A nonvolatile memory cell which is highly scalable includes a cell formed in a triple well. Cyanobacteria are produced in a continuous culture, then lyzed, the cells pelleted and extracted, and the extract purified using an organic solvent-aqueous mixture and repeated passage through a diatomaceous earth column. A silicon on dielectric layer is formed on the resulting structure where the bit line is formed. In the double-side read mode, simultaneously read image data on the right and reverse sides of a document are transferred at a first rate.