Recoverable electrowetting-on-dielectric device in chemiluminescence enzymatic detector
Journal
Japanese Journal of Applied Physics
Journal Volume
53
Journal Issue
6
Date Issued
2014
Author(s)
Abstract
<p style="text-align:justify;"> Hydrophobic failure is a major obstacle faced in the application of electrowetting-on-dielectric (EWOD) for bio-detections. In this paper we study the failure mechanism of EWOD-based chemiluminescence detectors and propose a recovery method. The X-ray photoelectron spectroscopy (XPS) analysis reveals that the C–F bond breakage and C–O bond formation after the chemiluminescence reaction makes the Teflon surface hydrophilic. We design a recoverable EWOD device with an integrated heater. An experimental analysis confirms the recovery of the hydrophobic surface by heating the surface over 900 mW for 5 min. </p>
SDGs
Type
journal article