3D Printing Enables Efficient Manufacturing of Nanosensors: Researchers

Microelectromechanical devices (MEMS), which are made up of small electrical and mechanical components, are commonly found in smartphones, where they detect orientation, movement, sound, and other stimuli. Even the smallest versions of these devices called nanoelectromechanical devices (NEMS) employ sensors that are so perceptive that they can detect inputs at the molecular level, but they are expensive to produce.

This complex technology, however, can be manufactured at a lower cost using 3D printers, according to an article published by researchers from the Hebrew University of Jerusalem and the Department of Applied Science and Technology (DISAT) of the Politecnico di Torino in the peer review. . daily Communications from nature in October.

Using 3D printers makes it possible to produce multiple NEMS more quickly and efficiently.

“The NEMS that we have manufactured and characterized have mechanical performances in line with current silicon devices, but are obtained through a simpler, faster and more versatile process, thanks to which it is also possible to add new chemical-physical functionalities”, DISAT said. researcher Stefano Stassi.

View of the Givat Ram campus of the Hebrew University, November 7, 2011 (credit: MIRIAM ALSTER / FLASH90)

Low-mass resonators that allow NEMS to detect various stimuli can be printed using a process called two-photon polymerization, or TPP, which uses liquid ink made from metal salts to create tiny and complex ceramic components.

“Thanks to our approach to 3D printing, which is based on converting a soft hybrid structure into a rigid constituent material with a high quality factor and a low loss factor, we are able to outperform common devices that are manufactured with alternative techniques, “he added. Communications from nature read article.


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