نتایج جستجو برای: carbon nanotube sensor

تعداد نتایج: 467532  

Journal: :Journal of electrochemical science and technology 2021

In electrochemical glucose sensing, the enhancement of sensitivity and response time is essential in developing stable reliable sensors, especially for continuous monitoring. We developed a method to increase shorten sensing upon appropriate addition single wall carbon nanotube onto osmium polymer-based hydrogel electrode. Also, background stabilization dramatically enhanced. Keywords: Continuo...

2013
B. Arash Q. Wang

Owning to their unparalleled sensitivity resolution, nanomechanical resonators have excellent capabilities in design of nano-sensors for gas detection. The current challenge is to develop newdesigns of the resonators for differentiating distinct gas atoms with a recognizably high sensitivity. In this work, the characteristics of impulse wave propagation in carbon nanotube-based sensors are inve...

2014
Kiran Chikkadi Matthias Muoth Cosmin Roman Miroslav Haluska Christofer Hierold

The charge carrier transport in carbon nanotubes is highly sensitive to certain molecules attached to their surface. This property has generated interest for their application in sensing gases, chemicals and biomolecules. With over a decade of research, a clearer picture of the interactions between the carbon nanotube and its surroundings has been achieved. In this review, we intend to summariz...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Daniel A Heller George W Pratt Jingqing Zhang Nitish Nair Adam J Hansborough Ardemis A Boghossian Nigel F Reuel Paul W Barone Michael S Strano

A class of peptides from the bombolitin family, not previously identified for nitroaromatic recognition, allows near-infrared fluorescent single-walled carbon nanotubes to transduce specific changes in their conformation. In response to the binding of specific nitroaromatic species, such peptide-nanotube complexes form a virtual "chaperone sensor," which reports modulation of the peptide second...

2008
Kenneth J Loh Jerome P Lynch Nicholas A. Kotov

This study presents a high-performance inductively coupled multifunctional carbon nanotube thin film sensor for structural monitoring applications. A versatile layer-by-layer self-assembly sensor fabrication technique is employed to encode different sensing mechanisms (e.g., strain and corrosion/pH) within one homogeneous thin film structure. Judicious selection of various polyelectrolyte speci...

Journal: :Journal of the American Chemical Society 2011
Yossi Weizmann David M Chenoweth Timothy M Swager

The ability to detect biological analytes in a rapid, sensitive, operationally simple, and cost-effective manner will impact human health and safety. Hybrid biocatalyzed-carbon nanotube (CNT) nanowire-based detection methods offer a highly sensitive and specific platform for the fabrication of simple and effective conductometric devices. Here, we report a conductivity-based DNA detection method...

Journal: :Chemical Society reviews 2006
E S Snow F K Perkins J A Robinson

Single-walled carbon nanotubes possess unique properties that make them a potentially ideal material for chemical sensing. However, their extremely small size also presents technical challenges for realizing a practical sensor technology. In this tutorial review we explore the transduction physics by which the presence of molecular adsorbates is converted into a measurable electronic signal, an...

2014
Muhammad Aniq Shazni Mohammad Haniff Hing Wah Lee Daniel Chia Sheng Bien Aun Shih Teh Ishak Abdul Azid

This paper presents a functionalized, horizontally oriented carbon nanotube network as a sensing element to enhance the sensitivity of a pressure sensor. The synthesis of horizontally oriented nanotubes from the AuFe catalyst and their deposition onto a mechanically flexible substrate via transfer printing are studied. Nanotube formation on thermally oxidized Si (100) substrates via plasma-enha...

2006
Han Nim Choi Ja-Young Lee Young-Ku Lyu Won-Yong Lee

A highly sensitive and stable tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)3) electrogenerated chemiluminescence (ECL) sensor was developed based on carbon nanotube (CNT) dispersed in mesoporous composite films of sol–gel titania and perfluorosulfonated ionomer (Nafion). Single-wall (SWCNT) and multi-wall carbon nanotubes (MWCNT) can be easily dispersed in the titania–Nafion composite solution. Th...

2018
Jandro L. Abot Mário R. Góngora-Rubio Jude C. Anike César Y. Kiyono Luís Augusto Motta Mello Valtemar F. Cardoso Reinaldo L. S. Rosa Derek A. Kuebler Grace E. Brodeur Amani H. Alotaibi Marisa P. Coene Lauren M. Coene Elizabeth Jean Rafael C. Santiago Francisco H. A. Oliveira Ricardo Rangel Gilles P. Thomas Kalayu Belay Luciana W. da Silva Rafael T. Moura Antonio C. Seabra Emílio Carlos Nelli Silva

Carbon nanotube yarns are micron-scale fibers comprised by tens of thousands of carbon nanotubes in their cross section and exhibiting piezoresistive characteristics that can be tapped to sense strain. This paper presents the details of novel foil strain gauge sensor configurations comprising carbon nanotube yarn as the piezoresistive sensing element. The foil strain gauge sensors are designed ...

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