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. 2022 Jan 1;12(2):891–909. doi: 10.7150/thno.62685

Figure 2.

Figure 2

Representative schematics of an antigen-antibody microfluidic biosensor. The biosensor consists of a bottom channel layer and a top sensing layer. The former allows loading of bio-fluids while the latter detects the presence of targeted biomarkers. The sensing layer contains capture antibodies specific to the target biomarker and fluorescent antibodies for visualisation and quantification.