Electrochemical sensor based on polyaniline nanofibers/single wall carbon nanotubes composite for detection of malathion

Ebrahim, Shaker; El-Raey, Radwa; Hefnawy, Ahmed; Ibrahim, Hayam M.; Soliman, Moataz; Abdel‐Fattah, Tarek M.

doi:10.1016/j.synthmet.2014.01.021

Cited by 81 publications

(39 citation statements)

References 29 publications

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“…SWV has also been used for detection of a wide range of OPs over nanocompositemodified GCE. Nanocomposites employed for electrochemical detection of OPs were parathion [24][25][26][27][28], malathion [29,30] and paraoxon [31,32]. The nanocomposites employed for modification of GCE for OPs detection were zeolite [24], ZrO 2 [25], Au/Graphene [26,27], ZrO 2 [28], SWNT/GO [29], MWCNT [30], Au/Pt [31] and ZrO 2 /MWCNT [32].…”

Section: Introductionmentioning

confidence: 99%

“…Nanocomposites employed for electrochemical detection of OPs were parathion [24][25][26][27][28], malathion [29,30] and paraoxon [31,32]. The nanocomposites employed for modification of GCE for OPs detection were zeolite [24], ZrO 2 [25], Au/Graphene [26,27], ZrO 2 [28], SWNT/GO [29], MWCNT [30], Au/Pt [31] and ZrO 2 /MWCNT [32]. The nanomaterials used for detection of CHL were graphene [17], MWCNT [33][34][35], with nano-TiO 2 [36], carbon nitride [37], ferrocene [38], CuO [39].…”

Section: Introductionmentioning

confidence: 99%

“…Conducting polymers have been used as such or in the form of their nanocomposites for detection of CHL through SWV [24,30]. Literature revealed that a wide range of nano-composites has been employed for the detection of various OPs [24][25][26][27][28][29][30][31][32], including CHL [33][34][35][36][37][38][39]. To the best of our knowledge, no records are available on electrochemical detection of CHL over PNCs derived through immobilization of WC into PIN matrix.…”

Section: Introductionmentioning

confidence: 99%

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Development of polyindole/tungsten carbide nanocomposite-modified electrodes for electrochemical quantification of chlorpyrifos

et al. 2019

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The present investigation deals with the development of a novel polymer nanocomposite (PNCs) electrodes for simple, selective and sensitive detection of chlorpyrifos (CHL). PNCs were developed using surfactant facilitated polymerization of indole using different concentrations (wt%) of WC ranging 5-30. Formation of PNCs was ascertained through diversified analytical methods. Electrodes were derived from PNCs over stainless steel substrate for electrochemical quantification of CHL. With concentration of WC, the DC conductivity (10 −2 × S/cm) of electrodes was increased ranging 3.54-0.75 at 313 K. Electrochemical impedance spectroscopy reveals well stability of electrodes in phosphate buffer (PBS, 0.1 M) at pH 7.4. The performance of electrodes towards detection and quantification of CHL was investigated through square wave voltammetry. Study reveals that detection and quantification of CHL were dependent on concentration of WC in nanocomposites. Square wave voltammetry reveals that the electrode derived from PNCs with 5 wt% of WC has rendered highest limits of detection and quantification of CHL (10 −8 mol/L) up to 5.94 and 18. This work describes a viable method of preparation of synergistic blend of WC in PIN matrix having high electrical conductivity, rapid electron shift, huge surface area and enhanced stability for fast and précised electrochemical detection of CHL.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of polyindole/tungsten carbide nanocomposite-modified electrodes for electrochemical quantification of chlorpyrifos

et al. 2019

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“…The title compound malathion ( S-bis (etoxycarbonyl) ethyl O , O -dimetyl phosphorodithioate), is a broad spectrum, nonsystemic insecticide belonging to the OP class. It is extensively used in public health programs against mosquito-borne illness, fruit fly eradication programs and indoor and outdoor residentals [ 3 ]. Malathion (MLT) is also included in some special shampoos for controlling lice.…”

Section: Introductionmentioning

confidence: 99%

Non-Enzymatic Electrochemical Sensing of Malathion Pesticide in Tomato and Apple Samples Based on Gold Nanoparticles-Chitosan-Ionic Liquid Hybrid Nanocomposite

Bolat

Abacı

2018

Sensors

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Malathion (MLT) is an organophosphorous type pesticide and having seriously high toxicity and electrochemical platforms for rapid, simple, inexpensive and sensitive determination of pesticides is still a special concern. This paper describes a simple preparation of a composite film consisting of ionic liquid (IL), chitosan (CS) and electrochemically synthesized gold nanoparticles (AuNPs) on single use pencil graphite electrodes (PGEs). The microscopic and electrochemical characterization of AuNP-CS-IL/PGE was studied using scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. This fabricated surface was then explored for the first time as a sensing matrix for the non-enzymatic electrochemical sensing of malathion by cyclic voltammetry and square wave voltammetry measurements. The proposed AuNP-CS-IL/PGE showed excellent characteristics and possessed remarkable affinity for malathion. The voltammetric current response exhibited two linear dynamic ranges, 0.89–5.94 nM and 5.94–44.6 nM reflecting two binding sites, with a detection limit of 0.68 nM. The method was applied in real sample analysis of apple and tomato. The results demonstrate the feasibility of AuNP-CS-IL-modified electrodes for simple, fast, ultrasensitive and inexpensive detection of MLT.

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“…The fiber size effects the electrical and optical properties of polyaniline fiber and it plays significantly to sensitivity of detection in sensor applications [4]. Various methods have been developed to synthesize fiber polyaniline, such polymerization methods interfacial [5], electrospinning [6], chemical oxidative polymerization [7] and bulk polymerization [8]. Polyaniline material is easily synthesized through a chemical or electrochemical process, but polyaniline in the fiber structure was successfully shaped by using interfacial or electrospinning.…”

Section: Introductionmentioning

confidence: 99%

Electrical Conductivity of Polyaniline Fiber Synthesized by Interfacial Polymerization and Electrospinning

Umiati

Abraha

Triyana

2017

IJEECS

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Electrochemical sensor based on polyaniline nanofibers/single wall carbon nanotubes composite for detection of malathion

Cited by 81 publications

References 29 publications

Development of polyindole/tungsten carbide nanocomposite-modified electrodes for electrochemical quantification of chlorpyrifos

Development of polyindole/tungsten carbide nanocomposite-modified electrodes for electrochemical quantification of chlorpyrifos

Non-Enzymatic Electrochemical Sensing of Malathion Pesticide in Tomato and Apple Samples Based on Gold Nanoparticles-Chitosan-Ionic Liquid Hybrid Nanocomposite

Electrical Conductivity of Polyaniline Fiber Synthesized by Interfacial Polymerization and Electrospinning

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