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Adsorption–desorption noise in nanowire FET biosensors

Authorized Users Only
2012
Authors
Radulović, Katarina
Jokić, Ivana
Frantlović, Miloš
Đurić, Zoran G.
Conference object (Published version)
Metadata
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Abstract
The adsorption-desorption (AD) noise in nanowire FET biosensors is analyzed, which manifests itself in the form of gate voltage fluctuations resulting from the fluctuations of the number of adsorbed particles. The derived theoretical model of the fluctuations takes into account the mass transfer effects. The numerical calculations show that when the mass transfer is slow, the low-frequency amplitude and the corner frequency of the Lorentzian AD noise spectrum obtained by derived expressions are significantly different compared to the same parameters predicted by the model that neglects mass transport effects. The presented analysis enables good estimation of these parameters from the measured noise spectrum, which is important because they are used as the source of information about the analyte concentration and the kinetics of biomolecular interactions.
Keywords:
adsorption–desorption / FET biosensors / noise
Source:
2012 28th International Conference on Microelectronics (MIEL), 2012, 203-206
Publisher:
  • IEEE
Projects:
  • Micro- Nanosystems and Sensors for Electric Power and Process Industry and Environmental Protection (RS-32008)

DOI: 10.1109/MIEL.2012.6222834

ISBN: 9781467302371

Scopus: 2-s2.0-84864251999
[ Google Scholar ]
2
URI
http://dais.sanu.ac.rs/123456789/450
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - CONF
AU  - Radulović, Katarina
AU  - Jokić, Ivana
AU  - Frantlović, Miloš
AU  - Đurić, Zoran G.
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/450
AB  - The adsorption-desorption (AD) noise in nanowire FET biosensors is analyzed, which manifests itself in the form of gate voltage fluctuations resulting from the fluctuations of the number of adsorbed particles. The derived theoretical model of the fluctuations takes into account the mass transfer effects. The numerical calculations show that when the mass transfer is slow, the low-frequency amplitude and the corner frequency of the Lorentzian AD noise spectrum obtained by derived expressions are significantly different compared to the same parameters predicted by the model that neglects mass transport effects. The presented analysis enables good estimation of these parameters from the measured noise spectrum, which is important because they are used as the source of information about the analyte concentration and the kinetics of biomolecular interactions.
PB  - IEEE
C3  - 2012 28th International Conference on Microelectronics (MIEL)
T1  - Adsorption–desorption noise in nanowire FET biosensors
SP  - 203
EP  - 206
DO  - 10.1109/MIEL.2012.6222834
ER  - 
@conference{
author = "Radulović, Katarina and Jokić, Ivana and Frantlović, Miloš and Đurić, Zoran G.",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/450",
abstract = "The adsorption-desorption (AD) noise in nanowire FET biosensors is analyzed, which manifests itself in the form of gate voltage fluctuations resulting from the fluctuations of the number of adsorbed particles. The derived theoretical model of the fluctuations takes into account the mass transfer effects. The numerical calculations show that when the mass transfer is slow, the low-frequency amplitude and the corner frequency of the Lorentzian AD noise spectrum obtained by derived expressions are significantly different compared to the same parameters predicted by the model that neglects mass transport effects. The presented analysis enables good estimation of these parameters from the measured noise spectrum, which is important because they are used as the source of information about the analyte concentration and the kinetics of biomolecular interactions.",
publisher = "IEEE",
journal = "2012 28th International Conference on Microelectronics (MIEL)",
title = "Adsorption–desorption noise in nanowire FET biosensors",
pages = "203-206",
doi = "10.1109/MIEL.2012.6222834"
}
Radulović K, Jokić I, Frantlović M, Đurić ZG. Adsorption–desorption noise in nanowire FET biosensors. 2012 28th International Conference on Microelectronics (MIEL). 2012;:203-206
Radulović, K., Jokić, I., Frantlović, M.,& Đurić, Z. G. (2012). Adsorption–desorption noise in nanowire FET biosensors.
2012 28th International Conference on Microelectronics (MIEL)IEEE., null, 203-206. 
https://doi.org/10.1109/MIEL.2012.6222834
Radulović Katarina, Jokić Ivana, Frantlović Miloš, Đurić Zoran G., "Adsorption–desorption noise in nanowire FET biosensors" null (2012):203-206,
https://doi.org/10.1109/MIEL.2012.6222834 .

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