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  • Nanodermatology Society 2nd Annual Meeting
    • The Nanodermatology Society will be holding its second annual scientific conference in conjunction with the American Academy of Dermatology annual meeting at the Manchester Grand Hyatt San Diego, San Diego, CA, March 16th 2012
  • Northern Graphite To Provide Large Flake Graphite for Graphene Research
    • Northern Graphite Corporation has announced that it has agreed to supply its +48 mesh and +32 mesh extra large flake graphite to Grafen Chemical Industries for graphene research and has also agreed to enter into a cooperation agreement to develop intellectual property rights.
  • A framework for sourcing nanomaterials for food and food packaging
    • As You Sow, a nonprofit organization that promotes environmental and social corporate responsibility through shareholder advocacy, coalition building, and innovative legal strategies, has developed a framework on sourcing nanomaterials for food and food packaging. The Framework highlights what companies should ask their suppliers regarding the safety of nano-enhanced food products and packaging.
  • New study suggests nanodiamonds are safe for implants
    • Nanodiamonds designed to toughen artificial joints also might prevent the inflammation caused when hardworking metal joints shed debris into the body, according to an early study published this week.
  • Turning heat into power
    • A new kind of high-temperature photonic crystal could someday power everything from smartphones to spacecraft.
  • Harnessing nature's solar cells (w/video)
    • Photovoltaic panels made from plant material could become a cheap, easy alternative to traditional solar cells.
  • Manipulating the texture of magnetism
    • Derivation of equations that describe the dynamics of complex magnetic quasi-particles may aid the design of novel electronic devices.
  • Molybdenite-based phototransistor shows faster photoresponsivity than a graphene-based device
    • Apart from graphene, other two-dimensional structures are also known to have unique properties which researchers are eager to exploit for novel nanotechnology applications in nanoelectronics and sensor or energy storage technology. Particular interest has been on semiconducting materials, such as molybdenum disulfide (MoS2), an abundant material in nature, which exhibits the unique physical, optical and electrical properties correlated with its single-layer atomic layer structure. Researchers have now fabricated a mechanically exfoliated single-layer MoS2 based phototransistor and investigated its electric characteristics in detail. These new findings show that, when compared with a 2D graphene-based device, the single-layer MoS2 phototransistor exhibits a better photoresponsivity.
  • Antennaless RFID tags solve problem of tracking metal and liquids
    • The antennaless RFID tag developed at CNSE could help companies track products as varied as barrels of oil to metal cargo containers.
  • Quantum biology and Ockham's razor
    • A team of University of Bristol scientists explores whether new models or concepts are needed to tackle one of the 'grand challenges' of chemical biology: understanding enzyme catalysis.

PHYSorg.com

  • Photovoltaic panels made from plant material could become a cheap alternative to traditional solar cells
    • Within a few years, people in remote villages in the developing world may be able to make their own solar panels, at low cost, using otherwise worthless agricultural waste as their raw material.
  • Researchers move graphene electronics into 3D
    • In a paper published this week in Science, a Manchester team lead by Nobel laureates Professor Andre Geim and Professor Konstantin Novoselov has literally opened a third dimension in graphene research. Their research shows a transistor that may prove the missing link for graphene to become the next silicon.
  • Electronic salmon sandwich is paving the way towards cost-effective DNA memory device
    • In order to find a method for more cost-effective data storage, a group of researchers from the DFG-Center for Functional Nanostructures (CFN) at the Karlsruhe Institute of Technology (KIT) in Germany and the National Tsing Hua University in Taiwan have created a DNA-based “write-once-read-many-times” (WORM) memory device.
  • Researchers find molybdenite may be better suited for integrated logic circuits than graphene
    • (PhysOrg.com) -- Because of its physical limitations, silicon use in tiny integrated logic circuits will have to one day soon be replaced by something that can work in a smaller state. That is, if we want to see miniaturization of computer components to continue. For several years, graphene has been seen as the most likely heir to the throne because it’s only one atom thick, which seems to be the physical limit for non-quamtum based computers. The problem with graphene though, is that it’s not a semiconductor in its natural state; it has to be put through special processes to make it so. Molybdenite (MoS2), on the other hand is a true semiconductor and it, like graphene can be produced in atom thick sizes, perhaps making it the ideal material to replace silicon once it reaches its size limits. Andras Kis and his colleagues at the Swiss Federal Institute of Technology in Lausanne, seem to believe so, their research into a way to create an actual integrated logic circuit from this material has been published in Nature Nanotechnology.
  • Self-assembling nanorods: Researchers obtain 1-, 2- and 3-D nanorod arrays and networks
    • (PhysOrg.com) -- A relatively fast, easy and inexpensive technique for inducing nanorods - rod-shaped semiconductor nanocrystals - to self-assemble into one-, two- and even three-dimensional macroscopic structures has been developed by a team of researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab). This technique should enable more effective use of nanorods in solar cells, magnetic storage devices and sensors. It should also help boost the electrical and mechanical properties of nanorod-polymer composites.
  • Physics team calculates that graphene disks could be complete optical absorbers
    • (PhysOrg.com) -- In optical devices designed and used to collect light, there has always been a loss of light due to reflection, now, new research by a team of physicists from Spain and England has found, via calculation, that if charged graphene disks of just the right size were made and placed the right distance from one another, they should be able to achieve 100% light absorption. On the team were Sukosin Thongrattanasiri and Javier García de Abajo from Spain and Frank Koppens from the UK. Together they have published a paper in Physical Review Letters describing their research.
  • Nanoparticles used to increase thermal properties of transformer oil
    • Rice University scientists have created a nano-infused oil that could greatly enhance the ability of devices as large as electrical transformers and as small as microelectronic components to shed excess heat.
  • Engineers build first sub-10-nm carbon nanotube transistor
    • (PhysOrg.com) -- Engineers have built the first carbon nanotube (CNT) transistor with a channel length below 10 nm, a size that is considered a requirement for computing technology in the next decade. Not only can the tiny transistor sufficiently control current, it does so significantly better than predicted by theory. It even outperforms the best competing silicon transistors at this scale, demonstrating a superior current density at a very low operating voltage.
  • Ultra-fast photodetector and terahertz generator
    • Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, none of the available methods were fast enough to measure these processes in graphene. Scientists at the Technische Universitaet Muenchen, Germany, now developed a method to measure the temporal dynamics of this photo current. Furthermore they discovered that graphene can emit terahertz radiation.
  • Microscopy reveals 'atomic antenna' behavior in graphene
    • Atomic-level defects in graphene could be a path forward to smaller and faster electronic devices, according to a study led by researchers at the Department of Energy's Oak Ridge National Laboratory.

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