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- W2944508716 abstract "A luminescence resonance energy transfer (LRET) system was successfully developed using near-infrared (NIR) Ag2S nanodots (NDs) as the energy acceptors and upconversion nanoparticles (UCNPs) as the energy donors. The system possessing the properties of NIR excitation (980 nm) and NIR emission (795 nm) was used for the ratiometric detection and bioimaging of pH in tumor cells and zebrafish. Glutathione and mercaptopropionic acid (MPA) co-modified Ag2S NDs (GM-Ag2S NDs) were prepared by ligand exchange with an excellent pH-responsive property over a pH range of 4.0 to 9.0. The NIR GM-Ag2S NDs were covalently grafted with silica coated UCNPs, and an efficient LRET platform was developed via modulation of the thickness of the silica coating. Due to the LRET process between UCNPs and GM-Ag2S NDs, a ratiometric luminescence nanoprobe with the properties of NIR excitation-NIR emission was constructed for pH biosensing and bioimaging. On the basis of high contrast bioimaging, the nanoplatform can distinguish between tumor and normal tissue in the zebrafish model." @default.
- W2944508716 created "2019-05-16" @default.
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- W2944508716 date "2019-05-09" @default.
- W2944508716 modified "2023-10-16" @default.
- W2944508716 title "Ratiometric Upconversion Luminescence Nanoprobe with Near-Infrared Ag<sub>2</sub>S Nanodots as the Energy Acceptor for Sensing and Imaging of pH in Vivo" @default.
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- W2944508716 doi "https://doi.org/10.1021/acs.analchem.9b00404" @default.
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