Fractal analysis for the development of chemical sensors for environmental monitoring

Ajit Sadana; Tuan Vo-Dinh

doi:10.1117/12.224135

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9 October 1995 Fractal analysis for the development of chemical sensors for environmental monitoring

Ajit Sadana, Tuan Vo-Dinh

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Proceedings Volume 2504, Environmental Monitoring and Hazardous Waste Site Remediation; (1995) https://doi.org/10.1117/12.224135
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

A fractal analysis is presented for the binding of pyrene in solution to beta-cyclodextrin attached to a fiberoptic chemical sensor. The specific (k₁) and the non-specific binding rate (k_ns) coefficients and the fractal dimension, D_f (specific binding case only) both tend to increase as the pyrene concentration in solution increases from 12.4 to 124 ng/mL. Predictive relations for the binding rate coefficient (specific as well as non-specific binding) and for D_f (specific binding case only) as a function of pyrene concentration are provided. These relations fit the calculated k₁ and D_f values in the pyrene concentration range reasonably well. The fractal analysis provides novel physical insights into the reactions occurring on the fiberoptic chemical surface and should assist in the design of fiberoptic chemical sensors.

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Ajit Sadana and Tuan Vo-Dinh "Fractal analysis for the development of chemical sensors for environmental monitoring", Proc. SPIE 2504, Environmental Monitoring and Hazardous Waste Site Remediation, (9 October 1995); https://doi.org/10.1117/12.224135

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