Sensor and biosensor based on Prussian Blue modified gold and platinum screen printed electrodes

I L de Mattos, Lo Gorton, Tautgirdas Ruzgas

Research output: Contribution to journalArticlepeer-review

112 Citations (SciVal)

Abstract

Gold (Au) and platinum (Pt) screen-printed electrodes were modified with Prussian Blue (PB) for the development of amperometric sensors selective for hydrogen peroxide detection. The sensors exhibited sensitivities towards H2O2 equal to 2 A M−1 cm−2 for Au and 1 A M−1 cm−2 for Pt electrodes. The sensors were also employed as the basis for construction of glucose biosensors through further modification with crystallised glucose oxidase immobilised in a Nafion membrane. In order to improve the operational stability of the modified electrodes a buffer solution containing tetrabutylammonium toluene-4-sulfonate was used. The long-term performance of the sensors and biosensors were evaluated by continuous monitoring of hydrogen peroxide and glucose solutions (50 M and 1 mM, respectively) in the flow-injection mode for 10 h.
Original languageEnglish
Pages (from-to)193-200
JournalBiosensors & Bioelectronics
Volume18
Issue number2-3
DOIs
Publication statusPublished - 2003

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)

Subject classification (UKÄ)

  • Analytical Chemistry

Keywords

  • Screen-printed electrodes
  • Prussian Blue
  • Biosensor
  • Amperometric sensor

Fingerprint

Dive into the research topics of 'Sensor and biosensor based on Prussian Blue modified gold and platinum screen printed electrodes'. Together they form a unique fingerprint.

Cite this