Results 81 to 90 of about 14,256 (271)

Evaporation‐Enhanced Redox Cycling for Rapid Detection of Attomolar SARS‐CoV‐2 Virions Using Nanolithography‐Free Electrochemical Devices

Advanced Materials Technologies, EarlyView.
This study presents microfabricated electrochemical sensors for detecting ultralow viral particles counts through evaporation‐enhanced redox cycling (E2RC). To achieve sub‐micrometer gap in interdigitated microelectrodes, a scalable, nanolithography‐free fabrication method is developed.
Pouya Soltan Khamsi, Vinay Kammarchedu, Aida Ebrahimi   +2 more
wiley   +1 more source

Ultrahigh Responsivity In₂O₃ UVA Photodetector through Modulation of Trimethylindium Flow Rate

Crystals
Oxygen vacancies (Vo) can significantly degrade the electrical properties of indium oxide (In2O3) thin films, thus limiting their application in the field of ultraviolet detection.
Yifei Li, Tiwei Chen, Yongjian Ma, Yu Hu, Li Zhang, Xiaodong Zhang, Jinghang Yang, Lu Wang, Huanyu Zhang, Changling Yan, Zhongming Zeng, Baoshun Zhang   +11 more
doaj   +1 more source

Fabrication of three-dimensional suspended, interlayered and hierarchical nanostructures by accuracy-improved electron beam lithography overlay

Scientific Reports, 2017
Nanofabrication techniques are essential for exploring nanoscience and many closely related research fields such as materials, electronics, optics and photonics.
Gwanho Yoon, Inki Kim, Sunae So, Jungho Mun, Minkyung Kim, Junsuk Rho   +5 more
doaj   +1 more source

Biological and Mechanical Limitations for Chronic Fast‐Scan Cyclic Voltammetry Sensor Design

Advanced Materials Technologies, EarlyView.
Real‐time detection of neurochemicals has demonstrated value in the field of neuroscience. However, current methods have limitations for use in the chronic setting, which is often the ideal environment for research. This article discusses these limitations, as well as technologies that have been developed to overcome them, and provides recommendations ...
Mason L. Perillo, Bhavna Gupta, Akash Saxena, Alexandra P. Veltri, Wen Li, James R. Siegenthaler, Erin K. Purcell   +6 more
wiley   +1 more source

Extraction of domain-specific magnetization reversal for nanofabricated periodic arrays using soft x-ray resonant magnetic scattering [PDF]

arXiv, 2003
A simple scheme to extract the magnetization reversals of characteristic magnetic domains on nanofabricated periodic arrays from soft x-ray resonant magnetic scattering (SXRMS) data is presented. The SXRMS peak intensities from a permalloy square ring array were measured with field cycling using circularly polarized soft x-rays at the Ni L$_3 ...
arxiv  

Progress in Surface Plasmon and Other Resonance Biosensors for Biomedical Applications

Advanced Materials Technologies, EarlyView.
This is the shortened version: Recent advancements in surface plasmon resonance and other optical resonance biosensors for biomedical applications are presented. Advanced sensing strategies are examined for the detection of diverse analytes, integration of nanomaterials and machine learning, and emerging nonplasmonic modes like guided mode resonance ...
Faten Bashar Kamal Eddin, Houxin Fan, Zhenchao Liu, Paolo Donati, Youssef Amin, Yap Wing Fen, Junbo Liang, Pier Paolo Pompa, Sailing He   +8 more
wiley   +1 more source

Optical Nanoscopy for Elucidating Nano–Bio Interactions: A One Health Perspective

Advanced Optical Materials, EarlyView.
The review comprehensively summarizes the application of far‐field fluorescence nanoscopy for the characterization of nanomaterial interactions with biological systems at the single‐particle and molecular scale, with an accent on their impact on human and ecosystem health.
Elisa De Luca, Chiara Coricciati, Marcella Trombetta, Giuseppe Gigli, Pamela Mozetic, Alberto Rainer   +5 more
wiley   +1 more source

Reusing Waste Coffee Grounds as Electrode Materials: Recent Advances and Future Opportunities

Global Challenges, Volume 7, Issue 1, January 2023., 2023
Coffee industry produces more than 8 million tons of waste coffee grounds (WCG) annually. In recent decades, upcycling of WCG‐derived carbon into value‐added electrode materials has attracted growing interests owing to their low cost and high electrochemical properties.
Matthew Pagett, Kar Seng Teng, Geraint Sullivan, Wei Zhang   +3 more
wiley   +1 more source

Electron structure in modified BaTiO(3)/poly(vinylidene fluoride) nanocomposite with high dielectric property and energy density

IET Nanodielectrics, 2019
It's significantly urgent to develop the polymer film capacitor with large energy density and high charge-discharge efficiency for the applications of portable electronics and power hybrid system.
Huijian Ye, Hongyun Chen, Xuanhe Zhang, Yafei Chen, Wenzhu Shao, Lixin Xu   +5 more
doaj   +1 more source

Control of optical emission in doped GaAs/AlGaAs nanofabricated quantum dots [PDF]

arXiv, 2007
Dilute arrays of GaAs/AlGaAs modulation-doped quantum dots (QDs) fabricated by electron-beam lithography and low impact reactive-ion etching exhibit highly homogeneous luminescence. Single quantum dots display spectral emission with peak energies and linewidths linked largely to the geometrical diameter of the dot and to the built-in electron ...
arxiv