1. Tunable Bandgap in Graphene by the Controlled Adsorption of Water Molecules Lack of a bandgap limits the utilization of graphene in nanoelectronic and nanophotonic devices. It is shown that a tunable bandgap of up to ≈0.2 eV can be engineered by controlled adsorption of water molecules to a graphene surface. The effect is reversible, …
Nanoletters – Large-Diameter Graphene Nanotubes Synthesized Using Ni Nanowire Templates We report a method to synthesize tubular graphene structures by chemical vapor deposition (CVD) on Ni nanowire templates, using ethylene as a precursor at growth temperature of around 750 °C. Unlike carbon nanotubes that are synthesized via conventional routes, the number of graphene layers is …
Nanoletters – Microwave-Assisted Fabrication of Carbon Nanotube AFM Tip A new, fast, alternative approach for the fabrication of carbon nanotube (CNT) atomic force microscopy (AFM) tips is reported. Thereby, the tube material is grown on the apex of an AFM tip by utilizing microwave irradiation and selective heating of the catalyst. Reaction times as short …
ACS Nano – An All-Electric Single-Molecule Motor Many types of molecular motors have been proposed and synthesized in recent years, displaying different kinds of motion, and fueled by different driving forces such as light, heat, or chemical reactions. We propose a new type of molecular motor based on electric field actuation and electric current detection …
A gravity loading countermeasure skinsuit Made of an elastic material, the suit is deliberately cut too short for the wearer, and has stirrups that wrap around the feet so that it stretches when the wearer puts it on. The elasticity of the stretched material then pulls the wearer’s shoulders towards their feet just as gravity …
Researchers from North Carolina State University have found a way to optimize the development of DNA self-assembling materials, which hold promise for technologies ranging from drug delivery to molecular sensors. The key to the advance is the discovery of the “Goldilocks” length for DNA strands used in self-assembly – not too long, not too short, …
Behind the scenes, China and the U.S. may already have struck a currency agreement, said Douglas Borthwick, head trader of Connecticut-based Faros Trading. Borthwick thinks China and the U.S. may have agreed to gradually appreciate the Chinese yuan over 5 years. This could occur at an average annual rate of 7.8 percent, which would amount …
Raghav Bahl is the Rupert Mudoch of India. He owns several TV Stations. Recently he has written a book ‘Super Power?’ which compares the two developing country China and India. Raghav writes in Forbes China today is investing nearly half its GDP, something that is simply unprecedented. Over 200 years of economic experience tells us …
1. Lockheed Martin recently began laboratory testing of an improved next-generation design of its HULC advanced robotic exoskeleton. The ruggedized HULC (Human Universal Load Carrier) system incorporates multiple design changes to increase reliability and performance in operational environments. New environmental sealing and packaging give the system’s electronics increased protection from natural elements and battlefield hazards. …
1. Charles Barton heard a presentation by Dr. Kazuo Furukawa and Keishiro Fukushima of the “International Thorium Energy & Molten-Salt Technology Inc.” (IThEMS) They want to build their first prototype of the Thorium Molten Salt 10 MW Mini-Fuji. Mr. Fukushima stated that IThEMS is negotiating with Korean Shipbuilders over the potential sale of Mini-Fujis for …
Tianhe-1A, a new supercomputer revealed today at HPC 2010 China, has set a new performance record of 2.507 petaflops, as measured by the LINPACK benchmark, making it the fastest system in China and in the world today It uses Nvidia GPGPUs, Intel chips and a chinese built interconnect that is twice as fast as Infiniband. …