Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurements
Biochemical analysis of physiological fluids using, for example, lab-on-a-chip devices requires accurate mixing of two or more fluids. This mixing can be assisted by acoustic microagitation using a piezoelectric material, such as the β-phase of poly(vinylidene fluoride) (β-PVDF). If the analysis is...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2010-01-01
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| Series: | Science and Technology of Advanced Materials |
| Online Access: | http://iopscience.iop.org/1468-6996/11/4/045006 |
| _version_ | 1818987273242279936 |
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| author | Vanessa F Cardoso, Pedro Martins, Gabriela Botelho, Luis Rebouta, Senentxu Lanceros-Méndez and Graca Minas |
| author_facet | Vanessa F Cardoso, Pedro Martins, Gabriela Botelho, Luis Rebouta, Senentxu Lanceros-Méndez and Graca Minas |
| author_sort | Vanessa F Cardoso, Pedro Martins, Gabriela Botelho, Luis Rebouta, Senentxu Lanceros-Méndez and Graca Minas |
| collection | DOAJ |
| description | Biochemical analysis of physiological fluids using, for example, lab-on-a-chip devices requires accurate mixing of two or more fluids. This mixing can be assisted by acoustic microagitation using a piezoelectric material, such as the β-phase of poly(vinylidene fluoride) (β-PVDF). If the analysis is performed using optical absorption spectroscopy and β-PVDF is located in the optical path, the material and its conductive electrodes must be transparent. Moreover, if, to improve the transmission of the ultrasonic waves to the fluids, the piezoelectric transducer is placed inside the fluidic structures, its degradation must be assessed. In this paper, we report on the degradation properties of transparent conductive oxides, namely, indium tin oxide (ITO) and aluminum-doped zinc oxide, when they are used as electrodes for providing acoustic microagitation. The latter promotes mixing of chemicals involved in the measurement of uric acid concentration in physiological fluids. The results are compared with those for aluminum electrodes. We find that β-PVDF samples with ITO electrodes do not degrade either with or without acoustic microagitation. |
| first_indexed | 2024-12-20T19:04:04Z |
| format | Article |
| id | doaj.art-f4e6bdc865a84f61aa30e91680f42eab |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-12-20T19:04:04Z |
| publishDate | 2010-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-f4e6bdc865a84f61aa30e91680f42eab2022-12-21T19:29:20ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142010-01-01114045006Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurementsVanessa F Cardoso, Pedro Martins, Gabriela Botelho, Luis Rebouta, Senentxu Lanceros-Méndez and Graca MinasBiochemical analysis of physiological fluids using, for example, lab-on-a-chip devices requires accurate mixing of two or more fluids. This mixing can be assisted by acoustic microagitation using a piezoelectric material, such as the β-phase of poly(vinylidene fluoride) (β-PVDF). If the analysis is performed using optical absorption spectroscopy and β-PVDF is located in the optical path, the material and its conductive electrodes must be transparent. Moreover, if, to improve the transmission of the ultrasonic waves to the fluids, the piezoelectric transducer is placed inside the fluidic structures, its degradation must be assessed. In this paper, we report on the degradation properties of transparent conductive oxides, namely, indium tin oxide (ITO) and aluminum-doped zinc oxide, when they are used as electrodes for providing acoustic microagitation. The latter promotes mixing of chemicals involved in the measurement of uric acid concentration in physiological fluids. The results are compared with those for aluminum electrodes. We find that β-PVDF samples with ITO electrodes do not degrade either with or without acoustic microagitation.http://iopscience.iop.org/1468-6996/11/4/045006 |
| spellingShingle | Vanessa F Cardoso, Pedro Martins, Gabriela Botelho, Luis Rebouta, Senentxu Lanceros-Méndez and Graca Minas Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurements Science and Technology of Advanced Materials |
| title | Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurements |
| title_full | Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurements |
| title_fullStr | Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurements |
| title_full_unstemmed | Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurements |
| title_short | Degradation studies of transparent conductive electrodes on electroactive poly(vinylidene fluoride) for uric acid measurements |
| title_sort | degradation studies of transparent conductive electrodes on electroactive poly vinylidene fluoride for uric acid measurements |
| url | http://iopscience.iop.org/1468-6996/11/4/045006 |
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