The University of Southampton
University of Southampton Institutional Repository

AC and phase sensing of nanowires for biosensing

AC and phase sensing of nanowires for biosensing
AC and phase sensing of nanowires for biosensing
Silicon nanowires are label-free sensors that allow real-time measurements. They are economical and pave the road for point-of-care applications but require complex readout and skilled personnel. We propose a new model and technique for sensing nanowire sensors using alternating currents (AC) to capture both magnitude and phase information from the sensor. This approach combines the advantages of complex impedance spectroscopy with the noise reduction performances of lock-in techniques. Experimental results show how modifications of the sensors with different surface chemistries lead to the same direct-current (DC) response but can be discerned using the AC approach.
0265-928X
1-14
Crescentini, Marco
568e8046-74bd-449f-8794-889643147059
Rossi, Michele
e09fb28f-913c-4204-b350-e462d2f6440f
Ashburn, Peter
68cef6b7-205b-47aa-9efb-f1f09f5c1038
Lombardini, Marta
c8653079-b66c-49ca-ac59-93c3d17b26a4
Sangiorgi, Enrico
0c75660c-f20c-42ae-bacc-5cae33fd00cf
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Tartagni, Marco
665c139f-e76b-49e2-8cf7-199478891464
Crescentini, Marco
568e8046-74bd-449f-8794-889643147059
Rossi, Michele
e09fb28f-913c-4204-b350-e462d2f6440f
Ashburn, Peter
68cef6b7-205b-47aa-9efb-f1f09f5c1038
Lombardini, Marta
c8653079-b66c-49ca-ac59-93c3d17b26a4
Sangiorgi, Enrico
0c75660c-f20c-42ae-bacc-5cae33fd00cf
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Tartagni, Marco
665c139f-e76b-49e2-8cf7-199478891464

Crescentini, Marco, Rossi, Michele, Ashburn, Peter, Lombardini, Marta, Sangiorgi, Enrico, Morgan, Hywel and Tartagni, Marco (2016) AC and phase sensing of nanowires for biosensing. Biosensors, 6 (2), 1-14. (doi:10.3390/bios6020015).

Record type: Article

Abstract

Silicon nanowires are label-free sensors that allow real-time measurements. They are economical and pave the road for point-of-care applications but require complex readout and skilled personnel. We propose a new model and technique for sensing nanowire sensors using alternating currents (AC) to capture both magnitude and phase information from the sensor. This approach combines the advantages of complex impedance spectroscopy with the noise reduction performances of lock-in techniques. Experimental results show how modifications of the sensors with different surface chemistries lead to the same direct-current (DC) response but can be discerned using the AC approach.

Text
__soton.ac.uk_UDE_PersonalFiles_Users_skr1c15_mydocuments_eprints_Hywel Morgan_AC and Phase Sensing of Nanowires for Biosensing.pdf - Version of Record
Available under License Creative Commons Attribution.
Download (2MB)

More information

Accepted/In Press date: 9 April 2016
e-pub ahead of print date: 19 April 2016
Published date: 19 April 2016
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 394524
URI: https://eprints.soton.ac.uk/id/eprint/394524
ISSN: 0265-928X
PURE UUID: 32dda2fb-76b0-45ca-80ae-5784ecb57c9b
ORCID for Hywel Morgan: ORCID iD orcid.org/0000-0003-4850-5676

Catalogue record

Date deposited: 19 May 2016 15:52
Last modified: 08 Oct 2019 00:47

Export record

Altmetrics

Contributors

Author: Marco Crescentini
Author: Michele Rossi
Author: Peter Ashburn
Author: Marta Lombardini
Author: Enrico Sangiorgi
Author: Hywel Morgan ORCID iD
Author: Marco Tartagni

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×