Next Article in Journal
Correction: Tang, K., et al., A Novel Fingerprint Sensing Technology Based on Electrostatic Imaging. Sensors 2018, 18, 3050
Previous Article in Journal
Erratum: Zhao, Y.; Zhang, N.; Si, G.; Li, X. Study on the Optimal Groove Shape and Glue Material for Fiber Bragg Grating Measuring Bolts. Sensors 2018, 18, 1799
Open AccessArticle

Electrophoretic Separation on an Origami Paper-Based Analytical Device Using a Portable Power Bank

Department of Modern Mechanical Engineering, Waseda University, 3-4-1 Ookubo, Shinjuku-ku, Tokyo 169-8555, Japan
Department of Micro-Nano Mechanical Science and Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8603, Japan
Author to whom correspondence should be addressed.
Deceased 14 October 2018.
Sensors 2019, 19(7), 1724;
Received: 11 March 2019 / Revised: 8 April 2019 / Accepted: 9 April 2019 / Published: 10 April 2019
(This article belongs to the Section Chemical Sensors)
The electrophoresis of ampholytes such as amino acids on a paper device is difficult because of the variation of pH distribution in time. On the basis of this observation, we propose a paper-based analytical device (PAD) with origami structure. By folding a filter paper, a low operation voltage of 5 V was achieved, where the power was supplied by a 5 V 1.5 A portable power bank through the USB type A receptacle. As a demonstration, we carried out the electrophoretic separation of pI markers (pI 5.5 and 8.7). The separation was achieved within 4 min before the pH distribution on the paper varied. Though the separation distance was small, it could be increased by expanding the origami structure. This result indicates that our proposed PAD is useful for electrophoretic separation on a paper device. View Full-Text
Keywords: paper-based analytical device; electrophoresis; origami paper-based analytical device; electrophoresis; origami
Show Figures

Graphical abstract

MDPI and ACS Style

Matsuda, Y.; Sakai, K.; Yamaguchi, H.; Niimi, T. Electrophoretic Separation on an Origami Paper-Based Analytical Device Using a Portable Power Bank. Sensors 2019, 19, 1724.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop