Synthesis of Gold Nanoflowers and their High SERS Performance

Anisotropic nanoparticles show unusual and extraordinary physical and chemical properties. Herein, we report a simple and facile seeded growth strategy for the synthesis of highly complex flower-like gold nanoparticles with plasmon resonance band at around 650 nm. The high electromagnetic fields achieved at specific locations of the synthesized gold nanoflowers are found to be very efficient SERS substrates, especially with an incubation time of 24 hours.