Science

Tags:

Recycled Plastic Proves Effective in Killing Drug-Resistant Fungi: IBN and IBM discover new medical application for converted PET bottles

Researchers at Singapore's Institute of Bioengineering and Nanotechnology (IBN) and California's IBM Research - Almaden (IBM) have discovered a new, potentially life-saving application for polyethylene terephthalate (PET), which is widely used to make plastic bottles. They have successfully converted PET into a non-toxic biocompatible material with superior fungal killing properties.

48658.jpg
The novel small molecule compounds readily form nanofibers with strong antifungal capability.

Tags:

Study Links Arctic Melting, Extreme Weather

As ice at the North Pole disappears at an alarming rate, some researchers are finding a link between that phenomenon and recent bouts of extreme weather. A new study suggests rapid warming in the Arctic may be altering weather patterns across the Northern Hemisphere, but skeptics say the case is far from proven.

Tags:

The Sun's Magnetic Field is about to Flip

helio-sheet_0.jpg
An artist's concept of the heliospheric current sheet, which becomes more wavy when the sun's magnetic field flips.

Tags:

Optical Quality Improvement of Electrical Circuits’ Electrode Zinc Oxide Nanowires

Iranian researchers from Islamic Azad University, the Masjed Soleiman Branch, succeeded in the production of zinc oxide nanowire as a nanostructure with electrode and high optical quality.

48647.jpg

Tags:

Study shows how water dissolves stone, molecule by molecule: International team uses computers, experiments to better predict chemical dissolution

Scientists from Rice University and the University of Bremen's Center for Marine Environmental Sciences (MARUM) in Germany have combined cutting-edge experimental techniques and computer simulations to find a new way of predicting how water dissolves crystalline structures like those found in natural stone and cement.

48628.jpg
The dissolution process of a crystalline structure in water is shown: two bonded SiO4 -- molecules dissolve (top left), a quartz crystal (top right) and the computer-simulated surface of a dissolving crystalline structure (below).

Tags:

Laser light at useful wavelengths from semiconductor nanowires: Nanowire lasers could work with silicon chips, optical fibers, even living cells

Thread-like semiconductor structures called nanowires, so thin that they are effectively one-dimensional, show potential as lasers for applications in computing, communications, and sensing. Scientists at the Technische Universitaet Muenchen (TUM) have demonstrated laser action in semiconductor nanowires that emit light at technologically useful wavelengths and operate at room temperature.

48627.jpg
TUM researchers have demonstrated that semiconductor nanowires like the one shown here can act both as lasers, generating coherent pulses of light, and as waveguides, similar to optical fibers. Because these nanowire lasers emit light at technologically useful wavelengths, can be grown on silicon substrates, and operate at room temperature, they have potential for applications in computing,

Tags:

Goddard Planetary Instruments Score a Hat Trick

mass_spec_hat_trick_0_0.jpg
Three mass spectrometers built at Goddard were operating on the same day at the moon, on Mars and en route to Mars.

Tags:

Goddard Planetary Instruments Score a Hat Trick

mass_spec_hat_trick_0.jpg
Three mass spectrometers built at Goddard were operating on the same day at the moon, on Mars and en route to Mars.

Tags:

New Instrument Continues Gathering Sun's Effects on the Earth

solar-irradiance_0_0.jpg
Total solar irradiance (shown in color) over the past three solar cycles since 1978 adjusted to a ground-based cryogenic instrument funded by NASA in collaboration with the National Institute of Standards and Technology (NIST).

Tags:

Supernova Blast Provides Clues to Age of Binary Star System

cirx1_w11_0.jpg

Could not connect2