TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Metal: The metal alkoxide is an alkoxide of a metal chosen from a lanthanide metal such as cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium or lutetium, transition metal such as scandium, titanium, vanadium, chromium, manganese, zirconium or zinc, and alkaline earth metal such as beryllium, magnesium, calcium, strontium or barium, aluminum and straight or branched 1-6C, preferably 1-4C alkanol.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The non-ionic surfactant is acetyl acetone or ethylene glycol, preferably acetyl acetone. The polar organic solvent is 1-6C alkanol, such as methanol, ethanol, propanol, isopropanol, butanol, isobutanol, secondary butanol, tert-butanol, pentanol, neopentanol, secondary pentanol and/or hexanol, preferably ethanol. Preferred Method: The electrophoretically deposited nanoporous titanium oxide film is filled with a low boiling point and low reactive organic liquid, followed by covering of the wet layer with a thin polymeric foil. The low boiling point and low reactive organic liquid is pentane, hexane and/or heptane. The conductive substrate is fluorine-doped tin oxide conductive glass or conductive plastic. The sol-gel electrophoretic deposition is carried out with a stable solution of charged inorganic-organic polymeric material produced from metal alkoxide(s). The solution of charged inorganic-organic polymeric material is prepared by polymerization of at least one metal alkoxide by sol-gel method in presence of a condensation inhibitor which forms hydrogen ions. The inhibitor consists of an alcoholic solution containing additives such as iodine, acetone and water. The metal alkoxide is preferably titanium tetra isopropoxide (Ti(OiC3H7)4), aluminum secondary tributoxide (Al(OsecC4H9)3) and/or magnesium diethoxide (Mg(OC2H5)2). Preferred Alcohol: The alcohol contained in the alcoholic solution is ethanol, isopropanol and/or isobutanol, preferably ethanol.    TECHNOLOGY FOCUS - POLYMERS - Preferred Material: The polymeric foil is 1-30 microns polyethylene foil. Preferred Method: The coating of electrophoretically deposited nanoporous titanium oxide film is carried out with a thin conformal metal oxide polymeric shell by sol-gel electrophoretic deposition.