A drop of cerium oxyde (CeO2) nanoparticles (20nm diameter) is deposited on an Immersion Surf (new generation of microscope slide provided by Nanolane). The brownian mouvement of the nanoparticles is observed in water with a standard optical microscope (Sarfus technique). No labelling nor pre-treatment is needed.
Source: http://www.nano-lane.com
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