Recent Advancements in Synthetic DNA Based Biosensor Construction Towards Bacterial Diarrhoea Detection: a Review

Area of Science:

• Biotechnology
• Nanotechnology
• Molecular Diagnostics

Background:

• Diarrhea, a major cause of child mortality, often results from contaminated water containing pathogenic bacteria.
• Conventional microbiological diagnostics lack the speed required for early prediction of diarrhea-causing agents.
• DNA-based biosensors are emerging as promising tools for rapid and sensitive detection.

Purpose of the Study:

• To review techniques for bacterial diarrhea detection using synthetic DNA bioreceptors.
• To discuss signal transduction methods (optical, electrochemical) in DNA biosensors.
• To explore the role of nanomaterials in enhancing biosensor performance.

Main Methods:

• Review of recent literature (last 5 years) on DNA biosensor applications for bacterial detection.
• Analysis of synthetic DNA bioreceptors (aptamers, DNAzymes, probes).
• Discussion of optical and electrochemical signal transduction mechanisms.

Main Results:

• Synthetic DNA biosensors demonstrate high stability, reusability, and cost-effectiveness.
• DNA biosensors enable rapid detection of key diarrhea-causing bacteria like E. coli, Salmonella, and Shigella.
• Nanomaterials significantly improve the sensitivity and selectivity of these biosensors.

Conclusions:

• DNA biosensors represent a significant advancement in rapid bacterial diarrhea detection.
• These biosensors hold potential for disease monitoring, prevention, and personalized therapy.
• Further research into novel bioreceptors and nanomaterial integration is encouraged.