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相关论文: Nanoscale field effect transistor for biomolecular…

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We report the observation of channel-width dependent enhancement in nanoscale field effect transistors containing lithographically-patterned silicon nanowires as the conduction channel. These devices behave as conventional…

其他凝聚态物理 · 物理学 2008-02-18 Xihua Wang , Yu Chen , Mi K. Hong , Shyamsunder Erramilli , Pritiraj Mohanty

Silicon nanochannel field effect transistor (FET) biosensors are one of the most promising technologies in the development of highly sensitive and label-free analyte detection for cancer diagnostics. With their exceptional electrical…

Sensitive biomarker detection in physiological fluids is often limited by Debye screening, which suppresses electrostatic signals at sensor surfaces. Here we report a sensing approach based on flexoelectric resonance in silicon nanowire…

材料科学 · 物理学 2026-05-01 Ang Liu , Jingsong Shang , Jiangang J. Du , Shyamsunder Erramilli , Pritiraj Mohanty

Silicon nanochannel biological field effect transistors have been developed for glucose detection. The device is nanofabricated from a silicon-on-insulator wafer with a top-down approach and surface functionalized with glucose oxidase. The…

生物物理 · 物理学 2008-02-14 Xihua Wang , Yu Chen , Katherine A. Gibney , Shyamsunder Erramilli , Pritiraj Mohanty

We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors. A strong coupling between the liquid gate and…

The successful detection of biomolecules by a Field Effect Transistor-based biosensor (BioFET) is dictated by the sensor's intrinsic Signal-to-Noise Ratio (SNR). The detection limit of a traditional BioFET is fundamentally limited by…

应用物理 · 物理学 2019-07-24 Nicolò Zagni , Paolo Pavan , Muhammad Ashraf Alam

The development of next generation medicines demand more sensitive and reliable label free sensing able to cope with increasing needs of multiplexing and shorter times to results. Field effect transistor-based biosensors emerge as one of…

应用物理 · 物理学 2019-05-22 Serena Rollo , Dipti Rani , Renaud Leturcq , Wouter Olthuis , César Pascual García

Silicon nanowires have been surface functionalized with the enzyme urease for biosensor applications to detect and quantify urea concentration. The device is nanofabricated from a silicon on insulator (SOI) wafer with a top down lithography…

生物物理 · 物理学 2011-01-05 Yu Chen , Xihua Wang , Mi Hong , Shyamsunder Erramilli , Pritiraj Mohanty

Field-Effect Transistors with graphene channels or GFETs are an interesting alternative for the detection of analytes in biological fluids since the electrical behavior of the channel changes when exposed to a sample (among other detection…

医学物理 · 物理学 2024-07-16 Ricardo Bravo , Ricardo Silva , Eric Barret , John Brunnings , Adianette Segarra

Two-dimensional (2D) materials have been used extensively in various fields due to their unique physical and chemical properties. Among their diverse applications, field-effect transistor biosensors (bio-FETs) promise a brilliant prospect…

医学物理 · 物理学 2022-08-24 Foad Ghasemi , Abdollah Salimi

Graphene field effect transistors (G-FETs) have appeared as suitable candidates for sensing charges and have thus attracted large interest for ion and chemical detections. In particular, their high sensitivity, chemical robustness,…

介观与纳米尺度物理 · 物理学 2024-02-08 Océane Terral , Guillaume Audic , Arnaud Claudel , Justine Magnat , Aurélie Dupont , Christophe J. Moreau , Cécile Delacour

An evaluation of the gate capacitance of a field-effect transitor (FET) whose channel length and width are several ten nanometer, is a key point for sensors applications. However, experimental and precise evaluation of capacitance in the aF…

介观与纳米尺度物理 · 物理学 2011-09-16 Nicolas Clement , Katsuhiko Nishiguchi , Akira Fujiwara , Dominique Vuillaume

The sensitive conductance change of semiconductor nanowires and carbon nanotubes in response to binding of charged molecules provide a novel sensing modality which is generally denoted as nanoFET sensors. In this paper, we study the scaling…

材料科学 · 物理学 2009-11-13 Fu-Shan Zhou , Qi-Huo Wei

High performance enhancement mode semiconducting carbon nanotube field-effect transistors (CNTFETs) are obtained by combining ohmic metal-tube contacts, high dielectric constant HfO2 films as gate insulators, and electrostatically doped…

介观与纳米尺度物理 · 物理学 2015-06-24 Ali Javey , Jing Guo , Damon B. Farmer , Qian Wang , Dunwei Wang , Roy G. Gordon , Mark Lundstrom , Hongjie Dai

We report optically as well as electronically controlled, bio-electronic field-effect transistor (FET) based on the hybrid film of a photo-active purple membrane and electronically conducting single-walled carbon nanotubes (SWNTs). Two…

应用物理 · 物理学 2024-09-05 Vikram Bakaraju , Senthil Prasad , Brijesh Meena , Harsh Chaturvedi

Graphene Field-Effect Transistors (GFETs) are increasingly employed as biochemical sensors due to their exceptional electronic properties, surface sensitivity, and potential for miniaturization. A critical challenge in deploying GFETs is…

Understanding the dynamics of electrical signals within neuronal assemblies is crucial to unraveling complex brain function. Despite recent advances in employing optically active nanostructures in transmembrane potential sensing, there…

Field-effect transistors (FETs) with single gates are adversely affected by short channel effects such as drain-induced barrier lowering (DIBL) and increases in the magnitude of sub-threshold swing as the channel length is reduced.…

材料科学 · 物理学 2026-04-22 Chankeun Yoon , Juhan Ahn , Yuchen Zhou , Jaydeep P. Kulkarni , Ananth Dodabalapur

Seamless connection of molecular nanonetworks to macroscale cyber networks is envisioned to enable the Internet of Bio-NanoThings, which promises for cutting-edge applications, especially in the medical domain. The connection requires the…

新兴技术 · 计算机科学 2016-03-29 Murat Kuscu , Ozgur B. Akan

We measure the small signal, 1 GHz source-drain dynamical conductance of a back-gated single-walled carbon nanotube field effect transistor at both low and high dc bias voltages. At all bias voltages, the intrinsic device dynamical…

介观与纳米尺度物理 · 物理学 2009-11-11 Z. Yu , C. Rutherglan P. J. Burke
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