Скачать или смотреть A screen using magnetic pixels stores and displays encrypted images without electronics

A flexible screen inspired, in part, by squid can store and display encrypted images like a computer—using magnetic fields rather than electronics. The device is described in Advanced Materials and was made in the labs of Joerg Lahann, the Wolfgang Pauli Collegiate Professor of Chemical Engineering, and Abdon Pena-Francesch, an assistant professor of materials science and engineering and co-corresponding author. The researchers' screen could be used wherever light and power sources are cumbersome or undesirable, including clothing, stickers, ID badges, barcodes and e-book readers.

The screen displays images by programming magnetic pixels to flip to either orange or white faces in a specific magnetic field direction. The images can be programmed to be publicly read by any standard magnet or privately read by a specific magnetic grid, which acts as a key. The key reprograms specific pixels of the screen to temporarily have inverted flipping behavior and display a new image.

This research was published in Advanced Materials on September 16, 2024 and is titled, "Janus Swarm Metamaterials for Information Display, Memory, and Encryption."
https://doi.org/10.1002/adma.202406149

Read more here:
https://news.engin.umich.edu/2024/09/...

Learn More:
BioInspired Materials Lab: https://www.apenafrancesch.com/

Lahann Lab: https://www.lahannlab.com/

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