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Related Experiment Video

Updated: Sep 4, 2025

Phthalic Acid Ester-Binding DNA Aptamer Selection, Characterization, and Application to an Electrochemical Aptasensor
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The Recent Progress in DNAzymes-Based Aptasensors for Thrombin Detection.

Zahra Salmasi1,2, Nadiyeh Rouhi3, Hossein Safarpour4

  • 1Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.

Critical Reviews in Analytical Chemistry
|July 22, 2022
PubMed
Summary

New DNAzymes-based aptasensors offer sensitive detection of thrombin (TB), a key blood coagulation protein. These nanoaptasensors combine aptamers and nanomaterials for improved clinical diagnostics.

Keywords:
AptamerDNAzymesaptasensornanosensorthrombin

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Area of Science:

  • Biochemistry
  • Biotechnology
  • Analytical Chemistry

Background:

  • Thrombin (TB) is a critical human blood coagulation protein involved in hemostasis, wound healing, and atherosclerosis.
  • Accurate TB detection is vital for clinical diagnostics, driving the need for innovative detection methods.
  • Aptasensors and nanoaptasensors have emerged as promising tools for sensitive and facile TB detection.

Purpose of the Study:

  • To review recent advancements in DNAzymes-based aptasensors and nanoaptasensors for thrombin detection.
  • To highlight the advantages of DNAzymes as biocatalysts in analytical applications.
  • To discuss the challenges and future prospects of these biosensing technologies for TB detection.

Main Methods:

  • Review of literature on DNAzymes-based aptasensors and nanoaptasensors for thrombin detection.
  • Analysis of the design principles and performance of various aptasensor configurations.
  • Discussion of the catalytic properties of DNAzymes compared to protein enzymes.

Main Results:

  • DNAzymes-based aptasensors and nanoaptasensors demonstrate high sensitivity and specificity for thrombin detection.
  • The integration of aptamers with nanomaterials enhances the analytical performance of biosensors.
  • DNAzymes offer advantages such as stability, ease of synthesis, and tunable catalytic activity.

Conclusions:

  • DNAzymes-based aptasensors represent a significant advancement in developing novel tools for clinical thrombin detection.
  • Nanoaptasensors incorporating DNAzymes offer enhanced sensitivity and accuracy for diagnostic applications.
  • Further research into DNAzymes-based biosensors holds promise for improved point-of-care diagnostics and therapeutic monitoring.