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282 results on '"Rigamonti, Luca"'

14. Role of Alkylated 2,6‐bis(tetrazol‐5‐yl)pyridyl Ligands and Iron(II) Salts in Selecting Spin Crossover Complexes

Author

Mazzoni, Rita, primary, Baratti, Stefano, additional, Rustichelli, Daniel, additional, Stagni, Stefano, additional, Zacchini, Stefano, additional, Fiorini, Valentina, additional, Pinkowicz, Dawid, additional, Forni, Alessandra, additional, Plaisier, Jasper R., additional, Gigli, Lara, additional, and Rigamonti, Luca, additional

Published
2024
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16. Management of anterior cruciate ligament tears in Tanner stage 1 and 2 children: a narrative review and treatment algorithm guided by ACL tear location

Author

TURATI, Marco, primary, RIGAMONTI, Luca, additional, GIULIVI, Andrea, additional, GADDI, Diego, additional, ACCADBLED, Franck, additional, ZANCHI, Nicolò, additional, BREMOND, Nicolas, additional, CATALANO, Marcello, additional, GORLA, Massimo, additional, OMELJANIUK, Robert J., additional, ZATTI, Giovanni, additional, PIATTI, Massimiliano, additional, and BIGONI, Marco, additional

Published
2023
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18. Trapping an unprecedented octacoordinated iron(II) complex with neutral bis-tetrazolylpyridyl ligands and solvent molecules.

Author

Rigamonti, Luca, Marchi, Lorenzo, Fiorini, Valentina, Stagni, Stefano, Zacchini, Stefano, Pinkowicz, Dawid, Dziedzic-Kocurek, Katarzyna, Forni, Alessandra, Muniz Miranda, Francesco, and Mazzoni, Rita

Subjects
*IRON, *COORDINATE covalent bond, *SINGLE crystals, *LIGANDS (Chemistry), *SOLVENTS, *SPIN labels
Abstract

Iron(II) can show a very rich coordination chemistry with concomitant modulation of its properties as promising functional materials. Metalation of the neutral tridentate nitrogen-donor mer-coordinating ligand 2,6-bis(2-(methyl)-2H-tetrazol-5-yl)pyridine (Me2btp) with Fe(ClO4)2·6H2O through accurate solvent polarity control enables the selective crystallization of [FeHS/LS(Me2btp)2](ClO4)2·MeCN·2.75H2O (2HS/LS·MeCN·2.75H2O) as red rods, where half of the iron(II) centres resides in the low spin (LS, S = 0) state and the other half is in the high spin (HS, S = 2) state. The red rods spontaneously convert into yellow crystals once removed from the mother liquor and exposed to air due to solvent rearrangement within the crystal packing; these new crystals can be assigned to [FeHS(Me2btp)2](ClO4)2·solvent (2HS·solvent) where all the iron(II) centres are now blocked in the HS state, as confirmed by magnetic measurements. The polarity of the crystallization solvent, together with the maintenance of the crystals within the mother liquor, are pivotal for the reactivity and interconversion of different species. Indeed, upon long standing in solution, 2HS/LS·MeCN·2.75H2O converts to another form of red crystals belonging to [FeLS(Me2btp)2][FeHS(Me2btp)(MeCN)2(H2O)](ClO4)4·MeCN (2LS·3HS·MeCN), as confirmed by single crystal X-ray diffraction data. In this co-crystal, the iron(II) in 2 resides in the LS state at all temperatures while the iron(II) in 3 is blocked in the HS state. Well-formed yellow crystals could be also isolated among the red crystals of 2HS/LS·MeCN·2.75H2O, and they could be identified as the unprecedented octacoordinated species [Fe(Me2btp)2(MeCN)(H2O)](ClO4)2·H2O (1·H2O) by single-crystal X-ray diffraction. These yellow crystals are stable in the air, but slowly convert into 2LS·3HS·MeCN if kept in the mother liquor for about one week. 1·H2O can be considered the trapped intermediate in the solid state during the conversion of [FeHS(Me2btp)2]2+ into [FeHS(Me2btp)(MeCN)2(H2O)]2+ in solution, where the two tridentate ligands in the starting species can unfold to accommodate coordinated MeCN and H2O molecules, as confirmed by theoretical calculations, and eventually one of the two Me2btp is completely replaced by the solvent. [ABSTRACT FROM AUTHOR]

Published
2024
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25. Prokineticin 2 and Cytokine Content in the Synovial Fluid of Knee Osteoarthritis and Traumatic Meniscal Tear Patients: Preliminary Results

Author

Turati, Marco, primary, Franchi, Silvia, additional, Crippa, Marco, additional, Rizzi, Laura, additional, Rigamonti, Luca, additional, Sacerdote, Paola, additional, Gatti, Simone Daniel, additional, Piatti, Massimiliano, additional, Galimberti, Giulia, additional, Munegato, Daniele, additional, Amodeo, Giada, additional, Omeljaniuk, Robert J., additional, Zatti, Giovanni, additional, Torsello, Antonio, additional, and Bigoni, Marco, additional

Published
2023
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33. Additional file 1 of Flow-dependent shear stress affects the biological properties of pericyte-like cells isolated from human dental pulp

Author

Bertani, Giulia, Di Tinco, Rosanna, Bertoni, Laura, Orlandi, Giulia, Pisciotta, Alessandra, Rosa, Roberto, Rigamonti, Luca, Signore, Michele, Bertacchini, Jessika, Sena, Paola, De Biasi, Sara, Villa, Erica, and Carnevale, Gianluca

Abstract

Additional file 1: Figure S1. Extended data for figure 3 and 4. Uncropped Western blot images showing A PDGFR-β and related actin; B cleaved caspase-3 and related actin; C eNOS and VEGF with related actin; D Tie2, ANGPT1 and related actin. Boxed areas correspond to cropped regions shown in figure 3C and 3E. Specific target bands were selected according to the molecular weight reported in antibodies’ datasheets. Table S1: raw RPPA data.

Published
2023
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36. Characterization of microRNA Levels in Synovial Fluid from Knee Osteoarthritis and Anterior Cruciate Ligament Tears

Author

Rizzi, Laura, primary, Turati, Marco, additional, Bresciani, Elena, additional, Anghilieri, Filippo Maria, additional, Meanti, Ramona, additional, Molteni, Laura, additional, Piatti, Massimiliano, additional, Zanchi, Nicolò, additional, Coco, Silvia, additional, Buonanotte, Francesco, additional, Rigamonti, Luca, additional, Zatti, Giovanni, additional, Locatelli, Vittorio, additional, Omeljaniuk, Robert J., additional, Bigoni, Marco, additional, and Torsello, Antonio, additional

Published
2022
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37. Clinical outcomes and complications after anterior cruciate ligament reconstruction with bone–patellar tendon–bone in patient Tanner 3 and 4: a systematic review

Author

Turati, Marco, primary, Caliandro, Marco, additional, Gaddi, Diego, additional, Piatti, Massimiliano, additional, Rigamonti, Luca, additional, Zanchi, Nicolò, additional, Di Benedetto, Paolo, additional, Boerci, Linda, additional, Catalano, Marcello, additional, Zatti, Giovanni, additional, Ollivier, Matthieu, additional, and Bigoni, Marco, additional

Published
2022
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39. A proficient multivariate approach for iron(II) spin crossover behaviour modelling in the solid state.

Author

Marchi, Lorenzo, Fantuzzi, Simone, Cingolani, Andrea, Messori, Alessandro, Mazzoni, Rita, Zacchini, Stefano, Cocchi, Marina, and Rigamonti, Luca

Subjects
SPIN crossover, PARTIAL least squares regression, IRON, SOLVENTS, PRINCIPAL components analysis, BOND angles, GLASS transition temperature
Abstract

Iron(II) bis-pyrazolilpyridyl (bpp-R) complexes [Fe(bpp-R)2](X)2·solvent, R = substituent and X− = anion, can undergo a spin transition from high (S = 2, HS) to low spin (S = 0, LS), being spin crossover (SCO) in the solid state. The distortion of the octahedral coordination environment around the metal centre is governed by crystal packing, i.e. the intermolecular interactions among the substituent R of the bpp-R ligands, the anion X−, and the co-crystallized solvent, and this modulates the SCO behaviour. In this work, an innovative multivariate approach, through the combination of the chemometric tools Principal Component Analysis and Partial Least Squares regression, was applied on the coordination bond distances and angles and selected torsional angles of the available HS structures. The obtained results can efficiently model and rationalize the structural data distinguishing between SCO-active and HS-blocked complexes bearing different R groups, X− anions, and co-crystallized solvents and help predict the spin transition temperature T1/2. [ABSTRACT FROM AUTHOR]

Published
2023
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41. Substituent-Guided Cluster Nuclearity for Tetranuclear Iron(III) Compounds with Flat {Fe 4 (μ 3 -O) 2 } Butterfly Core.

Author

Marchi, Lorenzo, Carlino, Stefano, Castellano, Carlo, Demartin, Francesco, Forni, Alessandra, Ferretti, Anna M., Ponti, Alessandro, Pasini, Alessandro, and Rigamonti, Luca

Subjects
IRON clusters, ATOMS, ATOMS in molecules theory, MOLECULAR structure, SCHIFF bases, COUPLING constants, IRON ions
Abstract

The tetranuclear iron(III) compounds [Fe4(μ3-O)2(μ-LZ)4] (1–3) were obtained by reaction of FeCl3 with the shortened salen-type N2O2 tetradentate Schiff bases N,N'-bis(salicylidene)-o-Z-phenylmethanediamine H2LZ (Z = NO2, Cl and OMe, respectively), where the one-carbon bridge between the two iminic nitrogen donor atoms guide preferentially to the formation of oligonuclear species, and the ortho position of the substituent Z on the central phenyl ring selectively drives towards Fe4 bis-oxido clusters. All compounds show a flat almost-symmetric butterfly-like conformation of the {Fe4(μ3-O)2} core, surrounded by the four Schiff base ligands, as depicted by both the X-ray molecular structures of 1 and 2 and the optimized geometries of all derivatives as obtained by UM06/6-311G(d) DFT calculations. The strength of the antiferromagnetic exchange coupling constants between the iron(III) ions varies among the three derivatives, despite their magnetic cores remain structurally almost unvaried, as well as the coordination of the metal ions, with a distorted octahedral environment for the two-body iron ions, Feb, and a pentacoordination with trigonal bipyramidal geometry for the two-wing iron ions, Few. The different magnetic behavior within the series of examined compounds may be ascribed to the influence of the electronic features of Z on the electron density distribution (EDD) of the central {Fe4(μ3-O)2} core, substantiated by a Quantum Theory of Atoms In Molecules (QTAIM) topological analysis of the EDD, as obtained by UM06 calculations 1–3. [ABSTRACT FROM AUTHOR]

Published
2023
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45. Upgrading of Biobased Glycerol to Glycerol Carbonate as a Tool to Reduce the CO 2 Emissions of the Biodiesel Fuel Life Cycle.

Author

Anderlini, Biagio, Ughetti, Alberto, Cristoni, Emma, Forti, Luca, Rigamonti, Luca, and Roncaglia, Fabrizio

Subjects
CARBON emissions, FUEL cycle, BIODIESEL fuels, CARBONATE reservoirs, DIESEL fuels, CARBON cycle, GLYCERIN, CARBONATE minerals, CARBONATES
Abstract

With regards to oil-based diesel fuel, the adoption of bio-derived diesel fuel was estimated to reduce CO2 emissions by approximately 75%, considering the whole life cycle. In this paper, we present a novel continuous-flow process able to transfer an equimolar amount of CO2 (through urea) to glycerol, producing glycerol carbonate. This represents a convenient tool, able to both improve the efficiency of the biodiesel production through the conversion of waste streams into added-value chemicals and to beneficially contribute to the whole carbon cycle. By means of a Design of Experiments approach, the influence of key operating variables on the product yield was studied and statistically modeled. [ABSTRACT FROM AUTHOR]

Published
2022
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47. Resolvin E1 and Cytokines Environment in Skeletally Immature and Adult ACL Tears

Author

Turati, Marco, primary, Franchi, Silvia, additional, Leone, Giulio, additional, Piatti, Massimiliano, additional, Zanchi, Nicolò, additional, Gandolla, Marta, additional, Rigamonti, Luca, additional, Sacerdote, Paola, additional, Rizzi, Laura, additional, Pedrocchi, Alessandra, additional, Omeljaniuk, Robert J., additional, Zatti, Giovanni, additional, Torsello, Antonio, additional, and Bigoni, Marco, additional

Published
2021
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