Nanotechnology in Food Safety: Quantum Dot-Based Detection of Contaminants

Ensuring food safety has become increasingly critical due to the rise in foodborne illnesses. Globalized supply chains and evolving contaminants have made it more important than ever to ensure food safety. Despite their accuracy, traditional contamination detection techniques are frequently costly, require specialized infrastructure, and lack field adaptability. In this regard, nanotechnology, specifically, quantum dots (QDs), has become a game-changing tool for pollutant detection and biosensing. The concepts, uses, and practical ramifications of quantum dot-based sensing (QDS) for food pollutants like heavy metals, pesticides, pathogens, and poisons are examined in this case study. To integrate QD technology into food safety monitoring systems, we examine the existing state of the field, highlight innovative case studies, examine regulatory obstacles, and suggest a roadmap. The goal of this case study is to present a fair assessment of the potential and constraints of quantum dot-based technologies, as well as the legal and business frameworks around them. Information © The Author 2025