Systems and methods for detecting chemical and biological substances

A method for detecting an ingredient in a food product or detecting a disease includes allowing a food sample solution obtained from a food product or a body fluid from an individual to come to contact with a nano-scale surface structure in a sensor, wherein the nano-scale surface structure comprise...

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Main Authors Guo, Xun, Wang, Hong, Liu, Chunwei
Format Patent
LanguageEnglish
Published 24.01.2012
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Abstract A method for detecting an ingredient in a food product or detecting a disease includes allowing a food sample solution obtained from a food product or a body fluid from an individual to come to contact with a nano-scale surface structure in a sensor, wherein the nano-scale surface structure comprises a plurality of columns over a substrate or a plurality of holes in a substrate. The method includes illuminating the food sample solution or the body fluid on the nano-scale surface structure on the sensor by a laser beam; obtaining a Raman spectrum from the scattered light using a spectral analyzer; and identifying the spectral signature in the Raman spectrum to determine the existence of the chemical substance in the food product or identifying a disease in the individual.
AbstractList A method for detecting an ingredient in a food product or detecting a disease includes allowing a food sample solution obtained from a food product or a body fluid from an individual to come to contact with a nano-scale surface structure in a sensor, wherein the nano-scale surface structure comprises a plurality of columns over a substrate or a plurality of holes in a substrate. The method includes illuminating the food sample solution or the body fluid on the nano-scale surface structure on the sensor by a laser beam; obtaining a Raman spectrum from the scattered light using a spectral analyzer; and identifying the spectral signature in the Raman spectrum to determine the existence of the chemical substance in the food product or identifying a disease in the individual.
Author Liu, Chunwei
Wang, Hong
Guo, Xun
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Su et al. (2004/0179195) 20040900
Poponin (2002/0123050) 20020900
Stasiak (2004/0106203) 20040600
Boss (6406777) 20020600
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Buechler (2005/0136552) 20050600
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Snippet A method for detecting an ingredient in a food product or detecting a disease includes allowing a food sample solution obtained from a food product or a body...
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Title Systems and methods for detecting chemical and biological substances
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