By a simple method single suspended carbon nanotubes (CNTs) are deposited at predetermined locations on a pre-patterned device. A narrow trench is first formed on the device at the desired location for depositing a CNT. A fluid drying deposition process is then used to mount the CNT at the chosen location. A droplet of a solvent containing the CNTs in suspension is deposited at the desired location, and the solvent is allowed to evaporate. This leaves the CNT bridging the trench at the selected location. The effect is enhanced by applying an electric field. The method is also applicable to other nano-elongated objects such as nanowires and biomolecules.