Authors
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Ye, J. ; Weichelt, R. ; Kemper, U. ; Gupta, V. ; König, T. ; Eychmüller, A. ; Seidel, R.
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Title
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Casting of gold nanoparticles with high aspect ratios inside DNA molds
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Date
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17.09.2020
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Number
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58674
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Abstract
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DNA nanostructures provide a powerful platform for the programmable assembly of nanomaterials. Here this approach is extended to synthesize rod–like gold nanoparticles in a full DNA controlled manner. The approach is based on DNA molds containing elongated cavities. Gold is deposited inside the molds using a seeded–growth procedure. By carefully exploring the growth parameters it is shown that gold nanostructures with aspect ratios of up to 7 can be grown from single seeds. The highly anisotropic growth is in this case controlled only by the rather soft and porous DNA walls. The optimized seeded growth procedure provides a robust and simple routine to achieve continuous gold nanostructures using DNA templating.
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Publisher
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Small
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Wikidata
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Citation
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Small 16 (2020) 2003662
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DOI
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https://doi.org/10.1002/SMLL.202003662
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Tags
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