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The 8th International Symposium on Sensor Science by Laroussi, Arwa (author);Raouafi, Noureddine (author);Mirsky, Vladimir (author) is a nonfiction available to read on EtoBox.

What is The 8th International Symposium on Sensor Science about?

The fast and selective determination of hydrogen peroxide (H 2 O 2 ) is of importance not only because of strong interest in this widely applied analyte, but also because of the development of enzymatic biosensors for glucose or other metabolites where the sensor for H 2 O 2 can be used as the transducer. Here, we report on an electrocatalytical amperometric sensor for the detection of H 2 O 2 . It is a sensor that consists of a gold electrode covered by a self-assembled monolayer (SAM) with immobilized p-benzoquinone. To provide highly stable immobilization of p-benzoquinone at the distance of effective electron tunneling, a new anchor compound-1,3-dimercaptopropan-2-ol-was synthesized and used for preparation of the SAM. Due to two thiol groups binding gold surface, this compound provides high stability of the SAM. The surface concentration of pbenzoquinone obtained from cyclic voltammetry is 2.5 ± 0.2 × 10 -10 mol•cm -2 . Cyclic voltammetry and chronoamperometry experiments proved that the immobilized benzoquinone exhibited high electrocatalytic activity towards the decomposition of H 2 O 2 . Depending on the used potential range, different sensing modes can be realized. For exa

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Author

Laroussi, Arwa (author);Raouafi, Noureddine (author);Mirsky, Vladimir (author)

Publisher

MDPI

Published

2021

Language

EN

Category

nonfiction