Ultrasensitive nanosensors based on electronic effects in nanoscale structures

Christian Leiterer; Steffen Berg; Thomas Schneider; Norbert Jahr; Ondrej Stranik; Gerald Broenstrup; Silke Christiansen; Andrea Csaki; Wolfgang Fritzsche

doi:10.1117/12.886577

3 May 2011 Ultrasensitive nanosensors based on electronic effects in nanoscale structures

Christian Leiterer, Steffen Berg, Thomas Schneider, Norbert Jahr, Ondrej Stranik, Gerald Broenstrup, Silke Christiansen, Andrea Csaki, Wolfgang Fritzsche

Author Affiliations +

Proceedings Volume 8068, Bioelectronics, Biomedical, and Bioinspired Systems V; and Nanotechnology V; 806802 (2011) https://doi.org/10.1117/12.886577
Event: SPIE Microtechnologies, 2011, Prague, Czech Republic

Abstract

Charge carrier distribution changes in solid substrates induced by the presence of biomolecules have the potential as sensoric principle. For a high surface-to-bulk ratio as in the case of nanostructures, this effect can be used for highly sensitive bioanalytics. Plasmonic nanosensors represent one possible implementation: The resonance wavelength of the conductive electron oscillation under light irradiation is changed upon molecular binding at the structure surface. This change can be detected by spectroscopic means, even on a single nanoparticle level using microspectroscopy. Other examples are nanowires in electrodes gaps, either by metal nanoparticles arranged in a chain-like geometry or by rod-like semiconductor nanowires directly bridging the gap. Molecules binding at the surface will lead to changes in the electrical conductivity which can be easily converted into an electrical readout. The various geometries will be discussed and their sensoric potential for an electrical detection demonstrated.

Citation Download Citation

Christian Leiterer, Steffen Berg, Thomas Schneider, Norbert Jahr, Ondrej Stranik, Gerald Broenstrup, Silke Christiansen, Andrea Csaki, and Wolfgang Fritzsche "Ultrasensitive nanosensors based on electronic effects in nanoscale structures", Proc. SPIE 8068, Bioelectronics, Biomedical, and Bioinspired Systems V; and Nanotechnology V, 806802 (3 May 2011); https://doi.org/10.1117/12.886577

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Molecules

Sensors

Metals

Nanowires

Nanoparticles

Nanosensors

Plasmonics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years