title: Size and shape-tuned overgrowth on Au nanorods regulated by polyallylamine.
abstract: Au nanorods prepared by a photochemical method were used as seeds for the overgrowth of thin shell of gold by using a mild reducing agent, ascorbic acid at ambient conditions. The overgrowth rate along different crystal facets of the starting gold nanorods was regulated by the addition of polyallylamine. The shape of the resulting gold nanorods was different from the naturally overgrown Au nanorods without any additives.
authors.affiliation: Department of Chemistry, Chungnam National University, Daejeon, 305-764 Korea.
authors.forename: Yeong-Joon
authors.initials: YJ
authors.lastname: Kim
authors.forename: Gyoujin
authors.initials: G
authors.lastname: Cho
authors.forename: Jae Hee
authors.initials: JH
authors.lastname: Song
mesh_terms: D001205:Ascorbic Acid / Q000737:chemistry; D003460:Crystallization; D006046:Gold / Q000737:chemistry*; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D011073:Polyamines / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D011073:Polyamines; C063994:polyallylamine; D006046:Gold; D001205:Ascorbic Acid