A Turn-On Fluorescent Sensor for Sensitive and Selective Detection of Sodium Dodecyl Sulfate Based on the Eosin Y/Polyethyleneimine System

Abstract

A novel sensing system has been designed for the detection of sodium dodecyl sulfate (SDS) based on the recovered fluorescence signal of eosin Y and polyethyleneimine (PEI) complex. The eosin Y reacted with PEI to form a complex by virtue of hydrophobic interaction as well as the electrostatic interaction, which resulted in a strong fluorescence quenching of the eosin Y. Subsequently, with the addition of SDS to the eosin Y/PEI system, a strong surface interaction and electrostatic interactions between PEI and SDS resulted in the formation of the PEI/SDS complex and the dissociation of the eosin Y/PEI complex, which led to the significant fluorescence recovery. Herein, we have demonstrated that this facile methodology can offer a rapid, reliable, and selective detection of SDS with a detection limit as low as 0.02 μg mL(-1) and a linear range from 0.4 to 6 μg mL(-1). Furthermore, the method has been successfully applied to the detection of SDS in real samples with satisfied recovery and accuracy. Overall, these results demonstrate that this method has great promise for environmental applications.

Polyethyleneimine as a novel desorbent for anionic organic dyes on layered double hydroxide surface

“…At high pH values, the desorption efficiency was due to the cooperative contributions of hydrogen bonding between the sulfonate group of methyl orange and amino groups of PEI and anion-exchange between abundant hydroxyl anions and methyl orange on the surface of LDHs. In addition, hydrophobic interaction might play a part role in efficient desorption capacity of PEI toward methyl orange by interaction of hydrophobic vinyl of PEI with the dimethylamino hydrophobic group of methyl orange in the whole pH range [19,52].…”

“…On the other hand, a great number of amino groups could generate very strong interactions between PEI and some organic compounds via hydrogen bonding [18]. Notably, the hydrophobic vinyl of PEI can interact with hydrophobic chains of some compounds through hydrophobic interaction [19]. Therefore, PEI with the three predominant features exhibits strong adsorption capacity for a series of substances [20][21][22][23].…”

Quantitative determination and toxicity evaluation of 2,4-dichlorophenol using poly(eosin Y)/hydroxylated multi-walled carbon nanotubes modified electrode

“…These defects can not only improve the solubility but also significantly enhance the reactivity and electronic property. In the same time, Eosin Y (EY), as a xanthene dye containing bromine atoms, is widely applied as the biological stain, laser dye, fluorescent probe, and sensitizer due to its high stability, versatility, and light absorptivity333435363738. Recently, EY was successfully applied for the fabrication of electrodes to monitor catechol and hydroquinone39, sodium dodecyl sulfate40, and hydroquinone and catechol41.…”

Utilization of Eosin Dye as an Ion Pairing Agent for Determination of Pharmaceuticals: A Brief Review

“…A highly selective and sensitive resonance light scattering detection approach was developed for the synchronous analysis of anthelmintics after reaction with eosin Y to form ionassociation complexes and separated by high-performance liquid chromatography [26]. An environmentally useful method was developed to detect sodium dodecyl sulphate using eosin Y and polyethyleneimine complex [27].…”