Tattoo-Paper Transfer as a Versatile Platform for All-Printed Organic Edible Electronics

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 untreated commercial tattoo-paper, and their subsequent transfer and operation on edible substrates with a complex non-planar geometry.