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Solubility of Hydrophobic Compounds in Aqueous Solution Using Combinations of Self-assembling Peptide and Amino Acid
Published on: September 20, 2017
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Chitosan-dipeptide hydrogels as potential anticancer drug delivery systems.
Jaemin Shim1, Jiseon Kang1, Seok Il Yun1
1Department of Chemical Engineering and Materials Science, Sangmyung University, Seoul 110-743, Republic of Korea.
International Journal of Biological Macromolecules
|July 27, 2021
Summary
A novel chitosan-dipeptide hydrogel shows promise for cancer therapy. This injectable, self-healing material effectively delivers doxorubicin, demonstrating controlled release and potent cytotoxicity against lung cancer cells.
Area of Science:
- Biomaterials Science
- Drug Delivery Systems
- Nanotechnology
Background:
- Chitosan-based hydrogels are widely explored for biomedical applications.
- Developing injectable and self-healing drug delivery systems remains a challenge.
- Controlled release of chemotherapeutic agents is crucial for effective cancer therapy.
Purpose of the Study:
- To fabricate and characterize a novel chitosan-dipeptide hydrogel for drug delivery.
- To investigate the effect of composition on hydrogel properties and drug release kinetics.
- To evaluate the potential of the hydrogel as a localized cancer treatment vehicle.
Main Methods:
- Fabrication of hydrogel via self-assembly of Fmoc-FF and electrostatic interaction with GCS.
- Characterization of hydrogel strength, stability, and thixotropic properties.
- In vitro assessment of doxorubicin release at varying pH and cytotoxicity against A549 lung cancer cells.
Main Results:
- Hydrogel strength and stability were dependent on Fmoc-FF mass fraction, with optimal strength at 0.85.
- Doxorubicin incorporation enhanced hydrogel stability and resulted in slow, controlled release.
- Accelerated drug release was observed at lower pH values (5.5 and 4.0).
- The doxorubicin-loaded hydrogel demonstrated significant cytotoxicity against A549 human lung cancer cells.
Conclusions:
- The novel chitosan-dipeptide hydrogel exhibits desirable properties for injectable, self-healing drug delivery.
- The hydrogel facilitates controlled release of doxorubicin, with pH-dependent kinetics.
- This material shows significant potential for localized and targeted cancer therapy.
