Characterization & Properties
Characterization of Dune Nanosilver (NS20D)
Dune Sciences recognizes the importance of producing quality materials that are repeatable and reproducible as well as the importance of understanding the physical and chemical properties, especially for nanoscale materials. Accordingly, we have spent a significant effort towards establishing methodologies and techniques to ensure that the materials we meet our quality standards. Among the different analytical methods we routinely use are: thermogravimetric analysis (TGA), electron microscopy, UV-Vis absorption spectroscopy, NMR, FTIR, solids content, x-ray photoelectron spectroscopy, and dynamic light scattering among others. Much of this analysis is performed at the Center for Advanced Materials Characterization in Oregon (CAMCOR). The figures below show some representative data from the analyses.
Transmission electron micrographs of NS20D
UV/Vis Absorption spectroscopy
X-ray Photoelectron Spectroscopy
Physical/Chemical Properties of NS20D-1K aqueous suspensions.
|pH||pH 7; neutral|
|250C (to lose emulsifier)|
|Shelf life||>5 yrs.|