Optimization of a Handwriting Method by an Automated Ink Pen for Cost-Effective and Sustainable Sensors

Abstract

In this work, we present a do-it-yourself (DIY) approach for the environmental-friendly fabrication of printed electronic devices and sensors. The setup consists only of an automated handwriting robot and pens filled with silver conductive inks. Here, we thoroughly studied the fabrication technique and different optimized parameters. The best-achieved results were 300 mΩ/sq as sheet resistance with a printing resolution of 200 µm. The optimized parameters were used to manufacture fully functional electronics devices: a capacitive sensor and a RFID tag, essential for the remote reading of the measurements. This technique for printed electronics represents an alternative for fast-prototyping and ultra-low-cost fabrication because of both the cheap equipment required and the minimal waste of materials, which is especially interesting for the development of cost-effective sensors.

Pen direct writing of SERRS-based lateral flow assays for detection of penicillin G in milk

“…[4][5][6][7] This can be implemented by simple handwriting of individual assays, but can extend to high throughput fabrication by incorporation of writing pens into automated, customised pen-plotter systems. [8][9][10] Direct writing methods benet from the use of readily available materials and easy fabrication techniques and can be integrated with micro-uidics (paper cut, permanent markers, wax pens/printers) to design and deliver low-cost, multiplexed, disposable, scalable and portable assays. [11][12][13] These characteristics are particularly attractive to implement POC tests in remote regions and resource-limited environments.…”

Managing the Intersection of Artificial Intelligence, Digital Typing, and Handwriting for Sustainable Quality Education Enhancement

“…The use of handwriting is fading. Handwriting is increasingly losing its meaning as a means of education in society (Loghin et al, 2021). On the other side, learning to write is a challenging endeavor that calls for a convergence of linguistic, physical, and mental capabilities.…”