News tagged with chemical structures

Building a better solar panel -- one molecule at a time

(Phys.org) -- One of the fundamental building blocks in modern chemistry, an organometallic chemical compound called ferrocene, has never been structurally defined - until now.

Chemistry / Materials Science

created May 25, 2012 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

Making microscopic machines using metallic glass

Researchers in Ireland have developed a new technology using materials called bulk metallic glasses to produce high-precision molds for making tiny plastic components. The components, with detailed microscopically patterned ...

Chemistry / Materials Science

created May 22, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Rational design can improve hydrogen fuel cell efficiency

(PhysOrg.com) -- Hydrogen fuel cells, in which the chemical energy of hydrogen is converted into electricity, offer the potential for a wide variety of applications, especially in transportation and power ...

Chemistry / Materials Science

created Feb 29, 2012 | popularity 4.4 / 5 (12) | comments 0 | with audio podcast feature

Chemists fabricate 'impossible' material

(PhysOrg.com) -- When atoms combine to form compounds, they must follow certain bonding and valence rules. For this reason, many compounds simply cannot exist. But there are some compounds that, although they ...

Chemistry / Materials Science

created Apr 25, 2011 | popularity 4.8 / 5 (68) | comments 9 | with audio podcast feature

Physicists investigate structural properties of spider webs

(PhysOrg.com) -- "Although the orb web of a spider is a lightweight structure, it seems to be a highly optimized structure, presumably as a result of evolution from the Jurassic period or earlier," explain ...

Physics / General Physics

created Feb 08, 2010 | popularity 4.5 / 5 (25) | comments 3 | with audio podcast feature

'Tunable' metal nanostructures for fuel cells, batteries and solar energy

(PhysOrg.com) -- For catalysts in fuel cells and electrodes in batteries, engineers would like to manufacture metal films that are porous, to make more surface area available for chemical reactions, and highly ...

Nanotechnology / Nanomaterials

created Apr 03, 2012 | popularity 4.9 / 5 (8) | comments 3 | with audio podcast

Israeli wins chemistry Nobel for quasicrystals (Update 3)

Israeli scientist Dan Shechtman was awarded the Nobel Prize in chemistry on Wednesday for a discovery that faced skepticism and mockery, even prompting his expulsion from his U.S. research team, before it ...

Chemistry / Materials Science

created Oct 05, 2011 | popularity 5 / 5 (4) | comments 7 | with audio podcast

Researchers ink nanostructures with tiny 'soldering iron'

Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) have shed light on the role of temperature in controlling a fabrication technique for drawing chemical patterns as small as 20 nanometers. ...

Nanotechnology / Nanophysics

created Nov 07, 2011 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

Shocking: Environmental chemistry affects ferroelectric film polarity the same way electric voltage does

(PhysOrg.com) -- “Ferroelectric materials are interesting scientifically, and, while they are used for some things now, they are potentially useful for even more applications in the future,” Brian Stephenson tells PhysOrg.com. Stephe ...

Physics / General Physics

created Feb 02, 2009 | popularity 4.2 / 5 (9) | comments 2 feature

Shocking new way to create nanoporous materials revealed

Scientists have developed a new method of creating nanoporous materials with potential applications in everything from water purification to chemical sensors.

Nanotechnology / Nanomaterials

created Nov 27, 2011 | popularity 4.4 / 5 (9) | comments 4 | with audio podcast

Gaseous halos of galaxies are much larger, more massive than the distribution of stars within the galaxy

New, high-precision equipment orbiting Earth aboard the Hubble Space Telescope is now sending such rich data back to astronomers, some feel they are crossing the final frontier toward understanding galaxy ...

Space & Earth / Astronomy

created Nov 17, 2011 | popularity 4.8 / 5 (9) | comments 29 | with audio podcast

Researchers suspend, image single DNA molecules

(PhysOrg.com) -- Studying chemical modifications in the chromosomes of cells is akin to searching for changes in coiled spaghetti. Scientists at Cornell have figured out how to stretch out tangled strands ...

Chemistry / Analytical Chemistry

created Oct 31, 2011 | popularity 4.5 / 5 (10) | comments 0 | with audio podcast

Scientists discover first new chlorophyll in 60 years

(PhysOrg.com) -- University of Sydney scientists have stumbled upon the first new chlorophyll to be discovered in over 60 years and have published their findings in the international journal Science.

Biology / Cell & Microbiology

created Aug 20, 2010 | popularity 4.9 / 5 (38) | comments 36 | with audio podcast

Jellyfish inspires latest ocean-powered robot (w/ video)

American researchers have created a robotic jellyfish, named Robojelly, which not only exhibits characteristics ideal to use in underwater search and rescue operations, but could, theoretically at least, never ...

Technology / Engineering

created Mar 20, 2012 | popularity 5 / 5 (4) | comments 3 | with audio podcast

Mother of pearl tells a tale of ocean temperature, depth

Nacre -- or mother of pearl, scientists and artisans know, is one of nature's amazing utilitarian materials.

Physics / Condensed Matter

created Feb 16, 2012 | popularity 3.6 / 5 (5) | comments 0 | with audio podcast