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H2O2-Responsive Nanoparticle Based on the Supramolecular Self-Assemble of Cyclodextrin
Zhenqiang Dong1,2, Yang Kang3, Qijuan Yuan1
1Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Engineering, Sun Yat-sen University, Guangzhou, China.
Frontiers in Pharmacology
|June 13, 2018
Summary
Researchers developed glucose-responsive nanoparticles using beta-cyclodextrin (β-CD) and alginate. These biocompatible drug delivery systems release Bovine serum albumin (BSA) in response to glucose levels, showing promise for targeted therapies.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery Systems
Background:
- Stimuli-responsive, biocompatible nanoparticles are crucial for advanced drug delivery.
- Current systems require improved control over drug release mechanisms.
Purpose of the Study:
- To develop novel beta-cyclodextrin (β-CD) based nanoparticles for controlled drug release.
- To engineer a glucose-responsive gate mechanism for targeted therapeutic delivery.
Main Methods:
- Synthesis of sodium alginate modified with β-CD (Alg-β-CD).
- Self-assembly of Alg-β-CD with mPEG-Fc and α-cyclodextrin (α-CD) to form nanoparticles (NPs).
- Loading of Bovine serum albumin (BSA) into the self-assembled NPs.
Main Results:
- Stable, spherical nanoparticles (Alg-β-CD/mPEG-Fc/α-CD/BSA NPs) with consistent BSA loading were formed.
- NPs demonstrated disassembly in the presence of hydrogen peroxide (H2O2).
- Glucose-responsive behavior was observed in a glucose oxidase (GOD) environment due to H2O2 production.
Conclusions:
- The developed functional nanoparticles offer a promising platform for drug delivery.
- The glucose-responsive mechanism shows potential for enhanced efficacy in diabetes or immunotherapy applications.
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