Back to Search
Start Over
Dynamics of silver nanoparticle release from wound dressings revealed via in situ nanoscale imaging
- Source :
- Journal of Materials Science. Materials in Medicine
- Publication Year :
- 2014
-
Abstract
- The use of silver nanoparticles (AgNPs) in textiles for enhanced anti-microbial properties has led to concern about their release and impact on both human and environmental health. Here a novel method for in situ visualization of AgNP release from silver-impregnated wound dressings is introduced. By combining an environmental scanning electron microscope, a gaseous analytical detector and a peltier cooling stage, this technique provides near-instantaneous nanoscale characterization of interactions between individual water droplets and AgNPs. We show that dressings with different silver application methods have very distinct AgNP release dynamics. Specifically, water condensation on dressings with AgNP deposited directly on the fiber surface resulted in substantial and rapid AgNP release. By comparison, AgNP release from wound dressing with nanoparticles grown, not deposited, from the fiber surface was either much slower or negligible. Our methodology complements standard bulk techniques for studying of silver release from fabrics by providing dynamic nanoscale information about mechanisms governing AgNP release from individual fibers. Thus coupling these nano and macro-scale methods can provide insight into how the wound dressing fabrication could be engineered to optimize AgNP release for different applications.
- Subjects :
- In situ
Materials science
Silver
Biomedical Engineering
Biophysics
Nanoparticle
Metal Nanoparticles
Bioengineering
Nanotechnology
Bandages
Silver nanoparticle
Article
Anti-Bacterial Agents
Molecular Imaging
Biomaterials
Diffusion
Delayed-Action Preparations
Nano
Materials Testing
Chemical Engineering(all)
Wetting
Fiber
Environmental scanning electron microscope
Nanoscopic scale
Subjects
Details
- ISSN :
- 15734838
- Volume :
- 25
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Journal of materials science. Materials in medicine
- Accession number :
- edsair.doi.dedup.....0449722f9680894df353fef38935d50c