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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.9b01919
|2 doi
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|a pubmed25n0999.xml
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Tan, Haihu
|e verfasserin
|4 aut
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| 245 |
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|a Upconversion NanoparticlesCarbon Dots@Meso-SiO2 Sandwiched Core-Shell Nanohybrids with Tunable Dual-Mode Luminescence for 3D Anti-Counterfeiting Barcodes
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|c 2019
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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
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|a Date Revised 23.09.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Development of advanced fluorescent materials for constructing a secure and unclonable encryption is urgently required; however, their application in anti-counterfeiting applications is a great challenge. In this work, we proposed and synthesized a new type of upconversion nanoparticlescarbon dots@meso-SiO2 nanohybrids by integrating two fluorescent materials of lanthanide-doped NaYF4 upconversion nanoparticles (UCNPs) and carbon dots (CDs) into mesoporous silica (mSiO2) to produce a novel sandwichlike core-shell structure and a dual-mode fluorescence from UCNPs and CDs. By tailoring the UCNP core of different upconversion luminescence, all three kinds of dual-mode luminescent UCNPs@CDs@mSiO2 nanohybrids exhibited typical RGB upconversion luminescence under a 980 nm laser and blue downconversion luminescence under a 365 nm UV light. Due to strong the hydrophilic nature of the nanohybrids, they can be further fabricated into environmentally benign luminescent inks for creating highly secured, fluorescent-based, three-dimensional anti-counterfeiting barcodes via inkjet printing. The resultant UCNPs@CDs@mSiO2 inks with a dual-mode and tunable luminescence nature endow the inkjet-printing barcodes with an extremely high encoding capacity and high security. Such dual-mode fluorescent inks and barcodes are simple to fabricate, easy to view, efficient for coding, and difficult to clone, thus making them promising nanomaterials for anti-counterfeiting applications
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|a Journal Article
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|a Gong, Guo
|e verfasserin
|4 aut
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|a Xie, Shaowen
|e verfasserin
|4 aut
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|a Song, Ya
|e verfasserin
|4 aut
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|a Zhang, Changfan
|e verfasserin
|4 aut
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| 700 |
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|a Li, Na
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Dong
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Lijian
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Jianxiong
|e verfasserin
|4 aut
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| 700 |
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|a Zheng, Jie
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 35(2019), 35 vom: 03. Sept., Seite 11503-11511
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:35
|g year:2019
|g number:35
|g day:03
|g month:09
|g pages:11503-11511
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|u http://dx.doi.org/10.1021/acs.langmuir.9b01919
|3 Volltext
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