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Particle shape effects in vitro and in vivo
Bradley J Harris1, Paul Dalhaimer
1Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA.
Frontiers in Bioscience (Scholar Edition)
|June 2, 2012
Summary
Particle shape significantly impacts drug delivery. Understanding geometry
Area of Science:
- Biomedical engineering
- Nanotechnology
- Drug delivery systems
Background:
- Diverse particle shapes are emerging for drug and imaging agent delivery.
- Particle geometry influences biodistribution and potential disease treatments.
- Numerous particle shapes increase complexity in understanding particle-cell interactions.
Purpose of the Study:
- To review the impact of particle shape on cellular interactions.
- To explore how particle geometry affects in vivo performance.
- To analyze the role of shape in drug delivery efficacy and safety.
Main Methods:
- Review of in vitro studies on particle-cell interactions.
- Analysis of in vivo data on circulation and biodistribution in rodents.
- Examination of shape-dependent tumor localization and toxicology.
Main Results:
- Particle shape is a critical parameter influencing cellular uptake and biodistribution.
- Geometry affects circulation time, tumor targeting efficiency, and potential toxicity.
- Shape, alongside chemistry and charge, dictates particle behavior.
Conclusions:
- Particle geometry is a key factor in optimizing drug delivery systems.
- Tailoring particle shape can enhance therapeutic efficacy and minimize side effects.
- Further research into shape-controlled nanoparticles is crucial for advancing nanomedicine.
