Graphene nanosheets modified glassy carbon electrode for simultaneous detection of heroine, morphine and noscapine

Navaee, Aso; Salimi, Abdollah; Teymourian, Hazhir

doi:10.1016/j.bios.2011.10.018

Cited by 126 publications

(52 citation statements)

References 56 publications

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“…GO was synthesized using modified hummers method as described in our previous work [39]. In brief, 1 g graphite powder was added to 3 g of NaNO 3 and 70 ml of concentrated H 2 SO 4 and stirred for 30 min in an ice bath.…”

Section: Synthesis Of Pt/n-grmentioning

confidence: 99%

Facile one-pot synthesis of platinum nanoparticles decorated nitrogen-graphene with high electrocatalytic performance for oxygen reduction and anodic fuels oxidation

Navaee

Salimi

Soltanian

et al. 2015

Journal of Power Sources

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Section: Synthesis Of Pt/n-grmentioning

confidence: 99%

Facile one-pot synthesis of platinum nanoparticles decorated nitrogen-graphene with high electrocatalytic performance for oxygen reduction and anodic fuels oxidation

Navaee

Salimi

Soltanian

et al. 2015

Journal of Power Sources

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“…Differential pulse Electronic supplementary material The online version of this article (doi:10.1007/s00604-017-2261-9) contains supplementary material, which is available to authorized users. voltammetric sensors have been also developed using graphene electrodes [13], multi walled carbon nanotubes (MWCNT) [14] and double stranded DNA-modified gold electrodes [15]. Li et al [16] have reported a linear weep voltammetric method for the detection of MOR using graphene oxide/ MWCNT modified electrodes.…”

Section: Introductionmentioning

confidence: 99%

Competitive voltammetric morphine immunosensor using a gold nanoparticle decorated graphene electrode

Eissa

Zourob

2017

Microchim Acta

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The authors describe a voltammetric immunosensor for morphine (MOR) that is based on a graphene screen printed electrode (GSPE) modified with gold nanoparticles (AuNP) which were electrodeposited on its surface. The gold nanoparticles were characterized by scanning electron microscopy, Xray photoelectron spectroscopy and cyclic voltammetry. Cysteamine was then self-assembled on the gold-modified electrodes via thiol interaction in order to introduce terminal amino groups to the electrode surface. The electrodes were then used to fabricate the immunosensor by covalent immobilization of antibodies against MOR. The sensor works on the basis of a competition between MOR and the morphine-bovine serum albumin (MOR-BSA) conjugate for the immobilized antibodies on the sensor surface and the resulting change in the square wave voltammetry reduction current using the hexacyanoferrate system as an electrochemical probe. The competitive immunoassay enables sensitive and selective detection of MOR in the 0.1 to 100 ng·mL −1 MOR concentration range, with a 90 pg·mL −1 detection limit. The method was applied to the determination of MOR in spiked saliva samples and showed high recoveries. We believe that this immunosensor offers a simple, rapid, sensitive and accurate MOR test.

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“…Chemical modification of inert substrate electrodes with redox-active thin films offers significant advantages in the design and development of electrochemical sensors. In operation, the redox-active sites shuttle electrons between the analyte and the electrodes with a significant reduction in activation overpotentialm (Dumitru et al 2014;Navaee et al 2012;Beitollahi et al 2008;Molaakbari et al 2014a, b;Oliveira et al 2015). A further advantage of chemically modified electrodes is that they are less prone to surface fouling and oxide formation compared to inert substrate electrodes (Palanisamy et al 2012;Gupta et al 2002Gupta et al , 2011aNorouzi et al 2005;Gupta et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of novel TiO2 nanoparticles/Mn(III) salen doped carbon paste electrode: application as electrochemical sensor for the determination of hydrazine in the presence of phenol

Mahmoudi–Moghaddam

Beitollahi

Tajik

et al. 2015

Environ Monit Assess

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Hydrazine and phenol are two important environmental pollutants. In this work, an electrochemical sensor for the selective and sensitive detection of hydrazine in presence of phenol was developed by the bulk modification of carbon paste electrode (CPE) with TiO2 nanoparticles and Mn(III) salen. Large peak separation, good sensitivity, and stability allow this modified electrode to analyze hydrazine individually and simultaneously along with phenol. Applying square wave voltammetry (SWV), a linear dynamic range of 3 × 10(-8)-4.0 × 10(-4) M with detection limit of 10.0 nM was obtained for hydrazine. Finally, the proposed method was applied to the determination of hydrazine and phenol in some real samples.

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Graphene nanosheets modified glassy carbon electrode for simultaneous detection of heroine, morphine and noscapine

Cited by 126 publications

References 56 publications

Facile one-pot synthesis of platinum nanoparticles decorated nitrogen-graphene with high electrocatalytic performance for oxygen reduction and anodic fuels oxidation

Facile one-pot synthesis of platinum nanoparticles decorated nitrogen-graphene with high electrocatalytic performance for oxygen reduction and anodic fuels oxidation

Competitive voltammetric morphine immunosensor using a gold nanoparticle decorated graphene electrode

Fabrication of novel TiO2 nanoparticles/Mn(III) salen doped carbon paste electrode: application as electrochemical sensor for the determination of hydrazine in the presence of phenol

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