Tattoo-Paper Transfer as a Versatile Platform for All-Printed Organic Edible Electronics
Giorgio E. Bonacchini (1, 2), Caterina Bossio (1), Francesco Greco, (3, 4), Virgilio Mattoli (3), Yun-Hi Kim (5), Guglielmo Lanzani (1, 2),, Mario Caironi (1) ((1) Center for Nano Science, Technology at PoliMi, Istituto Italiano di Tecnologia

TL;DR
This paper introduces a versatile tattoo-paper platform for creating all-printed organic electronics that can be transferred onto edible substrates, enabling applications in ingestible devices and food tracking.
Contribution
It demonstrates the fabrication and transfer of all-printed OFETs onto edible, non-planar surfaces using tattoo-paper, advancing edible electronics technology.
Findings
Successful fabrication of all-printed OFETs on tattoo-paper
Transfer of electronics onto complex edible substrates
Potential applications in biomedical and food industries
Abstract
The use of natural or bioinspired materials to develop edible electronic devices is a potentially disruptive technology that can boost point-of-care testing. The technology exploits devices which can be safely ingested, along with pills or even food, and operated from within the gastrointestinal tract. Ingestible electronics could potentially target a significant number of biomedical applications, both as therapeutic and diagnostic tool, and this technology may also impact the food industry, by providing ingestible or food-compatible electronic tags that can smart track goods and monitor their quality along the distribution chain. We hereby propose temporary tattoo-paper as a simple and versatile platform for the integration of electronics onto food and pharmaceutical capsules. In particular, we demonstrate the fabrication of all-printed Organic Field-Effect Transistors (OFETs) on…
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