Continuous online nanoparticle sizing and characterization Conference Paper uri icon


  • 14CBMS. We introduce an approach that overcomes the limitations of conventional analysis methods by exploiting surface complexation interactions that emerge when a micron-scale chemical discontinuity is created between suspended nanoparticles and a fluorescent tracer. The generated fluorescence signature is easily detectable and inherently reveals quantitative information about composition, quantity, size, and morphology of nanoparticles in suspension independent of their agglomeration state. We demonstrate our method by establishing the capability to perform continuous characterization of commercial ZnO, anatase and rutile TiO2 nanoparticles. We formulate a reaction-diffusion model to verify experimental findings and capture the fundamental underlying transport and adsorption phenomena.

published proceedings

  • 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014

author list (cited authors)

  • Meng, F., & Ugaz, V. M.

complete list of authors

  • Meng, F||Ugaz, VM

publication date

  • January 2014