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The challenge of heavy metal detection for environmental, industrial and medical purposes has led to the development of many analytical techniques. Stripping voltammetry is a very sensitive electrochemical method and has been widely used…

Chemical Physics · Physics 2017-08-18 Tingting Wang , Wei Yue

The aim of this paper is to introduce current advances in technology that could enable the development of fully drinkable and autonomous bio-electronic CMOS sensors in the form of dust particles, capable of identifying the source of a…

Applied Physics · Physics 2018-05-17 Sandro Carrara , Pantelis Georgiou

We show that a multi-walled carbon nanotube film can be used as the sensing element of a low-cost sensor for the alcoholic concentration in liquid solutions. To this purpose, we investigate the electrical resistance of the film as a…

Mesoscale and Nanoscale Physics · Physics 2020-08-25 C. Giordano , G. Filatrella , Maria Sarno , A. Di Bartolomeo

Dielectrophoresis can potentially be used as an efficient trapping tool in the fabrication of molecular devices. For nanoscale objects, however, the Brownian motion poses a challenge. We show that the use of carbon nanotube electrodes makes…

Directional detection of Dark Matter (DM) particles could be accomplished by studying either ion or electron recoils in large arrays of parallel carbon nanotubes. For instance, a MeV mass DM particle could scatter off a lattice electron,…

Instrumentation and Detectors · Physics 2020-05-20 G Cavoto , M G Betti , C Mariani , F Pandolfi , A D Polosa , I Rago , A Ruocco

The ability to tune the thermal resistance of carbon nanotube mechanical supports from insulating to conducting could permit the next generation of thermal management devices. Here, we demonstrate fabrication techniques for carbon nanotube…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Kamal H. Baloch , Norvik Voskanian , John Cumings

We review our recent modelling work of carbon nanotubes as potential candidates for heat dissipation in microelectronics cooling. In the first part, we analyze the impact of nanotube defects on their thermal transport properties. In the…

Mesoscale and Nanoscale Physics · Physics 2013-09-27 Alejandro Pérez Paz , Juan María García-Lastra , Troels Markussen , Kristian Sommer Thygesen , Angel Rubio

This paper reports on the development of a novel CMOS device employing lead-sensing bacteria to assay lead in drinking water. The objective of the PlomBOX project is to develop a low-cost sensor ({\pounds}10) which can expedite access to…

We demonstrate an optically active nanotube-hybrid material by functionalizing single-wall nanotubes with an azo-based chromophore. Upon UV illumination, the conjugated chromophore undergoes a cis-trans isomerization leading to a charge…

Materials Science · Physics 2009-11-13 J. M. Simmons , I. In , V. E. Campbell , T. J. Mark , F. Leonard , P. Gopalan , M. A. Eriksson

Multiwalled carbon nanotubes are shown to be ballistic conductors at room temperature, with mean free paths of the order of tens of microns. These experiments follow and extend the original experiments by Frank et al (Science, 280 1744…

Materials Science · Physics 2007-05-23 Philippe Poncharal , Claire Berger , Yan Yi , Z. L. Wang , Walt A. de Heer

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…

Biological Physics · Physics 2008-02-14 Xihua Wang , Yu Chen , Katherine A. Gibney , Shyamsunder Erramilli , Pritiraj Mohanty

Carbon nanotubes have emerged as a possible new material for electronic applications. They show promising characteristics for transistors as well as for interconnects. Here we review their basic properties and focus on the status of…

Materials Science · Physics 2007-05-23 Franz Kreupl , Andrew P. Graham , Maik Liebau , Georg S. Duesberg , Robert Seidel , Eugen Unger

We use elastomeric polydimethylsiloxane substrates to strain single-walled carbon nanotubes and modulate their electronic properties, with the aim of developing flexible materials that can sense local strain. We demonstrate micron-scale…

Materials Science · Physics 2009-11-11 H. Maune , M. Bockrath

Theory of the remote Coulomb impurity scattering in single--wall carbon nanotubes is developed within one--electron approximation. Boltzmann equation is solved within drift--diffusion model to obtain the tube conductivity. The conductivity…

Materials Science · Physics 2021-07-02 Alexey G. Petrov , Slava V. Rotkin

The interaction and tunneling conductance between oppositely located ends of coaxial carbon nanotubes are studied by the example of two (11,11) nanotubes with open ends terminated by hydrogen atoms. The Green function formalism is applied…

Mesoscale and Nanoscale Physics · Physics 2014-06-16 A. M. Popov , I. V. Lebedeva , A. A. Knizhnik , Yu. E. Lozovik , N. A. Poklonski , A. I. Siahlo , S. A. Vyrko , S. V. Ratkevich

In this paper, a carbon nanotube (CNT) based single-ion detector is proposed and its performance is evaluated with atomistic quantum transport models. The sensor can detect any ion type without molecule-specific functionalization and allows…

Applied Physics · Physics 2026-02-03 Namita Narendra , Tillmann Kubis

We use computational screening to systematically investigate the use of transition metal doped carbon nanotubes for chemical gas sensing. For a set of relevant target molecules (CO, NH3, H2S) and the main components of air (N2, O2, H2O), we…

Mesoscale and Nanoscale Physics · Physics 2010-06-28 J. M. García-Lastra , D. J. Mowbray , K. S. Thygesen , A. Rubio , K. W. Jacobsen

We study the conductance of carbon nanotube wires in the presence of disorder, in the limit of phase coherent transport. For this purpose, we have developed a simple numerical procedure to compute transmission through carbon nanotubes and…

Condensed Matter · Physics 2009-10-31 M. P. Anantram , T. R. Govindan

We show that carbon nanotube transistors operate as unconventional "Schottky barrier transistors", in which transistor action occurs primarily by varying the contact resistance rather than the channel conductance. Transistor characteristics…

Materials Science · Physics 2016-08-31 S. Heinze , J. Tersoff , R. Martel , V. Derycke , J. Appenzeller , Ph. Avouris

Various proteins adsorb spontaneously on the sidewalls of acid-oxidized single-walled carbon nanotubes. This simple non-specific binding scheme can be used to afford non-covalent protein-nanotube conjugates. The proteins are found to be…

Other Condensed Matter · Physics 2007-05-23 Nadine Wong Shi Kam , Hongjie Dai