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Sedimentation velocity (SV) experiments on dispersed nanoparticles present an effective means for determining the hard-to-evaluate properties of nanoparticles. This webinar by Dr. Jeffrey Fagan focuses on leveraging the capabilities of SV methods for characterizing single-wall carbon nanotubes (SWCNTs). Results detailing the use of density contrast techniques on the characterization of the interfacial layer on specific SWCNT species demonstrate the power of analytical ultracentrifugation to resolve this interfacial layer.
Dr. Jeffrey Fagan is from the National Institute of Standards and Technology and discusses the analytical ultracentrifugation of single-wall carbon nanotubes, as well as provides background information to apply to other nanoparticles.
Dr. Fagan begins with an introduction to analytical ultracentrifugation and a quick explanation of single-wall carbon nanotubes. He discusses what we can characterize with the AUC technique, problems and pitfalls we might encounter, and a discussion about how those pitfalls can differ for different nanoparticles. Lastly, he provides two technical examples using the AUC measurement technique on single-wall carbon nanotubes.
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