Research Bits: Dec. 20


Patch tracks blood in deep tissue A skin-worn photoacoustic patch developed by a research team at the University of California San Diego is equipped with arrays of laser diodes and piezoelectric transducers to detect biomolecules in deep tissues, which usually would require a magnetic resonance imaging (MRI) and X-ray-computed tomography. The patch may help doctors tract hemoglobin in real tim... » read more

Week In Review: Auto, Security, Pervasive Computing


Automotive, mobility The head of Tesla’s Autopilot division — Andrej Karpathy — resigned from the company after Tesla laid off 200 people in its Autopilot division and the U.S. National Highway Transportation Safety Administration broadened its safety investigation of Tesla’s Autopilot. The NHTSA last month broadened its August 2021 investigation, which was looking at why Tesla cars on... » read more

Power/Performance Bits: Nov. 8


Molecular memristor Researchers from National University of Singapore, Indian Association for the Cultivation of Science, University of Limerick, Texas A&M University, and Hewlett Packard Enterprise discovered a molecular memristor for brain-inspired computing. The molecule uses natural asymmetry in its metal-organic bonds to switch between different states, which allows it to perform u... » read more

Power/Performance Bits: Oct. 5


Modeling resistive-switching memory Researchers from Singapore University of Technology and Design (SUTD) and Chang Gung University developed a new toolkit for modeling current in resistive-switching memory devices. The team said that traditional physical-based models need to consider complex behaviors to model current in resistive memory, and there's a risk of permanent device damage due t... » read more

Power/Performance Bits: Sept. 21


Catching switches in action Researchers from SLAC National Accelerator Laboratory, Stanford University, Hewlett Packard Labs, Penn State University, and Purdue University observed atoms moving inside an electronic switch as it turns on and off, revealing a state they suspect could lead to faster, more energy-efficient devices. "This research is a breakthrough in ultrafast technology and sci... » read more

Power/Performance Bits: June 29


Persistent photoconductivity Researchers at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL), University of Wisconsin Madison, and the University of Toledo, discovered a unique effect in metal-halide perovskite semiconductors that could be used in neuromorphic computing systems. Perovskites are currently being investigated as highly efficient solar cells. In fact,... » read more

Power/Performance Bits: April 27


Energy-harvesting shirt Engineers at the University of California San Diego developed a 'wearable microgrid' that harvests and stores energy from the human body to power small electronics. The microgrid consists of three main parts: sweat-powered biofuel cells, motion-powered triboelectric generators, and energy-storing supercapacitors. All parts are flexible, washable and can be screen pri... » read more

Power/Performance Bits: April 20


Multiplexing twisted light Researchers from University of California San Diego and University of California Berkeley found a way to multiplex light by using discrete twisting laser beams from antennas made up of concentric rings. "It's the first time that lasers producing twisted light have been directly multiplexed," said Boubacar Kanté, an Associate Professor at UC Berkeley's Department ... » read more

Power/Performance Bits: Feb. 2


MXene antennas Researchers at Drexel University and Villanova University developed spray-on antennas made of the 2D materials MXene that is flexible and light while maintaining good signal. "This combination of communications performance with extreme thinness, flexibility and durability sets a new standard for antenna technology," said Yury Gogotsi, professor of Materials Science and Engine... » read more

Power/Performance Bits: Sept. 22


Drawing sensors on skin Researchers from the University of Houston and University of Chicago created an ink pen that can draw multifunctional sensors and circuits directly on skin. These "drawn-on-skin electronics" aim to provide more precise health data, free of the artifacts that are associated with wearable devices and flexible electronic patches. Caused when the sensor doesn't move prec... » read more

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