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High Sensitivity Photonic Crystal Biosensor Incorporating Nanorod Structures for Enhanced Surface Area

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Abstract

We report efforts at enhancement of the surface area of a photonic crystal biosensor through incorporation of a porous titanium dioxide film into the device. The film possessing the structure of nanorods is deposited by the glancing angle deposition technique. Results for detection of polymer films, large proteins and small molecules indicate up to a four-fold enhancement of detected adsorbed mass density for high surface area sensors, compared with sensors without the high surface area coating.

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Authors and Affiliations

  1. Nano Sensors Group, University of Illinois at Urbana - Champaign, 208 North Wright Street, Urbana, IL, 61801, USA

    Wei Zhang, Nikhil Ganesh, Ian D. Block & Brian T. Cunningham

Authors
  1. Wei Zhang
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  2. Nikhil Ganesh
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  3. Ian D. Block
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  4. Brian T. Cunningham
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Zhang, W., Ganesh, N., Block, I.D. et al. High Sensitivity Photonic Crystal Biosensor Incorporating Nanorod Structures for Enhanced Surface Area. MRS Online Proceedings Library 1010, 610 (2007). https://doi.org/10.1557/PROC-1010-V06-10

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  • DOI: https://doi.org/10.1557/PROC-1010-V06-10

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