双光子敏化Eu3高效发光活细胞成像纳米生物探针
O648; Luminescent nanospheres (EuPHS, dav=45 nm) containing 40%(w) of Eu(tta)3dpbt (tta=thenoyltrifluoroacetonato;dpbt=2-(N,N-diethylanilin-4-yl)-4,6-bis(3,5-dimethylpyrazol-1-yl)-1,3,5-triazine) were prepared by encapsulating Eu(tta)3dpbt in a hybrid matrix formed in situ from poly(styrene-co-methy...
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| Veröffentlicht in: | 物理化学学报 2012 (10), p.2480-2486 |
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| container_title | 物理化学学报 |
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| creator | 符小艺 邵光胜 韩荣成 马严 薛富民 杨帆 付立民 张建平 王远 |
| description | O648; Luminescent nanospheres (EuPHS, dav=45 nm) containing 40%(w) of Eu(tta)3dpbt (tta=thenoyltrifluoroacetonato;dpbt=2-(N,N-diethylanilin-4-yl)-4,6-bis(3,5-dimethylpyrazol-1-yl)-1,3,5-triazine) were prepared by encapsulating Eu(tta)3dpbt in a hybrid matrix formed in situ from poly(styrene-co-methyl methacrylate), octyltrimethoxysilane, and poly(octylsiloxane). The EuPHS are promising luminescent markers for bioanalysis because of their good dispersibility in aqueous solutions, high photostability, low cytotoxicity, and bright Eu3+luminescence under excitation at long wavelengths. EuPHS exhibited excel ent visible light-sensitized and near-infrared two-photon-sensitized Eu3+ luminescence properties, with a visible-light excitation peak at 415 nm and an excitation window extending up to 475 nm. The quantum yield for Eu3+ luminescence was 0.31(λex=415 nm, T=23°C), and the two-photon excitation (TPE) action cross section was 5.0×105 GM (1 GM=10-50 cm4·s·photon-1·particle-1) at 830 nm. Bionanoprobes prepared by |
| doi_str_mv | 10.3866/PKU.WHXB201208161 |
| format | Article |
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The EuPHS are promising luminescent markers for bioanalysis because of their good dispersibility in aqueous solutions, high photostability, low cytotoxicity, and bright Eu3+luminescence under excitation at long wavelengths. EuPHS exhibited excel ent visible light-sensitized and near-infrared two-photon-sensitized Eu3+ luminescence properties, with a visible-light excitation peak at 415 nm and an excitation window extending up to 475 nm. The quantum yield for Eu3+ luminescence was 0.31(λex=415 nm, T=23°C), and the two-photon excitation (TPE) action cross section was 5.0×105 GM (1 GM=10-50 cm4·s·photon-1·particle-1) at 830 nm. Bionanoprobes prepared by</description><identifier>ISSN: 1000-6818</identifier><identifier>DOI: 10.3866/PKU.WHXB201208161</identifier><language>chi</language><publisher>北京分子科学国家实验室,分子动态与稳态国家重点实验室,北京大学化学与分子工程学院,北京100871%华南理工大学材料科学与工程学院,广州510640%中国人民大学化学系,北京100872</publisher><ispartof>物理化学学报, 2012 (10), p.2480-2486</ispartof><rights>Copyright © Wanfang Data Co. Ltd. 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The EuPHS are promising luminescent markers for bioanalysis because of their good dispersibility in aqueous solutions, high photostability, low cytotoxicity, and bright Eu3+luminescence under excitation at long wavelengths. EuPHS exhibited excel ent visible light-sensitized and near-infrared two-photon-sensitized Eu3+ luminescence properties, with a visible-light excitation peak at 415 nm and an excitation window extending up to 475 nm. The quantum yield for Eu3+ luminescence was 0.31(λex=415 nm, T=23°C), and the two-photon excitation (TPE) action cross section was 5.0×105 GM (1 GM=10-50 cm4·s·photon-1·particle-1) at 830 nm. 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| title | 双光子敏化Eu3高效发光活细胞成像纳米生物探针 |
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