Sentences with phrase «nitrogen atoms»

What if we build cells with nitrogen atoms rather than carbon atoms?

Here there are two options: either you insert a single nitrogen atom into the extremely fine tip, or you add nitrogen at the final phase of the diamond production process.

In the study the researchers have modified the graphene by replacing some of the carbon atoms by nitrogen atoms.

The key to the whole design is the added nitrogen atom together with a neighboring vacancy in the crystal structure.

The final, prolonged emission was from the breakdown of now neutron - poor and unstable nitrogen atoms.

They also could observe the additional effects of nitrogen atom nuclei on the radio signature.

Fixing nitrogen means breaking a tenacious triple bond that holds nitrogen atoms in pairs in the atmosphere and joining a single nitrogen to a molecule that is easier for living things to use.

Many members of the team had previously reported uranium nitride and oxo complexes where the molecules are essentially the same except for swapping a single nitrogen atom for an oxygen.

Fixation processes free up nitrogen atoms from their diatomic form to be used in other ways, but nitrogen does not easily react with other chemicals to form new compounds.

Using diamine, a linear molecule with nitrogen atoms at each end, as a model ion, they found that nearly every ion that hit the surface bonded to it.

The nitrogen gas molecules (N2) disconnect and leave two free nitrogen atoms.

The ensuing ability to achieve a controlled trade - off between emissive and photocatalytic behavior of CDs depending on nitrogen atom positioning inside the aromatic domain is expected to bring substantial improvements on their efficiency for on - demand light emission or energy conversion applications.

Nitrogen doping is a process of introducing nitrogen atoms into the lattice of carbon atoms that make up graphene.

Two nitrogen atoms combine to form N2 molecules that stay in the atmosphere for millions of years.

Key features of the AMD070 pharmacophore include a triad of basic nitrogen atoms and a distal amino group linked to the central nitrogen via a 4 - carbon tether.

You said, «What if we build cells with nitrogen atoms rather than carbon atoms?

The diamond was then heated, which allowed nitrogen atoms and carbon vacancies to pair up, forming a type of defect known as a nitrogen - vacancy (NV) defect centre.

For example, a few nitrogen atoms among a diamond's millions of carbon atoms can make the rock appear yellow or brown, while blue diamonds have been besmirched with a few boron atoms.

The distribution of nitrogen atoms after the dissociation allowed the identification of the «active sites» for this reaction, which are formed by the low - coordinated, top metal atoms of atomic steps.

The researchers treated their carbon source with potassium hydroxide at 600 degrees Celsius to produce the powders with either sulfur or nitrogen atoms evenly distributed through the resulting porous material.

The study showed that seven - nanometer copper particles deposited on graphene doped with pyridinic nitrogen (an arrangement that causes nitrogen atoms to be bonded to two carbon atoms) had the best performance.

Nitrogen is the most common element in air, but living cells can not use its inert molecular form of two nitrogen atoms bound tightly together.

But at high pressures and temperatures above 3,140 degrees Fahrenheit, nitrogen atoms transform into a polymer, a chain of single - bonded atoms.

Baking that at 750 degrees Celsius (1,382 degrees Fahrenheit) in the presence of nitrogen and hydrogen gas reduced the graphene and locked nitrogen atoms to the surface, providing sites where ruthenium atoms could bind.

But any quantum computer — say, one whose qubits are laser - trapped ions or nitrogen atoms embedded in diamond — would still benefit from using entangled photons to move quantum information around.

Hexagonal boron nitride, stacked layers of boron and nitrogen atoms arranged in a hexagonal lattice, has recently been found to bend electromagnetic energy in unusual and potentially useful ways.

Yet most living things can't do any chemistry with the atmospheric form, two nitrogen atoms fiercely triple - bonded to each other.

The ratio of heavier to lighter nitrogen atoms fits the pattern of nitrogen - fixing enzymes contained in single - celled organisms, and does not match any chemical reactions that occur in the absence of life.

In addition, they are examining cyanide, a carbon and nitrogen atom combination that could provide new insights into that pseudo-atom's behavior.

The carbon 14 is formed when cosmic rays strike nitrogen atoms in the air.

Taken together, these results suggest that there is a considerable structural nitrogen atom redundancy in plerixafor, not all amino groups are necessary for activity, and the consistence of the overall charge at physiological pH does not directly affect potency.

They replaced particular carbon atoms in the hexagonal lattice with boron and nitrogen atoms using surface chemistry, by placing suitable organic precursor compounds on a gold surface.

In this case, doping refers to introducing nitrogen atoms into the carbon structure of graphene.

Amines are molecules that contain a basic nitrogen atom.

In a paper published online today (July 22) in the journal Science Advances, Terrones and colleagues revealed that adding nitrogen atoms to the pristine graphene further enhances sensitivity and, importantly, they gave a theoretical explanation for how graphene and N - doped graphene cause the enhancement.

This results in defects in the lattice structure: some few carbon atoms — fewer than 1 % — separate from the lattice and are replaced with nitrogen atoms, which bring along additional electrons.

To manufacture it, tightly bound pairs of nitrogen atoms must be split and then recombined with hydrogen.

By focusing on nitrogen atoms, Timothy A. Cross of Florida State University and his co-workers were able to determine exactly how M2 functions.

Shortly after their birth, they exploded as supernovas, ejecting newly formed carbon, oxygen, and nitrogen atoms into space.

It can attach itself to nitrogen atoms in the process of forming glutamine, and this action also detoxifies the body of ammonia.

Scientists can determine where an individual piece of meat comes from using a technique called isotope analysis, looking at the specific fingerprints of carbon, hydrogen, and nitrogen atoms to see where a cow lived.

It's a D color Type IIa diamond, which means it has very few or no nitrogen atoms and is one of the most expensive stones.

Nitrates consist of three oxygen atoms and one nitrogen atom.

Or did the strong binding of gallium and nitrogen atoms to their lattice sites render the atoms more difficult to displace?

They always hook up with other atoms, and the covalent bond between two nitrogen atoms is among the strongest of its kind.

«You've got to have that nucleophile (the sulfur or nitrogen atoms) to start the polymerization reaction.

Atomic - resolution scanning tunneling microscope (STM) images: (a) STM image without structurally superimposed image; (b) STM image with structurally superimposed image (gray: carbon atom, cyan: nitrogen atom).

That's one nitrogen atom plus one oxygen atom, possibly produced by breakdown of nitrate (one nitrogen plus three oxygens), which can be used by living organisms.

Rather, some energy source must break the bond and free the nitrogen atoms to react with other elements.

By raising the temperature to 85 °C and adding more hydrogen, the researchers got some of the paired nitrogen atoms to add two more hydrogens; then, each nitrogen atom left its partner completely to form ammonia (NH3).