Bioimaging with Two-Photon-Induced Luminescence from Triangular Nanoplates and Nanoparticle Aggregates of Gold

Authors

  • Yuqiang Jiang,

    1. Institute for Molecular Science Myodaiji, Okazaki 444-8585 (Japan)
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  • Noriko Nishizawa Horimoto,

    1. Institute for Molecular Science Myodaiji, Okazaki 444-8585 (Japan)
    2. Present address: Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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  • Kohei Imura,

    1. Institute for Molecular Science Myodaiji, Okazaki 444-8585 (Japan)
    2. The Graduate University for Advanced Studies Myodaiji, Okazaki 444-8585 (Japan)
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  • Hiromi Okamoto,

    Corresponding author
    1. Institute for Molecular Science Myodaiji, Okazaki 444-8585 (Japan)
    2. The Graduate University for Advanced Studies Myodaiji, Okazaki 444-8585 (Japan)
    • Institute for Molecular Science Myodaiji, Okazaki 444-8585 (Japan).
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  • Ko Matsui,

    1. The Graduate University for Advanced Studies Myodaiji, Okazaki 444-8585 (Japan)
    2. National Institute for Physiological Sciences Myodaiji, Okazaki 444-8787 (Japan)
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  • Ryuichi Shigemoto

    1. The Graduate University for Advanced Studies Myodaiji, Okazaki 444-8585 (Japan)
    2. National Institute for Physiological Sciences Myodaiji, Okazaki 444-8787 (Japan)
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Abstract

original image

Cell imaging with two-photon-induced photoluminescence is demonstrated using gold nanoparticles (either triangular nanoplates or nanosphere aggregates) as imaging agents. On being conjugated to yeast cells, gold nanoplates exhibit visible two-photon excited luminescence that can be detected by two-photon laser scanning microscopy. The cells can be either dried (in the air) or alive (in water).

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