title: Improvement of photon correlation spectroscopy method for measuring nanoparticle size by using attenuated total reflectance.
abstract: Photon correlation spectroscopy is an effective method for measuring nanoparticle sizes and has several advantages over alternative methods. However, this method suffers from a disadvantage in that its measuring accuracy reduces in the presence of convective flows of fluid containing nanoparticles. In this paper, we propose a scheme based on attenuated total reflectance in order to reduce the influence of convection currents. The autocorrelation function for the light-scattering intensity was found for this case, and it was shown that this method afforded a significant decrease in the time required to measure the particle sizes and an increase in the measuring accuracy.
authors.affiliation: Electrophysics Department, Kwangwoon University, 20 Kwangwoon Road, Nowon-Gu, Seoul 139-701, Korea. krishtop@list.ru
authors.forename: Victor
authors.initials: V
authors.lastname: Krishtop
authors.forename: Ivan
authors.initials: I
authors.lastname: Doronin
authors.forename: Konstantin
authors.initials: K
authors.lastname: Okishev
mesh_terms: D016880:Anisotropy; D001703:Biophysics / Q000379:methods; D004058:Diffusion; D004867:Equipment Design; D008027:Light; D046911:Macromolecular Substances; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D055095:Optics and Photonics; D010316:Particle Size; D017785:Photons; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D013053:Spectrophotometry / Q000379:methods
chemical_list: D046911:Macromolecular Substances