Near-infrared luminescence from double-perovskite Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub>:Nd<sup>3+</sup>: A new class of probe for in vivo imaging in the second optical window of biological tissue  [in Japanese]

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Author(s)

    • KAMIMURA Sunao
    • National Institute of Advanced Industrial Science and Technology (AIST)|PRESTO, Japan Science and Technology Agency|Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology
    • XU Chao-Nan
    • National Institute of Advanced Industrial Science and Technology (AIST)|Interdisciplinary Graduate School of Engineering Sciences, Kyushu University|International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
    • YAMADA Hiroshi
    • National Institute of Advanced Industrial Science and Technology (AIST)|Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
    • MARRIOTT Gerard
    • Department of Bioengineering, University of California|Lawrence Berkeley National Laboratory
    • HYODO Koji
    • National Institute of Advanced Industrial Science and Technology (AIST)
    • OHNO Teruhisa
    • Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology|ACT-C, Japan Science and Technology Agency

Abstract

Inorganic phosphors that emit near-infrared (NIR) light are highly valued as fluorescent probes for in vivo imaging of biological tissue. NIR-imaging, however, is limited by the paucity of probes that emit over the NIR-II window (1000–1400 nm). We are interested in exploring the potential of double-layered perovskite structures harboring lanthanide ions as NIR-II fluorescent probes. In this report, we describe the synthesis, and characterization of the photoluminescence, afterglow and thermo-luminescence of Nd<sup>3+</sup>-doped Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub> together with an analysis of its structural properties. Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub>:Nd<sup>3+</sup> has a double-layered perovskite structure with oxygen octahedral tilt and rotation, which leads to an intense NIR-II luminescence from 4<i>f</i>–4<i>f</i> transition in Nd<sup>3+</sup> ions; the intensity of NIR-II photoluminescence of Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub>:Nd<sup>3+</sup> is 10<sup>2</sup> times higher than that of an ordinary perovskite structure, namely SrSnO<sub>3</sub>:Nd<sup>3+</sup>. Moreover, we show the intra-layer planar defect in Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub>:Nd<sup>3+</sup> contributes to the long-lived NIR-II afterglow. Finally, we show time-resolved imaging of the long-lived NIR-II fluorescence of Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub>:Nd<sup>3+</sup> generate high-contrast images of probes embedded within a model tissue.

Journal

  • Journal of the Ceramic Society of Japan

    Journal of the Ceramic Society of Japan 125(7), 591-595, 2017

    The Ceramic Society of Japan

Codes

  • NII Article ID (NAID)
    130006899911
  • Text Lang
    JPN
  • ISSN
    1882-0743
  • Data Source
    J-STAGE 
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