Sentences with phrase «use hydrogen bonds»

Unlike other healable materials that use hydrogen bonds, boron nitride nanosheets are impermeable to moisture.

«It opens the doors to using hydrogen bonds to make surfaces hydrophilic, or attracted to water, and to (template) these surfaces for the selective absorption of other molecules possessing fundamental similarities to water,» Mavrikakis says.

Not exact matches

In principle, the wave function, denoted by Greek letter psi, can be used to reveal these energy levels for any given atom or molecule, although in practice this has only been done for the very simplest — the hydrogen atom and molecule (made of two hydrogen atoms bonded together).

White's group is working on catalysts that can modify a wider range of amino acids, particularly those with electron - rich aromatic functionality, which compete with the carbon - hydrogen bonds for oxidation using the current catalyst.

VHTR plants could even produce hydrogen for fuel using high - temperature steam electrolysis, which breaks apart the bonds of water molecules; this process is 50 percent more energy - efficient than existing hydrogen production methods.

«Previous research used reversible hydrogen bonds to connect polymers to form a rubber but reversible bonds are intrinsically weaker than covalent bonds,» said Li - Heng Cai, a postdoctoral fellow at SEAS and corresponding author of the paper.

When the experiment was repeated using propanol — a larger alcohol with less hydrogen bonding in the mixture — optical distillation produced the same result as thermal distillation.

The researchers discovered that these catalysts — copper in the form of a white salt and the ligand as an oil — can oxidize C - H bonds in a very efficient way in combination with hydrogen peroxide, a reduced form of oxygen that nature uses.

Herein we demonstrate that a photoredox - mediated hydrogen atom transfer protocol can efficiently and selectively install deuterium (D) and tritium (T) at α - amino sp3 carbon - hydrogen bonds in a single step, using isotopically labeled water (D2O or T2O) as the source of hydrogen isotope.

«Hydrocarbons — compounds made out of carbon and hydrogen or having a carbon - hydrogen bond — are used in daily life all the time — from clothes to toothbrushes,» said Partha Basu, chair and professor of chemistry and biological chemistry at IUPUI.

Under normal conditions, the contact — or bond — used is with hydrogen.

Melanie Sanford, a chemist the University of Michigan, Ann Arbor, who focuses on using metal - based agents, primarily palladium, to catalyze reactions that substitute hydrogen in carbon - hydrogen bonds with other atoms or functional groups.

«Water could be the most abundant source of hydrogen if one could separate the hydrogen from its strong bond with oxygen in the water by using a catalyst.»

In a new paper published in Physical Review Letters, a team from Carnegie's Geophysical Laboratory examined the structure, bonding and electronic properties of highly compressed hydrogen using intense infrared radiation.

The researchers compared the effect of two different substrates on the growth of the phosphorene nanoflake — a copper substrate, commonly used for growing graphene, which bonds with the phosphorene through strong chemical processes, and a hexagonal hydrogen boron nitride (h - BN) substrate that couples with the phosphorene via weak van der Waals bonds.

They used a star - shaped molecule called AEEP (aminoethoxy ethanol substituted phosphazene), the arms of which act as dynamic and mobile hydrogen bonding plasticiser molecules while being connected to a central core, effectively preventing migration and leeching of the starch molecules from the resulting plastic.

Inside the AlloSphere, researchers such as Van de Walle use a joystick to maneuver through three - dimensional constellations of the oxygen, hydrogen and zinc atoms (linked by a complex lattice of chemical bonds) that make up these conductors.

Bond conceived the idea of using the ultracold liquid hydrogen fuel as a heat sink to take the excess heat out of the incoming air and use some of the hot air to support fuel combustion.

IBS scientists used a reaction based on lithium dissolved in ammonia, called the «Birch - type reaction,» to introduce hydrogen onto graphene through the formation of C - H bonds.

Hydrogen - bond acidic polymers are most widely used on acoustic wave sensors, which use sound waves in quartz chips to detect the vapors that are absorbed by the polymer.

We report on the use of the hydrogen bond acceptor properties of some phosphorus - containing functional groups for the assembly of a series of [2] rotaxanes.

In the article, Grate reviews the motivation and principles behind the use of hydrogen - bond acidic polymers, covering the period from their first uses on chemical sensors in 1986 to early 2007.

To solve the mystery, Wiedner and Bullock used newer techniques to show how the actors form bonds, trade electrons, and free hydrogen.

For instance, the calcium hydride molecular ion (made of one calcium ion and one hydrogen ion bonded together) used by NIST in their experiments has 100 possible rotational states.

The artificial leaf is essentially a silicon solar cell that has different catalytic materials bonded to each side that allow it to split water molecules into oxygen and hydrogen, the latter of which could be stored and used as clean fuel.