Mostrando 4,481 - 4,500 Resultados de 99,129 Para Buscar '" metal"', tiempo de consulta: 0.73s Limitar resultados
  1. 4481
  2. 4482
  3. 4483
    “…We report the synthesis of five dicarboxylic acid-substituted dipolar molecular rotors for the use as linker molecules in metal-organic frameworks (MOFs). The rotor molecules exhibit very low rotational barriers and decent to very high permanent, charge free dipole moments, as shown by density functional theory calculations on the isolated molecules. …”
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  4. 4484
    “…This paper reports the clinical case of a patient who sought dental care for a full metal-ceramic crown with a cast metallic core with reduced length that had been detached from tooth 24. …”
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  5. 4485
    “…Laser powder bed fusion (LPBF) is a 3D printing technology that can print metal parts with complex geometries without the design constraints of traditional manufacturing routes. …”
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  6. 4486
    “…[Image: see text] The remediation of metal and heavy metal contaminants from water ecosystems is a long-standing problem in the field of water management. …”
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  7. 4487
    “…Most heterogeneous catalysts for ammonia borane hydrolysis are nanoparticles containing expensive noble metals. Here, we show that metal ruthenate perovskites function as active and durable catalysts for ammonia borane hydrolysis. …”
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  8. 4488
    por Li, Luyao, Wong, Stanislaus S.
    Publicado 2018
    “…Therefore, it is absolutely necessary in the future to replace Pt either completely or in part with far more plentiful, abundant, cheaper, and potentially less toxic first row transition metals, because the high cost-to-benefit ratio of conventional catalysts is and will continue to be a major limiting factor preventing mass commercialization. …”
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  9. 4489
    “…[Image: see text] We studied the synthesis of nanocomposite materials consisting of noble metal clusters embedded in an oxide semiconductor matrix. …”
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  10. 4490
    por Xu, Huifang, Xu, David C., Wang, Yifeng
    Publicado 2017
    “…For a given complexing ligand (Lewis base) and a group of isovalent metal cations (Lewis acids), the stability constants of metal–ligand (ML) complexes can simply correlate to the known properties of metal ions [ionic radii (r(M(n+))), Gibbs free energy of formation (ΔG°(f,M(n+))), and solvation energy (ΔG°(s,M(n+)))] by 2.303RT log K(ML) = (α*(ML)ΔG°(f,M(n+)) – β*(ML)r(M(n+)) + γ*(ML)ΔG°(s,M(n+)) – δ*(ML)), where the coefficients (α*(ML), β*(ML), γ*(ML), and intercept δ*(ML)) are determined by fitting the equation to the existing experimental data. …”
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  11. 4491
    por Das, Tanmay, Haldar, Debasish
    Publicado 2017
    “…The material demonstrates rapid kinetics and is capable of dropping the toxic metal ion (Pb/Hg/Cd) concentration below 0.2 ppb within 10 min. …”
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  12. 4492
    “…[Image: see text] The first example of metal-free oxidative hydrolysis of hydrido-siloxanes is reported. …”
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  13. 4493
    “…Current methods for metal chelation are generally based on multidentate organic ligands, which are generated through cumbersome multistep synthetic processes that lack flexibility for systematically varying metal-binding motifs. …”
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  14. 4494
    “…We explore the physics of a two-metal plasmonic nanostructure consisting of metallic nanodiscs separated from a metallic back-reflector by a uniform thin polymer film and investigate the potential for vibrant structural colour in reflection. …”
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  15. 4495
    “…Inspired by versatile metal-based nanomaterials, great efforts have been devoted to developing nanomaterials with high-Z metal elements as radiosensitizers by depositing more energy into tumors for RT enhancement. …”
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  16. 4496
    “…Metal ligand cooperativity (MLC) and frustrated Lewis pair (FLP) chemistry both feature the cooperative action of a Lewis acidic and a Lewis basic site on a substrate. …”
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  17. 4497
  18. 4498
    por Jiang, Nan, Li, Hongyan, Sun, Hongzhe
    Publicado 2019
    “…We then summarize a family of metal-NTA based fluorescence probes in the visualization of His(6)-tagged protein and identification of metalloproteins at proteome-wide scale. …”
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  19. 4499
    “…The gas sensing properties of two novel series of Mg-incorporated metal–organic frameworks (MOFs), termed Mg-MOFs-I and -II, were assessed. …”
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  20. 4500
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