An international collaboration has made significant progress in modelling how electric currents affect the magnetization in some current-switched magnetic devices. While a number of such devices hold promise as low energy electronics, progress on some of the latest ideas has been impeded because different and contradictory models have been proposed to understand how they work and how to best optimize their performance.
The first 'unambiguous demonstration' of the atomic-scale sound waves known as phonons crossing over from particle-like to wave-like behavior in superlattices opens the door to improved thermoelectrics and possibly even phonon lasers.
Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost no resistance even at room temperature - a property known as ballistic transport.
Potential side effects of many of today's therapeutic drugs can be downright frightening - just listen carefully to a drug commercial on TV. These effects often occur when a drug is active throughout the body, not just where and when it is needed. But scientists are reporting progress on a new tailored approach to deliver medicine in a much more targeted way.
By sandwiching a biological molecule between sheets of graphene, researchers at the University of Illinois at Chicago have obtained atomic-level images of the molecule in its natural watery environment.
New research findings open the door to smarter sensors by integrating vanadium dioxide onto a silicon chip and using lasers to make the material magnetic. The advance paves the way for multifunctional spintronic smart sensors for use in military applications and next-generation spintronic devices.
A team of researchers from UCLA has developed a smartphone attachment and application to test water for the presence of mercury, a toxic heavy metal. The scientists created an integrated opto-mechanical attachment to the built-in camera module of a smart-phone to digitally quantify mercury concentration using a plasmonic gold nanoparticle and aptamer based colorimetric transmission assay that is implemented in disposable test tubes.
Our cells produce thousands of proteins but more than one-third of these proteins can fulfill their function only after migrating to the outside of the cell. While it is known that protein migration occurs with the help of various 'nanomotors' that push proteins out of the cell, little is known about their precise mechanical functioning. New research reveals the inner workings of one such nanomotor, called SecA, with new clarity.
Look out, super glue and paint thinner. Thanks to new dynamic materials developed at the University of Illinois, removable paint and self-healing plastics soon could be household products. A slight tweak in chemistry to elastic materials made of polyurea, one of the most widely used classes of polymers in consumer goods, yields materials that bond back together on a molecular level without the need for other chemicals or adhesives.