杉精油によるAuナノ粒子の合成に関する研究

Cedar wood extract initiated synthesis of gold nanoparticles

Parajuli, D.; 広田 耕一; 瀬古 典明

Parajuli, D.; Hirota, Koichi; Seko, Noriaki

In an attempt to fast and easy preparation of gold nanoparticles for industrial applications, as for example, higher conductivity carbon nano tubes, aqueous extract of Japanese Cedar Wood Powder (CWP) was used as a Au(III) reducing agent as well as the nanoparticle stabilizer. A mixture of CWP-extract and Au(III) solution yielded gold nanoparticles of 50 nm. However, after certain time span the particles were coagulated. When the extract was irradiated by -rays, it developed the stabilizing property as well. The UV-vis study revealed that 40 kGy is the optimum irradiation dose for the stability and high yield.