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Ratiometric nanothermometer in vivo based on triplet sensitized upconversion

Author

Listed:
  • Ming Xu

    (Fudan University)

  • Xianmei Zou

    (Fudan University)

  • Qianqian Su

    (Fudan University)

  • Wei Yuan

    (Fudan University)

  • Cong Cao

    (Fudan University)

  • Qiuhong Wang

    (Fudan University)

  • Xingjun Zhu

    (Fudan University)

  • Wei Feng

    (Fudan University)

  • Fuyou Li

    (Fudan University)

Abstract

Temperature is an essential factor that counts for living systems where complicated vital activities are usually temperature dependent. In vivo temperature mapping based on non-contact optical approach will be beneficial for revealing the physiological phenomena behind with minimized influence to the organism. Herein, a highly thermal-sensitive upconversion system based on triplet–triplet annihilation (TTA) mechanism is pioneered to indicate body temperature variation sensitively over the physiological temperature range. The temperature-insensitive NaYF4: Nd nanophosphors with NIR emission was incorporated into the temperature-responsive TTA-upconversion system to serve as an internal calibration unit. Consequently, a ratiometric thermometer capable of accurately monitoring the temperature changes in vivo was developed with high thermal sensitivity (~7.1% K−1) and resolution (~0.1 K).

Suggested Citation

  • Ming Xu & Xianmei Zou & Qianqian Su & Wei Yuan & Cong Cao & Qiuhong Wang & Xingjun Zhu & Wei Feng & Fuyou Li, 2018. "Ratiometric nanothermometer in vivo based on triplet sensitized upconversion," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05160-1
    DOI: 10.1038/s41467-018-05160-1
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    Cited by:

    1. Le Zeng & Ling Huang & Wenhai Lin & Lin-Han Jiang & Gang Han, 2023. "Red light-driven electron sacrificial agents-free photoreduction of inert aryl halides via triplet-triplet annihilation," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Yukai Wu & Fang Li & Yanan Wu & Hao Wang & Liangtao Gu & Jieying Zhang & Yukun Qi & Lingkai Meng & Na Kong & Yingjie Chai & Qian Hu & Zhenyu Xing & Wuwei Ren & Fuyou Li & Xingjun Zhu, 2024. "Lanthanide luminescence nanothermometer with working wavelength beyond 1500 nm for cerebrovascular temperature imaging in vivo," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    3. Pengqing Bi & Tao Zhang & Yuanyuan Guo & Jianqiu Wang & Xian Wei Chua & Zhihao Chen & Wei Peng Goh & Changyun Jiang & Elbert E. M. Chia & Jianhui Hou & Le Yang, 2024. "Donor-acceptor bulk-heterojunction sensitizer for efficient solid-state infrared-to-visible photon up-conversion," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    4. Enhai Song & Meihua Chen & Zitao Chen & Yayun Zhou & Weijie Zhou & Hong-Tao Sun & Xianfeng Yang & Jiulin Gan & Shi Ye & Qinyuan Zhang, 2022. "Mn2+-activated dual-wavelength emitting materials toward wearable optical fibre temperature sensor," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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