Solidly Mounted Resonators with Carbon Nanotube Electrodes for Biosensing Applications

García-Gancedo, Luis and Iborra Grau, Enrique and Clement Lorenzo, Marta and Olivares Roza, Jimena and Zhu, Z. and Flewitt, A.J. and Milne, W.I. and Ashley, G.M. and Luo, J.K. and Zhao, X.B. and Lu, J.R. (2011). Solidly Mounted Resonators with Carbon Nanotube Electrodes for Biosensing Applications. In: "2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum, FCS", 01/05/2011 - 05/05/2011, San Francisco, EE. UU.. ISBN 978-1-61284-111-3. pp. 1-5. https://doi.org/10.1109/FCS.2011.5977728.

Description

Title: Solidly Mounted Resonators with Carbon Nanotube Electrodes for Biosensing Applications
Author/s:
  • García-Gancedo, Luis
  • Iborra Grau, Enrique
  • Clement Lorenzo, Marta
  • Olivares Roza, Jimena
  • Zhu, Z.
  • Flewitt, A.J.
  • Milne, W.I.
  • Ashley, G.M.
  • Luo, J.K.
  • Zhao, X.B.
  • Lu, J.R.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum, FCS
Event Dates: 01/05/2011 - 05/05/2011
Event Location: San Francisco, EE. UU.
Title of Book: Proceedings of the 2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum, FCS
Date: 2011
ISBN: 978-1-61284-111-3
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Electrónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The work reported here shows a direct experimental comparison of the sensitivities of AlN solidly mounted resonators (SMR)-based biosensors fabricated with standard metal electrodes and with carbon nanotube electrodes. SMRs resonating at frequencies around 1.75 GHz have been fabricated, some devices using a thin film of multi-wall carbon nanotubes (CNTs) as the top electrode material and some identical devices using a chromium/gold electrode. Protein solutions with different concentrations were loaded on the top of the resonators and their responses to mass-load from physically adsorbed coatings were investigated. Results show that resonators using CNTs as the top electrode material exhibited higher frequency change for a given load due to the higher active surface area of a thin film of interconnecting CNTs compared to that of a metal thin film electrode and hence exhibited greater mass loading sensitivity. It is therefore concluded that the use of CNT electrodes on resonators for their use as gravimetric biosensors is viable and worthwhile.

More information

Item ID: 12626
DC Identifier: http://oa.upm.es/12626/
OAI Identifier: oai:oa.upm.es:12626
DOI: 10.1109/FCS.2011.5977728
Official URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5959913
Deposited by: Memoria Investigacion
Deposited on: 02 Aug 2012 16:44
Last Modified: 21 Apr 2016 11:53
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