DLS is the ultimate tool to determine and measure the agglomeration state of nanoparticles. Globule size of microemulsions may also be measured by DLS technique ( Raval et al., 2018a). By comparing DLS and transmission electron microscopy (TEM) image data, the aggregation state of nanoparticles can be easily determined.
If the suspension is in an unaggregated form, then size will be not that much difference between size analysis data of DLS and TEM. If the suspension is in aggregated form, then the diameter of particles measured by DLS is much larger than the TEM size analysis. In the equation, D is diffusion coefficient, k is Boltzmann’s constant, T is temperature, η is solvent viscosity, and Rh is the rheodynamic radius of particle solution ( Hoo et al., 2008).
0 kommentar(er)
