Controllable Assembly of Upconversion Nanoparticles Enhanced Tumor Cell Penetration and Killing Efficiency
Abstract: The use of upconversion nanoparticles (UCNPs) for treating deep‐seated cancers and large tumors has recently been gaining momentum. Conventional approaches for loading photosensitizers (PS) to UCNPs using noncovalent physical adsorption and covalent conjugation had been previously described. However, these methods are time‐consuming and require extra modification steps. Incorporating PS loading during the controlled UCNPs assembly process is seldom reported. In this study, an amphiphilic copolymer, poly (styrene‐co‐maleic anhydride), is used to instruct UCNPs assembly formations into well‐controlled UCNPs clusters of various sizes, and the gap zones formed between individual UCNPs can be used to encapsulate PS. This nanostructure production process results in a considerably simpler and reliable method to load PS and other compounds. Also, after considering factors such as PS loading quantity, penetration in 3D bladder tumor organoids, and singlet oxygen production, the small UCNPs clusters displayed superior cell killing efficacy compared to single and big sized clusters. Therefore, these UCNPs clusters with different sizes could facilitate a clear and deep understanding of nanoparticle‐based delivery platform systems for cell killing and may pave a new way for other fields of UCNPs based applications.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Controllable Assembly of Upconversion Nanoparticles Enhanced Tumor Cell Penetration and Killing Efficiency ; volume:7 ; number:24 ; year:2020 ; extent:12
Advanced science ; 7, Heft 24 (2020) (gesamt 12)
- Creator
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Zhang, Zhen
Rahmat, Juwita Norasmara
Mahendran, Ratha
Zhang, Yong
- DOI
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10.1002/advs.202001831
- URN
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urn:nbn:de:101:1-2022062312182673054071
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:35 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Zhang, Zhen
- Rahmat, Juwita Norasmara
- Mahendran, Ratha
- Zhang, Yong
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