Nano Futures最新文献_第6页

Electron beam lithography on non-planar, suspended, 3D AFM cantilever for nanoscale thermal probing 电子束光刻在非平面，悬浮，三维原子力显微镜悬臂上的纳米热探测

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-06-02 DOI: 10.1088/2399-1984/ac7599

R. Swami, G. Julie, D. Singhal, J. Paterson, J. Maire, S. Le-Denmat, J. Motte, S. Gomes, O. Bourgeois

引用次数: 0

Magnetic nanoparticles and magnetic particle spectroscopy-based bioassays: a 15 year recap. 磁性纳米颗粒和基于磁颗粒光谱的生物测定:15年回顾。

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-06-01 DOI: 10.1088/2399-1984/ac5cd1

Kai Wu, Jinming Liu, Vinit Kumar Chugh, Shuang Liang, Renata Saha, Venkatramana D Krishna, Maxim C-J Cheeran, Jian-Ping Wang

{"title":"Magnetic nanoparticles and magnetic particle spectroscopy-based bioassays: a 15 year recap.","authors":"Kai Wu, Jinming Liu, Vinit Kumar Chugh, Shuang Liang, Renata Saha, Venkatramana D Krishna, Maxim C-J Cheeran, Jian-Ping Wang","doi":"10.1088/2399-1984/ac5cd1","DOIUrl":"https://doi.org/10.1088/2399-1984/ac5cd1","url":null,"abstract":"<p><p>Magnetic nanoparticles (MNPs) have unique physical and chemical properties, such as high surface area to volume ratio and size-related magnetism, which are completely different from their bulk materials. Benefiting from the facile synthesis and chemical modification strategies, MNPs have been widely studied for applications in nanomedicine. Herein, we firstly summarized the designs of MNPs from the perspectives of materials and physicochemical properties tailored for biomedical applications. Magnetic particle spectroscopy (MPS), first reported in 2006, has flourished as an independent platform for many biological and biomedical applications. It has been extensively reported as a versatile platform for a variety of bioassays along with the artificially designed MNPs, where the MNPs serve as magnetic nanoprobes to specifically probe target analytes from fluid samples. In this review, the mechanisms and theories of different MPS platforms realizing volumetric- and surface-based bioassays are discussed. Some representative works of MPS platforms for applications such as disease diagnosis, food safety and plant pathology monitoring, drug screening, thrombus maturity assessments are reviewed. At the end of this review, we commented on the rapid growth and booming of MPS-based bioassays in its first 15 years. We also prospected opportunities and challenges that portable MPS devices face in the rapidly growing demand for fast, inexpensive, and easy-to-use biometric techniques.</p>","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9531898/pdf/nihms-1799789.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10273867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Nanomaterials and printing techniques for 2D and 3D soft electronics 二维和三维软电子的纳米材料和打印技术

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-05-31 DOI: 10.1088/2399-1984/ac74f9

L. Migliorini, Sara Moon Villa, T. Santaniello, P. Milani

{"title":"Nanomaterials and printing techniques for 2D and 3D soft electronics","authors":"L. Migliorini, Sara Moon Villa, T. Santaniello, P. Milani","doi":"10.1088/2399-1984/ac74f9","DOIUrl":"https://doi.org/10.1088/2399-1984/ac74f9","url":null,"abstract":"The merging of electronically conductive elements with soft polymeric materials gave birth to the novel field of soft and stretchable electronics and robotics, in which the key aspect is the maintenance of electrical properties even under severe mechanical deformation. Here, we review the variety of fabrication techniques (dry, wet, and printed) that have been designed, studied, and tested, which leads to a forecast of how soft technologies will have a revolutionary impact on the progress of biomedicine and pre-clinical practice, wearable electronics, environmental monitoring and recognition, smart farming and precision agriculture, and energy harvesting and storage. A particular focus is given to techniques for the printing of 2D and 3D electronics, which allow compliant conductive elements to be coupled to complex three-dimensional objects and platforms. We discuss why it is now necessary to choose between different nanoscale building blocks, nanomaterials, and deposition techniques and to optimize such choices. The watchwords to be prioritized are scalability, versatility, environmental sustainability and biocompatibility, integration, and reduction of the fabrication steps. The target is the design of an eco-friendly and versatile approach for the fully additive manufacture of free-form advanced soft electronic devices (which will eventually be biocompatible and biodegradable) using a multilayer, multimaterial process that can print both active and passive 3D elements on soft polymeric platforms. The sequential combination of dry and wet spray printing is shown to be one of the most promising approaches.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42524590","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

Synthesis and characterization of a g-C3N4/TiO2-ZnO nanostructure for photocatalytic degradation of methylene blue 光催化降解亚甲基蓝的g-C3N4/TiO2-ZnO纳米结构的合成与表征

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-05-31 DOI: 10.1088/2399-1984/ac74fa

Sepide Saeidpour, B. Khoshnevisan, Z. Boroumand

{"title":"Synthesis and characterization of a g-C3N4/TiO2-ZnO nanostructure for photocatalytic degradation of methylene blue","authors":"Sepide Saeidpour, B. Khoshnevisan, Z. Boroumand","doi":"10.1088/2399-1984/ac74fa","DOIUrl":"https://doi.org/10.1088/2399-1984/ac74fa","url":null,"abstract":"In this study, graphitic carbon nitride (g-C3N4) nanostructures with different molar ratios of ZnO and TiO2 (i.e. g-C3N4/TiO2, g-C3N4/ZnO, and g-C3N4/TiO2-ZnO) were synthesized. The synthesized samples were characterized using field-emission scanning electron microscopy (FE-SEM), x-ray diffraction, Brunauer–Emmett–Teller (BET) analysis, and ultraviolet (UV)–visible diffuse reflectance spectroscopy (UV-vis-DRS) techniques. The FE-SEM images showed the surface morphology of each sample. The UV-vis-DRS results indicated that the bandgap of TiO2 was reduced by adding g-C3N4 and different molar ratios of ZnO. The results obtained from BET analysis confirmed that the surface area of the g-C3N4/TiO2-ZnO (1:10) nanostructure was 97.494 cm2 g−1, which was comparatively higher than other nanostructures, and became suitable for photocatalytic activity. The photocatalytic activity of the g-C3N4/TiO2-ZnO nanostructure was performed by photo-degradation of methylene blue (MB) dye under simulated solar light. The results of the photocatalytic activity showed that the synthesized nanostructure had good degradation under UV and visible light irradiation by 94.6% and 62.4%, respectively. Also, the kinetics of the photocatalytic degradation confirmed that degradation of MB dye in the presence of UV light was faster than visible light. Furthermore, a study of the reusability of the nanostructure exhibited good photo-stability and activity after six runs.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43000975","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

Bipolar dual-broadband photodetectors based on perovskite heterojunctions 基于钙钛矿异质结的双极双宽带光电探测器

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-05-17 DOI: 10.1088/2399-1984/ac7099

Yu Li, F. Guo, Shanshan Yu, Jian Wang, Shihe Yang

引用次数: 0

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":null,"pages":null},"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