Several techniques are employed to assess the stability of nanoparticle dispersions:
1. Dynamic Light Scattering (DLS): This technique measures the size distribution and zeta potential of nanoparticles, which are indicative of dispersion stability. 2. Sedimentation Tests: Observing the rate at which particles settle out of the dispersion can provide insights into stability. 3. UV-Vis Spectroscopy: Changes in optical properties can indicate aggregation or changes in dispersion. 4. Microscopy: Techniques like Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) can visually confirm the dispersion state of nanoparticles.
