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Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

444
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
444

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Programmable Lanthanide Metal-Organic Framework for Ultra-Efficient Nucleic Acids Extraction and Interaction

Long Yu1,2,3, Qi Xu1,4, Yuqing Sun2

  • 1Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.

Analytical Chemistry
|July 5, 2024
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Summary

Researchers developed an ultra-efficient nucleic acid affinity nanomaterial using lanthanide metal-organic frameworks (Ln-MOFs). This breakthrough offers enhanced nucleic acid extraction and reversible gene editing applications for medical diagnosis and research.

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Biotechnology

Background:

  • Efficient and reversible nucleic acid adsorption on nanomaterials is crucial for medical diagnostics.
  • Current nanomaterials lack efficiency and reversibility, hindering development.
  • Understanding molecular interactions is key for designing advanced nanomaterials.

Purpose of the Study:

  • To develop an ultra-efficient nucleic acid affinity nanomaterial.
  • To establish design guidelines and preparation schemes for lanthanide metal-organic frameworks (Ln-MOFs).
  • To elucidate the molecular mechanisms of nucleic acid adsorption onto Ln-MOFs.

Main Methods:

  • Utilized programmable lanthanide metal-organic frameworks (Ln-MOFs).
  • Employed experimental studies and density functional theory (DFT) calculations.
  • Investigated adsorption and desorption of single- and double-stranded DNA and G4 structures.

Main Results:

  • Er-TPA MOF demonstrated pore size-independent, ultra-efficient nucleic acid adsorption (150% mass ratio) in 1 minute.
  • Elucidated molecular mechanisms of nucleic acid-Ln-MOF interactions.
  • Achieved 4-fold higher nucleic acid extraction than commercial kits and enabled reversible CRISPR/Cas9 regulation.

Conclusions:

  • Developed a rational design guideline for nucleic acid affinity Ln-MOFs.
  • Demonstrated the potential of Ln-MOFs for robust nucleic acid extraction and gene editing.
  • Highlighted broad applications in DNA/RNA liquid biopsy, analytical chemistry, and medical research.