期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 600, 期 -, 页码 421-429出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.05.051
关键词
Highly colloidal stable; Multi-responsive; Surface aggregation-induced emission; Yolk-shell; Fluorescence probe
资金
- National Science Foundation of China [U1804128, 51973201]
- 111 project [D18023]
- National Science Foundation for Young Scientists of China [51703206]
- National Key R&D Program of China [2017YFB0307600]
The multifunctional nanoparticles prepared in this study can serve as a multi-stimuli responsive fluorescence probe for real-time visual monitoring of environmental changes, including magnetic field, temperature, pH, and CO2. These nanoparticles exhibit high colloidal stability during environmental changes.
Multi-stimuli responsive fluorescence probe could pave the way for monitoring more complex environmental changes. Here we prepared multifunctional nanoparticle Fe3O4@SiO2@P(DMAEMA-co-TPEE), which displayed yolk-shell morphology with well-defined polymer brush. With superparamagnetic Fe3O4 component and pH/temperature dual sensitive PDMAEMA polymer brush, the as prepared nanoparticles (YS-NPs) exhibited as multi-stimuli responsive fluorescence probe for real-time visual monitoring of environmental changes such as magnetic field, temperature and pH. Such YS-NPs could also be applied as a sensitive detector for CO2 in aqueous solution. Notably, the solution of YS-NPs showed high colloidal stability during the environmental changes, and surface aggregation-induced emission (S-AIE) was proposed for the aggregation of TPE residue on the surface of YS-NPs. (C) 2021 Elsevier Inc. All rights reserved.
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