Sentences with phrase «of organic molecule»

The influence of the different elements of an organic molecule structure on the main kinetic parameters of its unimolecular reaction in the high - pressure region

The typical design of a perovskite solar cell sandwiches the perovskite between a hole transport material, a thin film of an organic molecule called spiro - OMeTAD that's doped with lithium ions and an electron transport layer made of titanium dioxide, or TiO2.

Images below are the ALMA views of the distribution of the organic molecule HNC (left), HC3N in the upper atmosphere (center), and HC3N in the lower intermediate - to - lower elevations in the atmosphere (right) of Saturn's moon Titan.

A serendipitous detection of the organic molecule methanol around an intriguing moon of Saturn suggests that material spewed from Enceladus undertakes a complex chemical journey once vented into space.

Karsten Lucht, Dirk Loose, Maximilian Ruschmeier, Valerie Strotkötter, Gerald Dyker, Karina Morgenstern: Hydrophilicity and microsolvation of an organic molecule resolved on the sub-molecular level by scanning tunneling microscopy, Angewandte Chemie International Edition, 2017, DOI: 10.1002 / anie.201711062

The potassium - atom mouth of an organic molecule grabs one of the oxygen atoms (red) in uranium dioxide.

These mystery substances were called «vitamines» because it was theorized that they were amines, a type of organic molecule.

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).

He still saw all of those organic molecules as physical entities, objects that could be unraveled, manipulated, and understood.

During an impact, clay could have trapped substantial amounts of the organic molecules formed in the same event, and then settled as marine sediment, the researchers say.

It was a color that both men knew well — the color of complex polymers made up of organic molecules.

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

Geneticists and information scientists have built and are building models for the transition of organic molecules to self - replicating living organisms, based on theories of Earth's early development provided by astronomers, geologists, and oceanographers and on the evidence of fossilized microorganisms discovered by paleontologists.

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.

Afterwards, they recovered a variety of organic molecules, including fatty acids, amines, and an amino acid.

The Methods: Photochemical modeling by a Caltech team indicates that ethane, a hydrocarbon detected on Titan by both of the Voyager spacecraft and the European Infrared Space Observatory, is created when solar ultraviolet light breaks down methane, a minor component of Titan's nitrogen - rich atmosphere, into a stew of organic molecules that form a dense orange - brown smog.

To build their transistor, Jan Hendrik Schn of Bell Laboratories in New Jersey and colleagues, who describe their findings in the current issue of the journal Nature, allowed many thousands of organic molecules to assemble themselves onto a gold film like bristles on a brush.

Tachibana says, «The formation of organic molecules, including prebiotic ones, may efficiently occur in a very cold environment.»

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.

One such extra element is the methyl group, a common structural component of organic molecules.

That same north fragment of Sagittarius B2 in particular has offered up an intriguingly intricate series of organic molecules.

So far, Steele has found no hint of martian biology — just trace amounts of organic molecules associated with volcanic processes.

Inspired by Aequoreas green glow, Mark Thompson of the University of Southern California and his colleagues synthesized chromophore - like molecules, which they then seeded onto a matrix of organic molecules in an organic LED (OLED).

Dawn's spectrometer will be able to detect the presence of organic molecules.

In a private letter, Miescher argued that the various forms of organic molecules were sufficient for «all the wealth and variety of hereditary transmission [to] find expression just as all the words and concepts of all languages can find expression in 24 to 30 alphabetic letters.»

These so - called nanocrystal quantum dots, however, have a coating of organic molecules that tends to block out the electrons needed to stimulate the dots.

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.

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.

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.

In a recent study published in the scientific journal Nature Nanotechnology, physicists and chemists of the University of Münster (Germany) describe an experimental approach to visualising structures of organic molecules with exceptional resolution.

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.

As on Earth, another challenge would be keeping the solar panels clean, in this case of organic molecules created in Titan's atmosphere that would otherwise reduce their efficiency.

Because of graphene's chemical inertness and biocompatibility, the team expects that the new technique will be effective in detecting trace amounts of organic molecules.

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.

The roadmap outlines future research directions toward the goal of enhancing human radioresistance, including upregulation of endogenous repair and radioprotective mechanisms, possible leeways into gene therapy in order to enhance radioresistance via the translation of exogenous and engineered DNA repair and radioprotective mechanisms, the substitution of organic molecules with fortified isoforms, the coordination of regenerative and ablative technologies, and methods of slowing metabolic activity while preserving cognitive function.

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.

14 Can't escape them: Sugars are the building blocks of carbohydrates, the most abundant type of organic molecules in living things.

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

It has long been known that graphene is also fundamentally suited to detecting traces of organic molecules.

Even the simplest life forms incorporate two amazingly complex types of organic molecules: proteins and nucleic acids.

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.

Within a few years, Snyder and other radio astronomers had identified dozens of organic molecules, including formic acid (which causes the sting in ant bites) and methanol (a simple alcohol).

Organic electronic devices such as OLEDs and organic solar cells use thin films of organic molecules for the electrically active materials, making flexible and low - cost devices possible.

«By increasing the thickness of an extremely thin layer of organic molecules inserted as a spacer between the donor and acceptor, we could reduce the attraction between the hole and electron in the exciplex and thereby greatly influence the exciplex's energy, lifetime, and emission color and efficiency.»

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

On our planet, life replenishes the supply of organic molecules such as methane.

These have provided insight into the roles that marine bacteria, archaea, viruses and eukaryotic microbes have as global primary producers that provide nutrition at the base of the food chain; remineralization (the transformation of organic molecules into inorganic forms); and the deposition of carbon on the sea floor.

The morphologies of the tubules are inconsistent with known mineralogical crystallization mechanisms, and combined with evidence of organic molecules suggest that these tubules can not be formed through purely abiotic processes.

Twenty five research groups who have been developing methods for predicting crystal structures of organic molecules took part in the latest test.

Hiramatsu: We have yet to know what is the probability of the birth of life as a consequence of organic molecules and amino acids bonding together.