Visible-light-triggered supramolecular valves based on β-cyclodextrin-modified mesoporous silica nanoparticles for
Qing Bian1, Zhaolu Xue2, Po Sun1
1Analysis and Testing Central Facility of Anhui University of Technology Maanshan 243032 China bq66bq@126.com.
RSC Advances
|May 6, 2022
Summary
Researchers developed a novel drug delivery system using light-activated azobenzene and cyclodextrin-modified nanoparticles. This system efficiently releases drugs, showing promise for targeted cancer therapy applications.
Area of Science:
- Materials Science
- Nanotechnology
- Biomedical Engineering
Background:
- Drug delivery systems are crucial for effective disease treatment.
- Controlled drug release is essential to minimize side effects and maximize efficacy.
- Visible-light-responsive materials offer precise spatiotemporal control over drug release.
Purpose of the Study:
- To construct a high-efficiency drug delivery system triggered by visible light.
- To investigate the binding and releasing mechanism between tetra-ortho-methoxy-substituted azobenzene (mAzo) and β-cyclodextrin (β-CD) modified mesoporous silica nanoparticles.
- To evaluate the potential of this system for cancer therapy.
Main Methods:
- Synthesis of mesoporous silica nanoparticles modified with β-cyclodextrin.
- Incorporation of tetra-ortho-methoxy-substituted azobenzene (mAzo) for light-triggered interaction.
- Construction of the drug delivery system utilizing the mAzo-β-CD complex.
- Quantification of drug release efficiency under visible light irradiation.
Main Results:
- A novel drug delivery system was successfully constructed.
- The system demonstrated visible-light-triggered binding and releasing capabilities.
- The drug releasing efficiency was determined to be 56% under visible light.
- The mAzo-β-CD-nanoparticle complex showed effective drug loading and controlled release.
Conclusions:
- The developed system offers a high-efficiency, visible-light-triggered method for drug delivery.
- The system's design leverages the photoresponsive properties of azobenzene and the host-guest chemistry of cyclodextrin.
- This light-controlled drug delivery platform holds significant potential for advancing cancer therapy.
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