Sergio Piva

ORCID: 0000-0003-0050-0227
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About
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Research Areas
  • Metal-Organic Frameworks: Synthesis and Applications
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • biodegradable polymer synthesis and properties
  • Magnetism in coordination complexes
  • Lanthanide and Transition Metal Complexes
  • Organic and Molecular Conductors Research
  • Crystallography and molecular interactions
  • Advanced NMR Techniques and Applications
  • Supramolecular Chemistry and Complexes
  • Carbon dioxide utilization in catalysis
  • Pharmacogenetics and Drug Metabolism
  • Nanoplatforms for cancer theranostics
  • Catalysis and Oxidation Reactions
  • Inorganic Chemistry and Materials
  • Biopolymer Synthesis and Applications
  • Surface Modification and Superhydrophobicity
  • MXene and MAX Phase Materials
  • Metabolism and Genetic Disorders
  • Radiation Detection and Scintillator Technologies
  • Covalent Organic Framework Applications
  • Luminescence Properties of Advanced Materials
  • Characterization and Applications of Magnetic Nanoparticles
  • Bone Tissue Engineering Materials
  • Polymer Nanocomposite Synthesis and Irradiation

University of Milano-Bicocca
2021-2024

Abstract Natural and anthropogenic gas radionuclides such as radon, xenon, hydrogen krypton isotopes must be monitored to managed pathogenic agents, radioactive diagnostic agents or nuclear activity indicators. State-of-the-art detectors based on liquid scintillators suffer from laborious preparation limited solubility for gases, which affect the accuracy of measurements. The actual challenge is find solid scintillating materials simultaneously capable concentrating gases efficiently...

10.1038/s41566-023-01211-2 article EN cc-by Nature Photonics 2023-05-18

Abstract Fast photoluminescence and scintillation with a Stokes shift larger than 1 eV is achieved in hetero‐ligand metal–organic framework (MOF) crystals comprising inorganic linking nodes fluorescent conjugated ligands. By finely engineering the MOF composition use of ligands strictly complementary emission absorption properties highly delocalized molecular electronic orbitals, singlet excitons diffusion enhanced through ligand framework, fully exploiting both Förster Dexter energy...

10.1002/adfm.202404480 article EN Advanced Functional Materials 2024-05-27

Engineering coordinated rotational motion in porous architectures enables the fabrication of molecular machines solids. A flexible two-fold interpenetrated pillared Metal-Organic Framework precisely organizes fast mobile elements such as bicyclopentane (BCP) (10

10.1002/anie.202317094 article EN Angewandte Chemie International Edition 2024-01-18

Fluorinated Metal-Organic Frameworks (MOFs), comprising a wheel-shaped ligand with geminal rotating fluorine atoms, produced benchmark mobility of correlated dipolar rotors at 2 K, practically null activation energy (Ea =17 cal mol-1 ). 1 H T1 NMR revealed multiple relaxation phenomena due to the exchange among dipole-rotor configurations. Synchrotron radiation X-ray diffraction 4 Density Functional Theory, Molecular Dynamics and phonon calculations showed fluid landscape pointed out cascade...

10.1002/anie.202215893 article EN Angewandte Chemie International Edition 2022-12-05

Exposure of polymers to ionizing radiation and high-energy particle beams is involved in many processes – from food sterilization radiotherapy protocols. The resulting effects, at the final stages, determine functional, structural, morphological alteration material. However, responsible for cumulative chain scission, crosslinking, reactions with environment are often difficult disentangle as a sequence elementary events. Here we report spectroscopic study by attenuated-total reflection...

10.1016/j.polymdegradstab.2023.110485 article EN cc-by-nc-nd Polymer Degradation and Stability 2023-07-22

Abstract Engineering coordinated rotational motion in porous architectures enables the fabrication of molecular machines solids. A flexible two‐fold interpenetrated pillared Metal‐Organic Framework precisely organizes fast mobile elements such as bicyclopentane (BCP) (10 7 Hz regime at 85 K), two distinct pyridyl rotors and E ‐azo group involved pedal‐like motion. Reciprocal sliding sub‐networks, switched by chemical stimuli, modulated sizes channels finally overall dynamical machinery....

10.1002/ange.202317094 article EN Angewandte Chemie 2024-01-18

Rotors, motors and switches in the solid state find a favorable playground porous materials, especially frameworks, thanks to their large free volume, which allows for fast dynamics.We have realized molecular rotor Zn-MOF whose rotation speed approaches that of unhindered rotations organic moieties even at 2 K.[1,2] The three-fold bipyramidal symmetry rotator conflicting with four-fold strut frustrates formation stable conformations hyperfast persistent several continuous turns, an energy...

10.1107/s2053273323090691 article EN Acta Crystallographica Section A Foundations and Advances 2023-08-22

Abstract Fluorinated Metal‐Organic Frameworks (MOFs), comprising a wheel‐shaped ligand with geminal rotating fluorine atoms, produced benchmark mobility of correlated dipolar rotors at 2 K, practically null activation energy ( E =17 cal mol −1 ). 1 H T NMR revealed multiple relaxation phenomena due to the exchange among dipole‐rotor configurations. Synchrotron radiation X‐ray diffraction 4 Density Functional Theory, Molecular Dynamics and phonon calculations showed fluid landscape pointed...

10.1002/ange.202215893 article EN Angewandte Chemie 2022-12-05

Natural radioactive gases and anthropogenic radionuclides such as radon, xenon, hydrogen krypton isotopes, need to be carefully monitored properly managed pathogenic agents, diagnostic agents or indicators of nuclear activity. State-of-the-art gas detectors based on liquid scintillators suffer from many drawbacks lengthy sample preparation procedures limited solubility gaseous radionuclides, which produces a detrimental effect measurement sensitivity. A potential breakthrough solution this...

10.26434/chemrxiv-2022-9vglj preprint EN cc-by-nc-nd 2022-12-07
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