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Upconversion Luminescence Sensitized pH-Nanoprobes

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Upconversion Nanoparticles (UCNPs) for Functional Applications

Part of the book series: Progress in Optical Science and Photonics ((POSP,volume 24))

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Abstract

With the advancement in the field of nanotechnology, the functionalized UCNPs have shown promising results in the field of optical pH sensing at the intercellular as well as at the extracellular level. The accurate detection and monitoring of pH are very important for the proper functioning of various processes at the intercellular and extracellular level. This chapter begins with introduction part covering a brief overview of UCMs and their role in sensing followed by the importance of pH in various natural processes and the conventional pH detection methods used by the researchers. The definition and some of the basic concepts have been explained in the next section followed by a brief discussion of the various types of optical pH sensing schemes utilized in the current times. The luminescence-based pH detection schemes classified on the basis of measurand used as a pH-responsive parameter have been described. The forthcoming sections describe various types of functionalized UCNPs, upconversion-based pH sensing, future prospects and conclusions related to the UC-based optical pH sensing.

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  1. Laser and Spectroscopy Laboratory, Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, Jharkhand, India

    Vishab Kesarwani & Vineet Kumar Rai

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  1. Vishab Kesarwani
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  2. Vineet Kumar Rai
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Correspondence to Vineet Kumar Rai .

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  1. Department of Physics, National Inst of Technology, Srinagar, Srinagar, Jammu and Kashmir, India

    Vijay Kumar

  2. Department of Physics, National Institute of Technology Srinaga, Jammu & Kashmir, India

    Irfan Ayoub

  3. Department of Physics, University of the Free State, Bloemfontein, South Africa

    Hendrik C. Swart

  4. Department of Mechanical Engineering, National Institute of Technology Srinaga, Srinagar, India

    Rakesh Sehgal

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Kesarwani, V., Rai, V.K. (2023). Upconversion Luminescence Sensitized pH-Nanoprobes. In: Kumar, V., Ayoub, I., Swart, H.C., Sehgal, R. (eds) Upconversion Nanoparticles (UCNPs) for Functional Applications. Progress in Optical Science and Photonics, vol 24. Springer, Singapore. https://doi.org/10.1007/978-981-99-3913-8_10

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