A flexible electronic device is made up of nanostructures. A friction-reducing layer, including one or more of -Al2O3, -Al2O3 and nanocrystalline Ti and having a thickness of from about 1 to about 5 m, can be adjacent to the further layer. In the second cylinder-piston unit there is a freeze-dried active pharmaceutical ingredient. The jacket member is in electrical contact with the insulated wire via the blank uninsulated portion to thereby form a measuring junction. Yet another embodiment of the cleaning head utilizes an enclosed compartment with slots defined in upper and lower surfaces for receiving a slat through the compartment.