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Proceedings 2017, 1(4), 495; doi:10.3390/proceedings1040495

Fabricating a Highly Sensitive QCM Sensor Using AAO Nanoholes and Its Application for Biosensing

Graduate School of Engineering Science, Kansai University, Osaka 564-8680, Japan
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
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Author to whom correspondence should be addressed.
Published: 9 August 2017
(This article belongs to the Proceedings of Eurosensors 2017)
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Abstract

A nanostructure composed of Anodic Aluminum Oxide (AAO) was obtained on an electrode of a quartz crystal microbalance (QCM) chip by anodizing Al thin film in an oxalic acid solution. The effective surface area was expanded by these nanostructures. Several morphologies were observed under various anodic conditions by using scanning electron microscopy (SEM). We demonstrated that a QCM chip with the AAO was effective in biosensing because of its large surface area. The frequency shift corresponding to an antigen-antibody reaction improved on the nanostructured electrode compared with a flat surface electrode.
Keywords: biosensing; QCM; anodic aluminum oxide; nanostructure biosensing; QCM; anodic aluminum oxide; nanostructure
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Asai, N.; Shimizu, T.; Shingubara, S.; Ito, T. Fabricating a Highly Sensitive QCM Sensor Using AAO Nanoholes and Its Application for Biosensing. Proceedings 2017, 1, 495.

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