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Monodisperse Polyaspartic Acid Derivative Microspheres for Potential Tumor Embolization Therapy
Anqi Xu1, Yuchen Sun1, Mingyu Guo1
1State-Local Joint Engineering Laboratory for Novel Functional Polymer Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
Researchers developed novel polyaspartic acid microspheres for tumor embolization. These biocompatible microspheres efficiently load and release anticancer drugs, showing promise as an embolic agent.
Area of Science:
- Biomaterials Science
- Polymer Chemistry
- Oncology
Background:
- Polyaspartic acid derivatives are biocompatible and biodegradable polypeptides.
- They are utilized in biomedical applications like drug delivery systems (micelles, hydrogels).
- Tumor embolization therapy requires effective embolic agents for localized drug delivery.
Purpose of the Study:
- To prepare monodisperse polyaspartic acid derivative microspheres for potential tumor embolization therapy.
- To evaluate the drug loading kinetics and capacity of these microspheres with doxorubicin hydrochloride.
- To investigate the drug release behaviors of microspheres with varying diameters.
Main Methods:
- Single emulsion droplet microfluidic technique for microsphere preparation.
- Preparation of monodisperse polyaspartic acid derivative microspheres (120-350 µm).
- Loading of cationic anticancer drug doxorubicin hydrochloride onto microspheres.
Main Results:
- Successfully prepared monodisperse polyaspartic acid derivative microspheres.
- Achieved fast doxorubicin hydrochloride loading kinetics and high loading capacity, surpassing commercial products.
- Detailed analysis of drug release profiles based on microsphere diameter and media conditions.
Conclusions:
- Polyaspartic acid derivative microspheres are effectively prepared using microfluidics.
- These microspheres demonstrate superior drug loading capabilities for anticancer agents.
- The findings support their potential application as novel embolic agents in tumor therapy.
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