission electron microscopic measurements. The electrochemical measurements of these catalysts reveal that the transition metal (Cu and Fe) doped Mn3O4 catalysts show better OER activity than pristine Mn3O4 (MO). The transition metal (Cu and Fe) doped Mn3O4 catalysts exhibit lower overpotential for the OER (η MCO = 300 mV and η MFO = 240 mV) than the MO (η MO = 350 mV) catalyst. The better performance of Fe-doped Mn3O4 is further supported by turnover frequency calculations.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49367842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Trends in nanomaterial-based biosensors for viral detection 基于纳米材料的病毒检测生物传感器的发展趋势

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-05-16 DOI: 10.1088/2399-1984/ac701d

Christian Harito, M. Khalil, N. L. W. Septiani, K. K. Dewi, A. Hardiansyah, B. Yuliarto, F. Walsh

引用次数: 1

Study of the adsorptive removal of (Fe+2) and (Ni+2) from water by synthesized magnetite/corn cobs magnetic nanocomposite 合成磁铁矿/玉米芯磁性纳米复合材料吸附去除水中(Fe+2)和(Ni+2)的研究

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-25 DOI: 10.1088/2399-1984/ac6a31

Mohamed N Sanad, S. El-Dek, U. Eldemerdash, Mohamed M. ElFaham

引用次数: 1

Recent developments in functional triboelectric nanogenerators for flame-retardant, human health, and energy-harvesting fields: a crucial review 用于阻燃、人类健康和能量收集领域的功能性摩擦电纳米发电机的最新进展：一篇重要综述

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-21 DOI: 10.1088/2399-1984/ac691c

Ran Wang, Miaomiao Ji, X. Jin, Qiran Zhang, T. Jiao

引用次数: 2

Participatory Utopian Sketching: A Methodological Framework for Collaborative Citizen (Re)Imagination of Urban Spatial Futures 参与式乌托邦素描:城市空间未来的协同公民(再)想象的方法论框架

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-01 DOI: 10.1016/j.futures.2022.102938

Suzanna Törnroth, J. Day, Moritz F. Fürst, S. Mander

引用次数: 4

Constructing practice-oriented futures for sustainable urban food policy in Bangkok 构建曼谷可持续城市食品政策的实践导向未来

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-01 DOI: 10.1016/j.futures.2022.102949

Kanang Kanatamaturapoj, Steven R. McGreevy, Natapol Thongplew, Motoki Akitsu, J. Vervoort, A. Mangnus, Kazuhiko Ota, Christoph D. D. Rupprecht, Norie Tamura, Maximillian Spiegelberg, Mai Kobayashi, S. Pongkijvorasin, S. Wibulpolprasert

引用次数: 5

Young adults face the future of the United States: perceptions of its promise, perils, and possibilities 年轻人面对美国的未来:对它的希望、危险和可能性的看法

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-01 DOI: 10.1016/j.futures.2022.102951

Joseph Kantenbacher, Deidra Miniard, Nathan Geiger, Landon Yoder, S. Attari

引用次数: 4

Ensuring representativity of scenario sets: the importance of exploring unknown unknowns 确保场景集的代表性:探索未知未知的重要性

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-04-01 DOI: 10.1016/j.futures.2022.102939

E. Eriksson, Karl Hallding, K. Skånberg

引用次数: 3

Progress of graphdiyne-based materials for anodes of alkali metal ion batteries 碱金属离子电池负极石墨烯基材料研究进展

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-03-31 DOI: 10.1088/2399-1984/ac62e6

Manman Liu, Yue Ma, Xiaofeng Fan, D. J. Singh, W. Zheng

{"title":"Progress of graphdiyne-based materials for anodes of alkali metal ion batteries","authors":"Manman Liu, Yue Ma, Xiaofeng Fan, D. J. Singh, W. Zheng","doi":"10.1088/2399-1984/ac62e6","DOIUrl":"https://doi.org/10.1088/2399-1984/ac62e6","url":null,"abstract":"Graphdiyne (GDY)-based materials are carbon allotropes with a two-dimensional (2D) planar structure composed of diacetylene bonds (sp) and sp 2 hybridized carbons. Their unique geometrical and electronic structure give them excellent electrochemical properties. The larger specific surface area and ion-diffusion channels in pores can provide more storage sites for alkali metal ions and increase the diffusion rate of electrons and ions. Hence, GDY-based materials possess broad prospects in electrochemical energy storage and have gained more favor as anode materials for alkali ion batteries. Here, we have made a systematic summary of GDY-based materials and their derivatives, including the geometrical and electronic structures, synthesis, modifications, and storage mechanisms of Li+/Na+/K+, along with the applications in Li+/Na+/K+ batteries. In view of the current situation, the large-scale application of GDY-based materials as anodes in alkali ion batteries is still a great challenge. We hope that this work can provide a theoretical basis for GDY-based materials with superior performance, more convenient and safer preparation, and higher yield.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46668926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 3

Construction of tumor microenvironment and redox responsive nanocarrier-mediated cisplatin co-delivery system for effective chemotherapy to pancreatic cancer 肿瘤微环境和氧化还原反应性纳米载体介导的顺铂共给药系统的构建用于胰腺癌癌症的有效化疗

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-03-29 DOI: 10.1088/2399-1984/ac61f7

Zhou Jia, Hao Zhou, L. Hou, Fang Kou, Tang‐Rui Zhang, Baohua Wang, Wei Wang, Si-Yuan Zhou, Bang-le Zhang

{"title":"Construction of tumor microenvironment and redox responsive nanocarrier-mediated cisplatin co-delivery system for effective chemotherapy to pancreatic cancer","authors":"Zhou Jia, Hao Zhou, L. Hou, Fang Kou, Tang‐Rui Zhang, Baohua Wang, Wei Wang, Si-Yuan Zhou, Bang-le Zhang","doi":"10.1088/2399-1984/ac61f7","DOIUrl":"https://doi.org/10.1088/2399-1984/ac61f7","url":null,"abstract":"Pancreatic cancer is a malignant tumor with a high mortality rate. The rich stroma in tumor tissue is a major barrier to drug penetration and tumor killing. Cisplatin and cisplatin-based nano-delivery systems are widely used as chemotherapeutic agents. However, the side effects and the inability of permeating tumor tissue in depth have limited their application in the clinic. Hyaluronan is an important component of the extracellular matrix in the tumor tissue and has the potential to be targeted for tumor stroma degradation. Therefore, a nanocarrier-mediated cisplatin co-delivery system BPEI-SS-Pt/HAase@CaP consisting of hyaluronidase (HAase) and polymer-cisplatin conjugate BPEI-SS-Pt through disulfide bonding to branched polyethyleneimine (BPEI) was constructed. In the construction of the co-delivery system of BPEI-SS-Pt and HAase, amorphous calcium phosphate is introduced to obtain the tumor microenvironment responsive release of HAase. The particle size of optimized BPEI-SS-Pt/HAase@CaP nano-complexes is 143 ± 14 nm. In the tumor microenvironment, BPEI-SS-Pt/HAase@CaP nano-complexes were able to release HAase to degrade the hyaluronan in the tumor stroma. The results of histochemical and fluorescent labeling showed that hyaluronan was degraded in vivo by BPEI-SS-Pt/HAase@CaP and the nanocarrier-mediated BPEI-SS-Pt can be easily across the loosened stroma and penetrated the tumor tissue more deeply compared with BPEI-SS-Pt without loading HAase. When they were uptaken into tumor cells and responded to high glutathione in the intracellular environment to release cisplatin, more effective chemotherapy to pancreatic cancer was obtained. Compared with the free cisplatin or BPEI-SS-Pt group, BPEI-SS-Pt/HAase@CaP nano-complexes achieved the best antitumor effect in vivo, promising the future clinic use of cisplatin for effective chemotherapy to pancreatic cancer.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2022-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49366088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1