Whole-cell aptamer-based techniques for rapid bacterial detection: Alternatives to traditional methods

Area of Science:

• Biotechnology
• Microbiology
• Analytical Chemistry

Background:

• Antibiotic resistance poses a significant public health threat, necessitating rapid identification of pathogenic bacteria.
• Conventional culture-based methods for bacterial detection are time-consuming and require specialized equipment.
• Whole-cell bacterial detection offers a faster alternative, bypassing the need for culturing.

Purpose of the Study:

• To review alternative methods for whole-cell bacterial detection.
• To highlight the potential of nucleic acid aptamers as recognition elements in bacterial assays.
• To explore the application of aptamer-based assays in various diagnostic platforms.

Main Methods:

• Review of current literature on whole-cell bacterial detection techniques.
• Emphasis on aptamer-based assays as a key alternative to antibodies.
• Exploration of different transduction mechanisms (optical, electrochemical, mechanical) for aptamer assays.

Main Results:

• Aptamers demonstrate superior stability, cost-efficiency, specificity, and affinity compared to antibodies.
• Aptamer-based assays show promising results across diverse transduction methods.
• These assays offer versatility for integration into various diagnostic platforms.

Conclusions:

• Aptamer-based assays provide rapid, sensitive, and versatile solutions for pathogen identification.
• They represent valuable tools for combating bacterial infections and enhancing public health.
• The development of portable aptamer diagnostic platforms is a key area for future research.