Abstract:

Gold element occupies a crucial position in the history of science and technology. Ernest Rutherford figured out the basic architecture of the atom by shooting alpha-particles at gold foil. Michael Faraday's experiments with colloidal gold gave an early hint of today's nanotechnology revolution. The gold electrodes were used to make the chips that triggered the information revolution. Gold nanoparticles are central to the development of gold technologies, such as diagnostic testing tools, plasma effects and highly effective catalysts. In this paper, the history, application and future development of nano-gold are discussed and summarized in vivid language with examples. Meanwhile, the relevant physical and chemical principles are also introduced, so that readers can understand the relevant knowledge of nano-gold in interesting reading.

Key words: Gold nanoparticles, Nanomaterials, Diagnostic testing tools, Catalysts