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Polypyrrole-coated electrodes show thickness-dependent stability in different conditions during 42-day follow-up in vitro

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Polypyrrole-coated electrodes show thickness-dependent stability in different conditions during 42-day follow-up in vitro. / Alarautalahti, V.; Hiltunen, M.; Onnela, N.; Nymark, S.; Kellomäki, M.; Hyttinen, J.

In: Journal of Biomedical Materials Research. Part B: Applied Biomaterials, Vol. 106, No. 6, 08.2018, p. 2202-2213.

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Alarautalahti, V, Hiltunen, M, Onnela, N, Nymark, S, Kellomäki, M & Hyttinen, J 2018, 'Polypyrrole-coated electrodes show thickness-dependent stability in different conditions during 42-day follow-up in vitro', Journal of Biomedical Materials Research. Part B: Applied Biomaterials, vol. 106, no. 6, pp. 2202-2213. https://doi.org/10.1002/jbm.b.34024

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Alarautalahti, V. ; Hiltunen, M. ; Onnela, N. ; Nymark, S. ; Kellomäki, M. ; Hyttinen, J. / Polypyrrole-coated electrodes show thickness-dependent stability in different conditions during 42-day follow-up in vitro. In: Journal of Biomedical Materials Research. Part B: Applied Biomaterials. 2018 ; Vol. 106, No. 6. pp. 2202-2213.

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@article{a5dd52125d5e47cc839807bafdf53a91,
title = "Polypyrrole-coated electrodes show thickness-dependent stability in different conditions during 42-day follow-up in vitro",
abstract = "Electroconductive polypyrrole/dodecylbenzenesulphonate (PPy/DBS) has been proposed as novel electrode coating for biomedical applications. However, as yet, little is known about its long-term stability in moist conditions. This study compares the stability of PPy/DBS-coated platinum electrodes that are either dry-stored, incubated, or both incubated and electrically stimulated. The electrical and material properties of three different coating thicknesses were monitored for 42 days. Initially, the PPy/DBS-coating decreased the low frequency impedance of the platinum electrodes by 52{\%} to 79{\%}. The dry-stored electrodes remained stable during the follow-up, whereas the properties of all the incubated electrodes were altered in three stages with thickness-dependent duration: stabilization, stable, and degradation. The coated electrodes would be applicable for short-term, low-frequency in vitro measurements of up to 14 days without electrical stimulation, and up to 7 days with stimulation. The coating thickness is bound to other coating properties, and should therefore be selected according to the specific target application. {\circledC} 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2017.",
keywords = "Journal Article",
author = "V. Alarautalahti and M. Hiltunen and N. Onnela and S. Nymark and M. Kellom{\"a}ki and J. Hyttinen",
note = "{\circledC} 2017 Wiley Periodicals, Inc.",
year = "2018",
month = "8",
doi = "10.1002/jbm.b.34024",
language = "English",
volume = "106",
pages = "2202--2213",
journal = "Journal of Biomedical Materials Research. Part B: Applied Biomaterials",
issn = "1552-4973",
publisher = "Wiley",
number = "6",

}

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TY - JOUR

T1 - Polypyrrole-coated electrodes show thickness-dependent stability in different conditions during 42-day follow-up in vitro

AU - Alarautalahti, V.

AU - Hiltunen, M.

AU - Onnela, N.

AU - Nymark, S.

AU - Kellomäki, M.

AU - Hyttinen, J.

N1 - © 2017 Wiley Periodicals, Inc.

PY - 2018/8

Y1 - 2018/8

N2 - Electroconductive polypyrrole/dodecylbenzenesulphonate (PPy/DBS) has been proposed as novel electrode coating for biomedical applications. However, as yet, little is known about its long-term stability in moist conditions. This study compares the stability of PPy/DBS-coated platinum electrodes that are either dry-stored, incubated, or both incubated and electrically stimulated. The electrical and material properties of three different coating thicknesses were monitored for 42 days. Initially, the PPy/DBS-coating decreased the low frequency impedance of the platinum electrodes by 52% to 79%. The dry-stored electrodes remained stable during the follow-up, whereas the properties of all the incubated electrodes were altered in three stages with thickness-dependent duration: stabilization, stable, and degradation. The coated electrodes would be applicable for short-term, low-frequency in vitro measurements of up to 14 days without electrical stimulation, and up to 7 days with stimulation. The coating thickness is bound to other coating properties, and should therefore be selected according to the specific target application. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2017.

AB - Electroconductive polypyrrole/dodecylbenzenesulphonate (PPy/DBS) has been proposed as novel electrode coating for biomedical applications. However, as yet, little is known about its long-term stability in moist conditions. This study compares the stability of PPy/DBS-coated platinum electrodes that are either dry-stored, incubated, or both incubated and electrically stimulated. The electrical and material properties of three different coating thicknesses were monitored for 42 days. Initially, the PPy/DBS-coating decreased the low frequency impedance of the platinum electrodes by 52% to 79%. The dry-stored electrodes remained stable during the follow-up, whereas the properties of all the incubated electrodes were altered in three stages with thickness-dependent duration: stabilization, stable, and degradation. The coated electrodes would be applicable for short-term, low-frequency in vitro measurements of up to 14 days without electrical stimulation, and up to 7 days with stimulation. The coating thickness is bound to other coating properties, and should therefore be selected according to the specific target application. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2017.

KW - Journal Article

U2 - 10.1002/jbm.b.34024

DO - 10.1002/jbm.b.34024

M3 - Article

VL - 106

SP - 2202

EP - 2213

JO - Journal of Biomedical Materials Research. Part B: Applied Biomaterials

JF - Journal of Biomedical Materials Research. Part B: Applied Biomaterials

SN - 1552-4973

IS - 6

ER -