Science | WPN World People News

This schematic drawing shows a nanoscale faucet: a long cylindrical channel connected to a container of superfluid helium. When vacuum pressure is applied to one end of the faucet's opening-a nanopore-helium atoms (represented here as pink balls) flow through, and are collected and measured as they spread out. An incredibly sensitive detector is needed to register the hundredths of nanograms of helium that flow through each second.

Gold rush at the initial stage of iron-based superconductors.
High Tc iron-based superconductor was reported in January 2008 via the discovery of iron- and nickel-based superconductors in 2006-2007. Half a year since then was just a dog year, i.e., the maximal Tc was pushed up to ~55K, the major parents compounds were found, and new carrier doping method ( Co substitution of Fe sites) and epitaxial thin film growth were reported. Note the received date in the figure denotes day that the submitted manuscript was received at the journal office or the manuscript was posted on ArXiv web server.

Iran on Tuesday unveiled three new home-made drugs used to treat people with acute kidney problems, a nanotechnology mask and a water treatment system.

Iranian researchers from Amirkabir University of Technology synthesized new nanostructures that have application in the production of lithium ion batteries.

A scanning electron microscopy shows a cross section of the composite photocathode (left). By TEM analysis, nanoparticles of Pt could be identified in the TiO2 thin film (right).

Rubidium atoms are held in place using a pair of laser beams at a wavelength of 1064 nm. Two other beams, promote the atoms from their ground state (5s) first to the 5p state and then to the still higher 18 s state.

LED Bulb

Once the laser beam hits the surface of a sample it starts to generate heat which diffuses along the membrane but also it diffuses to the ambient gas. That effect reduces the width of the temperature distribution in the photonic crystal membrane.

Location of defects is important to estimate the quality of carbon materials and to predict physical and chemical properties of graphene systems.