Sentences with phrase «nitrogen atoms using»

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.

Not exact matches

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.

Carbon - 13, one tracer used to probe a variety of geochemical processes, is typically formed when high - energy cosmic rays enter the atmosphere and strike the most abundant form of nitrogen there — nitrogen - 14 atoms.

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.

Approximately 75 percent of compounds with medicinal uses have a nitrogen atom.

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.

When a nitrogen atom replaces a carbon in the crystal structure of diamond, it creates a nitrogen - vacancy center, which can store information that is written and read out using light.

Above this mass, in the upper main sequence, the nuclear fusion process can instead use atoms of carbon, nitrogen, and oxygen as intermediaries in the production of helium from hydrogen atoms.

Nitrogen, in the form of nitric oxide (one nitrogen atom and one oxygen atom), has been detected for the first time on the surface of Mars by a team of researchers using the Sample Analysis at Mars (SAM) instrument suite aboard NASA's Curiosity rover, adding to the growing speculation that life could have once flourished on ancient Mars.

Similar to previous work they had done on periodic boron - doping into GNRs, they used C4BN cyclic rings to provide the boron and nitrogen atoms.

Adam Foster of Aalto University in Finland and colleagues have now used the CO-functionalized tip of an atomic force microscope (AFM) to discriminate between boron (B), carbon (C) and nitrogen (N) atoms embedded at the centre of a GNR thanks to the differences in their van der Waals radii.

The ligand picks up the protons using a pendant amine, a small string of atoms containing nitrogen that dangle off the ligand.