A calibration method for nanowire biosensors to suppress device-to-device variation

Fumiaki N. Ishikawa, Marco Curreli, Hsiao Kang Chang, Po Chiang Chen, Rui Zhang, Richard J Cote, Mark E. Thompson, Chongwu Zhou

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

Nanowire/nanotube biosensors have stimulated significant interest; however, the inevitable device-to-device variation in the biosensor performance remains a great challenge. We have developed an analytical method to calibrate nanowire biosensor responses that can suppress the device-to-device variation in sensing response significantly. The method is based on our discovery of a strong correlation between the biosensor gate dependence (dI ds/dV g) and the absolute response (absolute change in current, ΔI). In 2O 3 nanowire-based biosensors for streptavidin detection were used as the model system. Studying the liquid gate effect and ionic concentration dependence of strepavidin sensing indicates that electrostatic interaction is the dominant mechanism for sensing response. Based on this sensing mechanism and transistor physics, a linear correlation between the absolute sensor response (ΔI) and the gate dependence (dI ds/dV g) is predicted and confirmed experimentally. Using this correlation, a calibration method was developed where the absolute response is divided by dI ds/dV g for each device, and the calibrated responses from different devices behaved almost identically. Compared to the common normalization method (normalization of the conductance/ resistance/current by the initial value), this calibration method was proven advantageous using a conventional transistor model. The method presented here substantially suppresses device-to-device variation, allowing the use of nanosensors in large arrays.

Original languageEnglish
Pages (from-to)3969-3976
Number of pages8
JournalACS Nano
Volume3
Issue number12
DOIs
StatePublished - Dec 22 2009
Externally publishedYes

Fingerprint

bioinstrumentation
Biosensors
Nanowires
nanowires
Calibration
Streptavidin
Transistors
Nanosensors
Coulomb interactions
transistors
Nanotubes
Physics
Sensors
Liquids
nanotubes
electrostatics
physics
sensors
liquids

Keywords

  • Calibration method
  • Nanobiosensor
  • Nanowire
  • Sensing mechanism

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Ishikawa, F. N., Curreli, M., Chang, H. K., Chen, P. C., Zhang, R., Cote, R. J., ... Zhou, C. (2009). A calibration method for nanowire biosensors to suppress device-to-device variation. ACS Nano, 3(12), 3969-3976. https://doi.org/10.1021/nn9011384

A calibration method for nanowire biosensors to suppress device-to-device variation. / Ishikawa, Fumiaki N.; Curreli, Marco; Chang, Hsiao Kang; Chen, Po Chiang; Zhang, Rui; Cote, Richard J; Thompson, Mark E.; Zhou, Chongwu.

In: ACS Nano, Vol. 3, No. 12, 22.12.2009, p. 3969-3976.

Research output: Contribution to journalArticle

Ishikawa, FN, Curreli, M, Chang, HK, Chen, PC, Zhang, R, Cote, RJ, Thompson, ME & Zhou, C 2009, 'A calibration method for nanowire biosensors to suppress device-to-device variation', ACS Nano, vol. 3, no. 12, pp. 3969-3976. https://doi.org/10.1021/nn9011384
Ishikawa FN, Curreli M, Chang HK, Chen PC, Zhang R, Cote RJ et al. A calibration method for nanowire biosensors to suppress device-to-device variation. ACS Nano. 2009 Dec 22;3(12):3969-3976. https://doi.org/10.1021/nn9011384
Ishikawa, Fumiaki N. ; Curreli, Marco ; Chang, Hsiao Kang ; Chen, Po Chiang ; Zhang, Rui ; Cote, Richard J ; Thompson, Mark E. ; Zhou, Chongwu. / A calibration method for nanowire biosensors to suppress device-to-device variation. In: ACS Nano. 2009 ; Vol. 3, No. 12. pp. 3969-3976.
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