TITLE

Ultrasensitive nanoelectromechanical mass detection

AUTHOR(S)
Ekinci, K. L.; Huang, X. M. H.; Roukes, M. L.
PUB. DATE
May 2004
SOURCE
Applied Physics Letters;5/31/2004, Vol. 84 Issue 22, p4469
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We describe the application of nanoelectromechanical systems (NEMS) to ultrasensitive mass detection. In these experiments, a modulated flux of atoms was adsorbed upon the surface of a 32.8 MHz NEMS resonator within an ultrahigh-vacuum environment. The mass-induced resonance frequency shifts by these adsorbates were then measured to ascertain a mass sensitivity of 2.53×10-18 g. In these initial measurements, this sensitivity is limited by the noise in the NEMS displacement transducer; the ultimate limits of the technique are set by fundamental phase noise processes. Our results and analysis indicate that mass sensing of individual molecules will be realizable with optimized NEMS devices. © 2004 American Institute of Physics.
ACCESSION #
13154693

 

Related Articles

  • Nanoelectromechanical systems: Nanodevice motion at microwave frequencies. Henry Huang, Xue Ming; Zorman, Christian A.; Mehregany, Mehran; Roukes, Michael L. // Nature;1/30/2003, Vol. 421 Issue 6922, p496 

    It has been almost forgotten that the first computers envisaged by Charles Babbage in the early 1800s were mechanical and not electronic, but the development of high-frequency nanoelectromechanical systems is now promising a range of new applications, including sensitive mechanical charge...

  • Stand-Alone Interface Produces Displacement Readout. Boggs, Robert N. // Design News;5/17/93, Vol. 49 Issue 10, p113 

    The article features the programmable digital interface developed by engineers MTS Sensor Technologies. The interface produces BCD, binary, or gray-code output, and displacement readout for transducers. Its front panel handles user programming for resolution, length, scaling, and null...

  • Module lifts signal conditioning reliability.  // Environmental Engineering;Sep2008, Vol. 21 Issue 3, p15 

    The article offers information on the Universal Conditioning Module (UCM) launched by Penny & Giles to provide reliable signal conditioning for a wide range of analogue inductive transducer types. The UCM can drive four, five or six wire differential linear variable displacement transducers...

  • Investigation of Time Reversal Techniques to Enhance Flaw Detectability. Kim, Hak-Joon; Friedl, Jon H.; Thompson, R. Bruce // AIP Conference Proceedings;2005, Vol. 760 Issue 1, p1966 

    Phased array transducers are often used to attain high focusing performance. In recent years, time reversal is claimed to be a very robust technique to focus through inhomogeneous medium, using the phased array transducers, as compared to conventional focusing techniques. In this paper, the...

  • Real-time Focused Ultrasound Surgery (FUS) Monitoring Using Harmonic Motion Imaging (HMI). Maleke, Caroline; Konofagou, Elisa E. // AIP Conference Proceedings;4/14/2009, Vol. 1113 Issue 1, p236 

    Monitoring changes in tissue mechanical properties to optimally control thermal exposure is important in thermal therapies. The amplitude-modulated (AM) harmonic motion imaging (HMI) for focused ultrasound (HMIFU) technique is a radiation force technique, which has the capability of tracking...

  • A piezoelectric multilayer-stacked hybrid actuation/transduction system. Tian-Bing Xu; Xiaoning Jiang; Ji Su // Applied Physics Letters;6/13/2011, Vol. 98 Issue 24, p243503 

    A piezoelectric multilayer-stacked hybrid actuation/transduction system (stacked-HYBATS) is reported in this letter. It uses synergetic contributions from positive-strain and negative-strain piezoelectric multilayer-stacks to give displacements of about 3.5 times those of the same-sized...

  • Compact LDT finds niche between others.  // Motion System Hydraulics & Pneumatics;Mar2003, Vol. 56 Issue 3, p24 

    Features the BIL magneto-inductive sensor from the Balluff Inc. Use of a non-contact, magneto-inductive technology to sense the location of a magnet; Effect of size on the effectiveness of the equipment.

  • Micromachined silicon tunnel sensor for motion detection. Kenny, T.W.; Waltman, S.B.; Reynolds, J.K.; Kaiser, W.J. // Applied Physics Letters;1/7/1991, Vol. 58 Issue 1, p100 

    Reports on the use of the extreme sensitivity of electron tunneling to variations in electrode separation to construct a novel, compact displacement transducer. Use of electrostatic forces to control the separation between the tunneling electrodes; Elimination of the need for piezoelectric...

  • `Rubbery' transducer.  // R&D Magazine;Sep95, Vol. 37 Issue 10, p74 

    Introduces the Rubbery Ruler, an elastic displacement transducer which was developed by researchers at the University of Melbourne, Parkville, Australia. Features of the Rubbery Ruler; Description of the transducer; Functions of the transducer; Identification of the research team members.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics