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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.7b01659
|2 doi
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|a eng
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|a Uprety, Bibek
|e verfasserin
|4 aut
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|a Directional Growth of DNA-Functionalized Nanorods to Enable Continuous, Site-Specific Metallization of DNA Origami Templates
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|c 2017
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 25.01.2019
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|a Date Revised 25.01.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a This work examines the anisotropic electroless plating of DNA-functionalized gold nanorods attached to a DNA origami template to fabricate continuous metal structures of rectanglar, square, and T shapes. DNA origami, a versatile method for assembling a variety of 2- and 3-D nanostructures, is utilized to construct the DNA breadboard template used for this study. Staple strands on selective sites of the breadboard template are extended with an additional nucleotide sequence for the attachment of DNA-functionalized gold nanorods to the template via base pairing. The nanorod-seeded DNA templates are then introduced into an electroless gold plating solution to determine the extent to which the anisotropic growth of the nanorods is able to fill the gaps between seeds to create continuous structures. Our results show that the DNA-functionalized nanorods grow anisotropically during plating at a rate that is approximately 4 times faster in the length direction than in the width direction to effectively fill gaps of up to 11-13 nm in length. The feasibility of using this directional growth at specific sites to enable the fabrication of continuous metal nanostructures with diameters as thin as 10 nm is demonstrated and represents important progress toward the creation of devices and systems based on self-assembled biological templates
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Gold
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|a 7440-57-5
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|a DNA
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|a 9007-49-2
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|a Jensen, John
|e verfasserin
|4 aut
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|a Aryal, Basu R
|e verfasserin
|4 aut
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|a Davis, Robert C
|e verfasserin
|4 aut
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|a Woolley, Adam T
|e verfasserin
|4 aut
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|a Harb, John N
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 33(2017), 39 vom: 03. Okt., Seite 10143-10152
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|x 1520-5827
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|g volume:33
|g year:2017
|g number:39
|g day:03
|g month:10
|g pages:10143-10152
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|u http://dx.doi.org/10.1021/acs.langmuir.7b01659
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