Customizing an all-in-one polydimethylsiloxane-based electroanalytical platform using a 3D-pen templated channel

Abstract

The combination of 3D-printing technology and microfluidics has garnered widespread interest for creating new designs and has opened a large window for creativity. However, some laboratories do not have the necessary technology to explore this potential advantage. In this paper, we demonstrate how to explore target technologies to fabricate a single version of a polydimethylsiloxane (PDMS)-based electroanalytical platform using a low-cost protocol and disposable materials. This protocol is cost-effective in terms of equipment and materials, allowing for the creation of a circular channel, a T-junction system, and two designs of electrochemical detectors customized onto a single platform. The interesting new device has some important characteristics, such as fabrication following green and sustainable protocols. Additionally, it can address the limitations associated with flow-based analysis, for which the classical three-electrode configuration is inadequate. It has also demonstrated the feasibility of using the device in analytical applications for the determination of salicylic acid in commercial dermocosmetic samples, including aqueous samples.