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Indirect Electrochemical Sensing of Radicals and Radical Scavengers in Biological Matrices
Author(s) -
Scholz Fritz,
López de Lara González Gabriela,
Machado de Carvalho Leandro,
Hilgemann Maurício,
Brainina Khenia Z.,
Kahlert Heike,
Jack Robert Smail,
Minh Dang Truong
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200702690
Subject(s) - radical , chemistry , electrochemistry , monolayer , electrode , photochemistry , redox , mercury (programming language) , self assembled monolayer , inorganic chemistry , organic chemistry , biochemistry , computer science , programming language
Breaking cover : Hydroxyl radicals OH . destroy the self‐assembled monolayer (SAM) of hexanethiol on gold and mercury electrodes and thus allow the electrochemical response of the redox couple Ru 2+/3+ to be measured. On a completely SAM‐covered electrode the Ru 2+/3+ signal is absent, thus the recovery of the signal following radical attack is a reliable measure of the radical activity.