Development of Functional Phthalocyanine-Based Associate towards an Effective Fluorimetric Detection of Hg(II)

In acidic media, cationic phthalocyanine Alcian blue 8GX, has an efficient fluorescence quenching effect on anionic phthalocyanine tetrasulphoaluminium phthalocyanines (AlS₄Pc), forming an almost non-fluorescent associate. Based on this discovery, a red-emitting fluorescent probe consisted of AlS₄P...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2018-02, Vol.23 (2), p.418
Main Authors: Du, Guang-Xin, Zhou, Tao, Guo, Meng-Lin, Huang, Ping, Deng, Ya-Bin, Li, Dong-Hui
Format: Article
Language:English
Subjects:
Alcian Blue - chemistry
Biosensing Techniques
Experiments
Fluorescence
Fluorescent Dyes - chemistry
Fluorescent indicators
Fluorimetry
Hydrocarbons
Indoles - chemistry
Laboratories
Materials recovery
Medical research
Mercury
Mercury - isolation & purification
Mercury compounds
Metal ions
Molecular structure
phtalocyanine
probe
Quantitative analysis
Scientific imaging
Sensitivity
Spectrometry, Fluorescence
Sulfur
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Summary:In acidic media, cationic phthalocyanine Alcian blue 8GX, has an efficient fluorescence quenching effect on anionic phthalocyanine tetrasulphoaluminium phthalocyanines (AlS₄Pc), forming an almost non-fluorescent associate. Based on this discovery, a red-emitting fluorescent probe consisted of AlS₄P and Alcian blue 8GX has been developed through molecular assembly. Further studies indicated that the presence of Hg(II) ion has a significant fluorescence recovery effect of the probe. Notably, only Hg(II) can significantly restore the fluorescence of AlS₄Pc-Alcian blue 8GX system which was revealed from the screening experiments of common metal ions, which confirmed that the fluorescence recovery by other metal ions is very weak or even unrestored, showing high specificity and sensitivity AlS₄Pc-Alcian blue 8GX to Hg(II). Thus, a new fluorimetry for Hg(II) with high specificity and high sensitivity in a wide concentration range has been established using AlS₄P -Alcian blue 8GX associate as a red-emitting fluorescent probe. It is more noteworthy that this study opens a new way for development and application of functional phthalocyanine based red-emitting fluorescent probes.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules23020418