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Published on: June 11, 2018
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Kinetics of Drug Release from Clay Using Enhanced Sampling Methods.
Ana Borrego-Sánchez1, Jayashrita Debnath1, Michele Parrinello1
1Center for Human Technologies, Italian Institute of Technology (IIT), Via Enrico Melen 83, 16152 Genoa, Italy.
Pharmaceutics
|December 23, 2022
Summary
Computational chemistry aids drug development by simulating drug-excipient interactions. Enhanced sampling molecular dynamics reveals that praziquantel diffusion within montmorillonite clay limits drug release for schistosomiasis treatment.
Area of Science:
- Computational chemistry
- Materials science
- Pharmacology
Background:
- Drug development requires optimizing drug-excipient complexes for controlled release.
- Praziquantel is a promising drug for schistosomiasis, but its delivery needs improvement.
- Montmorillonite clay offers a cost-effective excipient solution.
Purpose of the Study:
- To demonstrate the utility of enhanced sampling molecular dynamics in predicting drug release kinetics.
- To simulate the release of praziquantel from montmorillonite clay.
- To identify the rate-limiting step in the drug release process.
Main Methods:
- Enhanced sampling molecular dynamics simulations.
- Modeling of praziquantel-montmorillonite complex in aqueous environment.
- Analysis of drug diffusion from surface and interlayer spaces.
Main Results:
- Simulations successfully modeled praziquantel release from montmorillonite.
- Drug diffusion within the interlayer space was identified as the rate-limiting step.
- Methodology shows potential for reducing experimental costs and time.
Conclusions:
- Enhanced sampling molecular dynamics is a powerful tool for drug-excipient interaction studies.
- Montmorillonite clay is a viable excipient for praziquantel delivery.
- Understanding diffusion kinetics is crucial for optimizing drug release profiles.
Keywords:
clay mineralscomputational calculationsdrug releaseenhanced sampling molecular dynamicskineticspraziquantelMore Related Videos
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