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A 16-bit parallel processing in a molecular assembly.

ABSTRACT: A machine assembly consisting of 17 identical molecules of 2,3,5,6-tetramethyl-1-4-benzoquinone (DRQ) executes 16 instructions at a time. A single DRQ is positioned at the center of a circular ring formed by 16 other DRQs, controlling their operation in parallel through hydrogen-bond channels. Each molecule is a logic machine and generates four instructions by rotating its alkyl groups. A single instruction executed by a scanning tunneling microscope tip on the central molecule can change decisions of 16 machines simultaneously, in four billion (4(16)) ways. This parallel communication represents a significant conceptual advance relative to today's fastest processors, which execute only one instruction at a time.

SUBMITTER: Bandyopadhyay A

PROVIDER: S-EPMC2268776 | biostudies-literature | 2008 Mar

REPOSITORIES: biostudies-literature

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A 16-bit parallel processing in a molecular assembly.

Bandyopadhyay Anirban A Acharya Somobrata S

Proceedings of the National Academy of Sciences of the United States of America 20080310 10

A machine assembly consisting of 17 identical molecules of 2,3,5,6-tetramethyl-1-4-benzoquinone (DRQ) executes 16 instructions at a time. A single DRQ is positioned at the center of a circular ring formed by 16 other DRQs, controlling their operation in parallel through hydrogen-bond channels. Each molecule is a logic machine and generates four instructions by rotating its alkyl groups. A single instruction executed by a scanning tunneling microscope tip on the central molecule can change decisi ...[more]

PMID: 18332437

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