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Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood

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Published on: October 12, 2012

Sandwich-type aptamer-based biosensors for thrombin detection.

Somayeh Sahraneshin Samani¹, Elham Sameiyan^2,3, Farideh Tabatabaei Yazdi¹

¹Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran.

Analytical Methods : Advancing Methods and Applications

|March 19, 2024

Summary

This study reviews sandwich-type thrombin aptasensors, which use two thrombin-binding aptamers (TBAs) to detect thrombin. These biosensors offer stable and sensitive detection for diagnosing blood-related diseases.

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Area of Science:

Biomedical Engineering
Molecular Diagnostics
Biochemistry

Background:

Thrombin is a key enzyme in blood clotting and a marker for diseases like leukemia and Alzheimer's.
Accurate thrombin detection is crucial for biological and medical research.
Biosensors offer reproducible and sensitive detection methods.

Purpose of the Study:

To review recent advances in sandwich-type thrombin aptasensors.
To discuss the progress and applications of these biosensors.
To analyze the pros and cons of different sandwich-type aptasensor designs.

Main Methods:

Investigating aptasensors with sandwich-type structures.
Utilizing two thrombin-binding aptamers (TBAs) to bind different sites on thrombin.
Analyzing signal detection upon sandwich complex formation.

Main Results:

Sandwich-type aptasensors demonstrate enhanced sensitivity and stability.
The dual-aptamer binding approach improves detection specificity.
Various designs offer different advantages and limitations.

Conclusions:

Sandwich-type thrombin aptasensors represent a promising platform for disease diagnosis.
Further research can optimize designs for improved clinical utility.
This review provides insights into logical design approaches for thrombin detection.