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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la500270t
|2 doi
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|a pubmed24n0789.xml
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|a eng
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| 100 |
1 |
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|a Hu, Ying
|e verfasserin
|4 aut
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| 245 |
1 |
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|a "Fastening" porphyrin in highly cross-linked polyphosphazene hybrid nanoparticles
|b powerful red fluorescent probe for detecting mercury ion
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 15.04.2015
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|a Date Revised 23.04.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a It is a significant issue to overcome the concentration-quenching effect of the small fluorescent probes and maintain the high fluorescent efficiency at high concentration for sensitive and selective fluorescent mark or detection. We developed a new strategy to "isolate" and "fasten" porphyrin moieties in a highly cross-linked poly(tetraphenylporphyrin-co-cyclotriphosphazene) (TPP-PZS) by the polycondensation of hexachlorocyclotriphosphazene (HCCP) and 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin (TPP-(OH)4) in a suitable solvent. The resulting TPP-PZS particles were characterized with transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FTIR), (31)P nuclear magnetic resonance (NMR), and ultraviolet and visible (UV-vis) absorption spectra. Remarkably, TPP-PZS particles obtained in acetone emitted a bright red fluorescence both in powder state and in solution because the aggregation of porphyrin moieties in "H-type" (face-to-face) and "J-type" (edge-to-edge) was effectively blocked. The fluorescent TPP-PZS particles also showed superior resistance to photobleaching, and had a high sensitivity and selectivity for the detection of Hg(2+) ions. The TPP-PZS particles were therefore used as an ideal material for preparing test strips to quickly detect/monitor the Hg(2+) ions in a facile way
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Fluorescent Dyes
|2 NLM
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|a Organophosphorus Compounds
|2 NLM
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|a Polymers
|2 NLM
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|a poly(phosphazene)
|2 NLM
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|a Mercury
|2 NLM
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|a FXS1BY2PGL
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|a Meng, Lingjie
|e verfasserin
|4 aut
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|a Lu, Qinghua
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 15 vom: 22. Apr., Seite 4458-64
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|x 1520-5827
|7 nnns
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|g volume:30
|g year:2014
|g number:15
|g day:22
|g month:04
|g pages:4458-64
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|u http://dx.doi.org/10.1021/la500270t
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