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Endocrine disrupting compounds (EDCs) such as bisphenol A (BPA) and female hormone Estrone are especially
prevalent in surface and waste-waters in nano-molar concentrations and therefore, there is a need for sensitive analytical
device for their monitoring. We have designed a miniature, low cost and fast surface plasmon resonance (SPR) imaging
liquid sensor based on the angular interrogation using Kretschmann configuration with diverged incident monochromatic
light. During this paper we present a surface plasmon resonance imaging (SPRI) biosensor to detect EDCs such as BPA
and estrone. A pattern of SPR line which is dark intensity line on bright area was reflected at angles range depending on
the dielectric constant of the analye: Rabbit Anti-Estrone polyclonal IgG + Estrone 11-MUA attached to the silver or
non-specific sensing of BPA in water with nanoprecision. For analyzing the SPR signals we used an efficient detection
algorithm based on Radon Transform with less sensitivity to laser speckle noise and nonuniformity of the illumination.
Alina Karabchevsky,Lev Tsapovsky,Robert S. Marks, andIbrahim Abdulhalim
"Optical immunosensor for endocrine disruptor nanolayer detection by surface plasmon resonance imaging", Proc. SPIE 8099, Biosensing and Nanomedicine IV, 809918 (12 September 2011); https://doi.org/10.1117/12.899617
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Alina Karabchevsky, Lev Tsapovsky, Robert S. Marks, Ibrahim Abdulhalim, "Optical immunosensor for endocrine disruptor nanolayer detection by surface plasmon resonance imaging," Proc. SPIE 8099, Biosensing and Nanomedicine IV, 809918 (12 September 2011); https://doi.org/10.1117/12.899617