Sentences with phrase «organic molecules from»

Carbon forms the backbone of organic molecules from which all forms of life that we know have been built.

«The abundance of organics and their role in getting life started may make a big, big difference between a giant universe with a lot of life, and one with very little,» says Scott Sandford of NASA's Ames Research Center in Moffett Field, California, who studies organic molecules from space.

Not exact matches

This is still a far cry from a cell, but the important thing is that the experiments uniformly demonstrate that organic molecules have a natural tendency to clump together in increasingly complex ways under early Earth - like conditions.

I am not one of those and therefore, I can not form molecules which may become organic, and which may eventually — with added energy from solar rays on a planet which is capable of supporting it — evolve» endless form most beautiful and most wonderful.»

Hitherto, in the eyes of a Science too much accustomed to reconstruct the world on one spatial axis extending in a line from the infinitely small to the infinitely great, the larger molecules of organic chemistry, and still more the living cellular composites, have existed without any defined position, like wandering stars, in the general scheme of cosmic elements.

There can still be local decreases in entropy, as happens with all living organisms while they are still alive and in some other situations as, for example, when complex organic molecules are made from their constituent atoms in outer space, as now seems to be the case.

There are 9 essential amino acids that we must get from the diet and 12 that are non-essential, which the body can produce out of other organic molecules.

To try to develop a more sensitive probe for isolating individual peptides — short strands of amino acids — from a pool of similar molecules, a team led by chemist Clark Still of Columbia University 4 years ago synthesized small organic compounds that selectively fish out peptides dissolved in chloroform.

A molecular cloud is an interstellar cloud of dust, gas, and a variety of molecules ranging from molecular hydrogen (H2) to complex, carbon - containing organics.

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.

Though all my work required the making of new molecules, individual projects ranged from designing organic compounds that control the reactivity of metal ions to generating conductive polymers for lithium - ion batteries.

When that happens, the hybrid membrane switches from having a single channel to transport carbon dioxide, in which the molecules must go through the polymer, to two channels, in which the molecules can either move through the polymer or through the metal - organic framework highways.

However, it is still unknown what kinds and quantities of organic molecules were actually supplied from interstellar space.

It is thought that as the Solar System formed 4.6 billion years ago, some of these organic molecules were transported from interstellar space to the planet forming disk.

In the first published account of sugar and alcohol in a comet, astronomers have detected ethanol, the sugar glycolaldehyde, and other organic molecules spewing from a comet known as comet Lovejoy, New Scientist reports.

MOFs are microscopic - scale porous crystals engineered from metal ions bound together by organic molecules called ligands.

They analyzed the samples for colored dissolved organic matter, which contains light - absorbing molecules from the breakdown of plant polymers such as lignin.

Astronomers used a radio telescope called the Atacama Large Millimeter / submillimeter Array (ALMA) to look for organic molecules in the Large Magellanic Cloud, located about 160,000 light - years from Earth.

In two star - forming regions of the galaxy, ALMA picked up signals emanating from three complex organic molecules, including dimethyl ether and methyl formate, which had not previously been detected outside our own galaxy.

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.

One involves organic molecules — not the pricey kind from Whole Foods, but molecules that contain carbon.

While working with synthetic organic molecules, Arndt's group has observed interference patterns for the largest molecule ever: a 430 - atom behemoth with 8 tentacles radiating from its center, earning it the nickname, «the quantum octopus.»

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.

Taking their cue from nature, where structurally well - defined biopolymers are the norm, e.g. in DNA and genes where slight variations to the order of a small number of organic molecules gives rise to the diverse spectrum of life, they have developed a self - sorting strategy that regulates the order molecules take when forming long chain polymers.

If it can be developed into a successful technology, the new material might help remove from the water supply small organic molecules such as Bisphenol A (BPA), a byproduct of some plastic manufacturing that has been linked to environmental damage and health risks.

But the size of the observed bloom could mean that current estimates of the rates of so - called primary production — the production of organic molecules that results from phytoplankton consuming nutrients and photosynthesizing — on the Arctic continental shelf may be as much as 10 times too low, the team reports online today in Science.

The heterotrophs receive the organic carbon they need to grow from the anammox bacteria in the form of several specific molecules, the researchers discovered in the study.

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.

Yet, according to Jean - Loup Bertaux and Rosine Lallement — from the Laboratoire Atmosphères, Milieux, Observations Spatiales (CNRS / UPMC / Université de Versailles Saint - Quentin - en - Yvelines) and the Galaxies, Étoiles, Physique et Instrumentation department of the Paris Observatory (Observatoire de Paris / CNRS / Université Paris Diderot), respectively — these organic molecules were produced in interstellar space, well before the formation of the Solar System.

The existence of microbial life on Mars remains highly controversial, but recent evidence of water, complex organic molecules, and methane in the Martian environment, combined with findings from the 1976 Viking mission, have led to the conclusion that existing life on Mars is a possibility that must be considered, as presented in an article in Astrobiology.

In addition to water, the rover will look for organic carbon — from which life could be built — and molecules that could serve as an energy source.

Photosynthesis allows them to take in the latter directly from the air, but they have to procure nitrogen through their roots in the form of organic molecules like ammonia or urea.

«When lightning strikes, it acts like a mini smelter, and the organic molecules strip off oxygen from the phosphorus,» Pasek says.

Makoto Fujita and his team from Japan's University of Tokyo created scaffolding - like crystalline structures known as metal - organic frameworks, or MOFs, whose empty spaces can soak up molecules and provide an ordered array that enables the molecules to then be characterized by X-ray analysis.

Instead of seeing alternate theories as competitive, he contends that «the organic molecules come from many sources.»

Substrate molecules, such as organic compounds containing double bonds, can extract oxygen atoms from this bank to produce oxidized products.

Comets contain abundant organics — carbon - based molecules that are not necessarily formed from life.

The risk from chlorine and chlorine - containing organic molecules in water is minute compared to the potential spread of cholera and typhoid,» she said.

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.

A few months ago, researchers from the Lawrence Berkeley National Laboratory in California for the first time succeeded in observing the cross-linking of polymer molecules in the active layer of an organic solar cell during the printing process.

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.

They were looking for a site with a venting process that produces a lot of hydrogen because of the potential it holds for the chemical, or abiotic, creation of organic molecules like methane — possible precursors to the prebiotic compounds from which life on Earth emerged.

Studies of life in hydrothermal vents and of the chemistry of hydrothermal vents have provided no information about the evolution of RNA and DNA and of their nucleotides from inorganic and simple organic molecules.

In a new study, researchers from the United States and France conducted a new Miller - Urey - style experiment that mixed the organic molecules found in Titan's atmosphere.

Unlike conventional inorganic metals in which electrons zip through a crystalline lattice, in organics electrons must hop from one molecule to another, like pails of water being passed by a bucket brigade.

In addition, SAM will investigate the chirality, or handedness, of organic molecules to look for hints that they came from life.

The researchers carbon - dated dissolved organic molecules in water from the vents.

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.

«Borates are one possible bridge from simple organic molecules to RNA.