title: Fabrication of gold nanoparticle/multi walled carbon nanotube hybrids by in situ reaction in water using poly(acryloyl beta-alanine).
abstract: Fabrication of a hybrid consists of gold nanoparticles and multi walled carbon nanotubes (MWCNTs) with the help of poly (amino acid) was investigated. Poly(acryloyl beta-alanine) was synthesized by precipitation polymerization in tetrahydrofuran. The polymers were used to form hybrids with MWCNTs in aqueous media. Subsequently, the polymer functionalized MWCNTs were fabricated by in situ formed gold nanoparticles. The fabrication by gold nanoparticles was confirmed by transmission electron microscopic analyses. The fabrication was attempted with different concentrations of lithium auric chloride solutions in the range of 0.1-1.2 mM in water. The lower concentration of the gold precursor solution resulted in the formation and attachment of gold nanoparticles without aggregation while the higher concentration above 1.0 mM led to the aggregation of gold nanoparticles. The gold nanoparticles were observed only on the surface of MWCNTs and none was in the bulk aqueous phase.
authors.affiliation: Department of Imaging System Engineering, Pukyong National University, Busan, 608-739, South Korea.
authors.forename: M Abdul
authors.initials: MA
authors.lastname: Khaleque
authors.forename: Thi Bao
authors.initials: TB
authors.lastname: Le Tran
authors.forename: Seong-Soo
authors.initials: SS
authors.lastname: Hong
authors.forename: Sungyong
authors.initials: S
authors.lastname: Seo
authors.forename: Hyun Gyu
authors.initials: HG
authors.lastname: Kim
authors.forename: Kwon Taek
authors.initials: KT
authors.lastname: Lim