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Chemists and physicists at the University of California, Berkeley, have created a metallic wire made entirely of carbon, setting the stage for a ramp-up in research to build carbon-based transistors and, ultimately, computers. The new carbon-based metal is a graphene nanoribbon – a narrow, one-dimensional strip of atom-thick graphene – that conducts electrons between semiconducting nanoribbons in all-carbon transistors.
Chemists and physicists at the University of California, Berkeley, have created a metallic wire made entirely of carbon, setting the stage for a ramp-up in research to build carbon-based transistors and, ultimately, computers. The new carbon-based metal is a graphene nanoribbon – a narrow, one-dimensional strip of atom-thick graphene – that conducts electrons between semiconducting nanoribbons in all-carbon transistors.
Scientists from Texas A&M University, Hewlett Packard Labs, and Stanford University have described a new nanodevice that acts almost identically to a brain cell. They have shown that these synthetic brain cells can be joined together to form intricate networks that can then solve problems in a brain-like manner. Also, the researchers have demonstrated proof of concept that their brain-inspired system can identify possible mutations in a virus, which is highly relevant for ensuring the efficacy of vaccines and medications for strains exhibiting genetic diversity.
Scientists from Texas A&M University, Hewlett Packard Labs, and Stanford University have described a new nanodevice that acts almost identically to a brain cell. They have shown that these synthetic brain cells can be joined together to form intricate networks that can then solve problems in a brain-like manner. Also, the researchers have demonstrated proof of concept that their brain-inspired system can identify possible mutations in a virus, which is highly relevant for ensuring the efficacy of vaccines and medications for strains exhibiting genetic diversity.
Researchers at the National Institute of Standards and Technology have developed a new method of 3D-printing gels and other soft materials that has the potential to create complex structures with nanometer-scale precision. So far, the method enabled the researchers to create gels with structures as small as 100 nanometers. Because many gels are compatible with living cells, the new method could jump-start the production of soft tiny medical devices, such as drug-delivery systems or flexible electrodes.
Researchers at the National Institute of Standards and Technology have developed a new method of 3D-printing gels and other soft materials that has the potential to create complex structures with nanometer-scale precision. So far, the method enabled the researchers to create gels with structures as small as 100 nanometers. Because many gels are compatible with living cells, the new method could jump-start the production of soft tiny medical devices, such as drug-delivery systems or flexible electrodes.
Researchers at the University of California, Los Angeles have created thermoelectric coolers that are only 100 nanometers thick. These coolers are made by sandwiching two different semiconductors between metalized plates. When heat is applied, one side becomes hot and the other remains cool; that temperature difference can be used to generate electricity. But that process can also be run in reverse: When an electrical current is applied to the device, one side becomes hot and the other cold, enabling it to serve as a cooler or refrigerator.
Researchers at the University of California, Los Angeles have created thermoelectric coolers that are only 100 nanometers thick. These coolers are made by sandwiching two different semiconductors between metalized plates. When heat is applied, one side becomes hot and the other remains cool; that temperature difference can be used to generate electricity. But that process can also be run in reverse: When an electrical current is applied to the device, one side becomes hot and the other cold, enabling it to serve as a cooler or refrigerator.
Scientists at the U.S. Department of Energy’s Oak Ridge National Laboratory have used new techniques to create a composite that increases the electrical current capacity of copper wires, providing a new material that can be scaled for use in ultra-efficient, power-dense electric vehicle traction motors. The researchers deposited and aligned carbon nanotubes on flat copper substrates, resulting in a metal-matrix composite material with better current handling capacity and mechanical properties than copper alone. The research is aimed at reducing barriers to wider electric vehicle adoption.
Scientists at the U.S. Department of Energy’s Oak Ridge National Laboratory have used new techniques to create a composite that increases the electrical current capacity of copper wires, providing a new material that can be scaled for use in ultra-efficient, power-dense electric vehicle traction motors. The researchers deposited and aligned carbon nanotubes on flat copper substrates, resulting in a metal-matrix composite material with better current handling capacity and mechanical properties than copper alone. The research is aimed at reducing barriers to wider electric vehicle adoption.
