Tiny electronic sensors and devices that can be implanted in the body and then dissolve almost without a trace are getting closer to reality.
Scientists have tested several biodegradable materials, including DNA, proteins and metals, for making transient electronics. Now one team, reporting in the journal ACS Applied Materials & Interfaces, has taken another step toward this goal. They created a dissolvable device component out of egg proteins, magnesium and tungsten.
Transient electronics have many potential applications from localized drug delivery to pollution monitoring. To explore these possibilities, scientists have been working with an array of natural materials to test how well they perform in electronic devices and whether they might cause side effects or damage when implanted. Unlike conventional electronics that contribute to a growing amount of harmful waste, dissolvable devices are designed to be compatible with the environment. Jikui Luo, Xiaozhi Wang and colleagues wanted to build on this work and develop a transient memory resistor with dissolvable components. This electronic component, also called a memristor, is a new type of resistor that regulates the flow of electric current and also can “remember” charges.
The researchers rapidly spun diluted egg albumin, the white part of an egg, on a silicon wafer to turn it into an ultra-thin film. Then they incorporated electrodes made out of magnesium and tungsten. Testing showed that the device’s performance matched that of non-degradable memristors. Under dry conditions in the lab, the components worked reliably for more than three months. In water, the electrodes and albumin dissolved in two to 10 hours in the lab. The rest of the chip took about three days to break down, leaving minimal residues behind.
The Latest on: Dissolvable electronics
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The Latest on: Dissolvable electronics
- Toward dissolvable electronics for implants and sensors on April 27, 2019 at 5:54 am
They created a dissolvable device component out of egg proteins, magnesium and tungsten. Transient electronics have many potential applications from localized drug delivery to pollution monitoring. To ... […]
- Bioelectronics that vanish in the body on December 13, 2018 at 4:00 pm
“There is no doubt there is a potential clinical application here,” Homer-Vanniasinkam says. However, she notes that before dissolvable electronics make their way into people, researchers will need to ... […]
- Optomec Introduces New Hybrid 3D Printing System, Used By Researchers to Make Dissolvable Magnesium Medical Implants on September 11, 2018 at 12:41 pm
New Mexico-based Optomec is well-known for both its aerosol jet technology, which is used to 33D print electronics, and its other patented ... is using one of its new LENS Hybrid CA Systems to create ... […]
- Optomec LENS Hybrid System Used to Manufacture Dissolvable Metal Components for Medical Applications on September 11, 2018 at 5:23 am
“Our research is focused on advancing the performance and functionality of dissolvable devices ... Optomec patented Aerosol Jet Systems for 3D printed electronics and LENS Systems for3D printed metals ... […]
- New Developments in Dissolvable Electronics Present New Horizons for Medical Devices on October 4, 2017 at 10:13 am
The market of dissolvable electronics may not sound very familiar to many and, honestly, that is because the market hasn’t been around for very long. The avenues for dissolving electronics aren’t very ... […]
- Saudi Arabia prohibits imports of non-dissolvable plastic products on July 9, 2017 at 11:51 pm
Jeddah - Saudi Arabia on Sunday started barring the entry of non-dissolvable plastic products ... such as shopping bags and electronics packaging. Products used medically and in food manufacturing ... […]
- Imports of non-dissolvable plastic products prohibited; soon to be banned from use on July 9, 2017 at 8:00 pm
JEDDAH: Saudi Arabia on Sunday started barring the entry of non-dissolvable plastic products ... such as shopping bags and electronics packaging. Products used medically and in food manufacturing will ... […]
- Decomposable electronics: Stanford develops semiconductive polymer that disintegrates in mildly acidic conditions on May 5, 2017 at 7:54 pm
dissolvable electronics by encapsulating a conventional circuit in ultra-thin silicon and silk proteins. Using soluble conductors like magnesium and magnesium oxide, the researchers printed soluble ... […]
- Remote destruction capability of high performance silicon electronics on March 28, 2017 at 5:00 pm
Getting pretty close to this Hollywood scenario, minus the smoke, scientists now have demonstrated remote destruction capability of high performance ... transient electronics. One method is submerging ... […]
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