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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la404982t
|2 doi
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|a eng
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| 100 |
1 |
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|a Ganguly, Mainak
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Selective dopamine chemosensing using silver-enhanced fluorescence
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|c 2014
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 10.04.2015
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|a Date Revised 15.04.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Condensation product of salicylaldehyde and 1,3 propylenediamine becomes a diiminic Schiff base, which is oxidized by AgNO3 in alkaline solution, and in turn, stable Ag(0) is produced at room temperature. Under this condition, the solution exhibits intense silver nanoparticle enhanced fluorescence (SEF) with the λ(em) at 412 nm. Dopamine is selectively detected down to the nanomolar level via exclusive fluorescence quenching of the SEF. Dopamine-infested solution regains the fluorescence [i.e., SEF in the presence of Hg(II) ions]. Thus dopamine and Hg(II) in succession demonstrate "turn off/on" fluorescence due to the change in the scattering cross section of Ag(0) and gives a quantitative measure of dopamine in real samples. The proposed method is free from interferences of common biocompetitors
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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
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|a Ions
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|a Silver
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|a Mondal, Chanchal
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|a Jana, Jayasmita
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|a Pal, Anjali
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|a Pal, Tarasankar
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 14 vom: 15. Apr., Seite 4120-8
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