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Related Concept Videos

Labeling DNA Probes03:31

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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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Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection
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Combating small molecule environmental contaminants: detection and sequestration using functional nucleic acids.

Aimee A Sanford1, Brea A Manuel1, Misael A Romero-Reyes1,2

  • 1Department of Chemistry, Emory University Atlanta Georgia 30322 USA jen.heemstra@emory.edu.

Chemical Science
|July 22, 2022
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Summary
This summary is machine-generated.

Functional nucleic acids, like aptamers, offer a promising solution for detecting and remediating small molecule contaminants in the environment, especially in resource-limited areas. Further development is needed for widespread field application.

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Area of Science:

  • Environmental science
  • Biotechnology
  • Analytical chemistry

Background:

  • Small molecule contaminants present significant environmental and health risks.
  • Current detection and remediation methods face challenges, particularly in resource-limited settings.
  • Functional nucleic acids offer a novel approach due to their specific molecular recognition capabilities.

Purpose of the Study:

  • To review recent advancements in aptamer selection for small molecules.
  • To discuss the application of aptamers in environmental monitoring and remediation.
  • To identify barriers to field deployment and propose future directions.

Main Methods:

  • Literature review of aptamer selection techniques (e.g., SELEX).
  • Analysis of case studies on aptamer-based environmental sensing.
  • Discussion of challenges in aptamer stability, delivery, and cost-effectiveness.

Main Results:

  • Aptamers have been successfully selected for a diverse range of small molecule targets.
  • Demonstrated potential for aptamers in detecting pollutants and toxins in environmental samples.
  • Significant hurdles remain for robust, field-deployable aptamer-based systems.

Conclusions:

  • Aptamers are a versatile tool for environmental contaminant analysis.
  • Overcoming challenges in stability, cost, and field integration is crucial for widespread adoption.
  • Continued research and development are needed to translate aptamer technology into practical environmental solutions.