Process for producing gold nanoparticles

Details Process for producing gold nanoparticles Process for producing gold nanoparticles

C - Chemistry, Metallurgy

07

F

C07F 1/12 (2006.01) C01G 7/00 (2006.01)

Patent

CA 2473429

Gold nanoparticles having a particle size of 4-15 nM are synthesized by the reduction of hydrogen tetrachloroaurate (III) trihydrate using a suitable reducing agent such as sodium citrate in the presence of unmodified .alpha., .beta. or .gamma.-cyclodextrin. The particle size is dependent upon the type and concentration of cyclodextrin and the reducing agent concentration. Gold nanoparticles having a particle size of 2-4 nM are produced by the reduction of hydrogen tetrachloroaurate(III) trihydrate using sodium borohydride in the presence of cyclodextrins.

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