نتایج جستجو برای: fet based nanobiosensor

تعداد نتایج: 2936583  

2015
Kyu-Tae Park Dong-Guk Cho Ji-Woon Park Seunghun Hong Jungho Hwang

We report a technique for the detection of aerosolized viruses. Conventional field-effect-transistor (FET)-based techniques use solution-based processes, thus require antibody binding to the detection region of the FET prior to the supply of the analyte. With the method described here, virus-antibody-bound particles are delivered to the FET during detection; therefore, neither a pre-treatment a...

2018
Antoine Verger Carina Stegmayr Norbert Galldiks Axel Van Der Gucht Philipp Lohmann Gabriele Stoffels Nadim J. Shah Gereon R. Fink Simon B. Eickhoff Eric Guedj Karl-Josef Langen

PET using the amino-acid O-(2-18F-fluoroethyl)-l-tyrosine (18F-FET) is gaining increasing interest for brain tumour management. Semi-quantitative analysis of tracer uptake in brain tumours is based on the standardized uptake value (SUV) and the tumour-to-brain ratio (TBR). The aim of this study was to explore physiological factors that might influence the relationship of SUV of 18F-FET uptake i...

2014

Nanotechnology is the manipulation of material on an atomic and molecular scale; by changing its physical, chemical and biological properties to produce novel materials, devices, and systems. Nanomaterials exhibit remarkable characteristics such as high surface to volume ratio, catalytic activity, and biocompatibility which make them suitable for various biomedical applications. Nanotechnology ...

Journal: :Chemical communications 2014
Rafiq Ahmad Nirmalya Tripathy Da-Un-Jin Jung Yoon-Bong Hahn

A highly sensitive hydrazine chemical sensor has been fabricated based on a field-effect transistor (FET) by growing vertically-aligned ZnO nanorods directly on silver electrodes. The FET sensor showed a high sensitivity and a low limit of detection (LOD) of 59.175 μA cm(-2)μM(-1) and ~3.86 nM, respectively. This demonstrates a cost effective and low power consuming FET strategy for the detecti...

2017
Cheol-Min Lim In-Kyu Lee Ki Joong Lee Young Kyoung Oh Yong-Beom Shin Won-Ju Cho

This work describes the construction of a sensitive, stable, and label-free sensor based on a dual-gate field-effect transistor (DG FET), in which uniformly distributed and size-controlled silicon nanowire (SiNW) arrays by nanoimprint lithography act as conductor channels. Compared to previous DG FETs with a planar-type silicon channel layer, the constructed SiNW DG FETs exhibited superior elec...

Journal: :Chest 1991
J Mortensen M Falk S Groth C Jensen

We studied the effects of two chest physiotherapy regimens on whole lung and regional tracheobronchial clearance (TBC) in ten patients with cystic fibrosis. The regimens were given on two separate days and consisted of 20 min of (1) postural drainage and the forced expiration technique (PD + FET), and (2) positive expiratory pressure (PEP-mask) and FET (PEP + FET). A third day served as control...

Journal: :Journal of rehabilitation research and development 2003
Mirjana B Popovic Dejan B Popovic Thomas Sinkjaer Aleksandra Stefanovic Laszlo Schwirtlich

This paper describes a clinical randomized single-blinded study of the effects of Functional Electrical Therapy (FET) on the paretic arms of subjects with acute hemiplegia caused by strokes. FET is an exercise program that comprises voluntary arm movements and opening, closing, holding, and releasing of objects that are assisted by a neural prosthesis (electrical stimulation). FET consisted of ...

2011
Wei Zhou Yingyi Ma Huan Yang Yi Ding Xiangang Luo

By using triangular silver (Ag) nanoparticle array, a localized surface plasmon resonance (LSPR) nanosensor was fabricated and shown to sense serum p53 protein in vitro, which is involved in head and neck squamous cell carcinoma (HNSCC). The nanosensor consists of a triangular Ag nanoparticles array with single particle dimension of 120 nm in-plane width and 45 nm out-of-plane height. When exam...

2014
Meenakshi Sharma Ajay Kumar Garg

Nanotechnology is currently playing a significant role in the development of biosensors. The sensitivity and performance of biosensors improves drastically by incorporating nanomaterials and adopting new signal transduction technologies. With the rapid development of tools and fabrication processes , nanoscale sensors capable of interacting with extremely small molecules have been developed. Th...

Background: Controlled ovarian stimulation (COS) has been shown to advance endometrial maturation and affect adversely implantation in assisted reproduction technology (ART) cycles. It has been reported that there is a better embryo-endometrium synchrony in frozenthawed embryo transfer (FET) cycles than fresh embryo transfer (ET) cycles. The Background of this study was to compare ongoing pregn...

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