Browse Prior Art Database

Light Controlled Memory Having a Memory Cell of Genetic Material

IP.com Disclosure Number: IPCOM000093775D
Original Publication Date: 1966-Feb-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Duda, WL: AUTHOR [+2]

Abstract

Encapsulated ribonucleic acid RNA, and other appropriate organic material, such as deoxyribonucleic acid DNA, functions as a light controlled memory cell. RNA molecules, for example, are in the form of two interlocking helixes joined by weak hydrogen bonds to form a cylindrical column. The interlocking helixes of RNA are separated into random coils by heating until the hydrogen bonds joining the helixes break. RNA molecules which have been separated reform their cylindrical structure when the temperature is reduced. The destruction and reformation of these hydrogen bonds require on the order of 10-9 to 10-10 seconds. The light transmission characteristics of RNA in the helical form differs substantially from that of the random coil form.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 53% of the total text.

Page 1 of 2

Light Controlled Memory Having a Memory Cell of Genetic Material

Encapsulated ribonucleic acid RNA, and other appropriate organic material, such as deoxyribonucleic acid DNA, functions as a light controlled memory cell. RNA molecules, for example, are in the form of two interlocking helixes joined by weak hydrogen bonds to form a cylindrical column. The interlocking helixes of RNA are separated into random coils by heating until the hydrogen bonds joining the helixes break. RNA molecules which have been separated reform their cylindrical structure when the temperature is reduced. The destruction and reformation of these hydrogen bonds require on the order of 10-9 to 10-10 seconds. The light transmission characteristics of RNA in the helical form differs substantially from that of the random coil form. Additionally, RNA molecules can be oriented by an electrical field in the vicinity of an RNA solution. The light transmission characteristics of the RNA molecules is affected by the direction of orientation of the RNA with respect to incident light.

The drawing shows an encapsulated RNA memory cell 2. The latter consists of transparent wall portions 4 enclosing solution 6 of RNA. Heat sinks 8, above and below the encapsulated RNA cell 2 portion control the temperature of the cell. Electrodes 16 can be used to generate an electric field to orient the RNA molecules.

In functioning as a memory cell, the transmission characteristics of the two stable states of RNA, the helical form and the r...