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- W3082966602 endingPage "126794" @default.
- W3082966602 startingPage "126794" @default.
- W3082966602 abstract "Dynamic optical materials can respond to external stimuli to give intriguing and chameleon-like visual effect and carry more information, they hence have attracted considerable attention. In this work, we propose a simple and efficient strategy to construct multi-color solid-state carbon dots (CDs) materials with photo-switchable and reversible dynamic-optical properties. A photochromic and positively-charged cellulose derivative C-Im+-SP with an imidazole salt (Im+) group and a spiropyran (SP) group is designed and synthesized. Subsequently, C-Im+-SP is spontaneously coated on the surface of negatively-charged CDs (NCDs) via electrostatic attraction to form a physical protective shell, which not only inhibits aggregation-caused quenching (ACQ) in NCDs but also promotes effective fluorescence resonance energy transfer (FRET). The resultant [email protected]+-SP exhibits a photo-triggering reversible dynamic-optical property. The NCDs to C-Im+-SP ratio can be used to effectively regulate fluorescence emission and fluorescence kinetics. The polymeric C-Im+-SP shell layer endows NCDs with excellent processability and formability, whereby [email protected]+-SP materials can be utilized as functional coatings and inks to fabricate photo-rewritable paper and dynamic anti-counterfeit patterns that have considerable potential applications for special coatings, complex anti-counterfeiting, and information encryption." @default.
- W3082966602 created "2020-09-08" @default.
- W3082966602 creator A5006651636 @default.
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- W3082966602 date "2021-02-01" @default.
- W3082966602 modified "2023-10-18" @default.
- W3082966602 title "Facile access to photo-switchable, dynamic-optical, multi-colored and solid-state materials from carbon dots and cellulose for photo-rewritable paper and advanced anti-counterfeiting" @default.
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- W3082966602 doi "https://doi.org/10.1016/j.cej.2020.126794" @default.
- W3082966602 hasPublicationYear "2021" @default.
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