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Related Experiment Video

Updated: May 25, 2026

Aptamer-Based Target Detection Facilitated by a 3-Stage G-Quadruplex Isothermal Exponential Amplification Reaction
03:38

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Assays for aptamer-based platforms.

Marimuthu Citartan1, Subash C B Gopinath, Junji Tominaga

  • 1Infectious Disease Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, 13200 Kepala Batas, Penang, Malaysia.

Biosensors & Bioelectronics
|February 14, 2012
PubMed
Summary

Aptamers, or single-stranded DNA/RNA, offer high specificity for molecular targets. These versatile molecules are revolutionizing diagnostics and biosensors due to their stability and adaptability.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Nanotechnology

Background:

  • Aptamers are single-stranded DNA or RNA oligonucleotides with high affinity and specificity for diverse targets.
  • They possess advantages like low molecular weight, chemical modification ease, and stability through repeated denaturation/renaturation cycles.
  • These traits make aptamers valuable molecular recognition elements, serving as alternatives to antibodies in diagnostic assays.

Purpose of the Study:

  • To review the application of aptamers in various biosensor developments.
  • To discuss aptamer implementation in fluorescence, electrochemistry, nano-label, and nano-construct assays.
  • To highlight the core design strategies for reporting aptamer-target binding.

Main Methods:

  • Review of existing literature on aptamer-based biosensors.
  • Analysis of different detection strategies employed in aptamer assays.
  • Examination of aptamer integration with various assay platforms.

Main Results:

  • Aptamers are effectively used as molecular recognition elements in diagnostic assays.
  • Aptamer-based biosensors utilize diverse methods like fluorescence and electrochemistry for detection.
  • The fundamental principle across different aptamer assays involves reporting specific target binding.

Conclusions:

  • Aptamers are integral tools in numerous biosensor developments.
  • Further advancements in transducing aptamer-target binding will broaden aptamer applications.
  • Aptamers show significant potential for future innovations in diagnostics and sensing.