Application of Gold Nanoparticles to Paint Colorants

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  • 金ナノ粒子の色材・意匠材料への応用
  • キン ナノ リュウシ ノ シキザイ イショウ ザイリョウ エノ オウヨウ

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  Metal nanoparticles possess unique properties that they do not exhibit in their bulk states. One of these properties is the color due to surface plasmon resonance. Gold nanoparticles appear red. This color has been utilized in glass for a long long time. In recent years, highly concentrated pastes of gold and silver nanoparticles have been successfully produced by using a special type of protective polymer and a mild reductant. The paste of gold nanoparticles can be used for paint and other materials as red colorants.<br>   In this article,application examples of gold nanoparticles as colorant are introduced.<br>   Recently, methods for producing bimetal nanoparticles such as gold/silver and gold/copper have been developed. These nanoparticles allow colors from yellow to green to be created. These methods and colors they produce are also described in this article.<br>

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