A personal nanoparticle sampler is disclosed to include a pre-classifier, a nozzle, a connector and a final filter pack. The hinge allows at least one of the two bodies to pivotally move about an axis so that the wireless device can be switched between a closed position in which one of the bodies is substantially arranged on top of the other and an open position in which the first body extends away from the hinge along a first direction and the second body extends away from the hinge along a second direction. In a particular embodiment the storage capacitor is a second MOS transistor having a thicker gate dielectric layer than the dielectric layer of the programmable MOS transistor.