Casting of Gold Nanoparticles with High Aspect Ratios inside DNA Molds

被引：19

作者：

Ye, Jingjing ^{[1
,2
]}

Weichelt, Richard ^{[1
,2
,3
,4
]}

Kemper, Ulrich ^{[1
,2
]}

Gupta, Vaibhav ^{[5
]}

Koenig, Tobias A. F. ^{[5
]}

Eychmueller, Alexander ^{[3
,4
]}

Seidel, Ralf ^{[1
,2
]}

机构：

[1] Univ Leipzig, Mol Biophys Grp, Peter Debye Inst Soft Matter Phys, D-04103 Leipzig, Germany

[2] Tech Univ Dresden, Ctr Adv Elect Dresden, D-01062 Dresden, Germany

[3] Tech Univ Dresden, Phys Chem, D-01062 Dresden, Germany

[4] Tech Univ Dresden, Ctr Adv Elect Dresden, D-01062 Dresden, Germany

[5] Leibniz Inst Polymerforsch Dresden eV, Inst Phys Chem & Polymer Phys, Hohe Str 6, D-01069 Dresden, Germany

来源：

SMALL | 2020年 / 16卷 / 39期

关键词：

bottom-up; DNA origami; gold nanoparticles; metallization; nanoelectronics; ORIGAMI; NANOTECHNOLOGY;

D O I：

10.1002/smll.202003662

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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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页数：6

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