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A microwave dielectric biosensor based on suspended distributed MEMS transmission lines

Li, L. and Uttamchandani, D.G. and , Scottish Funding Council under Glasgow Research Partnership in Engineering Scheme (Funder) and , Royal Society Research (Funder) (2009) A microwave dielectric biosensor based on suspended distributed MEMS transmission lines. IEEE Sensors Journal, 9 (12). pp. 1825-1830. ISSN 1530-437X

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    Abstract

    Design and characterization of a miniature microwave dielectric biosensor based on distributed microelectromechanical systems (MEMS) transmission lines (DMTL) is reported in this paper. The biosensor has been realized by bonding the DMTL device with an acrylic fluidic channel. In order to demonstrate the sensing mechanism, the sensor is used to detect the small variation of the concentration of aqueous glucose solutions by measuring the electromagnetic resonant frequency shift of the device. It is observed from the results that the second notch of the reflection coefficient (S-11) varies from 7.66 to 7.93 GHz and the third notch of the reflection coefficient varies from 15.81 to 15.24 GHz when the concentration of the glucose solution ranges from 0 to 347 mg/ml, which indicates that higher order notches have higher sensitivities if looking at the absolute change in frequency.

    Item type: Article
    ID code: 14515
    Keywords: biosensor, distributed microelectromechanical systems, MEMS, transmission lines, DMTL, glucose, Electrical engineering. Electronics Nuclear engineering, Instrumentation, Electrical and Electronic Engineering
    Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
    Department: Faculty of Engineering > Electronic and Electrical Engineering
    Related URLs:
      Depositing user: Strathprints Administrator
      Date Deposited: 22 Jun 2010 09:55
      Last modified: 05 Sep 2014 12:37
      URI: http://strathprints.strath.ac.uk/id/eprint/14515

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