ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR
Fluorescent dye 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS) is used to develop a ratiometric pH indicator based on NaYF4:Yb3+/Tm3+ upconversion nanoparticles (UCNPs). HPTS was functionalized onto the UCNP surfaces via a modified co-condensation silica coating (UCNP@SiO2-HPTS). The as-prepared UCNP...
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Trường Đại học Đà Lạt
2023
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| Truy cập trực tuyến: | https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1044 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/114494 |
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oai:scholar.dlu.edu.vn:DLU123456789-1144942023-10-27T14:47:41Z ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR Nguyen, Nhat Nam Fluorescent dye 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS) is used to develop a ratiometric pH indicator based on NaYF4:Yb3+/Tm3+ upconversion nanoparticles (UCNPs). HPTS was functionalized onto the UCNP surfaces via a modified co-condensation silica coating (UCNP@SiO2-HPTS). The as-prepared UCNP@SiO2-HPTS core-shell nanostructure was characterized with transmission electron microscopy, scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy (FT-IR), and photoluminescence spectroscopy. Luminescence resonance energy transfer (LRET) from NaYF4:Yb3+/Tm3+ UCNP to HPTS was found to exhibit pH-sensitivity simultaneously under near-infrared (NIR) irradiation (λ = 980 nm). 2023-03-04T14:14:22Z 2023-03-04T14:14:22Z 2023 Article 0866-787X https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1044 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/114494 10.37569/DalatUniversity.13.1.1044(2023) en Tạp chí Khoa học Đại học Đà Lạt, Tập 13, Số 1; tr. 71-82 application/pdf Trường Đại học Đà Lạt |
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Thư viện Trường Đại học Đà Lạt |
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English |
| description |
Fluorescent dye 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS) is used to develop a ratiometric pH indicator based on NaYF4:Yb3+/Tm3+ upconversion nanoparticles (UCNPs). HPTS was functionalized onto the UCNP surfaces via a modified co-condensation silica coating (UCNP@SiO2-HPTS). The as-prepared UCNP@SiO2-HPTS core-shell nanostructure was characterized with transmission electron microscopy, scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy (FT-IR), and photoluminescence spectroscopy. Luminescence resonance energy transfer (LRET) from NaYF4:Yb3+/Tm3+ UCNP to HPTS was found to exhibit pH-sensitivity simultaneously under near-infrared (NIR) irradiation (λ = 980 nm). |
| format |
Article |
| author |
Nguyen, Nhat Nam |
| spellingShingle |
Nguyen, Nhat Nam ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR |
| author_facet |
Nguyen, Nhat Nam |
| author_sort |
Nguyen, Nhat Nam |
| title |
ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR |
| title_short |
ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR |
| title_full |
ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR |
| title_fullStr |
ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR |
| title_full_unstemmed |
ENGINEERING THE NaYF4:Yb3+/Tm3+ UPCONVERSION NANOPARTICLE LUMINESCENCE ENERGY TRANSFER FOR A RATIOMETRIC pH INDICATOR |
| title_sort |
engineering the nayf4:yb3+/tm3+ upconversion nanoparticle luminescence energy transfer for a ratiometric ph indicator |
| publisher |
Trường Đại học Đà Lạt |
| publishDate |
2023 |
| url |
https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1044 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/114494 |
| _version_ |
1819769031256702976 |