Researchers at the Gwangju Institute of Science and Technology (GIST), Princeton and MIT have used Hummingbird Scientific’s liquid cell TEM specimen holder to explore growth kinetics of spiky nanoparticles. They report in their latest paper in the Journal of the American Chemical Society that these particles evolves via a mixture of reaction and formation-limited growth, followed by formation-limited growth. Using experimental data and a theoretical model they propose a new method for synthesizing a Au SNP whose size, morphology, SPR, and density can be sensibly manipulated without adding reducing or capping agents.

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Reference:

Wan-Gil Jung, Jeung Hun Park, Yong-Ryun Jo and Bong-Joong Kim, Growth Kinetics of Individual Au Spiky Nanoparticles Using Liquid-Cell Transmission Electron Microscopy, doi.org/10.1021/jacs.9b03718