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Table 2 Au/graphene-PDDA and their SERS intensity integral of S. aureus (integrated range of SERS intensity, 700~770 cm−1)

From: Fabrication of Gold Nanoparticles/Graphene-PDDA Nanohybrids for Bio-detection by SERS Nanotechnology

Au/graphene-PDDA SERS intensity*10−3 (integral)
1/2 43.89 ± 4.64
2/1 48.30 ± 6.33
4/1 114.26 ± 14.95
8/1 64.39 ± 4.11
16/1 47.39 ± 1.90
Au 29.75 ± 3.60