Inderscience Publishers

Metallic nanoparticles: synthesis, characterisation and application

Colloidal sphere-like gold nanoparticles were prepared from an HAuCl
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.

Keywords: gold nanoparticles, Co-Pt nanoparticles, Fe-Pt nanoparticles, optical properties, magnetic properties, nanotechnology, platinum, cobalt, iron, breast cancer, cancer cell detection, metallic nanoparticles, cancer cells

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