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Related Concept Videos

Labeling DNA Probes03:31

Labeling DNA Probes

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DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
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Recent Advances on Functional Nucleic-Acid Biosensors.

Xinhong Yu1, Shiqi Zhang1, Wenqiang Guo1

  • 1Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.

Sensors (Basel, Switzerland)
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Functional nucleic acid (FNA) biosensors offer high stability and specificity for disease detection. This review comprehensively covers FNA biosensor principles, classifications, applications, and future prospects.

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Area of Science:

  • Biomedical Engineering
  • Molecular Biology
  • Analytical Chemistry

Background:

  • Biosensors are crucial for rapid human disease detection and monitoring.
  • Functional nucleic acid (FNA) biosensors are gaining attention due to their stability and specificity.

Purpose of the Study:

  • To systematically review the working principles, classification, and applications of FNA biosensors.
  • To introduce functional modes combining FNAs with various signal output mechanisms.
  • To discuss practical applications, challenges, and future directions of FNA sensors.

Main Methods:

  • Review of existing literature on FNA biosensors.
  • Analysis of FNA biosensor functional modes and signal transduction mechanisms.
  • Discussion of current applications and limitations.

Main Results:

  • Detailed explanation of FNA biosensor working principles.
  • Classification of FNA biosensors based on functional modes and signal outputs.
  • Overview of FNA sensor applications in biomedical fields.

Conclusions:

  • FNA biosensors represent a promising technology for disease diagnostics.
  • Addressing current challenges will enhance their clinical utility.
  • Future research should focus on improving sensitivity, selectivity, and real-world applicability.