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. 2014 Jun 6;5:4085. doi: 10.1038/ncomms5085

Figure 4. On-chip absorption measurement.

Figure 4

The entire unpassived sensor device is submerged in a H2O/C2H5OH solution with H2O concentration from 0 to 60%. The detector signal fits to Beer–Lambert law, with a deviation at low concentrations due to detector saturation.