A Novel Signal-Amplified Immunoassay for the Detection of C-Reactive Protein Using HRP-Doped Magnetic Nanoparticles as Labels with the Electrochemical Quartz Crystal Microbalance as a Detector

Table 1

Comparison of CRP levels in patient human serum samples (𝑛=3) determined using two methods.

Serum samples	The developed method	The classical ELIAS
	concentration (ng·mL^−1)	concentration (ng·mL^−1)
Sample 1	8.12 ± 0.21	8.5
Sample 2	5.31 ± 0.41	5.5
Sample 3	21.1 ± 0.22	22
Sample 4	1.1 ± 0.03	ND

*ND: not detected.