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Controllable Release Mode Based on ATP Hydrolysis-Fueled Supra-Amphiphile Assembly
Di Pei1, Bo Liu1, Shuai Zhao1
1State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
ACS Applied Bio Materials
|January 11, 2022
Summary
Researchers developed a novel supra-amphiphile system using adenosine triphosphate (ATP) for controllable cargo release. This system enables intermittent and stepwise release modes, moving beyond traditional methods for advanced applications.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Biomedical Engineering
Background:
- Traditional drug delivery systems often lack precise control over release kinetics.
- Dissipative systems offer opportunities for dynamic and responsive material behavior.
- Supra-amphiphiles represent a class of self-assembled structures with tunable properties.
Purpose of the Study:
- To engineer a dissipative supra-amphiphile system for controllable cargo release.
- To investigate the mechanisms driving cargo release in a non-equilibrium system.
- To explore the potential for life-like, tunable release modes.
Main Methods:
- Construction of a supra-amphiphile via complexation of cationic amphiphile (Zn@DPA-14) and adenosine triphosphate (ATP).
- Utilizing enzyme-mediated ATP hydrolysis to drive the system away from thermodynamic equilibrium.
- Modulating cargo release by adjusting the polarity of loaded molecules.
Main Results:
- Achieved controllable intermittent and stepwise cargo release modes.
- Demonstrated micelle-to-vesicle transformation coupled with cargo release.
- Showcased the influence of cargo polarity on release kinetics.
Conclusions:
- The developed supra-amphiphile system enables advanced, life-like controllable release strategies.
- This approach moves beyond traditional thermodynamic control towards far-from-equilibrium dynamics.
- Potential applications in transport vehicles and the biomedical field, particularly for targeted drug delivery.
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