Thin film flexible electrodes based on gold/polytetrafluoroethylene layers

JAD McLaughlin, M Hyland, ET McAdams, D Holder, DM Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Thin film gold electrodes on flexible Poltetrafluoroethylene (PTFE) substrates are produced for medical implantation, The electrical interface impedance of the electrodes is measured in vitro as a function of surface roughness of the gold as quantified using atomic force microscopy. Alternating current (A.C) impedance measurements show a linear relationship between tile reactive component of the impedance and the surface roughness, Surface features below 42 nm root mean square deviation from the average surface height are shown to result in it reduction in interface impedance and improved impedance matching to a 1% NaCl solution. The surface roughness of the gold is controlled using an electrolytic etch in a NaCl solution allowing the electrical characteristics of the interface to be influenced, Plasma modification of the PTFE substrate is seen to increase the surface energy by changing the chemical nature of tile polymer and lead to enhanced adhesion of the gold layers, Applications of such techniques are expected to improve the current design of physiolgcal signal sensors as well as enhance the reproduabilty of biosensing devices.
LanguageEnglish
Title of host publicationUnknown Host Publication
Place of Publication345 E 47TH ST, NEW YORK, NY 10017 USA
Pages108-109
Number of pages2
Volume18
Publication statusPublished - 1997
EventPROCEEDINGS OF THE 18TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOL 18, PTS 1-5 -
Duration: 1 Jan 1997 → …

Publication series

NamePROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY
PublisherIEEE

Conference

ConferencePROCEEDINGS OF THE 18TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOL 18, PTS 1-5
Period1/01/97 → …

Fingerprint

polytetrafluoroethylene
gold
surface roughness
electrodes
tiles
impedance
thin films
impedance matching
impedance measurement
surface energy
implantation
alternating current
adhesion
atomic force microscopy
deviation
sensors
polymers

Cite this

McLaughlin, JAD., Hyland, M., McAdams, ET., Holder, D., & Zhou, DM. (1997). Thin film flexible electrodes based on gold/polytetrafluoroethylene layers. In Unknown Host Publication (Vol. 18, pp. 108-109). (PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY). 345 E 47TH ST, NEW YORK, NY 10017 USA.
McLaughlin, JAD ; Hyland, M ; McAdams, ET ; Holder, D ; Zhou, DM. / Thin film flexible electrodes based on gold/polytetrafluoroethylene layers. Unknown Host Publication. Vol. 18 345 E 47TH ST, NEW YORK, NY 10017 USA, 1997. pp. 108-109 (PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY).
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title = "Thin film flexible electrodes based on gold/polytetrafluoroethylene layers",
abstract = "Thin film gold electrodes on flexible Poltetrafluoroethylene (PTFE) substrates are produced for medical implantation, The electrical interface impedance of the electrodes is measured in vitro as a function of surface roughness of the gold as quantified using atomic force microscopy. Alternating current (A.C) impedance measurements show a linear relationship between tile reactive component of the impedance and the surface roughness, Surface features below 42 nm root mean square deviation from the average surface height are shown to result in it reduction in interface impedance and improved impedance matching to a 1{\%} NaCl solution. The surface roughness of the gold is controlled using an electrolytic etch in a NaCl solution allowing the electrical characteristics of the interface to be influenced, Plasma modification of the PTFE substrate is seen to increase the surface energy by changing the chemical nature of tile polymer and lead to enhanced adhesion of the gold layers, Applications of such techniques are expected to improve the current design of physiolgcal signal sensors as well as enhance the reproduabilty of biosensing devices.",
author = "JAD McLaughlin and M Hyland and ET McAdams and D Holder and DM Zhou",
note = "18th Annual International Conference of IEEE Engineering-in-Medicine-amd-Biology-Society, AMSTERDAM, NETHERLANDS, OCT 31-NOV 03, 1996",
year = "1997",
language = "English",
volume = "18",
series = "PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY",
publisher = "IEEE",
pages = "108--109",
booktitle = "Unknown Host Publication",

}

McLaughlin, JAD, Hyland, M, McAdams, ET, Holder, D & Zhou, DM 1997, Thin film flexible electrodes based on gold/polytetrafluoroethylene layers. in Unknown Host Publication. vol. 18, PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, 345 E 47TH ST, NEW YORK, NY 10017 USA, pp. 108-109, PROCEEDINGS OF THE 18TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOL 18, PTS 1-5, 1/01/97.

Thin film flexible electrodes based on gold/polytetrafluoroethylene layers. / McLaughlin, JAD; Hyland, M; McAdams, ET; Holder, D; Zhou, DM.

Unknown Host Publication. Vol. 18 345 E 47TH ST, NEW YORK, NY 10017 USA, 1997. p. 108-109 (PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Thin film flexible electrodes based on gold/polytetrafluoroethylene layers

AU - McLaughlin, JAD

AU - Hyland, M

AU - McAdams, ET

AU - Holder, D

AU - Zhou, DM

N1 - 18th Annual International Conference of IEEE Engineering-in-Medicine-amd-Biology-Society, AMSTERDAM, NETHERLANDS, OCT 31-NOV 03, 1996

PY - 1997

Y1 - 1997

N2 - Thin film gold electrodes on flexible Poltetrafluoroethylene (PTFE) substrates are produced for medical implantation, The electrical interface impedance of the electrodes is measured in vitro as a function of surface roughness of the gold as quantified using atomic force microscopy. Alternating current (A.C) impedance measurements show a linear relationship between tile reactive component of the impedance and the surface roughness, Surface features below 42 nm root mean square deviation from the average surface height are shown to result in it reduction in interface impedance and improved impedance matching to a 1% NaCl solution. The surface roughness of the gold is controlled using an electrolytic etch in a NaCl solution allowing the electrical characteristics of the interface to be influenced, Plasma modification of the PTFE substrate is seen to increase the surface energy by changing the chemical nature of tile polymer and lead to enhanced adhesion of the gold layers, Applications of such techniques are expected to improve the current design of physiolgcal signal sensors as well as enhance the reproduabilty of biosensing devices.

AB - Thin film gold electrodes on flexible Poltetrafluoroethylene (PTFE) substrates are produced for medical implantation, The electrical interface impedance of the electrodes is measured in vitro as a function of surface roughness of the gold as quantified using atomic force microscopy. Alternating current (A.C) impedance measurements show a linear relationship between tile reactive component of the impedance and the surface roughness, Surface features below 42 nm root mean square deviation from the average surface height are shown to result in it reduction in interface impedance and improved impedance matching to a 1% NaCl solution. The surface roughness of the gold is controlled using an electrolytic etch in a NaCl solution allowing the electrical characteristics of the interface to be influenced, Plasma modification of the PTFE substrate is seen to increase the surface energy by changing the chemical nature of tile polymer and lead to enhanced adhesion of the gold layers, Applications of such techniques are expected to improve the current design of physiolgcal signal sensors as well as enhance the reproduabilty of biosensing devices.

M3 - Conference contribution

VL - 18

T3 - PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY

SP - 108

EP - 109

BT - Unknown Host Publication

CY - 345 E 47TH ST, NEW YORK, NY 10017 USA

ER -

McLaughlin JAD, Hyland M, McAdams ET, Holder D, Zhou DM. Thin film flexible electrodes based on gold/polytetrafluoroethylene layers. In Unknown Host Publication. Vol. 18. 345 E 47TH ST, NEW YORK, NY 10017 USA. 1997. p. 108-109. (PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY).