Sentences with phrase «organic molecule called»

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.

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

The MOF under study was made up of pyramidal molecular frameworks, each consisting of a zinc atom surrounded by four cyclical, organic molecules called imidazolates.

Four of the seven peptides made amyloids that could break down organic molecules called esters (Nature Chemistry, doi.org/rxf).

The final ingredient may be reddish organic molecules called tholins, found on Pluto and other cold or icy bodies in the solar system.

Instead of metal, this compound contains organic molecules called nitroxides.

Producing commercially relevant quantities involves the reduction in solution of positively charged metal ions to neutral atoms in the presence of organic molecules called ligands, which arrest the growth at a particular number of metal atoms.

Not exact matches

He worked on the organic synthesis of molecules able to recognize and bind with other, smaller molecules, a phenomenon called molecular recognition, which had won Donald J. Cram, Jean - Marie Lehn, and Charles J. Pedersen the Nobel Prize in chemistry in 1987.

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.

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.

In research published in the Proceedings of the National Academy of Sciences in 2012, Donahue and colleagues showed conclusively that organic molecules given off by pine trees, called alpha - pinene, are chemically transformed multiple times in the highly oxidizing environment of the atmosphere.

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 researchers designed and synthesized two molecules based on a fragrant organic chemical compound called coumarin.

They found that organic compounds, called amino nitriles, the molecular precursors to amino acids, were able to use molecules present in interstellar ice to trigger the formation of the backbone molecule, 2 - deoxy - D - ribose, of DNA.

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

After some trial and error, the team designed a structure that worked: a metallo - organic case containing both metal ions and a carbon backbone surrounding a spherical molecule called bicyclooctane.

«We utilize organic compounds with so - called conjugated double - bond systems, which allow the electrons to circulate freely within the molecule,» Langhals explains.

Secondly, the organic material in sewage normally contains long - chain carboxylic molecules, which are negatively charged — something Booker calls «a lucky stroke of nature».

Among biogenic volatile organic molecules is a class of compounds called monoterpenes, which react with ozone, hydroxyl radicals, nitrogen oxides, and other gases in the atmosphere.

In so - called organic LEDs, organic molecules excited by electricity shed their extra energy by giving off photons, a process called fluorescence.

When phytoplankton use carbon dioxide to make new cells, a substantial portion of that cellular material is released into the sea as a buffet of edible molecules collectively called «dissolved organic carbon.»

The paper reports a metal - free flow battery that relies on the electrochemistry of naturally abundant, inexpensive, small organic (carbon - based) molecules called quinones, which are similar to molecules that store energy in plants and animals.

The near - infrared mapping spectrometer on NASA's Galileo spacecraft found evidence of the presence of molecules made of oxygen, carbon, sulfur, hydrogen, and nitrogen on Europa, and a hint of the presence of a class of complex organic compounds called tholins which may be driven by pre-biotic processes (more).

Further investigation showed that Titan's atmosphere has organic aerosols, called tholins, that likely formed from molecules such as methane and nitrogen.

In ancient bone, DNA is nestled among diverse organic and inorganic molecules, including collagen and a mineral form of calcium called hydroxyapatite, which must be dissolved away to extract sequenceable genetic material.

«The discovery of native molecular hydrogen (H2) completes the set of what I would call the «basic» requirements for life as we know it: Liquid water, organic molecules, minerals, and an accessible source of «free» energy.

Webb will enable mapping of organic molecules — called hydrocarbons — across the disks of Uranus and Neptune for the first time, providing insight into the thermodynamics, chemistry, and circulation within these two atmospheres.

The O.G., the reigning champion, the most common, most widely used, most well - researched: creatine monohydrate, so called because it's made by binding creatine (an organic acid) with one molecule of water.