Ultrasensitive Detection of 2,4-Dinitrophenol Using Nanowire Biosensor

<div>Time dependencies of the normalized differential signal from the SOI-NW sensor obtained upon repeated detection of DNP. Experimental conditions: DNP concentration 3.0 × 10<sup>−14</sup> M in deionized water; <i>V</i><sub>g</sub> = 20 V, <i>V</i><sub>ds</sub> = 0.2 V total solution volume in the cell 450 <i>μ</i>L. Arrows indicate addition of DNP solution and wash with water.</div>

Journal of Nanotechnology

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Figure 4: Ultrasensitive Detection of 2,4-Dinitrophenol Using Nanowire Biosensor 