Sentences with phrase «water molecules around»

While some theories point to polarizability and ion size, Saykally and his colleagues used femtosecond laser spectroscopy to examine water molecules around simple ions.

First, the water molecules around the hydroxide ion bounced around, positioning and creating hydrogen bonds with the hydroxide.

Mavrikakis, assistant scientist Guowen Peng and Ph.D. student Carrie Farberow, along with researchers at Aarhus University in Denmark and Lund University in Sweden, investigated how hydroxyls affect water molecules around them, and how that differs from water molecules contacting a pristine metal oxide surface.

When the common salts are dissolved in water, they always form a «shell» of water molecules around the salts molecules.

Not exact matches

Micelles are specialized collections of molecules that allow fat - soluble substances (like beta - carotene) to move around comfortably in non-fat environments (like our water - based bloodstream).

Plants are not like us with pumping mechanism that pushes our blood around, so water moves up the vessel by adhesion (being attracted to the side of the vessel) and cohesion (water molecules being attracted to each other).

As all the water molecules are clustered around the positively charged sodium cations in a hydrate envelope in this liquid, there are virtually no unbound water molecules left.

Since water molecules are constantly dancing around with thermal energy, the likelihood of enough water molecules happening by chance to strike this collective pose is exceedingly low, even at much colder temperatures.

The electrostatic forces between calcium and water induce the water molecules to rearrange themselves around the ion.

In the icy bodies around our solar system, radiation emitted from rocky cores could break up water molecules and support hydrogen - eating microbes.

The water - hating molecules are prevented from combining with their counterparts on other strings by the action of water - loving molecules, which form little pockets of protection around neighboring water - hating molecules.

Where the atmosphere has few aerosol particles — over the ocean, for instance — water molecules have fewer particles to condense around, so cloud droplets are large.

The researchers note that in such a thin layer, the water molecules can't move around very much, and so their effective temperature is much lower than — 17 °C, perhaps close to — 45 °C, the proposed phase transition between HDL and LDL water.

When more aerosols are added to the air, like from ship exhaust, water molecules have more particles to collect around.

And Dubochet discovered how to freeze water around molecules so rapidly that it couldn't create crystals that would disrupt the electron beams and distort the images.

In a biological system, a lot of water molecules are flexibly arranged around the biologically functional molecules, without strongly binding to them.

That's because oxygen and water molecules evaporating from the rings funnel particles into the space around the planet.

Until now, the instruments used to monitor the water around the spill have not been able to adequately detect PAHs and related long - lasting toxic molecules, he says.

The fruit and ice acted as the seed in your supercooled water, and gave the water molecules something to crystalize around.

Background When water is warm or even room temperature, its molecules are moving around, bumping into one another.

As a result, there wasn't anything in the water for the molecules to crystallize around.

When water is warm or room temperature, those molecules move around, bouncing off one another and the sides of the cups.

But, for a handful of the planets around TRAPPIST - 1, there's not enough UV radiation to destroy the water molecules.

De Leeuw's team created computer models of dust grains made of olivine, a common mineral both in our solar system and in the dusty nebulae around other stars, and calculated what happened when water molecules attached themselves to the irregular surfaces of these fluffy grains.

The area just around it thereby cools and freezes water molecules to the ice cube, also freezing the string on.

These water molecules don't sit still — they wiggle and move around all the time.

The researchers inserted molecules of the amino acid tryptophan into the protein as a probe, and measured how water moved around it.

Water molecules typically flow around each other at picosecond speeds, while proteins fold at nanosecond speeds — 1,000 times slower.

The catalyst acts as a chemical handler, shuffling around the water molecules» assets — electrons, hydrogen ions (protons), and oxygen atoms — to get the reaction to happen.

Our work has shown that this simple picture works quantitatively in some cases with a homogeneous surface, for instance water molecules surrounding small sugar molecules, but breaks down in other cases, for instance hydration water around crowded proteins.

Whereas the first is explained by H - bond with the proteins, the retarded hydrogen bond dynamics around hydrophobic residues is at first glance surprising and can be explained by the additional imposed steric constraints on the water molecules at hydrophobic sites.

Some of the electronic charge on the chloride ion (Cl --RRB- ends up on the water molecules in the first solvation shells around the chloride and sodium ions, with the waters around sodium being the most negative — the waters effectively act as an electronic sink.

«We could see water molecules and a belt of lipids around the protein, which was really transformative,» says Gonen, who also worked with Piotr Sliz to initiate the use of molecular replacement to phase electron diffraction data.

The scientists were able to determine how water interacts with various uranium - containing species and the structure water adopts around the molecules, which affects diffusion rates.

Results with small, electrically charged cyanide ions and water molecules reveal that water zips around ions to a greater extent than expected.

The simulations showed how water molecules floating around in the supercritical carbon dioxide self - organize in a film and dissolve part of the anorthite surface along the way.

It also lets us know how common exoplanets are in the habitable regions around stars, where the temperatures are not too hot and not too cold, where liquid water can exist, and complex molecules may have figured out the processes we call life.

Coaxed out of the carbon dioxide liquid, even at the low concentrations of 1 water molecule for every 10,000 carbon dioxides, the water forms an extremely thin layer around the target mineral, in this case, anorthite.

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The researchers analyzed the resulting simulations and determined that when chloride or iodide ions were added into bulk water, the molecules formed a cage or solvation shell around the ion.

No longer free to jiggle around and transfer heat via this large scale motion, water molecules in the layer are forced together and heat is only able to travel through the skin layer by way of conduction.

When an icy impact occurred, the impactor's kinetic energy became heat energy, instantly melted some ice, gouged out a crater, and kicked up into Mars» thin atmosphere large amounts of debris mixed with water (liquid, ice crystals, and vapor)-- and complex organic molecules that obviously came recently from life.127 Then, the dirt and salt - water mixture settled back to the surface in vast layers of thin sheets — strata — especially around the crater.

The snappily - named planet lies around 124 light years — a mere 729 trillion miles — from Earth in the Cygnus constellation and in 2014 scientists detected water molecules on its surface.

«Here we report the detection of water vapour around Ceres, with at least 1026 molecules being produced per second, [13 pounds / sec] originating from localized sources that seem to be linked to mid-latitude regions on the surface.»

Water may be more common than expected at extreme depths approaching 640 kilometres and possibly beyond — within Earth's lower mantle, says a study that explored microscopic pockets of a trapped form of crystallised water molecules in a sampling of diamonds from around the wWater may be more common than expected at extreme depths approaching 640 kilometres and possibly beyond — within Earth's lower mantle, says a study that explored microscopic pockets of a trapped form of crystallised water molecules in a sampling of diamonds from around the wwater molecules in a sampling of diamonds from around the world.

Water molecules float around in every room in your home.

However, water molecules aren't the only invisible substance hiding all around you.

Micelles are specialized collections of molecules that allow fat - soluble substances (like beta - carotene) to move around comfortably in non-fat environments (like our water - based bloodstream).

However, the amount of time that any individual water molecule is in the atmosphere (the lower part at least) is around 10 days.

Most of the remaining 82 % is radiated by water vapour molecules from various heights in the atmosphere (depending on wavelength) and the surface of the earth (particularly at wavelengths around 10 micron where the atmosphere is almost transparent).