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Preface for Publication of the Special Issue of I3S 2004
Sensors 2005, 5(4), 161-170; doi:10.3390/s5040161
Article

Nitric Oxide Detection with Glassy Carbon Electrodes Coated with Charge-different Polymer Films

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Received: 9 June 2004; Accepted: 28 October 2004 / Published: 26 April 2005
(This article belongs to the Special Issue Papers presented at I3S2004, Nanjing)
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Abstract: Trace amounts of nitric oxide (NO) have been determined in aqueous phosphate buffersolutions (pH=7.4) by using a glassy carbon electrode coated with three charge-different polymerfilms. The glassy carbon electrode was coated first with negatively charged Nafion film containingtetrakis(pentafluorophenylporphyrin) iron(III) chloride (Fe(III)TPFPP) as the NO oxidation catalyst,and then with positively charged poly(acrylamide-co-diallyldimethylammonium chloride) (PADDA)and with neutral poly(dimethylsiloxane) (silicone) at the outermost layer. This polymer-coatedelectrode showed an excellent selectivity towards NO against possible concomitants in blood such asnitrite, ascorbic acid, uric acid, and dopamine. All current ratios between each concomitant and NOat the cyclic voltammogram was in 10-3 ~ 10-4. This type of electrode showed a detection limit of80 nM for NO. It was speculated from the electrochemical study in methanol that high-valent oxoiron(IV) of Fe(TPFPP) participated in the catalytic oxidation of NO.
Keywords: polymer-coated electrode; nitric oxide detection; tetrakis(pentafluoro-phenylporphyrin)iron(III) chloride. polymer-coated electrode; nitric oxide detection; tetrakis(pentafluoro-phenylporphyrin)iron(III) chloride.
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Ikeda, O.; Yoshinaga, K.; Lei, J. Nitric Oxide Detection with Glassy Carbon Electrodes Coated with Charge-different Polymer Films. Sensors 2005, 5, 161-170.

AMA Style

Ikeda O, Yoshinaga K, Lei J. Nitric Oxide Detection with Glassy Carbon Electrodes Coated with Charge-different Polymer Films. Sensors. 2005; 5(4):161-170.

Chicago/Turabian Style

Ikeda, Osamu; Yoshinaga, Kumiko; Lei, Jianping. 2005. "Nitric Oxide Detection with Glassy Carbon Electrodes Coated with Charge-different Polymer Films." Sensors 5, no. 4: 161-170.


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