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学科主题: 物理化学
题名: Fabrication of QD-silica-Au NCs ternary hybrid sphere-based fluorescence bar codes by a post-encoding method
作者: Wang, Yan-Qin1, 2;  He, Xi-Wen1, 2;  Li, Wen-You1, 2;  Zhang, Yu-Kui1, 2, 3
通讯作者: 李文友
刊名: JOURNAL OF MATERIALS CHEMISTRY C
发表日期: 2013
DOI: 10.1039/c3tc00681f
卷: 1, 期:11, 页:2202-2208
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: 18
项目归属: 1810
产权排名: 待补充
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Materials Science, Multidisciplinary ;  Physics, Applied
资助者: 2,4
研究领域[WOS]: Materials Science ;  Physics
英文摘要: We fabricated QD-silica-Au NC hybrid spheres, in which the solid silica core contained QDs while the mesostructured silica shell contained Au NCs, by a two-step synthesis procedure. The hybrid spheres were further characterized by high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) and nitrogen adsorption-desorption analysis to confirm the formation of the ternary hybrid structure. The as-prepared ternary hybrid spheres showed an interesting fluorescence spectrum variation and further could be developed as a precursor for fabricating multicolor fluorescence bar codes by using L-cysteine (L-Cys) as an effective post-encoding adjuster. A small variation of the concentration of L-Cys led to a prominent change of the precursor's fluorescence intensity ratio, which could correspond to a series of distinguishable multicolor fluorescent bar codes. Furthermore, the multicolour fluorescence bar codes fabricated by the post-encoding method showed excellent non-reversibility, batch-to-batch reproducibility of the intensity ratios, photophysical and thermal stability properties and anti-interference capabilities, which are important virtues for them to be used in high-throughput bio-labelling and imaging.
关键词[WOS]: RESONANCE ENERGY-TRANSFER ;  NANOPARTICLES ;  NANOCLUSTERS ;  NANOCRYSTALS ;  LUMINESCENT ;  PROBES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000315169100016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119421
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Nankai Univ, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China
2.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatograph Res & Anal Ctr, Dalian 116011, Peoples R China

Recommended Citation:
Wang, Yan-Qin,He, Xi-Wen,Li, Wen-You,et al. Fabrication of QD-silica-Au NCs ternary hybrid sphere-based fluorescence bar codes by a post-encoding method[J]. JOURNAL OF MATERIALS CHEMISTRY C,2013,1(11):2202-2208.
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