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A new route for the formation of shape-selective Au nanoparticles (NPs) has been demonstrated. The reduction of Au(III) ions was done with alkaline 2,7-DHN in CTAB micellar media under 30 min of continuous UV-irradiation. The reaction results in uniform Au nanospheres and Au nanowires. With the change in Au(III) ion to CTAB molar ratio, the particles' size and shape can be tuned. Au nanorods and nanoprisms are synthesized via seed mediated growth and microwave heating methods and the particlesdoi:10.1039/c2tc00315e fatcat:5daucvovc5fqzmsdaf563nykoq