Science

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Microfluidic Breakthroughs Offer New Options for Ease and Accuracy in Extraction of Rare Cells or Separating Blood

Using something called "inertial microfluidics," University of Cincinnati researchers are able to continuously and selectively collect rare cells, such as circulating tumor cells, based on their size vs. other biomarkers. This could reduce analysis time and increase selectivity while reducing reliance on antibody-based testing in clinical tests.

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This image shows the size-dependent extraction of particles. The fluorescent image indicates trapping of larger particles while smaller particles pass through.

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Titanium Oxide Nanotubes Used to Fabricate Optimized Anodes for Fuel Cells

Iranian researchers at Tabriz University succeeded in the production of a porous layer of titanium dioxide nanotubes on the titanium surface, using titanium as the sub-layer and its anodization in organic solutions.

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Hubble Sees Violent Star Formation Episodes in Dwarf Galaxies

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European Commission consults on Future and Emerging Technologies

The European Commission is launching a public consultation to identify promising and potentially game-changing directions for future technological research.

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NASA Radar Penetrates Thick, Thin of Gulf Oil Spill

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NASA UAVSAR image of the Deepwater Horizon oil spill, collected June 23, 2010. The oil appears much darker than the surrounding seawater in the greyscale image. This is because the oil smoothes the sea surface and reduces its electrical conductivity, causing less radar energy to bounce back to the UAVSAR antenna. Additional processing of the data by the UAVSAR team produced the two inset color images, which reveal the variability of the oil spill's characteristics, from thicker, concentrated emulsions (shown in reds and yellows) to minimal oil contamination (shown in greens and blues). Dark blues correspond to areas of clear seawater bordering the oil slick.

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Electron 'sniper' targets graphene

Because of its intriguing properties graphene could be the ideal material for building new kinds of electronic devices such as sensors, screens, or even quantum computers.

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Monster Galaxy May Have Been Stirred Up By Black-hole Mischief

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Immunomodulatory effect of nanoparticles

Polymeric nanoparticles for immunotherapy represent a dynamic research field. The possibility to control their size, charge, and other surface properties provides the opportunity to affect both uptake by immune cells and induction of immunity. Dendritic cells (DC), which represent the most potent antigen-presenting cells of the immune system, are one of the main targets of current NP-based immunotherapeutic approaches against tumors.

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NASA's NuSTAR Spots Flare From Milky Way's Black Hole

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NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has captured these first, focused views of the supermassive black hole at the heart of our galaxy in high-energy X-ray light.

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NRL Researchers Discover New Route to Spin-Polarized Contacts on Silicon

Scientists at the Naval Research Laboratory have demonstrated that graphene, a single layer of carbon atoms in a honeycomb lattice, can serve as a low resistance spin-polarized tunnel barrier contact which successfully enables spin injection/detection in silicon from a ferromagnetic metal. The graphene provides a highly uniform, chemically inert and thermally robust tunnel barrier free of defects and trap states which plague oxide barriers. This discovery clears an important hurdle to the development of future semiconductor spintronic devices, that is, devices which rely on manipulating the electron's spin rather than its charge for low-power, high-speed information processing beyond the traditional size scaling of Moore's Law.

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NRL scientists successfully used graphene, a single layer of carbon atoms in a honeycomb lattice (gray), as a tunnel barrier to electrically inject spin polarized electrons from a ferromagnetic NiFe contact (red) into a silicon substrate (purple). The net spin accumulation in the silicon produces a voltage, which can be directly measured. Spin injection, manipulation and detection are the fundamental elements allowing information processing with the electron spin rather than its charge.

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