Supplementary Material for

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

Nam-Young Kim, Kishor Kumar Adhikari, Rajendra Dhakal, Zorigt Chuluunbaatar, Cong Wang, Eun-Soo Kim

Fusion Technology Centre, Kwangwoon University, 20 Kwangwoon-ro, Nowon-Gu, Seoul 139-701, South Korea.

Corresponding Author: Nam-Young Kim

E-mail:

Supplementary Table S1 | Measured values of the S-parameters with their standard deviations.

Glucose-Deionized Water Solution
S.N. / Con. (mg/mL) / C. F. (GHz)±
RSD (%) / S11 (dB) / S21 (dB)
1. / 0.25 / 0.642 ± 0.23 / 34.61 / 14.15
2. / 0.5 / 0.711 ± 0.49 / 32.23 / 13.37
3. / 1.0 / 0.761 ± 1.06 / 30.56 / 13.72
4. / 1.5 / 0.811 ± 0.28 / 28.40 / 14.38
5. / 2.0 / 0.855 ± 0.39 / 28.08 / 14.43
6. / 2.5 / 0.916 ± 0.27 / 28.97 / 14.82
7. / 3.0 / 0.974 ± 0.46 / 27.62 / 15.60
8. / 3.5 / 1.014 ± 0.18 / 26.31 / 15.76
9. / 4.0 / 1.080 ± 0.28 / 27.51 / 17.30
10. / 4.5 / 1.164 ± 0.48 / 32.20 / 16.95
11. / 5.0 / 1.189 ± 0.21 / 23.63 / 18.29
Human Serum
1. / 1.48 / 0.895 ± 0.50 / 24.88 / 15.18
2. / 1.68 / 0.934 ± 0.37 / 23.40 / 9.20
3. / 1.88 / 0.974 ± 0.35 / 23.17 / 10.54
4. / 2.08 / 1.014 ± 0.52 / 21.87 / 10.56
5. / 2.28 / 1.054 ± 0.61 / 19.71 / 11.59

S. N. = serial number Con. = concentration of glucose C. F. = centre frequency

Supplementary Table S2 | Values of the derived parameters from the measured S-parameters with their standard deviations.

Glucose-Deionized Water Solution
S.N. / Con. (mg/mL) / γ / Z (Ω) / R (Ω) / L (μH) / C (pF) / G (S/mm)
1. / 0.25 / 0.961 / 52.7 / 115.2 / 6.15 / 6.58 / 0.034
2. / 1 / 0.965 / 55.4 / 79.4 / 5.09 / 7.17 / 0.047
3. / 2 / 1.457 / 89.5 / 305.6 / 13.87 / 10.26 / 0.072
4. / 3 / 1.876 / 123.8 / 358.3 / 18.97 / 12.16 / 0.099
5. / 4 / 2.287 / 165.6 / 345.7 / 19.42 / 22.37 / 0.217
6. / 5 / 3.047 / 203.3 / 408.6 / 21.47 / 39.33 / 0.418

Note: The values of γ and Z are measured at 2 and 3.215 GHz, respectively.

R, L, C and G are expressed at maximum peak value indicated by resonance peak.