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Three-dimensional nanoframes with dual rims as nanoprobes for biosensing

Author

Listed:
  • Hajir Hilal

    (Sungkyunkwan University (SKKU))

  • Qiang Zhao

    (Sungkyunkwan University (SKKU))

  • Jeongwon Kim

    (Sungkyunkwan University (SKKU))

  • Sungwoo Lee

    (Sungkyunkwan University (SKKU))

  • MohammadNavid Haddadnezhad

    (Sungkyunkwan University (SKKU))

  • Sungjae Yoo

    (Sungkyunkwan University (SKKU))

  • Soohyun Lee

    (Sungkyunkwan University (SKKU))

  • Woongkyu Park

    (Korea Photonics Technology Institute (KOPTI))

  • Woocheol Park

    (Sungkyunkwan University (SKKU))

  • Jaewon Lee

    (Sungkyunkwan University (SKKU))

  • Joong Wook Lee

    (Chonnam National University)

  • Insub Jung

    (Sungkyunkwan University (SKKU)
    Sungkyunkwan University (SKKU))

  • Sungho Park

    (Sungkyunkwan University (SKKU))

Abstract

Three-dimensional (3D) nanoframe structures are very appealing because their inner voids and ridges interact efficiently with light and analytes, allowing for effective optical-based sensing. However, the realization of complex nanoframe architecture with high yield is challenging because the systematic design of such a complicated nanostructure lacks an appropriate synthesis protocol. Here, we show the synthesis method for complex 3D nanoframes wherein two-dimensional (2D) dual-rim nanostructures are engraved on each facet of octahedral nanoframes. The synthetic scheme proceeds through multiple executable on-demand steps. With Au octahedral nanoparticles as a sacrificial template, sequential processes of edge-selective Pt deposition and inner Au etching lead to Pt octahedral mono-rim nanoframes. Then, adlayers of Au are grown on Pt skeletons via the Frank-van der Merwe mode, forming sharp and well-developed edges. Next, Pt selective deposition on both the inner and outer boundaries leads to tunable geometric patterning on Au. Finally, after the selective etching of Au, Pt octahedral dual-rim nanoframes with highly homogeneous size and shape are achieved. In order to endow plasmonic features, Au is coated around Pt frames while retaining their geometric shape. The resultant plasmonic dual-rim engraved nanoframes possess strong light entrapping capability verified by single-particle surface-enhanced Raman scattering (SERS) and show the potential of nanoprobes for biosensing through SERS-based immunoassay.

Suggested Citation

  • Hajir Hilal & Qiang Zhao & Jeongwon Kim & Sungwoo Lee & MohammadNavid Haddadnezhad & Sungjae Yoo & Soohyun Lee & Woongkyu Park & Woocheol Park & Jaewon Lee & Joong Wook Lee & Insub Jung & Sungho Park, 2022. "Three-dimensional nanoframes with dual rims as nanoprobes for biosensing," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-32549-w
    DOI: 10.1038/s41467-022-32549-w
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    References listed on IDEAS

    as
    1. Sungjae Yoo & Jeongwon Kim & Sungwoo Choi & Doojae Park & Sungho Park, 2019. "Two-dimensional nanoframes with dual rims," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    2. See Wee Chee & Shu Fen Tan & Zhaslan Baraissov & Michel Bosman & Utkur Mirsaidov, 2017. "Direct observation of the nanoscale Kirkendall effect during galvanic replacement reactions," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
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