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Separate molecular layers of glucoamylase (GA) and glucose oxidase (GOD) were assembled on an ultrafilter by layer-by-layer adsorption using poly(ethyleneimine) (PEI) as a polycation. An aqueous starch solution was placed on the ultrafilter which was covered by GA and GOD layers in various sequential arrangements with intervening polyion complex layers of PEI and poly(styrenesulfonate) (PSS). GA hydrolyzed...
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