Advances in biosensor development based on integrating nanotechnology and applied to food-allergen management

•Trends in biosensor development.•Applications of biosensors to the food allergen field.•Insights in nanostructure-based systems for food allergens screening.

The risks associated with the presence of hidden allergens in the food chain have raised the need for fast, sensitive, and reliable methods to trace food allergens in different commodities.We highlight advances and future trends in biosensor systems applied to food-allergen management. We discuss critical aspects of biosensor development with particular emphasis on integrating nanotechnology.