Protein-coated disc
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This article contains information about a scheduled or expected future
product. It may contain preliminary information that does not reflect the final version of the product. |
Protein-Coated Disc (PCD) is a theoretical optical disc technology currently being developed by Professor V. Renugopalakrishnan, formerly of Harvard Medical School and Florida International University. PCD would greatly increase storage over Holographic Versatile Disc optical disc systems. It involves coating a normal DVD with a special light-sensitive protein made from a genetically altered microbe, which would in principle allow storage of up to 50 Terabytes on one disc. Working with the Japanese NEC Corporation, Renugopalakrishnan's team has created a prototype device and estimate that a USB disk will be commercialised in 12 months and a DVD in 18 to 24 months as of July, 2006[1].
The technology uses the photosynthetic pigment bacteriorhodopsin created from bacteria.
Technology
The information in such discs would be highly dense, due to being stored in proteins that are only a few nanometres across. However, a method to address individual protein molecules to read and write information to and from them would have to be developed in order to achieve the theoretical 50 TB capacity. Practically, capacity would probably be limited by the size that addressing light can be focused to, so a DVD-sized disc might be able to hold ~50 GB, or perhaps ~200 GB if nearfield optics were used.
See also
References
- ^ DVD uses bug protein to store data. ABC (2006-07-07).
External links
- Protein-Coated Disc (English). ANI (2006-07-08).
- Protein Coated Discs Engadget
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