Nucleic Acid Aptamer-Based Sensors for Bacteria Detection: A Review

Area of Science:

• Microbiology
• Biotechnology
• Analytical Chemistry

Background:

• Bacteria pose significant threats to human health and production, necessitating rapid detection methods.
• Aptamers, selected via SELEX, are effective recognition elements in biosensors due to their specificity and stability.
• Current bacterial detection methods require improvement in speed and accuracy.

Purpose of the Study:

• To review recent advancements in bacterial aptamer selection using SELEX technology.
• To compare optical and electrochemical bacterial aptamer sensors.
• To introduce technological innovations and future prospects in bacterial aptamer sensor development.

Main Methods:

• Systematic review of literature on bacterial aptamers selected through SELEX.
• Analysis of different optical and electrochemical aptasensor designs for bacterial detection.
• Evaluation of new materials and methods enhancing sensor performance.

Main Results:

• Diverse bacterial aptamers have been successfully selected using SELEX.
• Both optical and electrochemical aptasensor platforms show promise for bacterial detection.
• Integration of novel materials and techniques improves sensor efficiency and stability.

Conclusions:

• Bacterial aptamer sensors represent a rapidly advancing field with significant potential for infectious disease diagnostics.
• Continued innovation in aptamer selection and sensor design will further enhance detection capabilities.
• The practical application status of these sensors indicates a promising future for improved public health outcomes.