Category Technology/Electronics

Electroluminescence from vertically stacked GaN–Al2O3–MoS2–Al2O3-graphene heterostructures.

1st demo of electroluminescence from multilayer molybdenum disulfide, or MoS2, a discovery that could lead to a new class of materials for making LEDs. In its single-layer form, Mos2 is optically active, meaning that it emits light when electric current is run through it or when it is shot with a nondestructive laser. Multilayer molybdenum disulfide, by contrast, is easier and less expensive to produce, but it is not normally luminescent. In the new study, Duan and Dehui, created the 1st multilayer device that shows strong luminescence when electrical current is passed through it.

“It was rather surprising for us to discover that similar vertical devices made of multilayer MoS2 somehow showed ...

Weyl fermions could give rise to faster and more efficient electronics because of their unusual ability to behave as matter and antimatter inside a crystal. They could allow for a nearly free and efficient flow of electricity in electronics, and thus greater power, especially for computers.

Proposed by mathematician/ physicist Hermann Weyl in 1929, Weyl fermions have been long sought by scientists because they have been regarded as possible building blocks of other subatomic particles, and are even more basic than electrons (when electrons are moving inside a crystal). Their basic nature means that Weyl fermions could provide a much more stable and efficient transport of particles than electrons, which are the principle particle behind modern electronics...

Dr. Folmer is a research investigator with the National Center for Rehabilitative Auditory Research at the VA Portland Health Care System and associate professor of Otolarynology/Head and Neck Surgery in the OHSU School of Medicine.
Credit: National Center for Rehabilitative Auditory Research at the VA Portland Health Care System/OHSU

This depression Rx tool holds tremendous promise for patients with debilitating condition. In the largest US clinical trial of its kind researchers found that transcranial magnetic stimulation significantly improved tinnitus symptoms for more than half of study participants.

“For some study participants, this was the first time in years that they experienced any relief in symptoms...

Biochemical sensing b/n organisms could have far reaching implications in ecology, biology, and robotics. A Virginia Tech scientist used a mathematical model to demonstrate that bacteria can control the behavior of an inanimate device like a robot. “Basically we were trying to find out from the mathematical model if we could build a living microbiome on a nonliving host and control the host through the microbiome,” said Ruder, an assistant professor of biological systems engineering in both the College of Agriculture and Life sciences and the College of Engineering.

“We found that robots may indeed be able to have a working brain,” he said. For future experiments, Ruder is building real-world robots that will have the ability to read bacterial gene expression levels in E...