TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The inorganic microparticle has a spherical, ellipsoidal, or cubic shape. The inorganic microparticle is metals, metal oxides and/or ceramics, preferably zirconia, titania, silica, ceria, alumina, iron oxide, vanadia, zinc oxide, antimony oxide, tin oxide and/or nickel oxide. The inorganic microparticle has an average particle size of greater than 0.1-500 mu m. The inorganic nanoparticle has an average particle size of 1-100 nm. The inorganic microparticle is hollow inorganic microparticles and/or solid inorganic microparticles. The multiplicity of (I) has a concentration of at least 0.05 wt.%. Preferred Composition: The composition further comprises a film forming material.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The linking compound is an alkoxysilane, a halogenated silane and/or an alkoxytitanium. The linking compound comprises alkoxysilane (R is 1-10C). The mixture further comprises a second solvent and second linking compound. The propellant is 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane, carbon dioxide, nitrogen, nitrous oxide, air, isobutane, dimethyl ether and/or propane. EXAMPLE - A mixture of Nalco 2326 colloidal silica (5.02 g), and an 80:20 (wt.%) solvent blend of ethanol (EMD):methanol (VWR) (119 g) was added to a 2 l three-neck round bottom flask equipped with a mechanical stirrer and mixed for 5 minutes at room temperature. Isooctyltrimethoxysilane (0.33 g) and an additional of the ethanol:methanol solvent blend (580 g) was added to the 2 l round bottom flask and stirred for an additional 5 minutes at room temperature. The contents within the flask were heated in an oil bath set at 80 degrees C and stirred for 3 hours. Next, glass bubbles (200 g) were added to the mixture and stirred at 80 degrees C for an additional 16 hours. The mixture was transferred to crystallizing dishes and dried in a convection oven at 130 degrees C for 2 hours. The dried mixture (10 g) was added to a flask and stirred with an excess of toluene (40 g) for 5 hours at 20 degrees C and filtered. The filtrate (toluene) was transferred to a 500 ml round bottom flask, and concentrated to recover unreacted 5 nm silica nanoparticles.