STUDY OF A NOVEL [Cu^sup II^(TPP)]/NAFION FILM ELECTRODE FOR THE DETECTION OF NITRIC OXIDE RADICAL (NO)

From: Collection of Czechoslovak Chemical Communications | Date: May 1, 2006| Author: Wang, Ya-Zhen; Chen, Wan-Hua; Hu, Sheng-Shui | Copyright information

A novel modified platinum electrode coated with copper(II)-5, 10,15,20-tetraphenylporphyrin, [Cu^sup II^(TPP)], has been developed. The electrochemical behavior of NO at the modified electrode was studied by cyclic and differential pulse voltammetries. In a deoxygenated phosphate-buffered saline solution (pH 7.4), the [Cu^sup II^(TPP)]/Nafion-modified Pt electrode exhibits a strong electrocatalytic effect and stability to oxidation with NO and can be employed as a NO sensor. In this system, t...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

Cellular and Subcellular Localization of Endogenous Nitric Oxide in Young and Senescent Pea Plants1,2
Plant Physiology ; The cellular and subcellular localization of endogenous nitric oxide (NO^sup in leaves from young and senescent pea (Pisum sativum) plants was studied. Confocal laser scanning microscopy analysis of pea leaf sections with the fluorescent probe 4,5-diaminofluorescein diacetate revealed that
Simultaneous Assessment of Endothelial Function, Nitric Oxide Synthase Activity, Nitric Oxide-Mediated Signaling, and Oxidative Stress in Individuals with and without Hypercholesterolemia
Clinical Chemistry ; BACKGROUND: Endothelial function is impaired in hypercholesterolemia and atherosclerosis. Based on mostly indirect evidence, this impairment is attributed to reduced synthesis or impaired biological activity of endothelium-derived nitric oxide (NO). It was the aim of this study to directly estimate
Chain-breaking antioxidant and cytoprotective action of nitric oxide on photodynamically stressed tumor cells[para]
Photochemistry and Photobiology ; ABSTRACT Nitric oxide (^sup *^NO) has a multitude of physiological roles, including the ability to protect cells against oxidant-induced killing, e.g. by inhibiting caspase-mediated apoptosis or by intercepting damaging free radicals derived from membrane lipids. The purpose of this study was to
Chloroplasts as a Nitric Oxide Cellular Source. Effect of Reactive Nitrogen Species on Chloroplastic Lipids and Proteins1
Plant Physiology ; Nitric oxide (NO) generation by soybean (Glycine max var. ADM 4800) chloroplasts was studied as an endogenous product assessed by the electron paramagnetic resonance spin-trapping technique. Nitrite and L-arginine (Arg) are substrates for enzymatic activities considered to be the possible sources
NO use: nitric oxide. (use of nitric oxide in the body)
The Economist (US) ; UNLIKE its near namesake nitrous oxide, nitric oxide is no cause for laughter: it produces lung-searing smogs and acid rain. But biochemists have started to find that nitric oxide does apparently useful things in people's bodies. It helps to fight infections and cancers, control blood pressure,