Impact of Polymer-Constrained Annealing on the Properties of DNA Origami-Templated Gold Nanowires

DNA origami-templated fabrication enables bottom-up fabrication of nanoscale structures from a variety of functional materials, including metal nanowires. We studied the impact of low-temperature annealing on the morphology and conductance of DNA-templated nanowires. Nanowires were formed by selecti...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 36(2020), 24 vom: 23. Juni, Seite 6661-6667
1. Verfasser: Westover, Tyler R (VerfasserIn)
Weitere Verfasser: Aryal, Basu R, Ranasinghe, Dulashani R, Uprety, Bibek, Harb, John N, Woolley, Adam T, Davis, Robert C
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Polymers Gold 7440-57-5 DNA 9007-49-2
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520 |a DNA origami-templated fabrication enables bottom-up fabrication of nanoscale structures from a variety of functional materials, including metal nanowires. We studied the impact of low-temperature annealing on the morphology and conductance of DNA-templated nanowires. Nanowires were formed by selective seeding of gold nanorods on DNA origami and gold electroless plating of the seeded structures. At low annealing temperatures (160 °C for seeded-only and 180 °C for plated), the wires broke up and separated into multiple, isolated islands. Through the use of polymer-constrained annealing, the island formation in plated wires was suppressed up to annealing temperatures of 210 °C. Four-point electrical measurements showed that the wires remained conductive after a polymer-constrained annealing at 200 °C 
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700 1 |a Ranasinghe, Dulashani R  |e verfasserin  |4 aut 
700 1 |a Uprety, Bibek  |e verfasserin  |4 aut 
700 1 |a Harb, John N  |e verfasserin  |4 aut 
700 1 |a Woolley, Adam T  |e verfasserin  |4 aut 
700 1 |a Davis, Robert C  |e verfasserin  |4 aut 
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