IonsNitroneElectronAdductsPhysicsElectronsFree RadicalsRadicalSuperoxideReagentAtomsDMPOBosonsPrecessionIsingInteractionsMoleculesSemiconductorExperimentsMagneticPitfallsQuantum simulationsOrganicTechniqueSystemsModifying the quantumAtomicAdditionDistinctiveNewsSingleStateSpaceSmallSystemLightSeriesDigital
Ions4
- Trapped ions represent one of the most promising quantum platforms for digital quantum computation and simulation, enabling the future study of quantum systems that are intractable for classical computers. (tsinghua.edu.cn)
- 4) Dr. Lamata is one of the pioneers on the topic of quantum simulations of relativistic quantum systems in trapped ions, having also been at the core of the proposals for simulating fermionic interactions, fermions coupled to bosons, and quantum field theories, in trapped ions. (tsinghua.edu.cn)
- More detailed information of completely dehydrated alkali ions (usually K+ or Na+) about the internal ions can be obtained by measuring the coordinated to the buried carbonyl oxygens of the nucleotide spin relaxation rate(s) over a wide range of resonance bases. (lu.se)
- 7 ) and Tl+ ( 8 ) ions have been quadruplexes formed by the oligodeoxyribonucleotides used as a spin-1/2 surrogates for the similarly sized K+ ion, d(G3T4G3) (abbreviated Q3) and d(G4T4G4) (abbreviated Q4). (lu.se)
Nitrone3
- The most commonly used spin traps are alpha-phenyl N-tertiary-butyl nitrone (PBN) and 5,5-dimethyl-pyrroline N-oxide (DMPO). (wikipedia.org)
- A common method for spin-trapping involves the addition of radical to a nitrone spin trap resulting in the formation of a spin adduct, a nitroxide-based persistent radical, that can be detected using EPR. (wikipedia.org)
- The spectra are typical of superoxide adducts (almost no features of the HO center dot adduct that usually forms with time for other nitrone spin traps such as DMPO) and we show that at 250 mu M, the new spin trap enables the reliable detection of superoxide by 1 scan at the position opposite to the corresponding spin trap without the CD moiety. (hal.science)
Electron14
- Spin trapping is an analytical technique employed in chemistry and biology for the detection and identification of short-lived free radicals through the use of electron paramagnetic resonance (EPR) spectroscopy. (wikipedia.org)
- We have undertaken electron paramagnetic resonance and spin trapping investigations of the photochemistry of kynurenine (KN), a natural component of the human eye and close analog of the principal chromophore in the young human lens 3-OH-kynurenine O-glucoside (3HKG). (nih.gov)
- In their paper, the researchers display using floor acoustic waves for on-chip management of electron spins in silicon carbide, a semiconductor, which is able to exchange silicon in lots of functions requiring high-power electronics, as an example, in electrical autos. (myspaceastronomy.com)
- These optical transitions play a basic function: they permit the optical detection of the spin state by registering the sunshine quanta emitted when the electron returns to the bottom state. (myspaceastronomy.com)
- Due to a large interplay between the periodic vibrations of the crystal lattice and the electrons trapped within the color centers , the scientists understand simultaneous management of the electron spin by the acoustic wave, in each its floor and excited state. (myspaceastronomy.com)
- Now, since the amount of time spent by the color center in the excited state is random, the large difference in the alignment of the precession axes in the ground and excited states changes the orientation of the electron spin in an uncontrolled way. (myspaceastronomy.com)
- Under this particular situation, the quantum info saved within the electron spin turns into decoupled from the jumps between floor and excited state brought on by the laser. (myspaceastronomy.com)
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- Electron spin resonance spectroscopy (esr) and spin trapping techniques were applied to evaluate the ability of betanin to scavenge hydroxyl, superoxide, 2,2. (afore.org.mx)
- The cap showed the highest fe content The idea is the same whether you go for online or offline storage, free radical scavenging assay by electron spin resonance spin-trapping technique. (afore.org.mx)
- Electron spin resonance spectroscopy (ESR) confirmed the generation of hydroxyl radicals under strongly acidic conditions. (elsevierpure.com)
- 02 based FR were measured by electron spin resonance technique using a PBN trap. (cdc.gov)
Adducts9
- The identity of the radical can be inferred based on the EPR spectral profile of their respective spin adducts such as the g value, but most importantly, the hyperfine-coupling constants of relevant nuclei. (wikipedia.org)
- The groups of London, and Berliner & Khramtsov have used NMR to study such adducts and Timmins and co-workers used charge changes upon DBNBS trapping to isolate protein adducts for study. (wikipedia.org)
- When a spin trap is added to a free radical-generating biochemical reaction, a growing pool of relatively long-lived spin adducts is created as the free. (afore.org.mx)
- Spin trapping coupled with ESR is a method of choice to characterize these species in chemical and biological systems and the metabolic stability of the spin adducts derived from reaction of superoxide and hydroxyl radicals with nitrones is the main limit to the in vivo application of the method. (biologic.net)
- Recently, new cyclic nitrones bearing a triphenylphosphonium or permethylated β-cyclodextrin moiety have been synthesized and their spin adducts demonstrated increased stability in buffer. (biologic.net)
- The kinetics of disappearance of the spin adducts were analyzed using an appropriate simulation program. (biologic.net)
- Our results highlight the interest of the new spin trapping agents CD-DEPMPO and CD-DIPPMPO for specific detection of superoxide with high stability of the superoxide adducts in the presence of liver microsomes. (biologic.net)
- EPR spectroscopy allowed us to estimate the half-life of the superoxide spin adducts which is close to the value previously reported for CD-DEPMPO (t(1/2) approximate to 50-55 min under the conditions investigated). (hal.science)
- Bulk nanobubbles were expected to be the source of the spin-adducts of hydroxyl radicals. (elsevierpure.com)
Physics1
- The challenge here is to develop efficient methods to control the magnetic quantum property of electrons, or, in this case, their spin states," Dr. Georgy Astakhov from HZDR's Institute of Ion Beam Physics and Materials Research explains. (myspaceastronomy.com)
Electrons3
- The quantum info is saved as a well-defined path of the spin of the electrons trapped within the colour middle, represented by the arrow. (myspaceastronomy.com)
- The introduction of 3 d and mixed 3 d -4 f electrons could lead to a high ground-state spin magnitude. (nature.com)
- Trapping single electrons and spins. (tum.de)
Free Radicals1
- Spin trapping is tool used in the study of transient free radicals. (afore.org.mx)
Radical10
- However, when the half-life of radicals is too short to detect with EPR, compounds known as spin traps are used to react covalently with the radical products and form more stable adduct that will also have paramagnetic resonance spectra detectable by EPR spectroscopy. (wikipedia.org)
- More rarely, C-nitroso spin traps such as 3,5-dibromo-4-nitrosobenzenesulfonic acid (DBNBS) can be used: often additional hyperfine information is derived, but at a cost of specificity (due to facile non-radical addition of many compounds to C-nitroso species, and subsequent oxidation of the resulting hydroxylamine). (wikipedia.org)
- The spin adduct usually yields a distinctive EPR spectrum characteristic of a particular free radical that is trapped. (wikipedia.org)
- Unambiguous assignments of the identity of the trapped radical can often be made by using stable isotope substitution of the radicals parent compound, so that further hyperfine couplings are introduced or altered. (wikipedia.org)
- The free radical trapping agent N-tert. (wikipedia.org)
- Users may search the database using any combination of several fields of data such as Spin Trap Agent, radical molecule, solvent, text keywords, and hyperfine splittings of nuclei. (nih.gov)
- The 13-pro(S) -hydrogen is abstracted and dioxygen traps the pentadienyl radical at carbon 11. (wikipedia.org)
- 3) small amounts of oxidation products are formed due to the oxygen trapping of an allylic radical intermediate at positions 13 and 15. (wikipedia.org)
- The 31P NMR-spectroscopy-based spin trap technique involving 5-diisopropoxy-phosphoryl-5-methyl-1-pyrroline-N-oxide (DIPPMPO) was used to achieve quantitative analyses of the radical species that are generated in different bleaching solutions. (unive.it)
- 1985. Spin-trapping of methyl radical in the oxidative metabolism of 1,2-dimethylhydrazine. (cdc.gov)
Superoxide3
- 5-Diisopropoxyphosphoryl-5-methyl-1-pyrroline-N-oxide (DIPPMPO) spin trapping has been used in measuring superoxide production in mitochondria. (wikipedia.org)
- This chapter discusses spin-trapping methods for detecting superoxide and. (afore.org.mx)
- Three new DEPMPO-based spin traps have been designed and synthesized for improved superoxide detection, each carrying a cyclodextrin (CD) moiety but with a different alkyl chain on the phosphorus atom or with a long spacer arm. (hal.science)
Reagent1
- Spin trap reagent. (sigmaaldrich.com)
Atoms3
- We consider a partially spin-polarized atomic Fermi gas in a high-aspect-ratio trap, with a flux of predominantly spin-up atoms exiting the center of the trap. (princeton.edu)
- We report optical pumping of cold cesium atoms trapped in a magneto-optical trap (MOT). (korea.ac.kr)
- We use the trapping light of the MOT to pump the atoms to the 6S 1/2 , F = 3 state. (korea.ac.kr)
DMPO2
- A major advance has been the development of anti-DMPO antibodies by Mason's group, allowing study of spin trapping reactions by a simple immuno-based techniques. (wikipedia.org)
- 5,5-Dimethyl-1-pyrroline N-oxide (DMPO) was employed as a spin trap. (nih.gov)
Bosons1
- I will review our recent proposals for the digital quantum simulations of spins, fermions, and fermions coupled to bosons, with trapped-ion quantum platforms. (tsinghua.edu.cn)
Precession3
- Anybody who played as a child with a spinning top experienced precession as a change in the orientation of the rotational axis while trying to tilt it. (myspaceastronomy.com)
- An electronic spin can be imagined as a tiny spinning top as well, in our case with a precession axes under the influence of an acoustic wave that changes orientation every time the color center jumps between ground and excited state. (myspaceastronomy.com)
- In their work, the researchers present a option to forestall this: by appropriately tuning the resonant frequencies of the colour middle, the precession axes of the spin within the floor and excited states turns into what the scientists name collinear: the spins hold their precession orientation alongside a well-defined path even once they bounce between the bottom and excited states. (myspaceastronomy.com)
Ising2
- We benchmark for a nonintegrable spin-1/2 transverse and longitudinal Ising chain with N=53 sites using tensor-network techniques. (mpg.de)
- 1) ij in terms of binary variables (or Ising spins, as used in magnetic models), si=±1 (in some contexts, equivalent 0, 1-spins are preferred), with symmetric weights wij. (lu.se)
Interactions2
- Frustration occurs when spins in the system cannot find a simple ordered spin configuration to fully satisfy all the interactions with other spins [1,2]. (georgetown.edu)
- Fourteen years later, Seth Lloyd proved that an array of spins with tunable interactions indeed represents a universal quantum simulator 2 . (nature.com)
Molecules1
- A comprehensive list of Spin Trapping molecules is maintained by the IUPAC. (wikipedia.org)
Semiconductor1
- Our lectures continue to discuss the growth of ultrapure quantum materials, and top-down nanostructuring methods to provide us with an understanding of methods for controlling and reading the quantum state of individual spin-qubits in semiconductor heterostructures. (tum.de)
Experiments2
- The Spin Trap Database is a database of more than 10,000 records of published Spin Trapping experiments. (nih.gov)
- We offer this as a possible explanation for the quantitative discrepancies in recent experiments on spin-imbalanced unitary Fermi gases. (princeton.edu)
Magnetic1
- Such networks resemble statistical models of magnetic systems ("spin glasses"), with an atomic spin state (up or down) seen as analogous to the "firing" state of a neuron (on or off). (lu.se)
Pitfalls1
- Immuno-spin trapping from biochemistry to medicine: advances, challenges, and pitfalls. (bvsalud.org)
Quantum simulations1
- Dynamically controlled spin chains can realize analog quantum simulations and digital quantum computations. (nature.com)
Organic2
- Due to the couplings among the charge, orbit, spin, and phonon in organic ferromagnetic materials, magnetoelectric, and optomagnetic couplings have been realized and observed. (nature.com)
- Hopefully, the understanding of magnetoelectric and optomagnetic couplings could provide guidance for the further development of organic spin optoelectronics. (nature.com)
Technique1
- The sod-like activity of several biological substances was evaluated by an esr spin-trapping technique. (afore.org.mx)
Systems1
- This spin trap-based approach was also applied, with modifications, to the study of bleaching systems of human hair. (unive.it)
Modifying the quantum1
- Under the impact of a floor acoustic wave, the spin modifications its orientation, thus modifying the quantum info saved within the colour middle. (myspaceastronomy.com)
Atomic1
- We developed a sensitive way to measure the atomic distribution among the Zeeman sublevels to find the resulting spin polarization of the sample. (korea.ac.kr)
Addition1
- This reputation for dependability and versatility prevails in the all-new Stradic FM, the newest addition to Shimano's CoreSolid lineup of spinning. (tackletrap.com)
Distinctive1
- The way Kevin Amed is able to ingeniously present a fresh new perspective with his unique brand of Latin trap that consists of a distinctive blend of hip-hop and Latin influence is the mark of a consummate engineer. (dailymusicspin.com)
News1
- We see an Organization that recognizes when multimillion dollar investments are not working, and, rather than spin the news or fall silent and hope staff simply stop bothering to complain and accept or ignore a failed initiative, that this Organization actively encourages open discussion and dialogue. (who.int)
Single1
- This behavior can be understood by viewing two consecutive synchronous updates of the N spins as a single sequential update of a system of 2N spins, {xi, yi}, where first the x are updated based on y (as xi = sgn j wijyj), and then the y based on the new x. (lu.se)
State2
- Increasing the ground-state spin magnitude is regarded as an effective way to obtain a high effective energy barrier U eff 23 . (nature.com)
- For Mn ion-based magnets, [Mn 12 O 8 X 4 (O 2 CPh) 8 (HMP) 6 ] possesses a novel structure with a ground-state spin magnitude of 7 41 . (nature.com)
Space1
- The researchers will be using the RemoveDEBRIS satellite to test a new navigation system and another way of trapping space trash: a harpoon that can directly spear objects . (technologyreview.com)
Small3
- Small mammal trappings were carried out in 9 sites within three zones namely, peri-urban, peri-rural and protected areas. (who.int)
- Liver, lung and kidney tissues from trapped small mammals were sampled in accordance with the recommended conditions of biosafety and bioethics. (who.int)
- Out of 4930 night-traps, 256 (5.19%) small mammals were trapped including Crocidura , Rattus, Lophuromys, Praomys, Mus and Mastomys . (who.int)
System1
- Attempting to iterate Equation 2 in synchrony would not necessarily yield convergence to a local minimum - the system may wind up in a two-cycle instead, with a subset of the spins flipping signs in every update. (lu.se)
Light1
- A spin-off manga based on the light novel series Trapped in a Dating Sim: The World of Otome Games is Tough for Mobs (Otome Game Sekai wa Mob ni Kibishii Sekai Desu) is going to release the next issue on June 9. (animeindia.in)
Series1
- Daiwa's premier spinning reel series sets the standards for corrosion resistant reels. (tackletrap.com)
Digital1
- This change renders the quantum info saved within the digital spin to be misplaced after a number of jumps. (myspaceastronomy.com)