Surface Charge Modulation and Reduction of Non-Linear Electrolytic Screening in FET-Based Biosensing

We experimentally investigate the influence of non-linear electrolytic screening by the electric double layer (EDL) and its impact on the field-effect transistor (FET) sensitivity to charged (bio)molecules. We use DNA hybridization to a PNA capture probe layer as model system. By co-depositing posit...

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