Nanoparticle Tracking Analysis of Gold Nanoparticles in Aqueous Media through an Inter-Laboratory ComparisonSophie M. Briffa 1, Jo Sullivan 2, Agnieszka Siupa 2, Pauline Carnell-Morris 2, Michele Carboni 2, Kerstin Jurkschat 3, Ruud J. B. Peters 4, Carolin Schultz 5, Kang Hee Seol 6, Sook-Jin Kwon 6, Sehee Park 7, Tae Hyun Yoon 6,7, Colin Johnston 3, Stephen Lofts 8, Eugenia Valsami-Jones 1
1School of Geography, Earth and Environmental Sciences, University of Birmingham, 2Malvern Panalytical, 3Department of Materials, University of Oxford, 4Wageningen Food Safety Research, 5UK Centre for Ecology & Hydrology, 6Institute for Next Generation Material Design, Hanyang University, 7Department of Chemistry, College of Natural Sciences, Hanyang University, 8UK Centre for Ecology & Hydrology
The protocol described here aims to measure the hydrodynamic diameter of spherical nanoparticles, more specifically gold nanoparticles, in aqueous media by means of Nanoparticle Tracking Analysis (NTA). The latter involves tracking the movement of particles due to Brownian motion and implementing the Stokes-Einstein equation to obtain the hydrodynamic diameter.
