نتایج جستجو برای: nanogap biosensor

تعداد نتایج: 9652  

2018
Berna Dalkıran Ceren Kaçar Pınar Esra Erden Esma Kılıç

Zinc oxide nanoparticles (ZnONPs), multiwalled carbon nanotubes (MWCNTs) and 1,4benzoquinone (BQ) dispersed in chitosan (CS) matrix were used to construct a xanthine biosensor. Xanthine oxidase (XOx) was immobilized onto BQ-MWCNTs-ZnO–CS composite modified glassy carbon electrode (GCE) using glutaraldehyde as the crosslinking agent. The parameters of the construction process and the experimenta...

Journal: :Journal of molecular recognition : JMR 2001
Rebecca L Rich David G Myszka

We identified 1219 articles published in 2006 that described work performed using commercial optical biosensor platforms. It is interesting to witness how the biosensor market is maturing with an increased number of instrument manufacturers offering a wider variety of platforms. However, it is clear from a review of the results presented that the advances in technology are outpacing the skill l...

Journal: :ACS nano 2010
Geoffrey J Ashwell Laurie J Phillips Benjamin J Robinson Barbara Urasinska-Wojcik Colin J Lambert Iain M Grace Martin R Bryce Rukkiat Jitchati Mustafa Tavasli Timothy I Cox Ian C Sage Rachel P Tuffin Shona Ray

The highly doped electrodes of a vertical silicon nanogap device have been bridged by a 5.85 nm long molecular wire, which was synthesized in situ by grafting 4-ethynylbenzaldehyde via C-Si links to the top and bottom electrodes and thereafter by coupling an amino-terminated fluorene unit to the aldehyde groups of the activated electrode surfaces. The number of bridging molecules is constrained...

2005
Mustafa Kemal Sezgintürk Erhan Dinçkaya

An amperometric benzoic acid-sensing inhibitor biosensor was prepared by immobilizing mushroom (Agaricus bisporus) tissue homogenate on a Clark-type oxygen electrode. The effects of the quantity of mushroom tissue homogenate, the quantity of gelatin and the effect of the crosslinking agent glutaraldehyde percent on the biosensor were studied. The optimum concentration of phenol used as substrat...

2016
I. M. APETREI C. DIACONU C. APETREI C. GEORGESCU

A novel biosensor based on carbon nanofibers/diamine oxidase was prepared by modification of screen-printing electrodes. The enzyme diamine oxidase was immobilized onto the carbon nanofibers modified carbon screen-printed electrodes by drop and dry method followed by cross-linking reaction with glutaraldehyde. The presence of norepinephrine in analyzed samples was correlated to increasing of ca...

Journal: :Microscopy research and technique 2012
Elizabeth Hinde Michelle A Digman Christopher Welch Klaus M Hahn Enrico Gratton

We present here the phasor approach to biosensor Förster resonance energy transfer (FRET) detection by fluorescence lifetime imaging microscopy (FLIM) and show that this method of data representation is robust towards biosensor design as well as the fluorescence artifacts inherent to the cellular environment. We demonstrate this property on a series of dual and single chain biosensors, which re...

2013
Sung-Min Jung Tae-Kyung Kim Jung-Ho Eom Tai-Myoung Chung

We present a quantitative overhead analysis for effective task migration in biosensor networks. A biosensor network is the key technology which can automatically provide accurate and specific parameters of a human in real time. Biosensor nodes are typically very small devices, so the use of computing resources is restricted. Due to the limitation of nodes, the biosensor network is vulnerable to...

Journal: :Journal of The Japan Institute of Electronics Packaging 2013

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