• DocumentCode
    1386619
  • Title

    Love-wave biosensors using cross-linked polymer waveguides on LiTaO3 substrates

  • Author

    Bender, Florian ; Cernosek, R.W. ; Josse, Fabien

  • Author_Institution
    Dept. of Microsensor R&D, Sandia Nat. Labs., Albuquerque, NM, USA
  • Volume
    36
  • Issue
    19
  • fYear
    2000
  • Firstpage
    1672
  • Lastpage
    1673
  • Abstract
    The design and performance of Love-wave sensors using crosslinked poly(methyl methacrylate) waveguides of thicknesses of 0.3 to 3.21 μm on LiTaO3 substrates are described. It is found that this layer-substrate combination provides sufficient waveguidance and electrical isolation of the interdigital transducers from the liquid environment to achieve low acoustic loss and distortion. In biosensing experiments, mass sensitivity up to 1420 Hz(ng/mm2) is demonstrated.
  • Keywords
    biosensors; 0.3 to 3.2 mum; LiTaO3; LiTaO3 substrates; Love-wave biosensors; acoustic loss; cross-linked polymer waveguides; electrical isolation; interdigital transducers; mass sensitivity; poly(methyl methacrylate);
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • Filename
    871137