Ultrahigh sensitivity slot-waveguide biosensor on a highly integrated chip for simultaneous diagnosis of multiple diseases

Daniel Hill*

*Corresponding author for this work

Research output: Contribution to journalConference article

Abstract

SABIO is a multidisciplinary project involving the emerging fields of micro-nano technology, photonics, fluidics and bio-chemistry, targeting a contribution to the development of intelligent diagnostic equipment through the demonstration of a compact polymer based and silicon-based CMOS-compatible micro-nano system. It integrates optical biosensors for label-free biomolecular recognition based on a novel photonic structure named slot-waveguide with immobilised biomolecular receptors on its surface. The slot-waveguides provide high optical intensity in a subwavelength-size low refractive index region (slot-region) sandwiched between two high refractive index strips (rails) [Almeida, V., et al., 2004] leading to an enhanced interaction between the optical probe and biomolecular complexes (antibody-antigen). As such a biosensor is predicted to exhibit a surface concentration detection-limit lower than 1 pg/mm2, state-of-the-art in label-free integrated optical biosensors, as well as the possibility of multiplexed assay, which, together with reduced reaction volumes, leads to the ability to perform rapid multi-analyte sensing and comprehensive tests. This offers the further advantageous possibility of assaying several parameters simultaneously and consequently, statistical analysis of these results can potentially increase the reliability and reduce the measurement uncertainty of a diagnostic over single-parameter assays. In addition, the SABIO micro-nano system device applied to its novel protein-based diagnostic technology has the potential to be fast and easy to use, making routine screening or monitoring of diseases more cost-effective.
Original languageEnglish
Pages (from-to)52-53
Number of pages2
Journal2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics
DOIs
Publication statusPublished - 26 Aug 2008
Event2008 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OPT MEMS - Freiburg, Germany
Duration: 11 Aug 200814 Aug 2008

Fingerprint

Biosensors
Waveguides
Photonics
Labels
Assays
Refractive index
Fluidics
Antigens
Nanotechnology
Antibodies
Rails
Statistical methods
Screening
Demonstrations
Proteins
Silicon
Monitoring
Polymers
Costs

Cite this

Hill, Daniel. / Ultrahigh sensitivity slot-waveguide biosensor on a highly integrated chip for simultaneous diagnosis of multiple diseases. In: 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics. 2008 ; pp. 52-53.
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Ultrahigh sensitivity slot-waveguide biosensor on a highly integrated chip for simultaneous diagnosis of multiple diseases. / Hill, Daniel.

In: 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics, 26.08.2008, p. 52-53.

Research output: Contribution to journalConference article

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