Publications by authors named "R Senesi"

Article Synopsis
  • The study measures the nuclear kinetic energies of hydrogen and oxygen in water molecules as they transition from solid to liquid at specific temperatures (270 K for solid and 276 K for liquid), using neutron Compton profiles in deep inelastic neutron scattering experiments.* -
  • It finds similar total kinetic energy values per molecule in both phases (35.3 ± 0.8 kJ/mol for solid, 34.8 ± 0.8 kJ/mol for liquid), aligning with computer simulations and models that suggest minimal difference between the two states through a phase change.* -
  • The small variance in nuclear kinetic energy across melting enables simplification in calculating neutron environmental doses in settings like high altitude or polar regions, suggesting that the
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  • - Neutron imaging is a powerful technique used in various applications that require strong penetration capabilities, especially for detecting specific elements and analyzing crystal structures.
  • - Two notable methods are white-beam neutron imaging, which focuses on elements with high neutron attenuation, and energy-resolved Bragg edge imaging for studying crystal lattices.
  • - The text emphasizes the potential of energy-selective neutron imaging to provide detailed molecular-specific information, highlighted by a practical example investigating molecular-hydrogen behavior in the HKUST-1 metal-organic framework.
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  • Boron-containing compounds like 4-borono-phenylalanine (BPA) are used in Boron Neutron Capture Therapy (BNCT) to target and destroy cancer cells via neutron irradiation, which triggers nuclear reactions in boron-rich materials.* -
  • This study models the thermal neutron cross-section of BPA to examine how boron absorption competes with hydrogen scattering, aiming to optimize BNCT treatment by reducing the latter's effect.* -
  • The findings indicate that fluorinated versions of BPA enhance neutron capture efficiency, offering a potential improvement for BNCT, while also facilitating monitoring and pharmacokinetic studies with fluorine-based imaging techniques.*
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The increasing interest in stretchable conductive composite materials, that can be versatile and suitable for wide-ranging application, has sparked a growing demand for studies of scalable fabrication techniques and specifically tailored geometries. Thanks to the combination of the conductivity and robustness of carbon nanotube (CNT) materials with the viscoelastic properties of polymer films, in particular their stretchability, "surface composites" made of a CNT on polymeric films are a promising way to obtain a low-cost, conductive, elastic, moldable, and patternable material. The use of polymers selected for specific applications, however, requires targeted studies to deeply understand the interface interactions between a CNT and the surface of such polymer films, and in particular the stability and durability of a CNT grafting onto the polymer itself.

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  • - This study explores the properties of methylammonium lead tribromide single crystals across different phases (orthorhombic, tetragonal, and cubic) using neutron scattering techniques, emphasizing the impact of vibrational energies on hydrogen nuclear kinetic energy.
  • - It highlights that the tetragonal phase exhibits a higher Gaussian contribution to average nuclear kinetic energy compared to the cubic and orthorhombic phases, suggesting distinct vibrational behaviors in different structural phases.
  • - The research confirms that vibrational modes in the orthorhombic phase align with results from powder samples, with only minor frequency differences noted when comparing to similar compounds (MAPbI), indicating consistent zero-point energies across the two perovskites. *
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