Science

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Tunneling across a tiny gap:

Conduction and thermal radiation are two ways in which heat is transferred from one object to another: Conduction is the process by which heat flows between objects in physical contact, such as a pot of tea on a hot stove, while thermal radiation describes heat flow across large distances, such as heat emitted by the sun.

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This illustration depicts phonons "tunneling" from one lattice of sodium chloride to another. New research shows that phonons can reach across a gap as small as a nanometer, “tunneling” from one material to another to enhance heat transport.

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Future electronics based on carbon nanotubes: A team at the University of Illinois at Urbana-Champaign finds way to purify arrays of single-walled carbon nanotubes (SWCNTs), possibly providing a step toward post-silicon circuits and devices

The exceptional properties of tiny molecular cylinders known as carbon nanotubes have tantalized researchers for years because of the possibility they could serve as a successors to silicon in laying the logic for smaller, faster and cheaper electronic devices.

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Thermal gradients associated with mild heating of a metallic carbon nanotube induces thermocapillary flows in a thin organic overcoat. The result is an open trench with the tube at the base.

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Scientists Find New Method to Determine Anti-Depression Drug in Biological Samples

Iranian researchers from Bu-Ali Sina University of Hamedan succeeded in the production of a sensor which can be used in a sensitive tool to measure an anti-depression drug.

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Application of Egg White in Production of Nanoparticles

Iranian researchers from Mashhad University of Medical Sciences proposed the application of egg white as the size-controlling agent in the production of oxide nanoparticles.

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New advancements in 3-D designs for neural tissue engineering

It is well known that neurological diseases and injuries pose some of the greatest challenges in modern medicine, with few if any options for effectively treating such diagnoses, but recent work suggests a unique approach for reconstructing damaged neural tissue. In an article published in the journal Neural Regeneration Research, several new designs for 3D tissue constructs are described for using stem cells grown on nanofiber scaffolding within a supportive hydrogel.

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These are examples of 3-D neural tissue construct designs. 3D tissue and organoid models will provide incredible new tools and insights into neurological injury and disease, as well as great potential for regenerating functional neural tissue from stem cells.

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MIPT researchers put safety of magic anti-cancer bullet to test

A group of MIPT researchers together with their colleagues from Moscow, Nizhny Novgorod, Australia and the Netherlands have carried out the first systematic study analyzing the safety of so-called upconversion nanoparticles that may be used to treat skin cancer and other skin diseases. This study is one of the most important steps on the path to new, safe and effective methods to diagnose and treat cancer.

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This image shows fluorescent nanoparticles in cells.

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Dusty substructure in a galaxy far far away

Stoffige substructuur in ver sterrenstelsel onthuld

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Proton beams are back in the LHC

After two years of intense maintenance and consolidation, and several months of preparation for restart, the Large Hadron Collider, the most powerful particle accelerator in the world, is back in operation. Today at 10.41am, a proton beam was back in the 27-kilometer ring, followed at 12.27pm by a second beam rotating in the opposite direction. These beams circulated at their injection energy of 450 GeV. Over the coming days, operators will check all systems before increasing energy of the beams.

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Optics, nanotechnology combined to create low-cost sensor for gases

Engineers have combined innovative optical technology with nanocomposite thin-films to create a new type of sensor that is inexpensive, fast, highly sensitive and able to detect and analyze a wide range of gases.

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Camera chip provides superfine 3-D resolution: New imaging technology fits on a tiny chip and, from a distance, can form a high-resolution 3-dimensional image of an object on the scale of micrometers

Imagine you need to have an almost exact copy of an object. Now imagine that you can just pull your smartphone out of your pocket, take a snapshot with its integrated 3-D imager, send it to your 3-D printer, and within minutes you have reproduced a replica accurate to within microns of the original object. This feat may soon be possible because of a tiny new, tiny high-resolution 3-D imager developed at Caltech.

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The micrometer-resolution image, taken from roughly half a meter (1.5 feet) away, shows the height of a US penny at various points.

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