Aptamer-based electrochemical biosensors for progesterone detection: Advancing point-of-care diagnostics

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Biosensor Technology

Background:

• Progesterone detection is vital for reproductive health, diagnostics, and environmental monitoring.
• Traditional methods are often complex, time-consuming, and require laboratory infrastructure.
• Electrochemical biosensors offer sensitive, specific, and accessible point-of-care detection.

Purpose of the Study:

• To highlight the potential of electrochemical aptamer biosensors (E-ABs) for progesterone detection.
• To showcase aptamers as superior biorecognition elements compared to antibodies or enzymes.
• To emphasize the advantages of E-ABs for portable and cost-efficient diagnostics.

Main Methods:

• Utilizing aptamer sequences as biorecognition elements.
• Immobilizing aptamers on a gold electrode surface via self-assembled monolayers.
• Employing electrochemical detection for signal transduction upon progesterone binding.
• Developing aptamer-based electrochemical biosensors (E-ABs) for progesterone analysis.

Main Results:

• Aptamers demonstrate high specificity, affordability, and consistency for progesterone detection.
• E-ABs facilitate efficient electron transfer and rapid signal transduction.
• The developed biosensors are suitable for detecting biomarkers in bodily fluids.
• E-ABs enable continuous and real-time monitoring capabilities.

Conclusions:

• Electrochemical aptamer biosensors represent a significant advancement in diagnostic technology.
• These biosensors offer a path towards portable, multiplexed, and cost-effective point-of-care testing.
• The integration of E-ABs enhances capabilities for clinical diagnostics and in vivo monitoring.