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Preparation and Characterization of Lipophilic Doxorubicin Pro-drug Micelles
Published on: August 2, 2016
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Drastically modulating the structure, fluorescence, and functionality of doxorubicin in lipid membrane by interfacial
Jianhui Li1, Shun-Li Chen1, Yi Hou1
1State Key Laboratory of Advanced Welding and Joining, and School of Science, Harbin Institute of Technology (Shenzhen), University Town, Shenzhen 518055, Guangdong, China.
The Journal of Chemical Physics
|December 16, 2019
Summary
Anticancer drug doxorubicin
Area of Science:
- Biophysics
- Materials Science
- Pharmacology
Background:
- Lipid membranes are crucial biological barriers.
- Anticancer drugs interact with cell membranes.
- Understanding drug-membrane interactions is key to drug delivery.
Purpose of the Study:
- To investigate the effect of doxorubicin molecular density on its fluorescence at lipid interfaces.
- To analyze structural and functional changes of doxorubicin on lipid surfaces.
- To explore doxorubicin-induced alterations in lipid bilayer permeability and transport.
Main Methods:
- Second harmonic generation microscopy.
- Theoretical calculations.
- Fluorescence spectroscopy.
Main Results:
- Doxorubicin's fluorescence emission efficiency varied significantly (10% to >300%) with interfacial density.
- Doxorubicin molecules aggregated on lipid membranes at higher densities.
- High doxorubicin density induced cross-membrane transport, but aggregation did not significantly alter bilayer permeability.
Conclusions:
- Doxorubicin's behavior at lipid interfaces is highly dependent on its molecular density.
- Aggregation and induced transport suggest potential for novel drug delivery mechanisms.
- Further research needed to optimize doxorubicin's interfacial properties for cancer therapy.
