Feasibility of optical waveguide immunosensors for pesticide detection: physical aspects

Schipper, E.F. and Kooyman, R.P.H. and Heideman, R.G. and Greve, J. (1995) Feasibility of optical waveguide immunosensors for pesticide detection: physical aspects. Sensors and Actuators B: Chemical, 24-25 (1-3). pp. 90-93. ISSN 0925-4005

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Abstract:	The feasibility of detecting small molecules such as pesticides using optical evanescent-wave sensors is discussed with emphasis on the Mach-Zehnder sensor and a newly developed sensor called a ‘critical’ sensor. For direct detection of an estimated average pesticide layer growth of 2×10−4 nm, the sensitivity of the Mach-Zehnder sensor is almost adequate (1×10−3 nm within one hour), whereas that of the ‘critical’ sensor (2×10−2 nm) is not sufficient. However, the simplicity of this latter sensor is very attractive. Results of α-hSA/hSA immunoreaction experiments obtained with this last type of sensor are presented.
Item Type:	Article
Copyright:	© 1995 Elsevier Science
Faculty:	Science and Technology (TNW)
Research Group:	Nano-Biophysics (NBP)
Link to this item:	http://purl.utwente.nl/publications/24915
Official URL:	http://dx.doi.org/10.1016/0925-4005(95)85019-8
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