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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202207038
|2 doi
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|a pubmed24n1163.xml
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|a (DE-627)NLM349117705
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|a (NLM)36398498
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Bi, Shenghui
|e verfasserin
|4 aut
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| 245 |
1 |
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|a NIR-II Responsive Upconversion Nanoprobe with Simultaneously Enhanced Single-Band Red Luminescence and Phase/Size Control for Bioimaging and Photodynamic Therapy
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 24.02.2023
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|a Date Revised 24.02.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Lanthanide based upconversion (UC) nanoprobes have emerged as promising agents for biological applications. Extending the excitation light to the second near-infrared (NIR-II), instead of the traditional 980/808 nm light, and realizing NIR-II responsive single-band red UC emission is highly demanded for bioimaging application, which has not yet been explored. Here, a new type of NIR-II (1532 nm) light responsive UC nanoparticles (UCNPs) with enhanced single-band red UC emission and controllable phase and size is designed by introducing Er3+ as sensitizer and utilizing Mn2+ as energy manipulator. Through tuning the content of Mn2+ in NaLnF4 :Er/Mn, the crystal phase, size, and emitting color are readily controlled, and the red-to-green (R/G) ratio is significantly increased from ≈20 to ≈300, leading to NIR-II responsive single band red emission via efficient energy transfer between Er3+ and Mn2+ . In addition, the single band red emitting intensity can be further improved by coating shell to avoid the surface quenching effect. More importantly, NIR-II light activated red UC bioimaging and photodynamic therapy through loading photosensitizer of zinc phthalocyanine are successfully achieved for the first time. These findings provide a new strategy of designing NIR-II light responsive single-band red emissive UCNPs for biomedical applications
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4 |
|a Journal Article
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|a Er3+ sensitization
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| 650 |
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4 |
|a NIR-II responsive photon upconversion
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| 650 |
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4 |
|a NIR-II responsive photodynamic therapy
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| 650 |
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4 |
|a energy transfer
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| 650 |
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4 |
|a single band red emission
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| 650 |
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7 |
|a Lanthanoid Series Elements
|2 NLM
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| 700 |
1 |
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|a Deng, Zhiming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Junqing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wen, Xingwang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zeng, Songjun
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 7 vom: 07. Feb., Seite e2207038
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
8 |
|g volume:35
|g year:2023
|g number:7
|g day:07
|g month:02
|g pages:e2207038
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202207038
|3 Volltext
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|d 35
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|e 7
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