The device has a nanowire comprising a conductive area (2) and an insulating or dielectric area (4) that does not occupy entire thickness of the nanowire. Current flows through the nanowire from one of ends of the wire to other end. The conductive area is made of doped semiconducting material e.g. piezoresistive material, or metallic material. Recess areas (6, 6') are provided at the former end, where the recess area has electric contacts (8, 8'). Electrostatic, thermoplastic or magnetic actuating unit actuates the nanowire. Movable masses are fixed at the former end.