2019-Sustainable Industrial Processing Summit
SIPS2019 Volume 11: New and Advanced Materials, Technologies, and Manufacturing
| Editors: | F. Kongoli, F. Marquis, N. Chikhradze, T. Prikhna |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2019 |
| Pages: | 174 pages |
| ISBN: | 978-1-989820-10-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Flexible Sensors via Laser Printing
Mihaela Filipescu1; ALEXANDRA PALLA-PAPAVLU2; Anca Bonciu2; MARIA DINESCU1;1NATIONAL INSTITUTE FOR LASERS, PLASMA AND RADIATION PHYSICS, Magurele, Romania; 2NATIONAL INSTITUTE FOR LASERS, PLASMA AND RADIATION PHYSICS, MAGURELE, Romania;
Type of Paper: Regular
Id Paper: 214
Topic: 48
Abstract:
Recent progress in sensor and biosensor research and technology has lead to their integration in products designed for healthcare monitoring. This is due to their important properties such as reduced sizes, cost effective, lightweight, and high sensitivity. Recent estimates, however, show that the biosensor and electrochemical sensor market are dominated by glucose sensors. Therefore, there is a great need to expand the application of sensors and biosensors beyond glucose. Furthermore, taking into account the rapid development of society’s needs, concepts such as intelligent clothing and wearable devices receive increasing attention. In addition, new features such as portable, flexible, and real-time monitoring are becoming more and more important.
In the last years, recent approaches are focused on wearable electrochemical sensors which can detect target analytes in saliva, tears, sweat, and interstitial fluid.
The aim of this work is the development of an original flexible and wearable biosensor based on nanocomposite materials (polymers and graphene) fabricated by laser-induced forward transfer (LIFT). In particular, we focus on the synthesis of donor materials and the optimization of the LIFT process for obtaining reproducible pixels which are used as electrodes for the electrochemical biosensors. We printed different polymer:graphene nanocomposites onto flexible substrates (coated with an insulating layer, for ex. Parylene C, which prevents electrical contact with the body fluids). The biosensors fabricated by LIFT are used for the detection of heavy metals in human body fluids. Promising results, i.e. high sensitivity and detection limits, were obtained. This proves that LIFT may be used as an alternative method for printing nanoscale materials aimed at the fabrication of wearable sensors.
Keywords:
Composites; Multifunctional materials; Precision/Ultraprecision manufacturing;References:
[1] M. Benetti, D. Cannata, E. Verona, A. Palla-Papavlu, V. Dinca, T. Lippert, M. Dinescu, F. Di Pietrantonio, Highly selective surface acoustic wave e-nose implemented by laser direct writing, Sensors and Actuators B: Chemical (2019)[2] A. Palla Papavlu, T. Mattle, U. Lehmann, A. Hintennach, A. Griesel, A. Wokaun, T. Lippert, Scientific Reports 6, 25144 (2016)
[3] A. Palla Papavlu, M. Filipescu, S. Vizireanu, L. Vogt, S. Antohe, M. Dinescu, A. Wokaun, T. Lippert, Applied Surface Science 374, 312-317 (2016)