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Using Immunofluorescence to Detect PM2.5-induced DNA Damage in Zebrafish Embryo Hearts
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Performing DNA nanotechnology operations on a zebrafish.

Jian Yang1, Zhuojun Meng2, Qing Liu2

  • 1Supramolecular & Biomaterials Chemistry , Leiden Institute of Chemistry , Leiden University , P.O. Box 9502 , 2300 RA Leiden , The Netherlands .

Chemical Science
|October 6, 2018
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Summary

Researchers engineered zebrafish surfaces using DNA nanotechnology, enabling targeted cargo attachment and improved fluorescent labeling for drug development and tracking applications.

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Area of Science:

  • Biotechnology
  • Nanotechnology
  • Molecular Biology

Background:

  • Surface modification is crucial for altering cellular behavior.
  • DNA nanotechnology offers precise control at the nanoscale.

Purpose of the Study:

  • To explore nanoscale surface engineering on a live animal using DNA nanotechnology.
  • To functionalize zebrafish skin with DNA for cargo attachment and enhanced labeling.

Main Methods:

  • Immobilization of membrane-anchored oligonucleotides on 2-day-old zebrafish.
  • Utilizing protruding single-stranded DNA as a handle for complementary DNA attachment.
  • Employing DNA hybridization for cargo delivery (small molecules, liposomes) and dynamic relabeling.

Main Results:

  • Successful attachment of various molecules and liposomes to zebrafish skin via DNA handles.
  • Demonstrated robust oligonucleotide anchoring through DNA-based amplification on the cell membrane.
  • Achieved significant improvement in fluorescent labeling efficiency of the zebrafish.

Conclusions:

  • Developed a platform integrating DNA nanotechnology with live animals.
  • This approach enables novel applications such as efficient bio-barcoding and in vivo tracking.
  • Highlights the potential of zebrafish as a model for drug development and nanoparticle characterization.