Direct comparison of anti-interference property for bimetallic PtAu, PtIr, and PtRu nanoparticle catalysts in amperometric detection for H 2O2 based biosensors

M. Janyasupab, Y. Zhang, C. W. Liu, C. C. Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Platinum based bimetallic nano electrocatalysts such as PtAu, PtIr and PtRu appear to be very unique toward H2O2 oxidation due to their composition, morphology, shape, surface active site and other properties. Enzymatic reactions often produce H2O2 as a byproduct. Therefore, an electrocatalyst reacts favorably with H2O2 will enhance the detection of the analyte in biosensing. This study describes the synthesis and characterization of these bimetallic electrocatalysts and their electrochemical oxidation with H2O2 and their reactions with essential interference species, such as ascorbic acid, uric acid and others. A minute interference by PtIr and PtRu nano electrocatalysts are found minimizing the effect contributed by ascorbic acid, uric acid, dopamine and acetaminophen. The results of this study will aid in the design of H 2O2 sensing based biosensors using the platinum based bimetallic electrocatalysts enhancing their performance.

Original languageEnglish
Title of host publicationChemical Sensors 10 -and- MEMS/NEMS 10
PublisherElectrochemical Society Inc.
Pages195-204
Number of pages10
Edition12
ISBN (Print)9781607683605
DOIs
StatePublished - 2013
EventSymposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012 - Honolulu, HI, United States
Duration: 7 Oct 201212 Oct 2012

Publication series

NameECS Transactions
Number12
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceSymposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012
Country/TerritoryUnited States
CityHonolulu, HI
Period7/10/1212/10/12

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