The basic idea of Biological Storage or Protein Memory is to represent the 1's and 0's (Binary) using Chromophoric (Colour Changing) DNA. Two different colour states of a suitable Synthetic DNA (Deoxyribonucleic acid) would be used and an ultraviolet light would read and write data. Several of these memory units would be linked to a support substrate to form a memory cell. This form of technology should be capable of transferring data at a relatively high speed as there are no moving parts.
This idea was granted a US Patent [http://patft.uspto.gov/netacgi/nph-Parser?Sect1PTO1&Sect2HITOFF&dPALL&p1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r1&fG&l50&s16,385,080.PN.&OSPN/6,385,080&RSPN/6,385,080 No.6,385,080] in May 2002. It was submitted by Michael J Heller & Eugene Tu of Nanogen Inc.
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