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Modular Metal-Quinone Networks with Tunable Architecture and Functionality.

Qi-Zhi Zhong1,2,3, Joseph J Richardson4, Yuan Tian2

  • 1Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia.

Angewandte Chemie (International Ed. in English)
|February 2, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed new metal-quinone networks (MQNs) that are tunable, adhesive, and pH-degradable. These materials offer controlled release for drug delivery, showing promise in anti-cancer therapy and antiviral applications.

Keywords:
Metal-Organic ParticlesNanostructuresProdrugsQuinonesSelf-Assembly

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Nanotechnology

Background:

  • Nanostructured materials offer tunable properties for diverse applications.
  • Metal-organic coordination offers a versatile approach to material design.

Purpose of the Study:

  • To synthesize and characterize a new class of metal-quinone networks (MQNs).
  • To investigate the pH-responsive disassembly and controlled release capabilities of MQNs.
  • To engineer MQN-based prodrugs for therapeutic applications.

Main Methods:

  • Coordination of metal ions with quinone ligands via metal-acetylacetone bonds.
  • Assembly of MQNs into various morphologies (particles, tubes, capsules, films).
  • Evaluation of pH-responsive disassembly kinetics and drug release profiles.
  • Development of MQN prodrugs loaded with doxorubicin and shikonin.

Main Results:

  • A library of structurally tunable MQNs was successfully synthesized using various metal ions and quinone ligands.
  • MQNs exhibited universal adhesion, hydrophilicity, and bidirectional pH-responsive disassembly.
  • Quinone ligands controlled disassembly kinetics, enabling temporal and spatial release from multilayered MQNs.
  • MQN prodrugs achieved high drug loading (>89 wt%) for doxorubicin (anti-cancer) and shikonin (SARS-CoV-2 inhibition).

Conclusions:

  • MQNs represent a versatile platform for creating functional, tunable, and degradable nanostructured materials.
  • The pH-responsive nature of MQNs allows for precise control over the release of encapsulated components.
  • MQN prodrugs demonstrate significant potential for targeted drug delivery in cancer therapy and antiviral treatments.