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2015 ; 6
(11
): 6050-6058
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Molecular computing: paths to chemical Turing machines
#MMPMID28717447
Varghese S
; Elemans JAAW
; Rowan AE
; Nolte RJM
Chem Sci
2015[Nov]; 6
(11
): 6050-6058
PMID28717447
show ga
To comply with the rapidly increasing demand of information storage and
processing, new strategies for computing are needed. The idea of molecular
computing, where basic computations occur through molecular, supramolecular, or
biomolecular approaches, rather than electronically, has long captivated
researchers. The prospects of using molecules and (bio)macromolecules for
computing is not without precedent. Nature is replete with examples where the
handling and storing of data occurs with high efficiencies, low energy costs, and
high-density information encoding. The design and assembly of computers that
function according to the universal approaches of computing, such as those in a
Turing machine, might be realized in a chemical way in the future; this is both
fascinating and extremely challenging. In this perspective, we highlight
molecular and (bio)macromolecular systems that have been designed and synthesized
so far with the objective of using them for computing purposes. We also present a
blueprint of a molecular Turing machine, which is based on a catalytic device
that glides along a polymer tape and, while moving, prints binary information on
this tape in the form of oxygen atoms.