“…A pristine Au, control, and NN_1 were used as the detection reference for SERS measurement. The average spectra of FB and FaDu-cells have prominent spectral peaks at 617, 795, 1000, 1031-1036, 1154~1156, 1190~1196, 1326, 1449~1150, 1583, and 1602~1603 cm -1 [7], [13]- [16]. These spectral features arise from the molecular vibrations of cell components such as lipids, nucleic acids, and protein, as listed in Table 1.…”