Table 3 Peaks of BSA antigen immune react on the chip single layer Fe2O3.

From: Improving the SERS signals of biomolecules using a stacked biochip containing Fe2O3/Au nanoparticles and a DC magnetic field

Functional group

Region (cm−1)

Chip with IgG

IgG + BSA

CC aliphatic

359.6

8.0

2.2a

S–S

442.8

8.3

2.2

CC bond

1116

10.7

3.5

C=S

1248

n/a

3.0

C–(NO2)

1340–1400

9.6

5.0a

C=C

1600–1700

n/a

1.6

C=O

1700–1850

n/a

1.5

C≅C

2079

5.8

4.0

  1. aSignals of BSA antigen didn’t showed in the measured with gold ptls chip.
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