Cascading of nanofilm processors by fluidic coupling elements

•Nanofilm processors are cascaded.•The cascade leads theoretically to a nanofilm processor with infinite lengths.•A new electrochemical method is presented. Nanofilm processors are based on the lateral anodic self-oxidation of a nanoscale aluminum electrode in the presence of a graphite counter electrode. The oxidation process operates slowly over a long period of time. There are electrical and fluidic limitations of the oxidation length and velocity during the lateral anodic self-oxidation process. With the integration of fluidic coupling elements, it is possible to realize a cascade of equivalent nanofilm processors, theoretically leading to a nanofilm processor with infinite lengths.