id author title date pages extension mime words sentences flesch summary cache txt work_5isjabbvajgmfhup4p3ec7j75i Johanna Midelet The Sedimentation of Colloidal Nanoparticles in Solution and Its Study Using Quantitative Digital Photography 2017.0 42 .pdf application/pdf 10863 1219 63 Johanna Midelet, Afaf El-Sagheer, Tom Brown, Antonios Kanaras, Martinus H. Johanna Midelet, Afaf El-Sagheer, Tom Brown, Antonios Kanaras, Martinus H. For stable and dilute solutions of sufficiently large particles, the sedimentation behaviour (Figure 1) is a result of the particular interplay of nanoparticle hydrodynamics, and gravitational and Brownian forces. The aim of the present work was to monitor the nanoparticle sedimentation process and the establishment of a concentration gradient using quantitative digital photography, and model this with a simple mathematical dense suspended particles in a gravitational field (Eparticle = mbgz), illustrating that the digital image of the gold nanoparticle solution at equilibrium Experimental concentration profiles of several settling solutions of gold nanoparticles were obtained from digital photographs taken at different moments. to obtain sedimentation equilibrium for gold colloid solutions in a centrifuge Table 2 contains the calculated RCF values needed for complete centrifugation of gold colloids in typical Eppendorf-type vials (liquid height ./cache/work_5isjabbvajgmfhup4p3ec7j75i.pdf ./txt/work_5isjabbvajgmfhup4p3ec7j75i.txt