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research article

Supramolecular Nanostamping:  Using DNA as Movable Type

Yu, A. Amy
•
Savas, Tim A.
•
Taylor, G. Scott
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2005
Nano Letters

Here we present a novel printing technique (that we call supramolecular nanostamping), based on the replication of single-stranded DNA features through a hybridization-contact-dehybridization cycle. On a surface containing features each made of single-stranded DNA molecules of known sequence, the complementary DNA molecules are hybridized, spontaneously assembling onto the original pattern due to sequence-specific interactions. These complementary DNA strands, on the end that is assembled far from the original surface, are 5' modified with chemical groups ("sticky ends") that can form bonds with a target surface that is brought into contact. Heating induces dehybridization between DNA strands, leaving the original pattern on the original surface and the copied pattern on the secondary substrate, and thus stamping (see Figure 1). Molecular recognition provides the unique and disruptive ability of transferring large amounts of information in a single printing cycle, that is the simultaneous stamping of spatial information (i.e., the patterns) and of chemical information (i.e., the features' DNA sequence - their chemical composition). This method combines high resolution (< 40 nm) with the advantage of an exponential increase in the number of masters; in fact, any printed substrate can be reused as a master. Patterns fabricated via very different lithographic techniques can be replicated.

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Type
research article
DOI
10.1021/nl050495w
Author(s)
Yu, A. Amy
Savas, Tim A.
Taylor, G. Scott
Guiseppe-Elie, Anthony
Smith, Henry I.
Stellacci, Francesco  
Date Issued

2005

Publisher

American Chemical Society (ACS)

Published in
Nano Letters
Volume

5

Issue

6

Start page

1061

End page

1064

Subjects

GOLD SURFACES

•

LITHOGRAPHY

•

NANOFABRICATION

•

FABRICATION

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
SUNMIL  
Available on Infoscience
June 6, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/68405
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