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题名: Influence of Magnetic Fe3O4 Nanoparticles on Fluorescence Quenching of Dye Molecules
作者: Zhang, QQ(张庆庆); Su, RG(苏瑞巩); Wang, JP; Zhang, Q
通讯作者: Zhang, QQ(张庆庆)
刊名: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
发表日期: 2016
DOI: 10.1166/jnn.2016.10216
卷: 16, 期:7
收录类别: SCI ; EI
文章类型: 期刊论文
部门归属: 纳米生物医学与安全研究部
英文摘要: Magneto-fluorescent nanocomposites possessing both fluorescent and magnetic properties represent an attractive platform for biomedicine and nanotechnology. One of the great challenges facing magneto-fluorescent nanocomposites is understanding the influence of magnetic component on the fluorescence quenching of dye molecules. However, there was still lack of in-depth and quantitative analysis of fluorescence decay for magneto-fluorescent nanocomposites. Herein, fluorescence intensity decay of acridine orange, a model fluorescent dye, was quantitatively determined with magnetic Fe3O4 nanoparticles in various concentrations ranging from 0 to 6250 ng . ml(-1). It was found that when the concentration of Fe3O4 NPs was lower than 0.0625 ng . ml(-1), the fluorescence intensity decreased sharply with increasing concentration of Fe3O4 NPs; when the NP concentrations ranged from 0.0625 ng . ml(-1) to 1.25 ng . ml(-1), the fluorescence intensity of acridine orange decreased linearly with increase of NP concentration; and when the concentration of Fe3O4 NPs exceeded 1.25 ng . ml(-1), essentially no fluorescence can be detected. These findings suggested that magneto-fluorescent composites with optimized fluorescence properties could be obtained by carefully controlling Fe3O4 nanoparticle component, and offered a better understanding of interaction between magnetic NPs and luminescence of fluorescent molecules.
关键词[WOS]: RESONANCE ENERGY-TRANSFER ; INORGANIC NANOPARTICLES ; NANOCOMPOSITES ; THERAPY ; CELLS ; OXIDE
语种: 英语
JCR小类分区: 三区
WOS记录号: WOS:000387100400116
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4557
Appears in Collections:纳米生物医学与安全研究部_离职团队_期刊论文

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Recommended Citation:
Zhang, QQ,Su, RG,Wang, JP,et al. Influence of Magnetic Fe3O4 Nanoparticles on Fluorescence Quenching of Dye Molecules[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2016,16(7).
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