Photon Cross-Correlation Spectroscopy (PCCS) | Particle Size and Stability from 0.5 nm to 10,000 nm
In general, the acquisition of scattered light intensities of particles under thermal motion is deployed for nanoparticle characterisation (principle of dynamic light scattering (DLS)). The method known as Photon Correlation Spectroscopy (PCS) applies auto-correlation of scattered light intensities in order to determine particle size distribution. However, this conventional technology requires extremely diluted samples in order to deliver meaningful results.
NANOPHOX brings Photon Cross-correlation Spectroscopy (PCCS) to life, which allows for nanoparticle size analysis in turbid suspensions and emulsions ranging from 0.5 nm to 10,000 nm at up to a hundred times higher solid contents. The outstanding technological feature of NANOPHOX is the acquisition of two separately induced scattered light intensities which then are cross-correlated. This allows for robust measurement even at higher sample concentrations. In addition to size, the aggregation or sedimentation behaviour of nanosuspensions (i.e. stability) may be analysed. Typical applications comprise e.g., polymer emulsions, colloidal silica, inks and research on nanodispersions in general.
