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Proceedings Article

Optical fibre cantilever sensor for biological application

[+] Author Affiliations
J. Li, Y. X. Zhou, G. Patterson, W. M. Shu, R. R. J. Maier, R. Fowler, D. P. Hand, W. N. MacPherson

Heriot-Watt Univ. (United Kingdom)

Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575I (June 2, 2014); doi:10.1117/12.2059869
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From Conference Volume 9157

  • 23rd International Conference on Optical Fibre Sensors
  • José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José L. Santos
  • Santander, Spain | June 02, 2014

abstract

Micro-cantilever sensors have shown great promise in a wide range of application are as including chemical and biological sensing. However, many of these devices are based upon a sensor ‘chip’ that requires careful alignment between the cantilever and the read-out system, which can be challenging. Furthermore, optical interrogation typically involves a bulky free-space system. Optical fibre addressed cantilevers have been reported previously in the literature and in this paper we propose techniques to design and fabricate polymer micro-cantilevers for attachment onto the end of standard single mode fibres using laser machining. Low-cost optical sources and a fibre coupled spectrometer are employed to monitor the cantilever deflection and therefore observe biological binding between a species of interest and an activated cantilever. Proof-of-concept experiments show that the sensor is capable of detecting pathogen concentration with down to a level of 105cfu/ml. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

J. Li ; Y. X. Zhou ; G. Patterson ; W. M. Shu ; R. R. J. Maier, et al.
" Optical fibre cantilever sensor for biological application ", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575I (June 2, 2014); doi:10.1117/12.2059869; http://dx.doi.org/10.1117/12.2059869


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