Selective and Fast Responsive Sensitized Micelle for Detection of Fluoride Level in Drinking Water
2019
Halder, Animesh | Singh, Soumendra | Adhikari, Aniruddha | Singh, Priya | Sarkar, Probir Kumar | Pal, Uttam | Ghosh, Ria | Shikha, Deep | Solanki, Yogendra Singh | Agarwal, Madhu | Gupta, A. B. | Chakraborty, Rajib | Saha-Dasgupta, Tanusri | Das, Ranjan | Pal, Samir Kumar
Consumption of excess fluorides through drinking water and its adverse effects on human health is of global concern. Given that people from at least 25 countries are suffering from fluorosis, global management of this issue is of immense importance. Here, we developed a sensor called FeFlu, based on an anionic micelle (SDS)–hematoporphyrin (Hp) complex, sensitized by Fe(III) chloride for the detection of fluoride in water. The micelle–hematoporphyrin (SDS–Hp) complex is almost nonfluorescent, but the prototype (FeFlu device) based on it displays a strong turn-on fluorescence upon recognition of F– in water. In addition, the detection of fluorides using FeFlu is found to suffer insignificant interference from environmentally relevant anions and cations. In the present study, we also fabricated a fluorescence-based prototype FeFlu device based on photophysical investigation of several sensitized micelle–Hp complexes and validated the results with a fluoride-ion-selective electrode, which is widely utilized for the detection of fluorides in drinking water in an easy and affordable manner.
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