RATE PROCESS OF THE COAGULATION OF NANOPARTICLES

K. Kimura
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K. Kimura: Faculty of Science, Himeji Institute of Technology, Kanaji, Kamigori-cho, Hyogo 678–12, Japan

Surface Review and Letters (SRL), 1996, vol. 03, issue 01, 1219-1222

Abstract: Nanometer-sized gold particles dispersed in organic liquids coagulate under the influence of addition of salt or illumination of Mie resonance irradiation. It is derived that the van der Waals attractive force can be enhanced by the excitation of surface plasmon, hence the rate of coagulation is accelerated through the DLVO (Derjaguin, Landau, Verway, Overbeek) potential among the particles. The coagulation rate and the stability ratio are calculated within a framework of DLVO theory.

Date: 1996
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DOI: 10.1142/S0218625X96002205

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