Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) Nanoparticles
Novel bimetallic nanoparticles have been synthesized via rapid microwave irradiation, leading to an improved sensitivity and a highly anti-interference property for amperometric biosensor in H2O2 detection. The material characterizations were performed by TEM,...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.1155/2012/410846 |
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| author | Yuan Zhang Metini Janyasupab Chen-Wei Liu Po-Yuan Lin Kuan-Wen Wang Jiaqiang Xu Chung-Chiun Liu |
| author_facet | Yuan Zhang Metini Janyasupab Chen-Wei Liu Po-Yuan Lin Kuan-Wen Wang Jiaqiang Xu Chung-Chiun Liu |
| author_sort | Yuan Zhang |
| collection | DOAJ |
| description | Novel bimetallic nanoparticles have been synthesized via rapid microwave irradiation, leading to an improved sensitivity and
a highly anti-interference property for amperometric biosensor in H2O2 detection. The material characterizations
were performed by TEM, XRD, and EDX, which show the bimetallic formation of Pt-based catalysts and well-dispersed nanoparticles of
2–5 nm. The sensitivities for the detection of H2O2 of PtRu, PtAu, and PtIr as the biosensor working electrode catalysts are 539.01 (R2=0.99), 415.46 (R2=0.99), and 404.52 (R2=0.97) μA mM−1 cm-2, respectively, nearly twice higher than the pure Pt catalyst (221.77 μA mM−1 cm−2, R2=0.98), at a low applied potential of +0.25 V versus Ag/AgCl. Furthermore, Pt-Ru and Pt-Ir show a highly sensitive response and a promising anti-interference capability to ascorbic acid, a major interferent, by reducing the interferent current as low as 7-8% significantly lower than that of Pt (30% change). The enhancement of both sensitivity and selectivity in the bimetallic catalysts can be found practical applications in biosensing. |
| format | Article |
| id | doaj-art-eab7a4b17e994547badd4d2931bf7dd3 |
| institution | DOAJ |
| issn | 2090-3529 2090-3537 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-eab7a4b17e994547badd4d2931bf7dd32025-08-20T03:20:39ZengWileyInternational Journal of Electrochemistry2090-35292090-35372012-01-01201210.1155/2012/410846410846Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) NanoparticlesYuan Zhang0Metini Janyasupab1Chen-Wei Liu2Po-Yuan Lin3Kuan-Wen Wang4Jiaqiang Xu5Chung-Chiun Liu6Department of Chemistry, Shanghai University, Shanghai 200444, ChinaDepartment of Chemical Engineering, Case Western Reserve University, Cleveland, OH 44106, USAInstitute of Materials Science and Engineering, National Central University, Chung-Li 320, TaiwanDepartment of Material Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USAInstitute of Materials Science and Engineering, National Central University, Chung-Li 320, TaiwanDepartment of Chemistry, Shanghai University, Shanghai 200444, ChinaDepartment of Chemical Engineering, Case Western Reserve University, Cleveland, OH 44106, USANovel bimetallic nanoparticles have been synthesized via rapid microwave irradiation, leading to an improved sensitivity and a highly anti-interference property for amperometric biosensor in H2O2 detection. The material characterizations were performed by TEM, XRD, and EDX, which show the bimetallic formation of Pt-based catalysts and well-dispersed nanoparticles of 2–5 nm. The sensitivities for the detection of H2O2 of PtRu, PtAu, and PtIr as the biosensor working electrode catalysts are 539.01 (R2=0.99), 415.46 (R2=0.99), and 404.52 (R2=0.97) μA mM−1 cm-2, respectively, nearly twice higher than the pure Pt catalyst (221.77 μA mM−1 cm−2, R2=0.98), at a low applied potential of +0.25 V versus Ag/AgCl. Furthermore, Pt-Ru and Pt-Ir show a highly sensitive response and a promising anti-interference capability to ascorbic acid, a major interferent, by reducing the interferent current as low as 7-8% significantly lower than that of Pt (30% change). The enhancement of both sensitivity and selectivity in the bimetallic catalysts can be found practical applications in biosensing.http://dx.doi.org/10.1155/2012/410846 |
| spellingShingle | Yuan Zhang Metini Janyasupab Chen-Wei Liu Po-Yuan Lin Kuan-Wen Wang Jiaqiang Xu Chung-Chiun Liu Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) Nanoparticles International Journal of Electrochemistry |
| title | Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) Nanoparticles |
| title_full | Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) Nanoparticles |
| title_fullStr | Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) Nanoparticles |
| title_full_unstemmed | Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) Nanoparticles |
| title_short | Improvement of Amperometric Biosensor Performance for H2O2 Detection based on Bimetallic PtM (M = Ru, Au, and Ir) Nanoparticles |
| title_sort | improvement of amperometric biosensor performance for h2o2 detection based on bimetallic ptm m ru au and ir nanoparticles |
| url | http://dx.doi.org/10.1155/2012/410846 |
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