Organic Edible Electronics for Point-of-Care Testing

  • Author: Charlotte Koschnik
  • Published: 06 March 2018
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: Advanced Materials/Wiley-VCH
thumbnail image: Organic Edible Electronics for Point-of-Care Testing

Point-of-care testing is medical diagnostic assaying at or near the place of patient care, which permits real-time diagnostics for rapid and more efficient clinical management decisions. Edible electronic devices which can be safely ingested and operate from within the gastrointestinal tract could boost point-of-care testing. So far, however, ingestible electronics based on inorganic technologies are often bulky and require cumbersome and costly fabrication processes.

Guglielmo Lanzani, Politecnico di Milano and Istituto Italiano di Tecnologia, both Milano, Italy, Mario Caironi, Istituto Italiano di Tecnologia, and colleagues have developed organic field-effect transistors (OFETs) that can be transferred onto edible substrates such as pills or food. The researchers used temporary tattoos consisting of ethylcellulose (EC) layers, which were attached to a paper sheet with starch. Upon exposure to water, the starch dissolved and the EC layers detached from the paper sheet.

The team inkjet-printed both n- and p-type polymer semiconductors, e.g. poly(3-hexylthiophene), onto the temporary tattoo paper to produce OFET electrodes. After lamination with an additional EC layer, the OFETs could be transferred onto hard-gelatine capsules to form an organic edible electronic device (pictured).


Article Views: 1993

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from, please contact us first for permission. more

CONNECT: on Facebook on Twitter on YouTube on LinkedIn Sign up for our free newsletter

Magazine of Chemistry Europe (16 European Chemical Societies)published by Wiley-VCH