Fig. 3: Aerosol detection based on ImmHR sensors.
a Misalignment tests between IR and read coil, including left, right, inward, outward displacement of 2 mm, respectively. b Influence of bending and twisting of IR on Fres readout. c Modulation of hydrogel thickness on Fres shift. d Resonant response of ImmHR sensors with PAAm hydrogel, antibody crosslinked hydrogel, and AuNPs-Ab crosslinked hydrogels. Error bars are displayed as mean ± σ (n = 3 independent experiments). e Calibration plot of resonant response versus SARS-CoV-2 NP, H1N1 HA, and RSV FP concentration in spiked aerosol, respectively. The results were acquired at 10 min with 1 × PBS as aerosol matrix. Error bars are displayed as mean ± σ (n = 3 independent experiments). f Resonant response to SARS-CoV-2 NP spiked aerosols with extended incubation time. Error bars are displayed as mean ± σ (n = 3 independent experiments). g Calibration plot of the wireless temperature sensor from 25 ~ 45 °C. Inset shows the structure of the temperature sensor. Error bars are displayed as mean ± σ (n = 3 independent experiments). h Real-time response of the temperature sensor in RT (blue) and breath (yellow). RT, room temperature.
