Anionic non-phospholipids, as well as lipid nanostructures formed therefrom, are disclosed herein. A transmitter produces and transmits a spread signal that comprises at least one known-value symbol spread by a plurality of non data-carrying orthogonal codes and data symbols spread by at least one data-carrying orthogonal code. Fluid to be filtered flows through the main filter element from an upstream dirty side to a downstream clean side, and flows axially in the hollow interior. The first mold has a first molding cavity and two positioning blocks separated by the first molding cavity. A work product may be migrated between lookup engines to complete the rule matching process.