2014
DOI: 10.1016/j.electacta.2013.11.021
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Electrografting of N’,N’-dimethylphenothiazin-5-ium-3,7-diamine (Azure A) diazonium salt forming electrocatalytic organic films on gold or graphene oxide gold hybrid electrodes

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Cited by 27 publications
(19 citation statements)
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“…The total surface concentration of electroactive groups for the electrografted electrode is therefore 8.4 × 10 -8 mol cm -2 with 86% of the redox activity corresponding to the polymeric electrografted groups and a smaller fraction due to adsorbed and/or monomer-type Azure A. The determined surface concentrations are significantly greater than the estimated theoretical value for a densely packed Azure A monolayer in a planar conformation oriented perpendicular to an electrode surface of ≥ 7.6 × 10 -10 mol cm -2 [25] . The surface concentrations for the modified electrodes reported here are also significantly greater than previously observed at multiwalled carbon nanotube electrodes (9.2 × 10 −10 mol cm −2 ) [37] .…”
Section: (1)mentioning
confidence: 64%
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“…The total surface concentration of electroactive groups for the electrografted electrode is therefore 8.4 × 10 -8 mol cm -2 with 86% of the redox activity corresponding to the polymeric electrografted groups and a smaller fraction due to adsorbed and/or monomer-type Azure A. The determined surface concentrations are significantly greater than the estimated theoretical value for a densely packed Azure A monolayer in a planar conformation oriented perpendicular to an electrode surface of ≥ 7.6 × 10 -10 mol cm -2 [25] . The surface concentrations for the modified electrodes reported here are also significantly greater than previously observed at multiwalled carbon nanotube electrodes (9.2 × 10 −10 mol cm −2 ) [37] .…”
Section: (1)mentioning
confidence: 64%
“…A wide variety of carbon substrates have been modified by diazonium grafting including GC, graphene oxide, pyrolysed photoresist film (PPF) and carbon nanotubes [20,21,[23][24][25][26] .…”
Section: Introductionmentioning
confidence: 99%
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“…Neste contexto, a redução eletroquímica de um sal de arildiazônio (Doumèche and Blum, 2010;Salimia and Noorbakhsh, 2011;Nasri, Shams and Ahmadi, 2013;Tasca et al, 2013;C. Gómez-Anquela et al, 2014;Liu et al, 2014) e a reação "click" (Garner and Janda, 2010;Ripert, Farre and Chaix, 2013;Ryu, Sibdas Singha Mahapatra and Cho., 2013;Ipek, Dincçer and Koca, 2014;Shen et al, 2014) também têm sido muito utilizadas para funcionalizar a superfície de eletrodos.…”
Section: Eletrodos Modificadosunclassified
“…Para que a ligação ocorra a superfície do transdutor é previamente funcionalizada por moléculas espaçadoras, tais como, carbodiimida, mono ou multicamadas automontadas (Thévenot et al, 2001). A técnica de funcionalização com sal de arildiazônio C. Gómez-Anquela et al, 2014;Liu et al, 2014) também têm sido muito utilizada para modificar covalentemente a superfície do transdutor.…”
Section: Imobilização De Biomoléculasunclassified