Controlled chitosan coated Prussian blue nanoparticles with the mixture of graphene nanosheets and carbon nanoshperes as a redox mediator for the electrochemical oxidation of nitrite

Toward point-of-care management of chronic respiratory conditions: Electrochemical sensing of nitrite content in exhaled breath condensate using reduced graphene oxide

“…We determined the detection limit to be 830 nM based on three standard deviations. The detection sensitivity of nitrite in the presence of EBC is comparable with values reported in the literature for nitrite content in various buffers [45][46][47] .…”

“…Nitrite oxidation-based methods with a final product of NO 3 are usually preferred because the presence of interfering molecules (such as oxygen) during reduction can be avoided 33 . However, an oxidation reaction as the basis for detecting nitrite requires a high over-potential 34 ; thus, in recent years, many attempts have been made to develop novel electrode materials [35][36][37][38][39][40][41][42][43][44][45][46][47][48] .…”

Square Wave Voltammetric Detection of Nitrite on Platinum Electrode Modified with Moringa oleifera Mediated Biosynthesized Nickel Nanoparticles

“…In addition, the direct electro-reduction/oxidation of nitrite ions requires high overpotentials at bare electrode surfaces. As a remedy to overcome these limitations, various modified electrodes have been exploited for nitrite determination [18][19][20]. For the purpose of sensing nitrite, electrodes have been chemically modified with facile electron-transfer materials, such as metallophthalocyanines and metalloporphyrins [21][22][23][24].…”

Nitrite detection in meat products samples by square-wave voltammetry at a new single walled carbon naonotubes – myoglobin modified electrode

“…In this context, it is well known that, an effective way to solve this problem and to enhance the electrocatalytic activity of an electrode is to appropriately modify its conventional surface, and thus, to shift the overpotential of the redox reaction. Consequently, some new electrocatalytic systems for nitrite determination were developed using electrodes modified with both inorganic and organic compounds as: copper-thallium composite film (Casella & Gatta, 2004), CuNi alloy (Mattarozzi et al, 2013), polyoxometalates (i.e., a 2 -K 7 P 2 VW 17 O 62 Á18H 2 O) (Zhang, Ma, Chen, Pang, & Yu, 2013), ferricyanide-poly(diallyldimethylammonium)-alginate composite film (Qin et al, 2013), graphene oxide (Mani, Periasamy, & Chen, 2012), graphene oxide-multiwalled carbon nanotubes-Pt nanoparticles/myoglobin (Mani, Dinesh, Chen, & Saraswathi, 2014), graphene oxide/Pd nanoparticles (Zhang, Zhao et al, 2013), graphene--Au nanoparticles (Jiang, Fan, & Du, 2014), graphene/phtalocyanine (Cui, Pu, Liu, & He, 2013), chitosan (CS) -Prussian Blue (PB) and graphene nanosheets -carbon nanospheres mixture (Cui et al, 2012), zeolites (Guzmán-Vargas, Oliver-Tolentino, Lima, & Flores-Moreno, 2013), polydiphenylamine -Pt nanoparticles (Unnikrishnan, Ru, Chen, & Mani, 2013), nanocomposite 3,6-bis(2-[2-sulfanyl-ethylimino-methyl]-4-(4-nitro-phenylazo)-phenol)pyridazine coated SiO 2 -Fe 3 O 4 (L-SCMNPs) in carbon paste electrode (Afkhami et al, 2012), ionic-liquid carbon paste electrode (Ojani, Raoof, & Zamani, 2013), electronic tongue (Nuñez, Cetó, Pividori, Zanoni, & del Valle, 2013), tetraruthenated metalloporphyrins , tetrapyridylporphyrins coordinated to four [Ru(5-NO 2 -phen) 2 Cl] + moieties (Dreyse et al, 2011), organoruthenium(II) complexes onto polyethyleneimine-wrapped carbon nanotubes/in situ formed gold nanoparticles (Azadbakht, Abbasi, Derikvand, & Amraei, 2015), hemoglobin (Saadati, Salimi, Hallaj, & Rostami, 2014), hemin (Turdean, Popescu, Curulli, & Palleschi, 2006) and/or myoglobin (Canbay, S ßahin, Kıran, & Akyilmaz, 2015). Despite the huge number of modified electrodes realized in recent years, a simple solution is always more suitable.…”