Sentences with phrase «of electron transfer»

For fundamental research the key questions are related to the energetics and kinetics of electron transfer processes at interfaces.

Because they can now follow transient species formed as a result of electron transfer among communities in real time, Yu and her team are using this approach to study how microbial communities communicate with one another.

Dr. El - Naggar has increased our understanding of electron transfer focusing on bacterial nanowires, and is working to develop new nanomaterials and tools for energy conversion.

Bengt Nordéns contribution to form a strong research school in Gothenburg has been successful: as many as 12 out of his about 50 former PhD students and postdocs have become professors, abroad or at other Swedish universities, and three have returned to contribute a forceful environment with their own profiles within the Department: Prof Bo Albinsson (femtosecond spectroscopy and fundamentals of electron transfer), Prof Per Lincoln (new transition - metal - based DNA ligands and statistical mechanics for gene targeting), Prof Björn Åkerman (fundamentals and applications of DNA physical chemistry).

«Does the failure of electron transfer lead to the disease, or does the disease cause the breakdown of electron transfer?»

It consists of electron transfer to the originally ionized Ne atom matched by energy transfer away from the Ne, which leads to ionization of the second Kr atom nearby.

Not exact matches

Customer Service: English, Spanish, French, German, Russian, Arabic, Portuguese / Live Chat / [email protected] Languages: English, French, German, Spanish, Portuguese, Russian, Arabic Option Types: High / Low, 60 seconds, Above / Below, Touch / No Touch and Range, Pair options Assets: Currencies, Stocks, Indices, Commodities Expiry Times: 30 sec / 60 sec / 2 min / 5 min / 15 min / 30 min / 1 hour / End of the day Deposits and Withdrawals: Visa, Mastercard, Bank Wire, Skrill, iDeal, Maestro, Visa Electron, Ukash, WebMoney, Bank transfer Withdrawal Time: 2 - 3 bank days Demo account: No

Depositing and withdrawal of funds is easy too, and traders are offered a variety of options to choose from when making deposits; Wire Transfer, Credit / Debit Card [Maestro UK / Siwtch, Diners, Visa Electron, MasterCard, Delta, Maestro, Visa, Solo and Amex] and Skrill [also known as Moneybookers.

Even the fact that at the lower end the holons dissolve «in the indeterminacy of the Janus - faced electron» (above, p. 65) does not overcome the threat of reductionism to human freedom; for Koestler knows that the «indeterminacy of the micro-level can not be transferred....

This creates just enough collisions to allow electrons to exchange from one to the next until they reach the end of the nanowire and transfer to the rock or metal surface.

«Strings of electron - carrying proteins may hold the secret to «electric bacteria»: The nanowire structure and electron transfer process of a unique bacterium could provide a foundation for sustainable energy.»

A beam of electrons was first observed to be accelerated with a «gradient» — or energy transfer rate — of 300 MV / m, which is very high for present - day accelerators, in a device rather like a microchip.

Another strategy is to make alternative versions of terminal oxidases, enzymes in the membrane that transfer electrons to oxygen, which use oxygen more efficiently or are better at scavenging oxygen when its concentration is low.

In the electrical currents that flow in the microcircuits of today's gadgets, the electrons behave like particles and follow classical, predictable laws of heat transfer.

This compound mediates the transfer of electrons from the biological membranes to the electrical circuit, enabling the creation of an electric current in the cell.

The transfer of electrons during a chemical reaction in lead - acid car batteries produces a potential of more than 2 volts.

The scheme of oxidases action is simple: transferring electrons to molecular oxygen, reducing equivalents are oxidized again, and as a result «the energy currency» of the cell — the proton - moving force is generated.

Elementary chemistry distinguishes two kinds of strong bonds between atoms in molecules: the covalent bond, where bonding arises from valence electron pairs shared between neighboring atoms, and the ionic bond, where transfer of electrons from one atom to another leads to Coulombic attraction between the resulting ions.

«At the end of the day, the key in this study is really the velocity of the response — how fast the electrons transfer across the sediments,» Reguera says.

In contrast, the coordinated, marching - band - like motion of electrons in vanadium dioxide is detrimental to heat transfer as there are fewer configurations available for the electrons to hop randomly between.»

«Strong and frequent collisions of the oxygen ions induce electron transfer to neighboring empty cages.

In the studied model system, X-rays produce the doubly - charged particle (Ne2 +), which catches an electron from one of the neighboring atoms (Kr), transferring the energy to the other and releasing another electron.

At the same time, the energy transferred to the neighbouring atom knocks a loosely bound electron out of it.

Another hypothesis holds that the liberated energy is transferred to the electrons of the surface molecules, raising them to a higher energy level or exciting them.

When the researchers exposed R. ferrireducens to a solution of glucose in a chamber containing a graphite electrode they found that when the bacterium fed on the sugar, it transferred electrons directly to the electrode, producing a current.

Spin transfer torque is the transfer of the spin angular momentum from conduction electrons to the magnetization of a ferromagnet and enables the manipulation of nanomagnets with spin currents rather than magnetic fields,» explained Gyung - Min Choi, who recently completed his PhD in materials science and engineering at Illinois.

This pulse is only some tenths of a trillionth of a second long and transfers energy to the electrons in the molecule, exciting them into helical motion.

By demonstrating the presence of such coherence resulting from a capture of an incoherent electron, Prof. Krishnakumar and co-workers have shown that such coherence can also stem from the transfer of more than one value of angular momentum quanta.

For the power cord, they used bacterial and plant ferredoxin, an iron and sulfur protein that brings about electron transfer in a number of reactions.

Quantum teleportation enables two partners, Alice and Bob, to transfer the delicate quantum state of one particle such as an electron to another.

This field also causes electrons in a nearby coil of wires to oscillate, thereby transferring power wirelessly.

In the current issue of Journal of Chemical Physics, Benjamin Freyer, Flavio Zamponi, Vincent Juve, Johannes Stingl, Michael Woerner, Thomas Elsaesser and Majed Chergui report the first in - situ x-ray imaging of electron and atom motions induced by such an electron transfer excitation.

To the big surprise of the researchers, the time - dependent «electron maps» reveal a transfer of electronic charge not only from the Fe atoms to the bipyridine units but — so far unknown — an even larger amount of electronic charge from the PF6 - counterions to the bipyridine units.

Researchers will now have a better sense of what is happening at the catalyst surface and an appreciation for the role of proton and electron transfer processes in this chemistry.

Modern electronics is based on the use of electrons as information carriers, but they have ceased to meet the contemporary requirements: standard electrical copper wires and channels on chips can not transfer information with speeds sufficient for modern microprocessors.

«Neighbors move electrons jointly: Ultrafast collective electron transfer after excitation of single electron.»

The role of the semiconductor was to assist the transfer of electrons from the methanol to the polymer.

Chemin and his colleagues, meanwhile, have shown that the interaction can go both ways: In the 28 August Physical Review Letters, they report that tellurium nuclei primed with the right amount of energy can transfer it to electrons, which in turn give up photons.

I already mentioned dye - sensitized solar cells, which is about trying to improve the efficiency of charged transfer of an electron going from a molecule into a semiconductor.

In the case of the negative ion source, the small amount of cesium is injected into the ion source and the cesium - adsorbed surface of the so - called «plasma electrode» become activated to transfer the electron to hydrogen atoms and hydrogenous positive ions that are colliding on the surface.

After photo - excitation of the conjugated polymer with light of energy greater than the π - π * gap, an electron transfer to the C60 molecule is initiated.

Evidence for photoinduced electron transfer from the excited state of a conducting polymer onto buckminsterfullerene, C60, is reported.

«We have shown that carbon nanotubes promote the conversion of light energy into electron transfer within the chloroplasts,» Giraldo explains.

The mostly likely explanation is that the carbon nanotubes absorb more sunlight and donate electrons to the photosynthetic process, according to Giraldo and the rest of the team, or the nanotubes may be speeding up the transfer of electrons within the photosynthetic processes.

In this chapter she describes models for oxygen carriers, electron - transfer proteins, rubredoxins, various enzymes and others, and how they might help the chemist to understand better the role of iron in nature.

Nor did the situation improve when both types of microbes were put together into this solution of their favorite foods, suggesting the organisms lacked the ability to directly transfer electrons between them.

«Microbes use conductive minerals as electric wires for transferring electrons between each other,» says microbiologist Kazuya Watanabe of the Tokyo University of Pharmacy and Life Sciences, part of the team that performed the research.

Lovett and his colleagues have shown that quantum information can be transferred from an electron's spin to the spin of an atomic nucleus, where it can be stored more effectively — creating a form of «quantum memory».

Regardless of the mode of energy transfer, one electron is ejected from the helium atom.

«The direct growth of anchored MoSoy nanocrystals on graphene sheets may enhance the formation of strongly coupled hybrid materials with intimate, seamless electron transfer pathways, thus accelerating the electron transfer rate for the chemical desorption of hydrogen from the catalyst, further reducing the energy required for the reaction to take place,» Sasaki said.