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Related Experiment Videos

A G-Quadruplex Hydrogel via Multicomponent Self-Assembly: Formation and Zero-Order Controlled Release.

Yuanfeng Li, Yong Liu, Rujiang Ma

  • 1Department of Biological Pharmacy, College of Basic Science, Tianjin Agricultural University , Tianjin 300384, China.

ACS Applied Materials & Interfaces
|March 31, 2017
PubMed
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Researchers developed a novel supramolecular guanosine (G)-quadruplex hydrogel using readily available building blocks. This stimuli-responsive hydrogel exhibits zero-order drug release, overcoming limitations of traditional hydrogels for biomedical applications.

Area of Science:

  • Biomaterials Science
  • Supramolecular Chemistry
  • Drug Delivery Systems

Background:

  • Traditional hydrogels face limitations in material availability, synthesis complexity, and drug release profiles.
  • Stimuli-responsive hydrogels are promising for biomedical applications but require improved designs.
  • Existing hydrogels often exhibit undesirable fast-then-slow drug release kinetics.

Purpose of the Study:

  • To fabricate a novel supramolecular guanosine (G)-quadruplex hydrogel.
  • To address limitations of conventional hydrogels, particularly in drug release behavior.
  • To create a stimuli-responsive hydrogel with versatile building blocks and convenient synthesis.

Main Methods:

  • Multicomponent self-assembly of guanosine (G), 2-formylboronic acid (2-FPBA), and tris(2-aminoethyl)amine (TAEA) in the presence of KCl.
Keywords:
G-quadruplexcontrolled releasedynamic covalent bondssupramolecular hydrogelszero-order

Related Experiment Videos

  • Characterization of the hydrogel's structure, morphology, and properties.
  • Evaluation of drug release kinetics under stimuli-responsive conditions.

    • Main Results:

    • A new supramolecular G-quadruplex hydrogel was successfully fabricated via a convenient multicomponent self-assembly process.
    • The hydrogel incorporates dynamic iminoboronate bonds, conferring pH and glucose responsiveness.
    • Satisfactory zero-order drug release was achieved due to superficial peel-off in response to stimuli.

    Conclusions:

    • The developed G-quadruplex hydrogel offers a versatile and responsive platform for drug delivery.
    • The hydrogel overcomes common limitations of traditional hydrogels, providing predictable zero-order release.
    • This novel supramolecular hydrogel holds potential for various applications in biological fields and bioengineering.