Abstract: The disclosure relates to a method for improving the selectivity of a membrane, specifically of a membrane comprising a blend of i) a polysulfone, polyethersulfone or polyarylethersulfone and ii) polyvinylpyrrolidone, characterized in that the membrane is coated with polydopamine and heparin in a one-step or two-step reaction or by in situ modification with polydopamine followed by coating with heparin. The disclosure further relates to a process for producing such modified membranes having an improved selectivity, and to a filtration/diffusion device comprising the membrane which can be used, for example, in hemodialysis applications.

Abstract: The present invention is a heat shield apparatus for shielding a solenoid of a starter from heat generated by an engine. The apparatus is provided with a heat shield positionable between the engine and the solenoid. A clipping assembly is connected to the heat shield for clippingly and detachably connecting the heat shield to the solenoid of the starter such that the heat shield is maintained a predetermined distance from the solenoid and in a predetermined position whereby the heat shield shields the solenoid from heat.