Nanoparticle Characterization

Extensive nanoparticle characterization is the starting point for evaluating and incorporating nanoparticles into systems.  In many cases, a nanoparticle's properties may be completely different based on the methods on which it has been fabricated and processed.  The characterization necessary to determine how to handle and work with your nanomaterial will depend on both your starting material and your target application.  At a minimum you should know the shape, size and size distribution, and the aggregation state of the nanomaterial.  Surface characteristics such as the charge and the presence of any stabilizing molecules on the nanoparticle, the purity, optical properties, particle stability, and solvent compatibility are all important.

Characterization Services

	TEM Imaging and Statistical Analysis Our TEM service consists of 5 high quality transmission electron microscopy images.  Full statistical analysis can be performed on 100 or 300 particles.
	Spectroscopic Analysis Many nanopartilces have unique optical signatures in the ultra violet and visible wavelengths.  This allows for the monitoring of particles' quality and stability.
	Dynamic Light Scattering (DLS) Dynamic Light Scattering (DLS) measures the hydrodynamic diameter of particles in solution and is an important tool for quantifying particle agglomeration.  Our DLS analysis service includes a report with the hydrodynamic size and the size distribution of suspended nanoparticles and nanoparticle agglomerates.  Both dilute and highly concentrated suspensions can be measured.
	Zeta Potential Zeta Potential is the potential difference between the stationary layer of fluid attached to the dispersed particle and the surrounding suspension media. The Zeta Potential provides important information on the charge and stability of particles.