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dc.contributor.authorn. diab-
dc.contributor.authorj. oni, $Other$Other-
dc.contributor.authora. schulte, $Other$Other-
dc.contributor.authori. radtke, $Other$Other-
dc.contributor.authora. blochl, $Other$Other-
dc.contributor.authorw. schuhmann, $Other$Other-
dc.description.abstractPyrrole-functionalised tetracarboxyphenyl porphyrin and trimethoxyphenylcarboxy-phenyl porphyrin containing Ni, Mn and Pd as the central metal ion were used to modify Pt-disk microelectrodes (slashed circle 50 mum) (by repetitive cyclic voltammetry, dip-dry and pulse-amperometry methods) for the detection of nitric oxide (NO). Electrodes modified with Mn(II) trimethoxyphenylcarboxyphenyl porphyrin using the pulse amperomery approach, were found to be sensitive, stable and fast in response towards the oxidation of NO. Thus, they were used for the detection of NO release from a population of transformed human umbilical vein endothelial cells (T-HUVEC) into a droplet of electrolyte solution following stimulation with vascular endothelial growth factor (VEGF). The electrode surface was covered with an additional layer of Nafion(R) to prevent interference from anionic molecules such as nitriteen_US
dc.publisherTalanta, 61 (2003) 43-51en_US
dc.titlePyrrole functionalised metalloporphyrins as electrocatalysts for the oxidation of nitric oxideen_US
Appears in Collections:Faculty & Staff Scientific Research publications

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