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Mostrando 261 - 280 Resultados de 723 Para Buscar '"Sabre"', tiempo de consulta: 0.11s Limitar resultados
  1. 261
    “…Taken together, these results support the potential utility of rational design at molecular, mesoscopic, and macroscopic/engineering levels for improving SABRE and HET-SABRE (heterogeneous-SABRE) for applications varying from fundamental studies of catalysis to biomedical imaging.…”
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    Nanoscale Catalysts for NMR Signal Enhancement by Reversible Exchange
  2. 262
    “…The signal amplification by reversible exchange (SABRE) technique is a very promising method for increasing magnetic resonance (MR) signals. …”
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    SQUID-based ultralow-field MRI of a hyperpolarized material using signal amplification by reversible exchange
  3. 263
    “…It was demonstrated that the interplay between SABRE and hPHIP can be manipulated. Specifically, it was found that the hPHIP effect could be almost completely suppressed, while stable SABRE was observed in subsequent consecutive experiments. …”
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    Deactivation of catalysts in simultaneous reversible and irreversible parahydrogen NMR signal enhancement, and the role of co-ligands in the stabilization of the reversible method
  4. 264
    “…A PLS-DA scatter plot showed two clusters separating the ‘Peach’ and ‘Sabre’ mango juice fermented with L75 from the rest. …”
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    Influence of Lactic Acid Bacterium Strains on Changes in Quality, Functional Compounds and Volatile Compounds of Mango Juice from Different Cultivars during Fermentation
  5. 265
    “…Signal Amplification by Reversible Exchange (SABRE) is a catalytic method for improving the detection of molecules by magnetic resonance spectroscopy. …”
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    Hyperpolarisation of weakly binding N-heterocycles using signal amplification by reversible exchange
  6. 266
    “…The first example of an aldehyde hyperpolarised using SABRE is demonstrated and we work towards novel real-world applications of SABRE-hyperpolarised NMR for chemical analysis.…”
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    Hyperpolarised NMR to aid molecular profiling of electronic cigarette aerosols
  7. 267
    “…In this study, we systemically applied SABRE to a series of nitrile compounds, which have been rarely investigated. …”
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    Hyperpolarization of Nitrile Compounds Using Signal Amplification by Reversible Exchange
  8. 268
    “…In particular, recent examples of novel ruthenium catalysts for trans and geminal hydrogenation, metal-free catalysts, iridium sulfoxide-containing SABRE systems, and cobalt complexes for PHIP and SABRE are reviewed. …”
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    Advancing homogeneous catalysis for parahydrogen-derived hyperpolarisation and its NMR applications
  9. 269
    “…When compared to the other two juices, ‘Sabre’ and ‘Peach’ MJs fermented with L75 showed the highest IC(50) values for DPPH and ABTS. …”
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    The Bioaccessibility and Antioxidant Activities of Fermented Mango Cultivar Juices after Simulated In Vitro Digestion
  10. 270
    “…The findings showed that the main fixation in foil and sabre is the upper torso, while in epee, it is the lower torso. …”
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    Visual Search Strategies of Elite Fencers: An Exploratory Study in Ecological Competitive Situation
  11. 271
    “…However, while SABRE-active in ethanol solutions, the catalyst lost activity in >50% water. …”
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    Aqueous NMR Signal Enhancement by Reversible Exchange in a Single Step Using Water-Soluble Catalysts
  12. 272
    “…When applied to a range of fluoropyridines, SABRE-SHARPER achieves overall signal enhancements of up to 5700-fold through the combined effects of hyperpolarization and line-narrowing. …”
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    Enhancing (19)F Benchtop NMR Spectroscopy by Combining para-Hydrogen Hyperpolarization and Multiplet Refocusing
  13. 273
    “…This research opens up new opportunities in a field in which SABRE has hitherto primarily been conducted in CD(3)OD. …”
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    A New Ir‐NHC Catalyst for Signal Amplification by Reversible Exchange in D(2)O
  14. 274
    “…Quality of the SABRE BP results was preserved relative to the rank order of subjects by manual methods. …”
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    Comparison of manual and semi-automated delineation of regions of interest for radioligand PET imaging analysis
  15. 275
    “…[Image: see text] The hyperpolarization (HP) method signal amplification by reversible exchange (SABRE) uses para-hydrogen to sensitize substrate detection by NMR. …”
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    Iridium(III) Hydrido N-Heterocyclic Carbene–Phosphine Complexes as Catalysts in Magnetization Transfer Reactions
  16. 276
    “…Also RF‐spin locking (SABRE‐SLIC) enables transfer of hyperpolarization to (15)N. …”
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    Reversible Parahydrogen Induced Hyperpolarization of (15)N in Unmodified Amino Acids Unraveled at High Magnetic Field
  17. 277
    “…[Image: see text] Activation of a catalyst [IrCl(COD)(IMes)] (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene; COD = cyclooctadiene)] for signal amplification by reversible exchange (SABRE) was monitored by in situ hyperpolarized proton NMR at 9.4 T. …”
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    Irreversible Catalyst Activation Enables Hyperpolarization and Water Solubility for NMR Signal Amplification by Reversible Exchange
  18. 278
    “…Signal amplification by reversible exchange (SABRE) and SABRE in Shield Enables Alignment Transfer to Heteronuclei (SABRE-SHEATH) of selected DNA nucleobases is demonstrated with the enhancement (ε) of (1)H, (15)N, and/or (13)C spins in 3-methyladenine, cytosine, and 6-O-guanine. …”
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    Hyperpolarizing DNA Nucleobases via NMR Signal Amplification by Reversible Exchange
  19. 279
    “…To overcome the low signal-to-noise ratio that usually hampers a wider application, we present here an alternative approach to ULF NMR, which makes use of the hyperpolarizing technique signal amplification by reversible exchange (SABRE). In contrast to standard parahydrogen hyperpolarization, SABRE can continuously hyperpolarize 1 H as well as other MR-active nuclei. …”
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    SQUID-based detection of ultra-low-field multinuclear NMR of substances hyperpolarized using signal amplification by reversible exchange
  20. 280
    “…In this work, we illustrate the potential of using (19)F‐containing ligands as future magnetic resonance imaging (MRI) contrast agents and as probes in magnetic resonance spectroscopy studies by significantly increasing their magnetic resonance detectability through the signal amplification by reversible exchange (SABRE) hyperpolarization method. We achieve (19)F SABRE polarization in a wide range of molecules, including those essential to medication, and analyze how their steric bulk, the substrate loading, polarization transfer field, pH, and rate of ligand exchange impact the efficiency of SABRE. …”
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    Extending the Scope of (19)F Hyperpolarization through Signal Amplification by Reversible Exchange in MRI and NMR Spectroscopy
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