Sentences with phrase «organic molecules at»

Instruments on - board the rover will be able to detect organic molecules at concentrations of just 40 parts per billion.

Jim Tour and colleagues at Rice University in Houston, US, built a chassis and wheels for a nano - car from organic molecules at the end of 2005.

Not exact matches

Today the living world consists of at least ten million different small organic molecules and at least one trillion different proteins.

If this happens in space, this liquidlike behavior could help organic molecules form at the edges of infant planetary systems.

Scientists at the NASA Ames Research Center went even further in 2015 when they exposed the organic molecule pyrimidine, found in meteorites, to interstellar conditions.

We found that the particles seen in our images, which were droplets of ocean only hours earlier, bore evidence of large organic molecules and compounds that indicated hydrothermal activity similar to that observed at deep - sea vents on Earth's seafloor.

A prototype metal - free flow battery developed by engineer Michael Aziz and colleagues at Harvard University relies on the electrochemistry of naturally abundant, small organic molecules to store electricity generated from renewable, intermittent energy sources.

Seeking such a strategy, researchers at Northwestern University in Evanston, Illinois, created an organic ring - shaped molecule with four metal atoms: two zincs and two rhodiums.

With ALMA, an international team lead by Yoko Oya, a graduate student of Department of Physics, The University of Tokyo, and Nami Sakai, an associate chief scientist of RIKEN, studied the distribution of various organic molecules around a Solar - type protostar IRAS 16293 - 2422A at a high spatial resolution.

When the team applied the technique to a sample of the organic molecule PTCDA, not only did the molecules show up in intricate detail, an electrical signal was also detected between them (coloured green below), at exactly the locations where hydrogen bonds are present (Journal of the American Chemical Society, DOI: 10.1021 / ja104332t).

The new observations suggest water ice, mixed with organic molecules, is «widespread on the surface of the asteroid», Humberto Campins of the University of Central Florida in Orlando reported at a meeting of the American Astronomical Society's Division of Planetary Sciences in Fajardo, Puerto Rico, last week.

When I was at Bell Labs, I was surrounded by amazing organic chemists who could cook up all kinds of interesting polymers and organic molecules that we could use to build transistors.

This latest study looked at how the soft element arsenic interacts with thorium, because arsenic could in principle be used in organic molecules that bond to metal atoms and improve extraction processes.

But James Ferris, a prebiotic chemist at Rensselaer Polytechnic Institute in Troy, N.Y., doubts that atmospheric electricity could have been the only source of organic molecules.

Other groups are looking at using a single organic molecule, strung between two electrodes, as a transistor.

«We've only found simple organic molecules so far,» says Ashwin Vasavada, a planetary scientist at NASA's Jet Propulsion Laboratory who leads Curiosity's science team.

Hörst, a planetary scientist at the University of Arizona, began studying Titan's chemistry after the NASA Cassini probe detected complex organic molecules in the atmosphere.

At the moment of impact, a thin layer of organic molecules on the surface of each fiber freezes up, locking the sturdy strands in place.

David Leigh at the University of Edinburgh, UK, and colleagues wove the pentafoil using «needles» made of positively charged iron ions attached to long, skinny organic - molecule «threads».

Biochemist Lars Thelander at the announcement from the Royal Swedish Academy of Sciences: «Palladium - catalyzed cross-coupling has made it possible to synthesize carbon based molecules, for example, new medicines, agricultural chemicals and organic compounds used in the electronics industry.»

The new - generation microporous material designed at Dartmouth is the result of chemically stitching small organic molecules to form a framework that scrubs the isotope from water.

Hayes and his colleagues looked at organic compounds from sediments formed between 1.8 billion and 550 million years ago, and found that simple hydrocarbons from the sediments contained more carbon - 13 than more complex organic molecules.

This allowed them to investigate the phenomena of hydrophilicity and hydrophobicity at the molecular level, i.e. why certain parts of organic molecules attract or repel water.

The laser fires at a clear film of molecules consisting of tin and sulfur atoms arranged in a diamondlike pattern and surrounded by organic groups.

In the crystal developed by UCLA researchers, a metallo - organic framework (top and bottom layers of molecules) surrounds central sphere - like shapes, which can rotate at up to 50 billion rotations per second.

At present, most instruments on astrobiology missions look for habitable conditions, small organic molecules and other «biosignatures» that generally could not be formed without life.

Alán Aspuru - Guzik, a theoretical chemist at Harvard University in Cambridge, Massachusetts, and his colleagues, used computational models to screen a family of organic molecules and identify those likely to be the best semiconductors.

Meyer, a chemist at University of North Carolina at Chapel Hill and director of its Energy Frontier Research Center in Solar Fuels, noticed that two separate groups of researchers working on two separate parts of the photosynthetic reaction happened to be using the same class of catalyst — ones with an atom of the metal ruthenium surrounded by organic molecules.

To arrive at these findings, the researchers tested a number of molecules that are also used within organic solar cell research at Chalmers.

Philae will also look at complex organic molecules thought to be precursors to life, particularly whether their form is the left - handed or right - handed mirror image.

«Since nanoparticles started to be implemented in the first prototype devices, people have asked what's going on at the surface and how we can adjust properties by changing the organic molecules on the surface,» says Zherebetskyy.

Their results for the organic semiconductors 4T and P3HT showed that the guest molecules — quite contrary to the expectations — are not uniformly incorporated in the host lattice at all.

Waka Nakanishi, an organic chemist at the National Institute for Materials Science in Tsukuba, Japan, has designed a nanocar with two sets of «flaps» that are intended to flutter like butterfly wings when the molecule is energized by the STM tip.

Joe Reiss, vice president of marketing at manufacturer American Science and Engineering (AS&E) in Billerica, Mass., says low - atomic - number elements such as carbon, oxygen, hydrogen and nitrogen — common constituents of explosives — create a strong scattering effect visible in images that operators monitor on a screen yet discernible from the organic molecules in the human body.

For such applications it is important to be able to tailor the pore structure of the material and until now this has been achieved by using organic template molecules or swelling agents that need to be removed at high temperatures before the material can be used.

Consequently, the analysis revealed that the metal atoms at the center of the organic molecules retained electron spins, which could generate magnetism.

At the core of an OLED is an organic molecule that emits light when a negatively charged electron and a positively charged hole, which can be thought of as a missing electron, meet on the molecule.

In a paper released in the November 14, 2016 issue of the journal Nature Geoscience, Repeta and colleagues at the University of Hawaii found that much of the ocean's dissolved organic matter is made up of novel polysaccharides — long chains of sugar molecules created by photosynthetic bacteria in the upper ocean.

Lost City is at least 30,000 years old; in principle, that process could continue for millions of years, liberating hydrogen, methane, and more complex organic molecules along the way.

Scientists at The Scripps Research Institute (TSRI) have developed a method for modifying organic molecules that significantly expands the possibilities for developing new pharmaceuticals and improving old ones.

Researchers have converted heat directly to electricity by sandwiching organic molecules [blue ring above] between gold surfaces kept at different temperatures.

Justin Johnson, also a senior scientist at NREL, said the process is similar to MEG, except that it uses organic molecules — compounds made from carbon — instead of semiconductors.

Early in 1969, Snyder and Buhl set up shop at NRAO's Green Bank Telescope in West Virginia and chose their first target: formaldehyde, an organic molecule made up of two hydrogen atoms and an oxygen atom tethered to an atom of carbon.

After waiting for more than a year to get observing time, Snyder needed just a few nights at the telescope to demonstrate that complex organic molecules, formaldehyde in particular, permeate the galaxy.

«Chemists design organic molecules that glow persistently at room temperature.»

The issue for scientists has been that it is not easy to look at simple chlorine - containing organic molecules and determine the origin of the organic compound components.

Despite these hurdles, several years ago the team discovered chlorobenzene, a ring - shaped molecule containing six carbons, along with other chlorinated organics, using a sample from a mudstone Curiosity drilled at Yellowknife Bay near its landing site in Gale crater.

The dive might reveal complex organic molecules that could hint at life.

These could include complex organic molecules that might hint at life.

Instead of working with biological molecules, these researchers are demonstrating how to use the combinatorial technique to screen thousands of both organic and inorganic compounds at a time.