20 Fluorescent nanosensors: rapid tool for detection of food contaminants

Publication date: 2017
Source:Nanobiosensors
Author(s): Bhaswati Bhattacharya, Siddhartha Singha, Santanu Basu
Miniaturized biosensors based on fluorescence principles are slowly gaining commercial importance for rapid detection of food contaminants, such as, pesticide residues, foodborne pathogens, and their toxins. This chapter on fluorescent nanosensors thematically discusses the fluorescent-based quantum dots for food contaminant detection and is broadly divided into three thematic areas. First, theoretical explanation of the fluorescence phenomena including the sensing mechanism is provided, followed by the use of optical nanosensors like quantum dots, and finally the utilization of these quantum dots for sensing food pathogens and toxins is covered.



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