http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Ahmed Busnaina, the William Lincoln Smith Professor and director of the NSF Nanoscale Science and Engineering Center for High-rate Nanomanufacturing at Northeastern, has developed a method called directed assembly that he calls the 3-D printing of tomorrow. It is faster, cheaper, and more versatile than traditional 3-D printing, and he said it could enable a wave of innovation not currently feasible. Here, Busnaina was asked to describe this process and its potential impact in areas such as health, electronics, and the environment. http://phys.org/news282550844.html Technology Fri, 15 Mar 2013 07:20:56 EST news282550844 (Phys.org)—Metals such as copper, zinc, and iron are important nutrients to all life. The special properties of these elements that make them so useful in technologies including batteries and catalysts – for example, having multiple stable oxidations states under ambient conditions – also make them useful to living organisms. http://phys.org/news266484935.html Chemistry Mon, 10 Sep 2012 09:10:14 EST news266484935 A team of experts in mechanics, materials science, and tissue engineering at Harvard have created an extremely stretchy and tough gel that may pave the way to replacing damaged cartilage in human joints. http://phys.org/news266078871.html Chemistry Wed, 05 Sep 2012 15:48:35 EST news266078871 (Phys.org) -- Fuji Xerox has come up with an electrophoretic type electronic paper (e-paper) prototype that can realize a color display without using a color filter. The company showcased the e-paper model at SID Display Week 2012, which ran this week in Boston. The Fuji Xerox model has a screen size of 5 inches, pixel count of 600 x 800, resolution of 200dpi, gradation of four, reflectance of 30 percent and contrast ratio of 10:1. Without the filter, the paper can render a color display that is brighter and more vivid, said the company. Its color e-paper concept involves moving colored particles for each color. http://phys.org/news258441410.html Electronics Sat, 09 Jun 2012 06:50:01 EST news258441410 A nanotechnology-based biosensor being developed by Kansas State University researchers may allow early detection of both cancer cells and pathogens, leading to increased food safety and reduced health risks. http://phys.org/news220615709.html Nanotechnology Tue, 29 Mar 2011 11:08:45 EST news220615709 Researchers at the University of Chicago have discovered a technique that is able to determine whether a child has obstructive sleep apnea (OSA) or habitual snoring by screening their urine. http://phys.org/news179379621.html Medicine & Health Mon, 07 Dec 2009 04:00:01 EST news179379621 Molecular biologists, including the cool dudes from CSI, use gel electrophoresis to separate DNA fragments from each other in order to analyze the DNA. A team of researchers under the leadership of Vici winner Serge Lemay, has now shown for the first time how the gel influences the movement of the DNA. The researchers drove a single DNA molecule through a nanopore in order to analyze the forces on the DNA. The results of the research were published on March 29 in Nature Physics. http://phys.org/news161519158.html Nanotechnology Thu, 14 May 2009 11:26:30 EST news161519158 (PhysOrg.com) -- When scientists need to detect and analyze DNA, or traces of a bioweapon or maybe an environmental contaminant, there's a good chance they'll turn to a lab technique called electrophoresis—or one of its many cousins. The versatile process is so pervasive that scientists published research employing it at a pace exceeding one paper every hour in 2007. But even though electrophoresis is used for routine experiments, such as gene sequencing or clinical analysis, it can be fiendishly difficult to create new experiment variations because the technique can be intricate and subtle. http://phys.org/news153592196.html Chemistry Wed, 11 Feb 2009 16:30:50 EST news153592196 (PhysOrg.com) -- Dawid Zalewski of the University of Twente, Netherlands, has developed a mini-laboratory on a chip that can purify biological mixtures continuously. This is very different from the usual method that can only process small quantities at a time. In fifteen minutes, the PhD student’s chip processes no less than 25,000 times as much liquid as a ‘normal chip’ in a single cycle. Zalewski was awarded his doctorate on 24 October at the faculty of Science and Technology. http://phys.org/news144677460.html Chemistry Fri, 31 Oct 2008 13:11:00 EST news144677460