Abstract
Healthy and safe food holds the key to healthy life, and effective detection of unsafe food is the most prominent scientific effort in this direction. For several years now, biosensors have taken great strides toward ensuring food safety. Aptamers have played a prominent role as specific biorecognition components in these biosensors for a wide variety of target molecules. Additionally, nanomaterials have endowed the sensors with novel transduction platforms, catalytic activity, superparamagnetic properties, and signal enhancement abilities. The present chapter deals with the different nanomaterial-based aptasensing techniques for food contaminants, their principles, strengths, and limitations while citing some important publications in this field.
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