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A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex
Qin, Yumei1; Li, Shuangde2; Lu, Jun1; Li, Zhen1; Duan, Xue1
2016
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:51页码:45708-45715
摘要A reversible pH-modified blue to green luminescent transition systemwas constructed by encapsulating bis(2-(2-hydroxyphenyl)benzothiazolate) zinc (Zn(BTZ)(2)) within poly(styrene-b-acrylic acid) (PS-b-PAA) micelles. The system can respond to changes in the external pH environment from alkaline (7.0-10.5) to weakly acidic (4.5-7.0) conditions, which are absent for the pristine Zn(BTZ)(2) dimethylformamide solution state, and designated as blue and green micelles, respectively. The tunable pH-modified luminescent behavior probably originates from changes in the Zn(BTZ)(2) molecular packing modes modified by the shrink/swell morphology transition of the copolymer micelles due to the reversible ionization of the carboxylic group. The emission transition from blue to green can be further detected through affecting the Zn(BTZ)(2) intermolecular interactions upon grinding the Zn(BTZ)(2) powder. The micelles were further fabricated to form films by electrostatic layer-by-layer assembly with positively charged layered double hydroxide (LDH) nanosheets, which are responsive to acidic and alkaline atmospheres and show higher UV resistance compared to the micelles/PDDA (poly(dimethyldiallylammonium) chloride) film.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra07049c
收录类别SCI
语种英语
关键词[WOS]LAYERED DOUBLE HYDROXIDE ; ELECTROLUMINESCENT PROPERTIES ; ULTRATHIN FILMS ; POLYMERIC MICELLES ; OPTICAL-PROPERTIES ; BUILDING-BLOCKS ; LUMINESCENCE ; NANOPARTICLES ; TEMPERATURE ; EMISSION
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Foundation of China ; 111 Project(B07004) ; New Century Excellent Talents in University(NCET-11-0560) ; Fundamental Research Funds for the Central Universities
WOS记录号WOS:000376120100091
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21081
专题多相复杂系统国家重点实验室
作者单位1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, P Box 98,Beisanhuan East Rd 15, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
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GB/T 7714
Qin, Yumei,Li, Shuangde,Lu, Jun,et al. A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex[J]. RSC ADVANCES,2016,6(51):45708-45715.
APA Qin, Yumei,Li, Shuangde,Lu, Jun,Li, Zhen,&Duan, Xue.(2016).A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex.RSC ADVANCES,6(51),45708-45715.
MLA Qin, Yumei,et al."A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex".RSC ADVANCES 6.51(2016):45708-45715.
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