Electrochemical detection of benzo(a)pyrene and related DNA damage using DNA/hemin/nafion–graphene biosensor

Ni, Yongnian; Wang, Pingping; Song, Haiyan; Lin, Xiaoyun; Kokot, Serge

doi:10.1016/j.aca.2014.03.006

Cited by 59 publications

(24 citation statements)

References 46 publications

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“…Various methods have been used to realize hemin-modified electrodes, such as entrapment in a polymeric matrix [5,6], adsorption on different carbon nanomaterials [3,7], drop casting [1], layer-by-layer deposition [8], incorporation in carbon paste [9], etc. Nevertheless, other new alternatives should be investigated in order to increase the performances of the hemin-based electrodes.…”

Section: Introductionmentioning

confidence: 99%

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Deac

Morar

Turdean

et al. 2016

J Solid State Electrochem

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In an attempt to increase the stability and efficiency of hemin-modified electrodes, the present work reports the preparation of a new modified glassy carbon electrode obtained by immobilization of hemin (Hm) on the electrode surface together with a new N-substituted melamine (2,4,6-triamino-1,3,5-triazine) based G-2 dendrimer comprising paminophenol as peripheral unit (Den) or with one of its analogues, a melamine G-0 dimer (Dim). Basic structural features, able to determine intimate relationships between Hm and Dim (or Den) at room temperature in solid state, were evidenced with the use of vibrational analysis carried out by FT-IR. This method revealed contacts between Hm and Dim or Den respectively as H-bond interactions, proton-interchange, and π-π stacking interactions. The new modified electrodes were characterized by cyclic voltammetry and electrochemical impedance spectroscopy and tested for amperometric detection of H 2 O 2 . In this purpose, GC/Hm-Dim electrode exhibited better catalytic properties than GC/Hm-Den electrode, but lower stability.

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Section: Introductionmentioning

confidence: 99%

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Deac

Morar

Turdean

et al. 2016

J Solid State Electrochem

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“…It should be noted here that, most of the cases GO/rGO mixed with ethanolic Nf solution either by ultrasonication or by stirring at room temperature to form homogeneous mixture and directly coated on electrode surface for further use [61][62][63][64][65][66]. Nf also can be used as layer film over the modified electrode to stabilized the electrode material [67].…”

Section: Chemical Polymerizationmentioning

confidence: 98%

Development of Biosensors from Polymer Graphene Composites

Dey

2015

Graphene-Based Polymer Nanocomposites in Electronics

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Graphene has been considered as excellent two dimensional support in recent-times for next-generation graphene-polymer composites towards the development of biosensors. The remarkable properties of polymer and graphene with respect to electrical, mechanical, optical and structural aspect offers an ideal composite support for the development of biosensor. The frontiers of this composites technology is by combining of the polymer and graphene through synergy to achieve the goal of enhanced performance of biosensors with good efficiency and cost effectiveness. Graphene combined with polymer enhances the performance of biosensors in terms of sensitivity, selectivity, response time, and multiplexing capability of biosensors for clinical diagnostics. In this chapter, various methods have been provided to produce the polymer-based graphene composite materials and also discussed the importance of the composite materials to the development of biosensors for clinically important analytes, DNAs, aptamers and immunosensors.

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“…A lengthy and laborious pre-concentration step is often required for GC or LC methods, which hinders their use in field analysis. Therefore, alternative techniques have been proposed for the in situ PAH identification, including electrochemical methods [3], and spectroscopic methods such as surface-enhanced Raman spectroscopy (SERS) [4,5]. SERS, with its potential for extremely high enhancement levels, transforms Raman spectroscopy from a structural analytical tool to a structurally sensitive single-molecule probe [6].…”

Section: Introductionmentioning

confidence: 99%

Au nanoparticles grafted on Fe3O4 as effective SERS substrates for label-free detection of the 16 EPA priority polycyclic aromatic hydrocarbons

Sun

et al. 2016

Analytica Chimica Acta

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Electrochemical detection of benzo(a)pyrene and related DNA damage using DNA/hemin/nafion–graphene biosensor

Cited by 59 publications

References 46 publications

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Development of Biosensors from Polymer Graphene Composites

Au nanoparticles grafted on Fe3O4 as effective SERS substrates for label-free detection of the 16 EPA priority polycyclic aromatic hydrocarbons

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