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A digital image is stored on a single molecule

Avi Blizovsky

https://www.hayadan.org.il/atomicphoto.html

An image consisting of over a thousand bits of data can be stored in the atoms of a single molecule. This is what American researchers claim.

Bing Fung Bing Fung)) and his colleagues at the University of Oklahoma found that 19 hydrogen atoms in a single crystal molecule can store at least 1024 bits of information. The data is stored in a complex interaction of the magnetic moment of the protons.
Fang hopes that the technique, known as molecular photography, can be used to store a huge amount of digital information in a small space, but he admits that the process is currently experimental. "This is a very preliminary step towards using the spin of the nuclei to process molecular information, he said in an interview with the New Scientist magazine.
In their example, the researchers used a molecule to store a black and white image measuring 32 by 32 squares. The image is binary coded into 1's and 0's and can easily be processed or retrieved by a computer.

The researchers ignited electromagnetic pulses that include 1024 different radio frequencies at a frequency close to 400 MHz on the molecule. Each frequency has its own amplitude, and it represents 1, and any other amplitude represents zero. This is how the data was imprinted on the molecule.
Using an NMR device, the researchers were able to read the data by firing a second pulse whose frequencies were shifted - again towards the molecule and measuring the changes made in the magnetic resistance of the nuclei.
Fang says that it would be possible to store data using such a nucleus but he is aware that the nature of the spin interactions is not well understood. "We know how they behave in simple cases, but interactions in such molecules are quite complicated." said.

For news in New Scientist

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