3D Printed e-Tongue

Frontiers in Chemistry
Gabriel GaálAntonio Riul

Abstract

Nowadays, one of the biggest issues addressed to electronic sensor fabrication is the build-up of efficient electrodes as an alternative way to the expensive, complex and multistage processes required by traditional techniques. Printed electronics arises as an interesting alternative to fulfill this task due to the simplicity and speed to stamp electrodes on various surfaces. Within this context, the Fused Deposition Modeling 3D printing is an emerging, cost-effective and alternative technology to fabricate complex structures that potentiates several fields with more creative ideas and new materials for a rapid prototyping of devices. We show here the fabrication of interdigitated electrodes using a standard home-made CoreXY 3D printer using transparent and graphene-based PLA filaments. Macro 3D printed electrodes were easily assembled within 6 min with outstanding reproducibility. The electrodes were also functionalized with different nanostructured thin films via dip-coating Layer-by-Layer technique to develop a 3D printed e-tongue setup. As a proof of concept, the printed e-tongue was applied to soil analysis. A control soil sample was enriched with several macro-nutrients to the plants (N, P, K, S, Mg, and Ca) and the discr...Continue Reading

References

Nov 27, 2004·Electrophoresis·Wendell K Tomazelli ColtroEmanuel Carrilho
Jun 7, 2008·Analytical Chemistry·Daniel Citterio, Koji Suzuki
Jul 29, 2010·Electrophoresis·Wendell Karlos Tomazelli ColtroEmanuel Carrilho
Aug 24, 2010·The Analyst·Antonio RiulOsvaldo N Oliveira
Nov 23, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Hiroshi NakashimaGordon G Wallace
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Mar 4, 2017·Scientific Reports·Christopher W FosterCraig E Banks
Jul 29, 2017·ACS Sensors·Flavio M ShimizuRenato S Lima

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Citations

Nov 27, 2019·Sensors·Dmitry KirsanovAndrey Legin
Jan 18, 2019·Accounts of Chemical Research·Tie LiTing Zhang

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Methods Mentioned

BETA
electrophoresis
chemical treatment
PCA

Software Mentioned

Slic3r
XY
CoreXY
VR
Autodesk Inventor
RepRap open
Core

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