☆麦兜☆ » ASAP_Paper_Show_捷报频传 » 【J. Mater. Chem】Silver nanocluster-based fluorescent sensors for sensitive detection of Cu(II)

sally208 发表于 2008-9-8 10:34

【J. Mater. Chem】Silver nanocluster-based fluorescent sensors for sensitive detection of Cu(II)

[b]Authors[/b]: Li Shang and Shaojun Dong

[b]Web Release Date[/b]:1st September 2008

[b]DOI[/b]: [u][color=#0000ff]10.1016/j.bios.2008.08.006[/color][/u]

[size=1][b]Abstract[/b][/size]: In this work, we report the first application of water-soluble fluorescent Ag nanoclusters in fluorescent sensors. The fluorescence of poly(methacrylic acid) (PMAA)-templated Ag nanoclusters was found to be quenched effectively by Cu2+, but not when other common metal ions were present. By virtue of the specific response toward the analyte, a new, simple, and sensitive fluorescent method for detecting Cu2+ has been developed based on Ag nanoclusters. The present assay allows for the sensing of Cu2+ in the range of 1.0 × 10-8 M to 6.0 × 10-6 M with a detection limit as low as 8 nM at a signal-to-noise ratio of 3. The quenching mechanism was discussed based on the absorption and fluorescence spectroscopy studies, which suggested that Cu2+ quenched the emission by binding with the free carboxylic groups of PMAA polymers that surround the emissive Ag nanoclusters. In addition, the response of Ag nanoclusters toward Cu2+ was found to be reversible, which further made the present system attractive for sensor applications. The present study shows a promising step toward the application of fluorescent metal nanoclusters, which may also serve as a foundation for the further design and understanding of these novel materials. [align=center][img]http://www.rsc.org/ejga/JM/2008/b810409c-ga.gif[/img][/align]
[b]Link[/b]:[url]http://www.rsc.org/Publishing/Journals/JM/article.asp?doi=b810409c[/url]

[b]Remarks[/b]: 如前所提，和（[url=http://www.chem8.org/bbs/thread-12133-1-1.html]http://www.chem8.org/bbs/thread-12133-1-1.html[/url]）及（[url=http://www.chem8.org/bbs/thread-18501-1-1.html]http://www.chem8.org/bbs/thread-18501-1-1.html[/url]）是一系列的。相对而言，这篇工作的发表也算顺利，先投的Chem. Commun.，被拒；转投到JMC后，不到一月给出审稿意见，两个审稿人均建议不用修改，直接发表。呵呵，投了这么多次文章，这算是我第一次遇到不用修改直接发表，感觉还是很爽的。

sally208 发表于 2008-9-8 10:43

呵呵，再散250个金币，等候MC通过红包发放申请，大家就可以去领了！：）

litianbao 发表于 2008-9-8 11:17

好文章，谢谢分享.

longmarch10000 发表于 2008-9-8 11:18

祝贺，捷报频传阿

weihui_cn 发表于 2008-9-8 11:26

:victory: :victory: :victory: :victory:

liutao_jlu 发表于 2008-9-8 11:47

恭喜

xjuanyu 发表于 2008-9-8 11:56

恭喜

welai 发表于 2008-9-8 12:29

恭喜恭喜，红吧拿来～;P

choscar 发表于 2008-9-8 12:41

gxgx:)

sulfur 发表于 2008-9-8 12:56

恭喜

myheric 发表于 2008-9-8 13:29

恭喜恭喜！

Metalcarbene 发表于 2008-9-8 14:17

恭喜楼主:lol

springtosea 发表于 2008-9-8 14:26

gongxigongxi

Sunlit 发表于 2008-9-8 14:38

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yangxl1212 发表于 2008-9-8 15:46

呵呵，热烈祝贺！

谢谢与大家分享快乐，恭喜你

popeye.cn 发表于 2008-9-8 15:56

眼红一下。
绝对不是昨晚没休息好。
;P

wzyan 发表于 2008-9-8 16:10

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jssxh 发表于 2008-9-8 18:01

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xzhdty 发表于 2008-9-8 18:36

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xjlj20041997 发表于 2008-9-8 18:44

厉害:victory:

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