Increasing biosensor response through hydrogel thin film deposition: Influence of hydrogel thickness

Laura Montero; Gemma Gabriel; Anton Guimerà; Rosa Villa; Karen K. Gleason; Salvador Borrós

doi:10.1016/j.vacuum.2012.06.002

Increasing biosensor response through hydrogel thin film deposition: Influence of hydrogel thickness

Laura Montero, Gemma Gabriel, Anton Guimerà, Rosa Villa, Karen K. Gleason, Salvador Borrós

Research output: Indexed journal article › Article › peer-review

19 Citations (Scopus)

Abstract

An impedance sensor has been covered with an ultrathin film of the hydrogel poly(hydroxyethyl methacrylate) (pHEMA) by initiated chemical vapor deposition (iCVD) and the influence of the film thickness has been evaluated. The deposited film swells rapidly and reversibly in solution allowing the passage of the analyte. Electrochemical impedance spectroscopy (EIS) shows that the film decreases the electrodes impedance with and without black platinum and the deposited thickness is a parameter to control due to the high influence in the impedance measurement results.

Original language	English
Pages (from-to)	2102-2104
Number of pages	3
Journal	Vacuum
Volume	86
Issue number	12
DOIs	https://doi.org/10.1016/j.vacuum.2012.06.002
Publication status	Published - 20 Jul 2012

Keywords

Hydrogel
Thickness
Thin film
iCVD

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10.1016/j.vacuum.2012.06.002

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abstract = "An impedance sensor has been covered with an ultrathin film of the hydrogel poly(hydroxyethyl methacrylate) (pHEMA) by initiated chemical vapor deposition (iCVD) and the influence of the film thickness has been evaluated. The deposited film swells rapidly and reversibly in solution allowing the passage of the analyte. Electrochemical impedance spectroscopy (EIS) shows that the film decreases the electrodes impedance with and without black platinum and the deposited thickness is a parameter to control due to the high influence in the impedance measurement results.",

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AU - Montero, Laura

AU - Gabriel, Gemma

AU - Guimerà, Anton

AU - Villa, Rosa

AU - Gleason, Karen K.

AU - Borrós, Salvador

PY - 2012/7/20

Y1 - 2012/7/20

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AB - An impedance sensor has been covered with an ultrathin film of the hydrogel poly(hydroxyethyl methacrylate) (pHEMA) by initiated chemical vapor deposition (iCVD) and the influence of the film thickness has been evaluated. The deposited film swells rapidly and reversibly in solution allowing the passage of the analyte. Electrochemical impedance spectroscopy (EIS) shows that the film decreases the electrodes impedance with and without black platinum and the deposited thickness is a parameter to control due to the high influence in the impedance measurement results.

KW - Hydrogel

KW - Thickness

KW - Thin film

KW - iCVD

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Increasing biosensor response through hydrogel thin film deposition: Influence of hydrogel thickness

Abstract

Keywords

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