New 3D printers print electronic products on the skin for the first time

3D electronic components printed on the hand.

According to a report by the Physicist Network on the 25th, in a groundbreaking new study, American researchers used custom low-cost 3D printers to print electronic products for the first time. With the new technology, soldiers on the battlefield can print temporary sensors on the body to detect chemical or biological agents, or print solar cells to charge electronic devices, and they can be peeled off with a tweezers or rinsed with water.

The research report was published in the Advanced Materials magazine published on the 26th. Benjamin Matthew, an associate professor of mechanical engineering, one of the main authors of the paper, said: "We are very excited about the potential of this new 3D printing technology. The new technology uses portable printers that cost less than $400. Imagine that soldiers can put this The printer takes it out of the backpack and prints out the required chemical sensors or other electronic products directly on the skin."

One of the key innovations of the new 3D printing technology is that the printer can accommodate small movements of the body during printing. Place temporary marks on the skin and scan the skin, and the printer can use computer vision to make real-time adjustments. The main author of the study, Michael McAlpine, explained: â€œItâ€™s hard to keep still when using the printer on the skin. The new printer can use the marker to track the hand and adjust it in real time to fit the movement and contour of the hand, thus not changing the circuit. shape."

Another unique feature of the new 3D printing technology is that it uses a special ink made of silver, which is different from 3D printing inks that need to be cured at a temperature of 100 degrees Celsius. It cures and conducts at room temperature.

In addition to printing electronic products, the new 3D printing technology can also be used in other fields, including printing cells to help patients with skin diseases. The McAlpine team worked with world-class dermatologists to successfully print biological cells on the skin wounds of experimental mice, a technology that may bring new treatments to heal wounds, or print patches directly to treat skin diseases. .

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