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Proceedings Paper

Design and process development of a photonic crystal polymer biosensor for point-of-care diagnostics
Author(s): F. Dortu; H. Egger; K. Kolari; T. Haatainen; P. Furjes; Z. Fekete; D. Bernier; G. Sharp; B. Lahiri; S. Kurunczi; J.-C. Sanchez; N. Turck; P. Petrik; D. Patko; R. Horvath; S. Eiden; T. Aalto; S. Watts; N. P. Johnson; R. M. De La Rue; D. Giannone
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Paper Abstract

In this work, we report advances in the fabrication and anticipated performance of a polymer biosensor photonic chip developed in the European Union project P3SENS (FP7-ICT4-248304). Due to the low cost requirements of point-ofcare applications, the photonic chip is fabricated from nanocomposite polymeric materials, using highly scalable nanoimprint- lithography (NIL). A suitable microfluidic structure transporting the analyte solutions to the sensor area is also fabricated in polymer and adequately bonded to the photonic chip. We first discuss the design and the simulated performance of a high-Q resonant cavity photonic crystal sensor made of a high refractive index polyimide core waveguide on a low index polymer cladding. We then report the advances in doped and undoped polymer thin film processing and characterization for fabricating the photonic sensor chip. Finally the development of the microfluidic chip is presented in details, including the characterisation of the fluidic behaviour, the technological and material aspects of the 3D polymer structuring and the stable adhesion strategies for bonding the fluidic and the photonic chips, with regards to the constraints imposed by the bioreceptors supposedly already present on the sensors.

Paper Details

Date Published: 9 June 2011
PDF: 17 pages
Proc. SPIE 8087, Clinical and Biomedical Spectroscopy and Imaging II, 80870D (9 June 2011); doi: 10.1117/12.889420
Show Author Affiliations
F. Dortu, Multitel A.S.B.L. (Belgium)
H. Egger, Bayer Technology Services GmbH (Germany)
K. Kolari, VTT Technical Research Ctr. of Finland (Finland)
T. Haatainen, VTT Technical Research Ctr. of Finland (Finland)
P. Furjes, Research Institute for Technical Physics and Materials Science (Hungary)
Z. Fekete, Research Institute for Technical Physics and Materials Science (Hungary)
D. Bernier, Multitel A.S.B.L. (Belgium)
G. Sharp, Univ. of Glasgow (United Kingdom)
B. Lahiri, Univ. of Glasgow (United Kingdom)
S. Kurunczi, Research Institute for Technical Physics and Materials Science (Hungary)
J.-C. Sanchez, Univ. of Geneva (Switzerland)
N. Turck, Univ. of Geneva (Switzerland)
P. Petrik, Research Institute for Technical Physics and Materials Science (Hungary)
D. Patko, Research Institute for Technical Physics and Materials Science (Hungary)
R. Horvath, Research Institute for Technical Physics and Materials Science (Hungary)
S. Eiden, Bayer Technology Services GmbH (Germany)
T. Aalto, VTT Technical Research Ctr. of Finland (Finland)
S. Watts, Stratophase Ltd. (United Kingdom)
N. P. Johnson, Univ. of Glasgow (United Kingdom)
R. M. De La Rue, Univ. of Glasgow (United Kingdom)
Univ. of Malaya (Malaysia)
D. Giannone, Multitel A.S.B.L. (Belgium)


Published in SPIE Proceedings Vol. 8087:
Clinical and Biomedical Spectroscopy and Imaging II
Nirmala Ramanujam; Jürgen Popp, Editor(s)

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