System Bits: April 12


Highly aligned, wafer-scale films Rice University researchers, with support from Los Alamos National Laboratory, have created inch-wide, flexible, wafer-scale films of highly aligned and closely packed carbon nanotubes with the help of a simple filtration process. The chirality-enriched single-walled carbon nanotubes assemble themselves by the millions into long rows that are aligned better... » read more

Power/Performance Bits: March 29


Photonic-phononic circuit Researchers at the National Institute of Standards and Technology (NIST) developed a piezo-optomechanical circuit that converts signals among optical, acoustic and radio waves. At the heart of the piezoelectric optomechanical circuit is an optomechanical cavity, which consists of a suspended nanoscale beam. Within the beam are a series of holes that act like a ha... » read more

System Bits: March 22


How nanocrystal structures self assemble Researchers at MIT and the Cornell High Energy Synchrotron Source (CHESS) have discovered some of the secrets to a long-hidden magic trick behind the self-assembly of nanocrystal structures, the understanding of which could be used to create more vivid display screens and optical sensory devices. The transformation of simple colloidal particles — b... » read more

System Bits: Feb. 2


Wearable sensors reveal health data from sweat In the name of science, UC Berkeley researchers want you to break out into a sweat — so it can be analyzed, of course. Specifically, the researchers have created a flexible sensor system that can measure metabolites and electrolytes in sweat, calibrate the data based upon skin temperature and sync the results in real time to a smartphone. The... » read more

System Bits: Dec. 23


Building MEMS at one-hundredth the cost The microelectromechanical systems (MEMS) market was $12 billion business in 2014, dominated by a handful of devices, such as accelerometers that reorient the screens of most smartphones. However, researchers at MIT pointed out that potentially useful MEMS have languished in development because they don’t have markets large enough to justify the initia... » read more

Power/Performance Bits: Nov. 3


Lithium-air batteries gain ground Scientists at the University of Cambridge have developed a working laboratory demonstration of a lithium-oxygen battery which has very high energy density, is more than 90% efficient, and can be recharged more than 2000 times. Their demonstrator relies on a highly porous, 'fluffy' carbon electrode made from graphene (comprising one-atom-thick sheets of ca... » read more

System Bits: Oct. 20


Automating big-data analysis Until now, big-data analysis consisted of searching for buried patterns that had some kind of predictive power but picking which “features” of the data to analyze usually required some human intuition. Now, however, MIT researchers are aiming to take the human element out of big-data analysis with a new system that they say not only searches for patterns but... » read more

System Bits: Aug. 18


Optical computing for big data Given the potential for optical electronics to be applied to big data processing tasks, alumni of the University of Cambridge, including from the Department of Engineering, have gone on to found Optalysys, a company with the goal of making computer processors that use light instead of electricity. The Cambridge spinout’s latest achievement is a functioning p... » read more

System Bits: July 21


White graphene can take the heat According to researchers at Rice University, 3D boron nitride structures excel at thermal management for electronics. Rice researchers Rouzbeh Shahsavari and Navid Sakhavand have completed the first theoretical analysis of how 3D boron nitride might be used as a tunable material to control heat flow in such devices. In its 2D form, hexagonal boron nitride... » read more

System Bits: April 14


Antennas on a chip In what is being called the missing piece of the puzzle of electromagnetic theory, a team of researchers at the University of Cambridge have figured out one of the mysteries of electromagnetism, that they believe could allow the design of antennas small enough to be integrated into a chip. These ultra-small antennas – the so-called ‘last frontier’ of semiconductor desi... » read more

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