Figure 5

Intensity comparison of SERS signals at 1180, 1308, 1360, 1509 and 1648 cm−1 of 20 μM R6G adsorbed on Au NPs and 111, 212 and 222 NAs, respectively.

Intensity comparison of SERS signals at 1180, 1308, 1360, 1509 and 1648 cm−1 of 20 μM R6G adsorbed on Au NPs and 111, 212 and 222 NAs, respectively.