Metallic nanoparticles: synthesis, characterisation and application
by Nguyen Hoang Luong, Nguyen Ngoc Long, Le Van Vu, Nguyen Hoang Hai, Phan Tuan Nghia, Nguyen Thi Van Anh
International Journal of Nanotechnology (IJNT), Vol. 8, No. 3/4/5, 2011

Abstract: Colloidal sphere-like gold nanoparticles were prepared from an HAuCl₄ aqueous solution by the chemical reduction method and by using X-ray irradiation, while rod-like gold nanoparticles were synthesised according to the seed-mediated growth method and by sonoelectrochemistry. Gold nanoparticles exhibit fcc structure. Sphere-like gold nanoparticles have a diameter of 20-60 nm, while rod-like gold nanoparticles have an aspect ratio of 2–4. In UV-vis spectra, the absorption bands related to surface plasmon resonance were observed. Co-Pt nanoparticles of 5-20 nm were prepared by electrochemistry, while Fe-Pt nanoparticles with a size of 5-10 nm were prepared by sonoelectrochemistry. After annealing, these magnetic nanoparticles showed a high coercivity. The gold nanoparticles were functionalised for detecting breast cancer cells.

Online publication date: Fri, 21-Jan-2011

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