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题名: Bipyridine hydrogel for selective and visible detection and absorption of Cd2+
作者: Miao, Qingqing1;  Wu, Ziye2;  Hai, Zijuan1;  Tao, Changlu3, 4;  Yuan, Qingpan1;  Gong, Yadi1;  Guan, Yafeng5;  Jiang, Jun2;  Liang, Gaolin1
刊名: NANOSCALE
发表日期: 2015
DOI: 10.1039/c4nr06467d
卷: 7, 期:6, 页:2797-2804
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Multidisciplinary ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: Herein, we report for the first time the use of bipyridine-based hydrogel for selective and visible detection and absorption of Cd2+. At low concentrations, hydrogelator 1 was applied for selective detection of Cd2+ in vitro and in living cells with high sensitivity. In the absence of metal ions, 1 is nonfluorescent at 470 nm. Upon addition of metal ions, 1 selectively coordinates to Cd2+, causing an 86-fold increase of fluorescence intensity at 470 nm via the chelation enhanced fluorescence (CHEF) effect, as revealed by first-principles simulations. At 1.5 wt% and pH 5.5, 1 self-assembles into nanofibers to form hydrogel Gel I. Since Cd2+ could actively participate in the hydrogelation and promote the self-assembly, we also successfully applied Gel I for visible detection and absorption of Cd2+. With these excellent properties, Gel I is expected to be explored as one type of versatile biomaterial for not only environmental monitoring but also for pollution treatment in the near future.
关键词[WOS]: ATOMIC FLUORESCENCE SPECTROMETRY ;  ONLINE PRECONCENTRATION ;  SUPRAMOLECULAR HYDROGELS ;  GOLD NANOPARTICLES ;  AQUEOUS-SOLUTION ;  CADMIUM IONS ;  METAL-IONS ;  IN-VITRO ;  SENSOR ;  CELLS
语种: 英语
WOS记录号: WOS:000349472300075
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145989
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.Univ Sci & Technol China, Dept Chem, CAS Key Lab Soft Matter Chem, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China
3.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Ctr Integrat Imaging, Hefei 230026, Anhui, Peoples R China
4.Univ Sci & Technol China, Sch Life Sci, Hefei 230026, Anhui, Peoples R China
5.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China

Recommended Citation:
Miao, Qingqing,Wu, Ziye,Hai, Zijuan,et al. Bipyridine hydrogel for selective and visible detection and absorption of Cd2+[J]. NANOSCALE,2015,7(6):2797-2804.
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