TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The inorganic particles are chosen from silicon dioxide, aluminum oxide, titanium dioxide, tin oxide, cerium oxide, zirconium oxide, barium titanate and yttrium oxide, preferably mesoporous silica particles having tap density of 0.1-1 g/cm3 and average particle diameter of 0.1-50 mu m. The inorganic particles (B) are chosen from silicon dioxide, aluminum oxide, titanium dioxide, tin oxide, cerium oxide, zirconium oxide, barium titanate, yttrium oxide, magnesium oxide, nickel oxide, calcium oxide, zinc oxide and silicon carbide.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The active sites are chosen from compounds of formulae: -COO, -NH2, -CONH2, -PO3H2, -SH, -SO3H, -SO2H, -NO2, and -O(CH2CH2O)nH and 3-30C aryl group. The silane coupling agent is chosen from 16 compounds e.g. vinyltrimethoxysilane, 2-(3,4-epoxy cyclohexyl)ethyltrimethoxy silane, 3-glycidoxypropyl trimethoxysilane, 3-glycidoxypropyl methyldiethoxysilane and N-2,3-aminopropyltrimethoxysilane.n=0-5.Preferred Process: The active sites are formed by treating the inorganic particles using silane coupling agent, and then plasma-processing the surface of the inorganic particles.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The porous polyolefin substrate is polyethylene separation film, polypropylene separation film, polyethylene/polypropylene bi-layered separation film, polyethylene/polypropylene/polyethylene tri-layered separation film or polypropylene/polyethylene/polypropylene tri-layered separation film, and is plasma processed or acid treated. The acrylic acid-based polymer is acrylic acid polymer derivative, preferably vinylpyrrolidone-acrylic acid copolymer, methyl methacrylate-acrylic acid copolymer, methyl methacrylate-methacrylic acid copolymer, polyacrylic acid or polymethacrylate. The complex further contains 1-20 pts. wt. inorganic particles (B). Preferred Property: The thickness of active layer is 0.1-100 mu m.