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The significance of efficient and accurate diagnosis amidst the unique challenges posed by the COVID-19 pandemic underscores the urgency for innovative approaches. In response to these challenges, we propose a transfer learning-based…

图像与视频处理 · 电气工程与系统科学 2023-12-12 Kenan Morani , Esra Kaya Ayana , Devrim Unay

With the ongoing global pandemic of coronavirus disease 2019 (COVID-19), there is an increasing quest for more accessible, easy-to-use, rapid, inexpensive, and high accuracy diagnostic tools. Traditional disease diagnostic methods such as…

Progress in real-time, simultaneous in vivo detection of multiple neurotransmitters will help accelerate advances in neuroscience research. The need for development of probes capable of stable electrochemical detection of rapid…

We propose a water-immersed nucleobase-functionalized suspended graphene nanoribbon as an intrinsically selective device for nucleotide detection. The proposed sensing method combines Watson-Crick selective base pairing with graphene's…

介观与纳米尺度物理 · 物理学 2016-02-17 Eugene Paulechka , Tsjerk A. Wassenaar , Kenneth Kroenlein , Andrei Kazakov , Alex Smolyanitsky

The use of electric fields for signalling and control in liquids is widespread, spanning bioelectric activity in cells to electrical manipulation of microstructures in lab-on-a-chip devices. However, an appropriate tool to resolve the…

The Coronavirus disease 2019 (COVID-19) has affected several million people. With the outbreak of the epidemic, many researchers are devoting themselves to the COVID-19 screening system. The standard practices for rapid risk screening of…

图像与视频处理 · 电气工程与系统科学 2020-09-08 Yanwei Fu , Feng Li , Wenxuan Wang , Haicheng Tang , Xuelin Qian , Mengwei Gu , Xiangyang Xue

This study introduces a graphene-assisted terahertz metamaterial absorber operating at a resonance frequency of 8.436 THz. The unit cell incorporates a graphene-based split-ring resonator (SRR) configuration with additional auxiliary splits…

光学 · 物理学 2025-11-19 Osama Haramine Sinan , Roktim Barua , Nipa Dhar , Muhammad Asad Rahman

Mycotoxins comprise a frequent type of toxins present in food and feed. The problem of mycotoxin contamination has been recently aggravated due to the increased complexity of the farm-to-fork chains, resulting in negative effects on human…

A novel nanostructured electrochemical immunsensor for the determination of progesterone is reported. The approach combines the properties of gold nanoparticles with the use of a graphite-Teflon composite electrode matrix, into which gold…

材料科学 · 物理学 2007-08-13 J. -M. Pingarron , P. Yanez-Sedeno , A. Gonzalez-Cortes , V. Carralero

An analysis of a novel magnetic field sensor based on a graphene spin capacitor is presented. The proposed device consists of graphene nanoribbons on top of an insulator material connected to a ferromagnetic source/drain. The time evolution…

介观与纳米尺度物理 · 物理学 2015-05-19 Y. G. Semenov , J. M. Zavada , K. W. Kim

The development of wearable photodetectors demands a unique combination of broadband optical sensitivity, mechanical flexibility, and skin-compatibility, with these requirements rarely met simultaneously by existing technologies. Here, we…

Field-effect transistors coupled to integrated antennas (TeraFETs) are photodetectors being actively developed for the THz frequency range ($\sim$ 100 GHz - 10 THz). Among them, Graphene TeraFETs (G-TeraFETs) have demonstrated distinctive…

介观与纳米尺度物理 · 物理学 2024-03-29 Florian Ludwig , Andrey Generalov , Jakob Holstein , Anton Murros , Klaara Viisanen , Mika Prunnila , Hartmut G. Roskos

Traditional detection methods of C-reactive protein (CRP) inflammation biomarker, in blood are expensive, time-consuming and labor-intensive. Such existing point-of-care CRP detection devices remain invasive, since they need blood sampling…

医学物理 · 物理学 2024-07-25 Aristea Grammoustianou , Ali Saeidi , Johan Longo , Felix Risch , Adrian M. Ionescu

Early and accurate severity assessment of Coronavirus disease 2019 (COVID-19) based on computed tomography (CT) images offers a great help to the estimation of intensive care unit event and the clinical decision of treatment planning. To…

图像与视频处理 · 电气工程与系统科学 2021-09-09 Geng-Xin Xu , Chen Liu , Jun Liu , Zhongxiang Ding , Feng Shi , Man Guo , Wei Zhao , Xiaoming Li , Ying Wei , Yaozong Gao , Chuan-Xian Ren , Dinggang Shen

COVID-19 is a novel virus that attacks the upper respiratory tract and the lungs. Its person-to-person transmissibility is considerably rapid and this has caused serious problems in approximately every facet of individuals lives. While some…

图像与视频处理 · 电气工程与系统科学 2022-09-28 Abdolreza Marefat , Mahdieh Marefat , Javad Hasannataj Joloudari , Mohammad Ali Nematollahi , Reza Lashgari

We examined the potential of antibody-functionalized single-walled carbon nanotube (SWNT) field-effect transistors (FETs) for use as a fast and accurate sensor for a Lyme disease antigen. Biosensors were fabricated on oxidized silicon…

Graphene, owing to its zero bandgap electronic structure, is promising as an absorption material for ultra-wideband photodetection applications. However, graphene-absorption based detectors inherently suffer from poor responsivity due to…

应用物理 · 物理学 2019-08-20 Krishna Murali , Nithin Abraham , Sarthak Das , Sangeeth Kallatt , Kausik Majumdar

Using transient absorption (TA) microscopy as a hot electron thermometer we show disorder-assisted acoustic-phonon supercollisions (SCs) best describes the rate-limiting relaxation step in graphene over a wide range of lattice temperatures…

材料科学 · 物理学 2013-10-25 Matt W. Graham , Su-Fei Shi , Zenghui Wang , Daniel C. Ralph , Jiwoong Park , Paul L. McEuen

Silicon carbide detectors exhibit good detection performance and are being considered for detection applications. However, the presence of surface electrode of detector limits the application of low-penetration particle detectors,…

仪器与探测器 · 物理学 2025-05-29 Zhenyu Jiang , Xuemei Lu , Congcong Wang , Yingjie Huang , Xiaoshen Kang , Suyu Xiao , Xiyuan Zhang , Xin Shi

A fast silicon-graphene hybrid plasmonic waveguide photodetectors beyond 1.55 {\mu}m is proposed and realized by introducing an ultra-thin wide silicon-on-insulator ridge core region with a narrow metal cap. With this novel design, the…