Figure 5 | Scientific Reports

Figure 5

From: Rapid, Sensitive and Reusable Detection of Glucose by a Robust Radiofrequency Integrated Passive Device Biosensor Chip

Figure 5

Scheme for the Measurement of S-parameters of the Resonator and Electrical Modeling of the IDC.

(a) Biosensing resonator fixed on the aluminum box and connected with the VNA for the measurement of S-parameters, (b) enlarged view of the fabricated resonator connected with the 50 Ω connector, (c) FIB image of the resonator surface bearing the glucose sample, (d) SEM image of the IDC and schematic image of the glucose sample using water and glucose molecules, (e) enlarged schematic view of a portion of the IDC including the equivalent circuit to estimate the net capacitance for the glucose samples of varying concentrations and (f) different layers of the IPD fabrication process of the proposed resonator.

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