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. 2020 Nov 24;33(1):2005448. doi: 10.1002/adma.202005448

Figure 11.

Figure 11

Disk sensor for influenza A virus detection. a–f) Fabrication process: a) Ag‐coated lead zirconate titanate (PZT) plate of 100 µm thickness; b) plate after incubation in 98% nitric acid solution; c) Au‐coated plate (coating thickness: 50 nm); d,e) 4 mm disk cut with chopped carbide grade from laminated Au‐coated plate; f) holder that clamps disk in the center. g) Resonance frequency shift as a function of time for different virus concentrations; and h) frequency shift as a function of surface stress due to virus concentrations. a–h) Reproduced under the terms of the CC‐BY Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0).[ 84 ] Copyright 2019, The Authors, published by The Royal Society.