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Issue 4, 2009
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Comparative study of poly(styrene-sulfonate)/poly(L-lysine) and fibronectin as biofouling-preventing layers in dissolved oxygen electrochemical measurements

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Abstract

Oxygen is a major actor of many physiological, biological and industrial processes; as such, its monitoring is of paramount importance. The effects of protein biofouling on dissolved oxygen measurements are described. The consequences of protein adsorption on electrode kinetics and mass transport were quantified using cyclic voltammetry, AC impedance and rotating disc amperometry, firstly in a solution of albumin, secondly in a complex protein suspension of liver tissue. The effect of membrane coatings poly(styrene-sulfonate)/poly(L-lysine) and fibronectin were investigated. The relative significance on mass transport, surface diffusion and electrocatalysis were examined by comparing the experimental data for an outer-sphere redox couple, ruthenium hexaammine (III)/(II), with the physiologically significant electrocatalytic O2reduction reaction.

Graphical abstract: Comparative study of poly(styrene-sulfonate)/poly(L-lysine) and fibronectin as biofouling-preventing layers in dissolved oxygen electrochemical measurements

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Article information


Submitted
15 Jul 2008
Accepted
16 Jan 2009
First published
09 Feb 2009

Analyst, 2009,134, 784-793
Article type
Paper

Comparative study of poly(styrene-sulfonate)/poly(L-lysine) and fibronectin as biofouling-preventing layers in dissolved oxygen electrochemical measurements

R. Trouillon, C. Cheung, B. A. Patel and D. O'Hare, Analyst, 2009, 134, 784
DOI: 10.1039/B811958A

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