IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v1y2010i1d10.1038_ncomms1141.html
   My bibliography  Save this article

Single-molecule identification via electric current noise

Author

Listed:
  • Makusu Tsutsui

    (The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki)

  • Masateru Taniguchi

    (The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki
    PRESTO, Japan Science and Technology Agency, Honcho, Kawaguchi)

  • Tomoji Kawai

    (The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki)

Abstract

Label-free and real-time single-molecule detection may aid the development of high-throughput biosensing platforms. Molecular fluctuations are a source of noise that often hinders single-molecule identification by obscuring the fine details of molecular identity. In this study, we report molecular identification through direct observation of quantum-fluctuation-induced inelastic noise in single organic molecules. We investigated current fluctuations flowing through a single molecule that is chemically connected to two electrodes. We found increased current oscillations synchronous to electric field excitations of characteristic molecular vibrational modes that contribute to inelastic electron tunnelling. This finding demonstrates a large contribution of charge interaction with nuclear dynamics on noise properties of single-molecule bridges and suggests a potential use of inelastic noise as a valuable molecular signature for single-molecule identification.

Suggested Citation

  • Makusu Tsutsui & Masateru Taniguchi & Tomoji Kawai, 2010. "Single-molecule identification via electric current noise," Nature Communications, Nature, vol. 1(1), pages 1-5, December.
    • Handle: RePEc:nat:natcom:v:1:y:2010:i:1:d:10.1038_ncomms1141
    DOI: 10.1038/ncomms1141
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms1141
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms1141?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:1:y:2010:i:1:d:10.1038_ncomms1141. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.