University of Illinois
"Transient electronics" dissolve once they're not needed
We’ve certainly been hearing a lot lately about tiny electronic devices that can do things such as delivering medication after being implanted in the body, measuring structural stress upon being attached to a bridge, or monitoring pollution after being placed in the environment. In all of these cases, the device has to be retrieved once it’s served its purpose, or just left in place indefinitely. Now, however, an interdisciplinary team of researchers have demonstrated “transient electronics,” which dissolve into nothing after a pre-determined amount of time. Read More
Sutures have come along way from the days of silk and catgut, but now they’re poised to make their biggest change in 3,000 years. They’re getting smart. John Rogers, professor of materials science and engineering at the University of Illinois at Urbana-Champaign has invented a “smart” suture that contains ultrathin sensors that can detect when a wound is infected and may one day be able to actively promote healing as well. Read More
Using industry-standard manufacturing technology, researchers have integrated ultrathin and stretchable silicon-based electronics, sensors and actuators on an artificial skin that can be worn on the tip of your fingers. The result is an artificial finger cuff that could be used to produce the ultimate hi-tech surgeon's glove, capable of sensing the electrical properties of tissue, removing it locally, or even performing ultrasound imaging with a simple touch. Read More
In the quest to develop implantable electronics to monitor the human body from within, flexibility and stretchability have been major hurdles. We’ve seen numerous developments including stretchable LED arrays, an implantable device for measuring the heart’s electrical output, and an electrode array that melts onto the surface of the brain. Now researchers have developed technology that combines a porous polymer and liquid metal that allows electronics to bend and stretch to more than 200 percent their original size. Read More
Although winged micro air vehicles (MAVs) are pretty impressive in free flight, one of the skills that has proven difficult for them to master is the bird-like perched landing. Aerospace engineers from the University of Illinois at Urbana-Champaign, however, have now achieved it – they’ve developed an MAV that is capable of landing on an outstretched human hand. Read More
With malaria still responsible for millions of untimely deaths in more than 90 countries each year, the search for effective antimalarial drugs, vaccines and mosquito repellents continues to heat up. Recently, researchers at the University of Illinois (UI), led by chemistry professor Eric Oldfield, found that a chemically-altered form of a commonly prescribed osteoporosis drug can easily enter red blood cells and dispatch malaria parasites without harming the host (in this case, a mouse). That's potentially huge news for the countless thousands who continue to suffer from this recurrent, debilitating and all-too-often fatal disease. Read More
Putting 1 million tonnes of CO2 a mile under Illinois
A bold undertaking to store one million metric tonnes (1.1 million short tons) of carbon dioxide in a sandstone reservoir 1.3 miles (2.1 km) below Decatur, Illinois, is well under way. The project began last November, and has so far injected more than 75,000 tons of carbon dioxide, almost one tenth of the target. The University of Illinois, which is leading the Illinois Basin - Decatur Project (IBDP), hopes that the scheme will demonstrate the safety and effectiveness of carbon sequestration, as well as raise public awareness of the process's potential environmental benefits. Read More
Particle-free silver ink developed for printable electronics
There’s no doubt that we will soon be seeing a lot more in the way of low-cost electronic circuits that have been printed onto common, flexible materials such as plastic, paper or fabric. One of the key technological innovations making this possible is silver ink, which is used to print these circuits’ conductors. While such ink usually incorporates particles of silver suspended in a carrier liquid, a new type of ink created at the University of Illinois forgoes the particle approach, and is said to offer some distinct advantages as a result. Read More
A hard material is impregnated with microcapsules that burst when the material cracks, releasing a stored liquid that hardens on contact with the air, thus repairing the crack ... it’s a system that we’ve recently seen used in a number of applications, including self-healing concrete and polymers. Now, a research team from the University of Illinois is applying it to electronics. They have already created a system that automatically restores conductivity to a cracked circuit in just a fraction of a second. Read More
Experimental dressing directs the growth of blood vessels over wounds
In the not-too-distant future, wounds may be covered not just with regular bandages, but with special "microvascular stamps" that promote and direct the growth of new blood vessels. A team of scientists from the University of Illinois have already created such a dressing, which could ultimately have applications far beyond the healing of cuts. Read More