ScienceDaily: Top Technology News

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• Putting more science into the art of making nanocrystals
• Jagged graphene edges can slice into cell membranes
• IBEX spacecraft images the heliotail, revealing an unexpected structure
• A new way to trap light: Phenomenon could lead to new types of lasers and sensors
• Supercooled water transforms into new form of liquid
• Nanoparticles, 'pH phoresis' could improve cancer drug delivery
• Plain surfaces transformed into low-cost touch screens
• Where do astronauts go when they need 'to go?'
• Astronomers witness birth of Milky Way's most massive star
• Sun's loops are displaying an optical illusion
• Nanomaterial to help reduce carbon dioxide emissions

Putting more science into the art of making nanocrystals Posted: 10 Jul 2013 12:57 PM PDT Chemists are making the process of synthesizing quantum dots much more systematic. They are detailing an effective new method for purifying CdSe nanocrystals with well-defined surface properties.

Jagged graphene edges can slice into cell membranes Posted: 10 Jul 2013 11:20 AM PDT Researchers have shown how tiny graphene sheets can be big trouble for cells. Sharp corners and jagged edges on the sheets puncture cell membranes, allowing the sheet to enter the cell and disrupt function. The new understanding of how graphene interacts with cells could lead to safer production of this important nanomaterial.

IBEX spacecraft images the heliotail, revealing an unexpected structure Posted: 10 Jul 2013 11:19 AM PDT NASA's Interstellar Boundary Explorer spacecraft recently provided the first complete pictures of the solar system's downwind region, revealing a unique and unexpected structure.

A new way to trap light: Phenomenon could lead to new types of lasers and sensors Posted: 10 Jul 2013 11:18 AM PDT There are several ways to "trap" a beam of light -- usually with mirrors, other reflective surfaces, or high-tech materials such as photonic crystals. But now researchers have discovered a new method to trap light that could find a wide variety of applications.

Supercooled water transforms into new form of liquid Posted: 10 Jul 2013 11:08 AM PDT Researchers have identified that water, when chilled to a very low temperature, transforms into a new form of liquid. Through a simulation performed in "supercooled" water, the research team confirmed a "liquid-liquid" phase transition at 207 Kelvins, or 87 degrees below zero on the Fahrenheit scale.

Nanoparticles, 'pH phoresis' could improve cancer drug delivery Posted: 10 Jul 2013 08:44 AM PDT Researchers have developed a concept to potentially improve delivery of drugs for cancer treatment using nanoparticles that concentrate and expand in the presence of higher acidity found in tumor cells.

Plain surfaces transformed into low-cost touch screens Posted: 10 Jul 2013 07:40 AM PDT A low cost system, based on the principles of vibration and imaging that is able to track the movements of multiple fingers and of objects, can turn almost any surface into a touch-screen.

Where do astronauts go when they need 'to go?' Posted: 10 Jul 2013 07:31 AM PDT The first American man in space had no place "to go," and urinating in space was a tough problem for engineers to solve. A new article discusses the considerations necessary to accommodate this most basic physiological function.

Astronomers witness birth of Milky Way's most massive star Posted: 10 Jul 2013 03:22 AM PDT Scientists have observed in unprecedented detail the birth of a massive star within a dark cloud core about 10,000 light years from Earth.

Sun's loops are displaying an optical illusion Posted: 09 Jul 2013 12:56 PM PDT To understand how the corona is heated, some astronomers study coronal loops. These structures are shaped like an upside-down U and show where magnetic field lines are funneling solar gases or plasma. Our best photos of the sun suggest that these loops are a constant width, like strands of rope. However, new work shows that this is an optical illusion; the loops are actually tapered, wider at the top and narrower at the ends. This finding has important implications for coronal heating.

Nanomaterial to help reduce carbon dioxide emissions Posted: 09 Jul 2013 08:50 AM PDT Researchers have developed a new nanomaterial that could help reduce carbon dioxide emissions from coal-fired power stations.

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