Figure 1.
Schematic diagram of the SPR sensor system and the WcBiM chip configuration.
Figure 2.
Both narrow and wide reflectance curves and their corresponding slopes and FWHMs.
Figure 3.
SPR reflectance curves and their derivatives of WcBiM and Au chips.
A) SPR reflectance curve for the WcBiM chip in comparison to the conventional Au chip. B) Derivatives of the reflectance curves with respect to the incident angle for both the WcBiM chip and the Au chip.
Figure 4.
SPR sensorgram of subsequent injection of anti-Aβ42, BSA, and Aβ42 after the SAM formation on the WcBiM chip. Inset: the magnified graph of the sensor response to Aβ42 (250 pg/ml).
Figure 5.
Calibration curve of the average SPR response to various Aβ42 concentrations ranging from 100 pg/ml to 2,000 pg/ml. The error bars represent the SD of three replicates.
Figure 6.
SPR sensorgram for the control experiment.