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Updated: Aug 25, 2025
12:00
Preparation and Characterization of SDF-1α-Chitosan-Dextran Sulfate Nanoparticles
Published on: January 22, 2015
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Structural Characterization of Cis- and Trans-Pt(NH3)2Cl2 Conjugations with Chitosan Nanoparticles.
Penparapa Chanphai1, Gervais Bérubé1, Heidar-Ali Tajmir-Riahi1
1Department of Chemistry, Biochemistry and Physics, University of Québec at Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada.
Molecules (Basel, Switzerland)
|October 14, 2022
Summary
Chitosan nanoparticles effectively bind anticancer drugs like cisplatin. Chitosan 100 KD demonstrated superior drug-carrying capacity compared to chitosan 15 KD for potential drug delivery applications.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery Systems
Background:
- Chitosan, a natural polymer, is explored for drug delivery due to its biocompatibility.
- Anticancer platinum-based drugs, such as cisplatin, are crucial in cancer therapy.
- Developing effective drug delivery systems is vital for improving therapeutic outcomes and reducing side effects.
Purpose of the Study:
- To investigate the conjugation of chitosan with anticancer drugs cis- and trans-diamminedichloroplatinum(II).
- To characterize the drug-polymer interactions using spectroscopic and thermodynamic methods.
- To evaluate the potential of chitosan nanoparticles as drug carriers.
Main Methods:
- Spectroscopic analysis (UV-Vis, FTIR) to study drug-chitosan interactions.
- Thermodynamic analysis to determine binding constants and interaction forces.
- Preparation and characterization of chitosan-drug complexes at varying chitosan molecular weights (15 and 100 KD).
Main Results:
- Both hydrophobic and hydrophilic interactions were identified in drug-polymer binding.
- Chitosan molecular weight and charge significantly influence the stability of drug-polymer complexes.
- Binding constants indicated stronger complex formation with cis-diamminedichloroplatinum(II) than trans-diamminedichloroplatinum(II).
- Chitosan 100 KD exhibited higher binding affinity and stability compared to chitosan 15 KD.
Conclusions:
- Chitosan 100 KD is a more effective drug carrier than chitosan 15 KD in vitro.
- The study highlights the potential of chitosan nanoparticles for delivering platinum-based anticancer drugs.
- Understanding drug-polymer interactions is key to designing optimized nanocarriers for cancer therapy.
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