Directed Assembly of Gold Nanorods by Terminal-Base Pairing of Surface-Grafted DNA

Guoqing Wang, Yoshitsugu Akiyama, Naoki Kanayama, Tohru Takarada, Mizuo Maeda

研究成果: ジャーナルへの寄稿記事

10 引用 (Scopus)

抄録

Directed assemblies of anisotropic metal nanoparticles exhibit attractive physical and chemical properties. However, an effective methodology to prepare differently directed assemblies from the same anisotropic nanoparticles is not yet available. Gold nanorods (AuNRs) region-selectively modified with different DNA strands can form side-by-side (SBS) and end-to-end (ETE) assemblies in a non-crosslinking manner. When the complementary DNA is hybridized to the surface-bound DNA, stacking interaction between the blunt ends takes place in the designated regions. Such AuNRs assemble into highly ordered structures, assisted by capillary forces emerging on the substrate surface. Moreover, insertion of a mercury(II)-mediated thymine–thymine base pair into the periphery of the DNA layer allows selective formation of the SBS or ETE assemblies from the strictly identical AuNRs with or without mercury(II).

元の言語英語
記事番号1702137
ジャーナルSmall
13
発行部数44
DOI
出版物ステータス出版済み - 11 27 2017

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Nanotubes
Nanorods
Base Pairing
Gold
DNA
Mercury
Metal Nanoparticles
Nanoparticles
Metal nanoparticles
Complementary DNA
Chemical properties
Physical properties
Substrates

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Engineering (miscellaneous)

これを引用

Directed Assembly of Gold Nanorods by Terminal-Base Pairing of Surface-Grafted DNA. / Wang, Guoqing; Akiyama, Yoshitsugu; Kanayama, Naoki; Takarada, Tohru; Maeda, Mizuo.

:: Small, 巻 13, 番号 44, 1702137, 27.11.2017.

研究成果: ジャーナルへの寄稿記事

Wang, Guoqing ; Akiyama, Yoshitsugu ; Kanayama, Naoki ; Takarada, Tohru ; Maeda, Mizuo. / Directed Assembly of Gold Nanorods by Terminal-Base Pairing of Surface-Grafted DNA. :: Small. 2017 ; 巻 13, 番号 44.
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