NOVELTY - The membrane comprises: a first layer (4) of a polymer having a high oxygen permeability; a second supporting layer (8) made of a woven or a nonwoven material, where both layers are dot laminated or pattern laminated together using an adhesive; and a third layer as a current collector layer. The third layer is made of fibers, infused with materials consisting of carbon nanoparticles, carbon nanotubes, fragments of nano-size carbon fibers and combinations of the fibers. The fibers and graphitic carbon or composites are electroplated before to infusion of nanotubes.    USE - The semi permeable membrane is useful as an active packaging or air cathodes for microbial fuel cell, for microbial electrodialysis, for water desalination and hydrogen gas production; and a cover in oxygen scavenging to preserve shelf life of foodstuffs, and in a replacement of airlift reactors in biochemical reactors.    ADVANTAGE - The semi permeable, strong, water tight and self-sustainable membrane exhibits high oxygen permeability.    DETAILED DESCRIPTION - The membrane comprises: a first layer (4) of a polymer having a high oxygen permeability; a second supporting layer (8) made of a woven or a nonwoven material, where both layers are dot laminated or pattern laminated together using an adhesive; and a third layer as a current collector layer. The third layer is made of fibers infused with materials consisting of carbon nanoparticles, carbon nanotubes and fragments of nano-size carbon fibers, and graphitic carbon and composites. The fibers and graphitic carbon or composites are electroplated before to infusion of nanotubes. The third layer is dot laminated or pattern laminated with the first layer. The membrane is discontinuously coated with a coating composition comprising carbon based powders, micropowders, nanotubes and/or carbon fiber fragment components. The dot lamination or pattern lamination is made with a cyanoacrylate gel adhesive. The coating is performed by a dot clustering according to a geometry, which defines a coding functionality, and consists of a circle geometry containing various dot sizes and dot densities, triangular geometry and code bar dotting arrangements. The coating composition comprises reactive tracers having an electrochemical activity, and consists of metals, metal oxides, transition metals, metal clusters, organic compounds, and/or organometallic complexes. The organic compound exhibits electro-activity such as oxidation-reduction electron transfer and metal organic blends.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a semi permeable membrane as air cathodes for microbial fuel cells.    First layer (4)    Second supporting layer. (8)