Quantum dots-based pathogenic biosensing

Pathogenic bacteria, inclusive of foodborne, waterborne, and airborne strains, pose serious threats to humanity, simultaneously resulting in social and economic losses, globally. The conventional protocols followed for detecting pathogens have poor specificity, callous, are labor-intensive, and consume enormous time. The current need is to develop effective and innovative devices to detect pathogens in real-time assaying strategies. QDs-based semiconductor crystals could be used as a replacement for nanomaterial biosensors used for monitoring pathogenic bacteria due to the unique quantum confinement effect. This chapter offers a summary of the different biorecognition elements for pathogenic biosensing and various techniques that are available for current sensing strategies. Finally, this chapter concludes by recognizing the key challenges for pathogenic biosensing advancements in the future, thereby providing new innovative ideas and better sensing possibilities for detecting harmful pathogens.