Skip to Content

Printed Stickers Designed to Monitor Food Temperatures

Effort aims to merge technology from four companies to create the first sticker with all-printed electronics.
January 30, 2012

A plastic temperature-recording sticker that could provide detailed histories of crates of food or bottles of vaccine would be the first to use all-printed electronics components—including memory, logic, and even the battery. The cost per sticker could be only 30 cents or less.

Thin Film Electronics, based in Oslo, Norway, aims to marry the company’s printed memory with printed transistors from PARC in Palo Alto, California; a printed temperature sensor from PST Sensors, a spin-off from the University of Cape Town in South Africa; and a printed battery from Imprint Energy, a spin-off from the University of California, Berkeley. The first prototype using all the components is expected later this year.

“There are lots of efforts in academia and research where they play with printing electronics,” says Janos Veres, who manages the printed electronics team at PARC. What’s new is “somebody trying to do it commercially and figuring out what are the first things you can make with 10 or 20 bits of memory and a simple battery,” he says. “We need a library of different building blocks that are made by the same standard manufacturing process to get this ecosystem working.”

The envisioned product will be designed to work either with a printed display or a contact readout, and include a battery that can last six to nine months, allowing the sticker to make a continuous record of temperature. Existing temperature sensor stickers that cost just pennies offer a crude measurement—using a chemical reaction to change color when they hit certain thresholds, alerting to possible spoilage.  

Flexible logic: These printed transistors will be packaged with printed memory, sensor, and battery components for a cheap commercial temperature-monitoring system.

At the higher end, systems that can record exact temperatures over long periods of time, and store this data for either display or retrieval, cost $15 to $25 or more, and are limited to high-value items or pallet-sized shipments.

Jennifer Ernst, a Thin Film Electronics vice president, says the mix of materials, substrates, and printing technologies is still in development. “To the best of my knowledge, it’s the first time a set of companies have announced a plan to put a fully integrated system together,” she says. If it all works out and the performance is reliable, “we can achieve cost targets that silicon systems just can’t touch,” she adds.

Keep Reading

Most Popular

Here’s how a Twitter engineer says it will break in the coming weeks

One insider says the company’s current staffing isn’t able to sustain the platform.

Technology that lets us “speak” to our dead relatives has arrived. Are we ready?

Digital clones of the people we love could forever change how we grieve.

How to befriend a crow

I watched a bunch of crows on TikTok and now I'm trying to connect with some local birds.

Starlink signals can be reverse-engineered to work like GPS—whether SpaceX likes it or not

Elon said no thanks to using his mega-constellation for navigation. Researchers went ahead anyway.

Stay connected

Illustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.