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Porous carbon nanowire array for surface-enhanced Raman spectroscopy

Author

Listed:
  • Nan Chen

    (The University of Tokyo
    Beijing Institute of Technology)

  • Ting-Hui Xiao

    (The University of Tokyo
    National Institute for Quantum and Radiological Science and Technology)

  • Zhenyi Luo

    (The University of Tokyo)

  • Yasutaka Kitahama

    (The University of Tokyo)

  • Kotaro Hiramatsu

    (The University of Tokyo
    The University of Tokyo
    Japan Science and Technology Agency
    Kanagawa Institute of Industrial Science and Technology)

  • Naoki Kishimoto

    (Tohoku University)

  • Tamitake Itoh

    (National Institute of Advanced Industrial Science and Technology)

  • Zhenzhou Cheng

    (The University of Tokyo
    Tianjin University)

  • Keisuke Goda

    (The University of Tokyo
    National Institute for Quantum and Radiological Science and Technology
    Wuhan University
    University of California)

Abstract

Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for vibrational spectroscopy as it provides several orders of magnitude higher sensitivity than inherently weak spontaneous Raman scattering by exciting localized surface plasmon resonance (LSPR) on metal substrates. However, SERS can be unreliable for biomedical use since it sacrifices reproducibility, uniformity, biocompatibility, and durability due to its strong dependence on “hot spots”, large photothermal heat generation, and easy oxidization. Here, we demonstrate the design, fabrication, and use of a metal-free (i.e., LSPR-free), topologically tailored nanostructure composed of porous carbon nanowires in an array as a SERS substrate to overcome all these problems. Specifically, it offers not only high signal enhancement (~106) due to its strong broadband charge-transfer resonance, but also extraordinarily high reproducibility due to the absence of hot spots, high durability due to no oxidization, and high compatibility to biomolecules due to its fluorescence quenching capability.

Suggested Citation

  • Nan Chen & Ting-Hui Xiao & Zhenyi Luo & Yasutaka Kitahama & Kotaro Hiramatsu & Naoki Kishimoto & Tamitake Itoh & Zhenzhou Cheng & Keisuke Goda, 2020. "Porous carbon nanowire array for surface-enhanced Raman spectroscopy," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18590-7
    DOI: 10.1038/s41467-020-18590-7
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    Cited by:

    1. Lu Zhang & Wencai Yi & Junfang Li & Guoying Wei & Guangcheng Xi & Lanqun Mao, 2023. "Surfactant-free interfacial growth of graphdiyne hollow microspheres and the mechanistic origin of their SERS activity," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Junseong Ahn & Ji-Hwan Ha & Yongrok Jeong & Young Jung & Jungrak Choi & Jimin Gu & Soon Hyoung Hwang & Mingu Kang & Jiwoo Ko & Seokjoo Cho & Hyeonseok Han & Kyungnam Kang & Jaeho Park & Sohee Jeon & J, 2023. "Nanoscale three-dimensional fabrication based on mechanically guided assembly," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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