Shape and size separation of gold nanoparticles using glucose gradient density

Marta Gordel; Joanna Olesiak-Banska; Katarzyna Matczyszyn; Claude Nogues; K. Pawlik; Malcolm Buckle; Marek Samoc

doi:10.1117/12.922097

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1 May 2012 Shape and size separation of gold nanoparticles using glucose gradient density

Marta Gordel, Joanna Olesiak-Banska, Katarzyna Matczyszyn, Claude Nogues, K. Pawlik, Malcolm Buckle, Marek Samoc

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Proceedings Volume 8424, Nanophotonics IV; 84242F (2012) https://doi.org/10.1117/12.922097
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We synthesized a mixture composed of gold nanoparticles of various shapes using the wet chemistry method. The final solution contained long nanorods, balls, disks and different spherical nanoparticles. To separate particles of individual shapes from the reaction mixture, the solution was centrifuged in a glucose density gradient. A distribution of nanoparticles based on their diameters was observed and each section was collected independently and each type of nanoobjects was characterised separately. Finally, the difference in nanoparticle shapes depending on the presence of Ag⁺ ions in the growth solution is reported and its influence on the separation is discussed.

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Marta Gordel, Joanna Olesiak-Banska, Katarzyna Matczyszyn, Claude Nogues, K. Pawlik, Malcolm Buckle, and Marek Samoc "Shape and size separation of gold nanoparticles using glucose gradient density", Proc. SPIE 8424, Nanophotonics IV, 84242F (1 May 2012); https://doi.org/10.1117/12.922097

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