DNA Origami Guided Self-Assembly of Plasmonic Polymers with Robust Long-Range Plasmonic Resonance

Pengfei Wang, Ji Hyeok Huh, Haedong Park, Donglei Yang, Yingwei Zhang, Yunlong Zhang, Jaewon Lee, Seungwoo Lee, Yonggang Ke

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Plasmonic polymers consisting of metallic nanoparticles (NPs) are able to squeeze light into the deep-subwavelength space and transfer along a highly confined nanoscale path in long range. DNA nanotechnology, particularly benefiting from the molecular programmability of DNA origami, has provided otherwise nearly impossible platforms for constructing plasmonic nanoparticle polymers with designer configurations and nanoscale gaps. Here, we design and assemble a DNA origami hashtag tile that is able to polymerize into one-dimensional chains with high rigidity. The DNA origami hashtag chains are used as frames to enable robust, versatile, and precise arrangement of metallic NPs into micrometer-long chiral and magnetic plasmonic polymers, which are capable of efficiently transporting plasmonic angular momentum and magnetic surface plasmonic polaritons at the deep-subwavelength scale. Our work provides a molecular platform for the fabrication of long, straight, and structurally complex nanoparticle polymers with emerging plasmonic properties that are appealing to a variety of fields.

Original languageEnglish
Pages (from-to)8926-8932
Number of pages7
JournalNano Letters
Volume20
Issue number12
DOIs
Publication statusPublished - 2020 Dec 9

Keywords

  • DNA origami
  • Magnetic plasmons
  • Metallic nanoparticles
  • Optical Chirality
  • Plasmonic polymers

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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