Evolution of nucleic acids biosensors detection limit III

Area of Science:

• Biosensors
• Electrochemistry
• Nucleic Acid Detection

Background:

• Electrochemical biosensors offer direct nucleic acid detection.
• Previous reviews focused on detection limits.
• Advancements in sensor technology are ongoing.

Purpose of the Study:

• To provide an updated review of electrochemical nucleic acid biosensors.
• To classify sensors based on their electrochemical transduction pathway.
• To critically analyze the evolution of detection limits over the past three decades.

Main Methods:

• Literature review and classification of electrochemical nucleic acid biosensors.
• Analysis of detection limits based on sensor architecture and transduction pathway.
• Critical evaluation of recent strategies for improving sensitivity.

Main Results:

• Established a classification system for electrochemical nucleic acid biosensors based on transduction pathways.
• Documented the evolution of detection limits for various sensor architectures over 30 years.
• Identified and critically reviewed recent strategies enhancing sensor performance.

Conclusions:

• Electrochemical nucleic acid biosensors have significantly improved in detection limits.
• Classification by transduction pathway aids in understanding sensor development.
• Recent strategies show promise for further advancements in direct nucleic acid detection.