首页|Preparation and application of multi-wavelength-regulated multi-state photoswitchable fluorescent polymer nanoparticles
Preparation and application of multi-wavelength-regulated multi-state photoswitchable fluorescent polymer nanoparticles
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NSTL
The photoswitchable system with color and multi-state fluorescence changes is the key to the realization of advanced multi-level information storage, and its application potential has far exceeded the monochromatic fluorescent system. Herein, we introduced a novel multi-state photoswitchable fluorescent polymeric nanoparticles, which contains two energy-matched photoswitchable fluorescent molecules, i.e. diarylethene derivative (BH, donor) and spiropyran derivative (SPMA, acceptor), to construct a tunable fluorescence resonance energy transfer (FRET) system. By optimizing the feeding ratio of the two photochromic molecules to control die efficiency of energy transfer, the fluorescence of the nanoparticles can be reversibly switched among none, red, orange, and green by adjusting the wavelength of light stimuli. In addition, the nanoparticles display good water dispersibility, high brightness, fast responsiveness, excellent photoreversibility, and long-term fluorescence stability. We also verified that the system has great potential in optical data storage, multi-layer information encryption, and anti-counterfeiting.
Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Hunan University of Science and Technology, Xiangttm 411201, China
College of Chemistry and Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, And Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Xiangtnn University, Xumgtnn 411105, China
NSTL
