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. 2020 Nov 25;15:9431–9445. doi: 10.2147/IJN.S266006

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© 2020 Li et al.

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Fabricating and imaging of amino-functionalized UCNPs probes. (A) Preparation and specific glioma cell binding of CTX-UCNPs probes; (B) In vivo tumor imaging of a representative Balb-c nude mouse after intravenous injection of CTX:UCNPs (top) or unconjugated UCNPs (bottom) for 24 hours.

Note: Copyright ©2010. Elsevier Ltd. Reproduced from Yu XF, Sun Z, Li M, et al. Neurotoxin-conjugated upconversion nanoprobes for direct visualization of tumors under near-infrared irradiation. Biomaterials. 2010;31: 8724–8731.⁶²