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Paderni D, Macedi E, Giacomazzo GE, Formica M, Giorgi L, Valtancoli B, Rossi P, Paoli P, Conti L, Fusi V, Giorgi C. A new biphenol-dipicolylamine based ligand and its dinuclear Zn 2+ complex as fluorescent sensors for ibuprofen and ketoprofen in aqueous solution. Dalton Trans 2024. [PMID: 38767612 DOI: 10.1039/d4dt00935e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
In this work, the study of the new ligand 3,3'-bis[N,N-bis(pyridine-2-ylmethyl)aminomethyl]-2,2'-dihydroxybiphenyl (L) is reported, where a central 2,2'-biphenol (BPH) fluorophore was functionalized at 3,3'-positions with two dipicolylamine (DPA) side arms as receptor units. Following the synthesis and full chemical-physical characterization, the acid-base and Zn2+-coordination abilities of L were investigated through a combination of potentiometric, UV-Vis, fluorescence, NMR, XRD and DFT measurements. The optical properties of the ligand turned out to be strongly dependent on the pH, being straightforwardly associated with the protonation state of the BPH moiety, whereas its peculiar design allowed to form stable mono and dinuclear Zn2+ complexes. In the latter species, the presence of two Zn2+ ions coordinatively unsaturated and placed at close distance to each other, prompted us to test their usefulness as metallo-receptors for two environmental pollutants of great relevance, ibuprofen and ketoprofen. Potentiometric and fluorescence investigations evidenced that these important non-steroidal anti-inflammatory drugs (NSAIDs) are effectively coordinated by the metallo-receptors and, of relevance, both the stability and the fluorescence properties of the resulting ternary adducts are markedly affected by the different chemical architectures of the two substrates. This study aims at highlighting the promising perspectives arising from the use of polyamino phenolic ligands as chemosensors for H+/Zn2+ and other additional anionic targets in their metal-complexed forms.
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Affiliation(s)
- Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino, via Ca' le Suore, 2-4, 61029 Urbino, Italy.
| | - Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino, via Ca' le Suore, 2-4, 61029 Urbino, Italy.
| | - Gina Elena Giacomazzo
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino, via Ca' le Suore, 2-4, 61029 Urbino, Italy.
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino, via Ca' le Suore, 2-4, 61029 Urbino, Italy.
| | - Barbara Valtancoli
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
| | - Luca Conti
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino, via Ca' le Suore, 2-4, 61029 Urbino, Italy.
| | - Claudia Giorgi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
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Panza G, Montanari M, Lopez D, Burattini S, Ciacci C, Fumelli PP, Pasini G, Fusi V, Giorgi L, Grandoni F, Papa S, Santolini R, Canonico B. Flow cytometric analysis of hepatopancreatic cells from Armadillidium vulgare highlights terrestrial isopods as efficient environmental bioindicators in ex vivo settings. Environ Sci Pollut Res Int 2024; 31:9745-9763. [PMID: 38194171 PMCID: PMC10824867 DOI: 10.1007/s11356-023-31375-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 12/01/2023] [Indexed: 01/10/2024]
Abstract
Several studies have reported the high bioindication capacity of Isopoda (Crustacea, Oniscidea), which is related to their important ability to accumulate contaminants, usefulness in soil ecotoxicology and bioindication activities. Any change in the isopod population, diversity and life cycle can indicate relevant pollution levels. The analysis of target tissues, such as the hepatopancreas, is another emerging approach (from a cytologic/histological level) to detect contaminant accumulation from different sources. In this study, tissue disaggregation procedures were optimised in the hepatopancreas, and flow cytometry (FC) was applied to detect cell viability and several cell functions. After disaggregation, two hepatopancreatic cell types, small (S) and big (B), were still recognisable: they differed in morphology and behaviour. The analyses were conducted for the first time on isopods from sites under different conditions of ecological disturbance through cytometric re-interpretation of ecological-environmental parameters. Significant differences in cell functional parameters were found, highlighting that isopod hepatopancreatic cells can be efficiently analysed by FC and represent standardisable, early biological indicators, tracing environmental-induced stress through cytologic/histologic analyses.
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Affiliation(s)
- Giovanna Panza
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Mariele Montanari
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Daniele Lopez
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Sabrina Burattini
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Caterina Ciacci
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Piermarco Paci Fumelli
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Giovanni Pasini
- Centro Ricerche Ecologiche E Naturalistiche (CREN), Soc. Coop., 47922, Rimini, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Francesco Grandoni
- Centro Di Ricerca Zootecnia E Acquacoltura (Research Centre for Animal Production and Aquaculture), CREA - Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Monterotondo, Rome, Italy
| | - Stefano Papa
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Riccardo Santolini
- Department of Humanistic Studies (DISTUM), University of Urbino Carlo Bo, 61029, Urbino, Italy
| | - Barbara Canonico
- Department of Biomolecular Sciences (DISB), University of Urbino Carlo Bo, 61029, Urbino, Italy.
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Montanaro A, Piccinini G, Mišeikis V, Sorianello V, Giambra MA, Soresi S, Giorgi L, D'Errico A, Watanabe K, Taniguchi T, Pezzini S, Coletti C, Romagnoli M. Sub-THz wireless transmission based on graphene-integrated optoelectronic mixer. Nat Commun 2023; 14:6471. [PMID: 37833246 PMCID: PMC10575943 DOI: 10.1038/s41467-023-42194-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Optoelectronics is a valuable solution to scale up wireless links frequency to sub-THz in the next generation antenna systems and networks. Here, we propose a low-power consumption, small footprint building block for 6 G and 5 G new radio wireless transmission allowing broadband capacity (e.g., 10-100 Gb/s per link and beyond). We demonstrate a wireless datalink based on graphene, reaching setup limited sub-THz carrier frequency and multi-Gbit/s data rate. Our device consists of a graphene-based integrated optoelectronic mixer capable of mixing an optically generated reference oscillator approaching 100 GHz, with a baseband electrical signal. We report >96 GHz optoelectronic bandwidth and -44 dB upconversion efficiency with a footprint significantly smaller than those of state-of-the-art photonic transmitters (i.e., <0.1 mm2). These results are enabled by an integrated-photonic technology based on wafer-scale high-mobility graphene and pave the way towards the development of optoelectronics-based arrayed-antennas for millimeter-wave technology.
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Affiliation(s)
- Alberto Montanaro
- Photonic Networks and Technologies Lab - CNIT, Via G. Moruzzi,1, 56124, Pisa, Italy.
- TeCIP Institute, Scuola Superiore Sant'Anna, via G. Moruzzi 1, 56124, Pisa, Italy.
| | - Giulia Piccinini
- NEST, Scuola Normale Superiore, Piazza San Silvestro 12, 56127, Pisa, Italy
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Vaidotas Mišeikis
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy
- Graphene Labs, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Vito Sorianello
- Photonic Networks and Technologies Lab - CNIT, Via G. Moruzzi,1, 56124, Pisa, Italy
| | - Marco A Giambra
- Inphotec, CamGraPhIC srl, via G. Moruzzi 1, 56124, Pisa, Italy
| | - Stefano Soresi
- Inphotec, CamGraPhIC srl, via G. Moruzzi 1, 56124, Pisa, Italy
| | - Luca Giorgi
- Ericsson Research, via G. Moruzzi 1, 56124, Pisa, Italy
| | | | - K Watanabe
- Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - T Taniguchi
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Sergio Pezzini
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, P.zza S. Silvestro 12, 56127, Pisa, Italy
| | - Camilla Coletti
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy
- Graphene Labs, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Marco Romagnoli
- Photonic Networks and Technologies Lab - CNIT, Via G. Moruzzi,1, 56124, Pisa, Italy
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Lancioni N, Parlapiano M, Sgroi M, Giorgi L, Fusi V, Darvini G, Soldini L, Szeląg B, Eusebi AL, Fatone F. Polyethylene pipes exposed to chlorine dioxide in drinking water supply system: A critical review of degradation mechanisms and accelerated aging methods. Water Res 2023; 238:120030. [PMID: 37150063 DOI: 10.1016/j.watres.2023.120030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 03/24/2023] [Accepted: 05/01/2023] [Indexed: 05/09/2023]
Abstract
Polyethylene (PE) pipes have been widely used in drinking water distribution systems across the world. In many cases, chlorine dioxide (ClO2) is used to maintain a residual disinfectant concentration in potable water. Practical experiences have shown that the lifetime of PE pipes is significantly reduced due to exposure to drinking water with ClO2. Recently, many companies have proposed new PE pipes with a modified formulation, which are more resistant to chlorine dioxide. However, a standardized test method for evaluating the long-term performances of PE pipes is still missing. This literature review was performed to provide a description of chlorine dioxide uses and degradation mechanisms of polyethylene pipes in real water distribution systems. Current accelerated aging methods to evaluate long-term performances of PE pipes exposed to ClO2 are described and discussed along with the common technics used to characterize the specimens. Accelerate aging methods can be distinguished in immersion aging tests and pressurized pipe loop tests. Wide ranges of operational conditions (chlorine dioxide concentration, water pressure, water temperature, etc.) are applied, resulting in a great variety of results. It was concluded that pressurized looping tests applying semi-realistic operational conditions could better replicate the aging mechanisms occurring in service. Despite this, the acceleration and the evaluation of the long-term performance are still difficult to determine precisely. Further experimentation is needed to correlate chemical-mechanical characterization parameters of PE pipes with their lifetime in service.
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Affiliation(s)
- Nicola Lancioni
- Department of Science and Engineering of Materials, Environment and Urban Planning-SIMAU, Marche Polytechnic University, Via Brecce Bianche, 12, Ancona 60131, Italy
| | - Marco Parlapiano
- Department of Science and Engineering of Materials, Environment and Urban Planning-SIMAU, Marche Polytechnic University, Via Brecce Bianche, 12, Ancona 60131, Italy.
| | - Massimiliano Sgroi
- Department of Science and Engineering of Materials, Environment and Urban Planning-SIMAU, Marche Polytechnic University, Via Brecce Bianche, 12, Ancona 60131, Italy.
| | - Luca Giorgi
- Department of Pure and Applied Sciences- DiSPeA, University of Urbino Carlo Bo, Urbino 61029, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences- DiSPeA, University of Urbino Carlo Bo, Urbino 61029, Italy
| | - Giovanna Darvini
- Department of Civil and Building Engineering and Architecture, Marche Polytechnic University, Via Brecce Bianche 12, Ancona 60131, Italy
| | - Luciano Soldini
- Department of Civil and Building Engineering and Architecture, Marche Polytechnic University, Via Brecce Bianche 12, Ancona 60131, Italy
| | - Bartosz Szeląg
- Department of Hydraulic and Sanitary Engineering, Warsaw University of Life Sciences-SGGW, Warsaw 02-797, Poland
| | - Anna Laura Eusebi
- Department of Science and Engineering of Materials, Environment and Urban Planning-SIMAU, Marche Polytechnic University, Via Brecce Bianche, 12, Ancona 60131, Italy.
| | - Francesco Fatone
- Department of Science and Engineering of Materials, Environment and Urban Planning-SIMAU, Marche Polytechnic University, Via Brecce Bianche, 12, Ancona 60131, Italy
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Paderni D, Barone G, Giorgi L, Formica M, Macedi E, Fusi V. A novel 2,6-bis(benzoxazolyl)phenol macrocyclic chemosensor with enhanced fluorophore properties by photoinduced intramolecular proton transfer. Dalton Trans 2023; 52:3716-3724. [PMID: 36857675 DOI: 10.1039/d3dt00140g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Macrocyclic ligand L, in which a 2,6-bis(2-benzoxazolyl)phenol (bis-HBO) group is incorporated in triethylenetetramine, was designed and synthesized with the aim of creating a chemosensor with high selectivity and specificity for metal cations in an aqueous environment. The availability of several proton acceptors and donors, and amine and phenol hydroxy groups, respectively, affects the keto-enol equilibrium in both the ground and excited states, and the ligand properties show dependence on the pH of the solution. L is fluorescent in the visible range, through an excited-state intramolecular proton transfer (ESIPT) mechanism. The results of an exhaustive characterization of L by spectroscopic techniques and DFT calculations, as well as of its Zn(II), Cd(II) and Pb(II) complexes, show promising properties of L as a ratiometric metal cation chemosensor, since metal coordination prevents the ESIPT and gives rise to a peculiar displacement of the fluorescence emission from green to blue with Zn(II) and Cd(II), while with Pb(II) the fluorescence is quenched.
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Affiliation(s)
- Daniele Paderni
- Dipartimento di Scienze Pure e Applicate (DiSPeA), Università di Urbino "Carlo Bo", Piazza Rinascimento 6, I-61029 Urbino, Italy.
| | - Giampaolo Barone
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STeBiCeF), Università degli Studi di Palermo, Viale delle Scienze, Edificio 17, 90128 Palermo, Italy.
| | - Luca Giorgi
- Dipartimento di Scienze Pure e Applicate (DiSPeA), Università di Urbino "Carlo Bo", Piazza Rinascimento 6, I-61029 Urbino, Italy.
| | - Mauro Formica
- Dipartimento di Scienze Pure e Applicate (DiSPeA), Università di Urbino "Carlo Bo", Piazza Rinascimento 6, I-61029 Urbino, Italy.
| | - Eleonora Macedi
- Dipartimento di Scienze Pure e Applicate (DiSPeA), Università di Urbino "Carlo Bo", Piazza Rinascimento 6, I-61029 Urbino, Italy.
| | - Vieri Fusi
- Dipartimento di Scienze Pure e Applicate (DiSPeA), Università di Urbino "Carlo Bo", Piazza Rinascimento 6, I-61029 Urbino, Italy.
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Picci G, Aragoni MC, Arca M, Caltagirone C, Formica M, Fusi V, Giorgi L, Ingargiola F, Lippolis V, Macedi E, Mancini L, Mummolo L, Prodi L. Fluorescent sensing of non-steroidal anti-inflammatory drugs naproxen and ketoprofen by dansylated squaramide-based receptors. Org Biomol Chem 2023; 21:2968-2975. [PMID: 36938589 DOI: 10.1039/d3ob00324h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Bis-squaramide receptors L1-L4 bearing a dansyl moiety were synthesised and their potential applications as fluorescent probes towards non steroidal anti-inflammatory drugs naproxen and ketoprofen was investigated. A detailed photophysical characterization in CH3CN/DMSO solution (9 : 1 v/v) was conducted and demonstrated that the two macrocyclic receptors L1 and L2 show good sensitivity towards ketoprofen with an ON-OFF fluorescent response, while the two open chain receptors L3 and L4 behave similarly with the three guests considered. DFT theoretical calculations carried out on L2 and L4 as model receptors allowed to propose a possible coordination mode towards the guests. Finally, 1H-NMR spectroscopy in DMSO-d6/0.5% water solution demonstrated that the four receptors interact with the considered guests via H-bonds.
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Affiliation(s)
- Giacomo Picci
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, CA, Italy.
| | - M Carla Aragoni
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, CA, Italy.
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, CA, Italy.
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, CA, Italy.
| | - Mauro Formica
- Department of Pure and Applied Science, University of Urbino, Via della Stazione 4, I-61029 Urbino, Italy.
| | - Vieri Fusi
- Department of Pure and Applied Science, University of Urbino, Via della Stazione 4, I-61029 Urbino, Italy.
| | - Luca Giorgi
- Department of Pure and Applied Science, University of Urbino, Via della Stazione 4, I-61029 Urbino, Italy.
| | - Filippo Ingargiola
- Department of Chemistry "Giacomo Ciamician", Università degli Studi di Bologna, Via Selmi 2, 40126 Bologna, Italy.
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, CA, Italy.
| | - Eleonora Macedi
- Department of Pure and Applied Science, University of Urbino, Via della Stazione 4, I-61029 Urbino, Italy.
| | - Luca Mancini
- Department of Pure and Applied Science, University of Urbino, Via della Stazione 4, I-61029 Urbino, Italy.
| | - Liviana Mummolo
- Department of Chemistry "Giacomo Ciamician", Università degli Studi di Bologna, Via Selmi 2, 40126 Bologna, Italy.
| | - Luca Prodi
- Department of Chemistry "Giacomo Ciamician", Università degli Studi di Bologna, Via Selmi 2, 40126 Bologna, Italy.
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Giacomazzo GE, Paderni D, Giorgi L, Formica M, Mari L, Montis R, Conti L, Macedi E, Valtancoli B, Giorgi C, Fusi V. A New Family of Macrocyclic Polyamino Biphenolic Ligands: Acid-Base Study, Zn(II) Coordination and Glyphosate/AMPA Binding. Molecules 2023; 28:molecules28052031. [PMID: 36903278 PMCID: PMC10003900 DOI: 10.3390/molecules28052031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 02/25/2023] Open
Abstract
In this study, the ligands 23,24-dihydroxy-3,6,9,12-tetraazatricyclo[17.3.1.1(14,18)]eicosatetra-1(23),14,16,18(24),19,21-hexaene, L1, and 26,27-dihidroxy-3,6,9,12,15-pentaazatricyclo[20.3.1.1(17,21)]eicosaepta-1(26),17,19,21(27),22,24-hexaene, L2, were synthesized: they represent a new class of molecules containing a biphenol unit inserted into a macrocyclic polyamine fragment. The previously synthesized L2 is obtained herein with a more advantageous procedure. The acid-base and Zn(II)-binding properties of L1 and L2 were investigated through potentiometric, UV-Vis, and fluorescence studies, revealing their possible use as chemosensors of H+ and Zn(II). The new peculiar design of L1 and L2 afforded the formation in an aqueous solution of stable Zn(II) mono (LogK 12.14 and 12.98 for L1 and L2, respectively) and dinuclear (LogK 10.16 for L2) complexes, which can be in turn exploited as metallo-receptors for the binding of external guests, such as the popular herbicide glyphosate (N-(phosphonomethyl)glycine, PMG) and its primary metabolite, the aminomethylphosphonic acid (AMPA). Potentiometric studies revealed that PMG forms more stable complexes than AMPA with both L1- and L2-Zn(II) complexes, moreover PMG showed higher affinity for L2 than for L1. Fluorescence studies showed instead that the L1-Zn(II) complex could signal the presence of AMPA through a partial quenching of the fluorescence emission. These studies unveiled therefore the utility of polyamino-phenolic ligands in the design of promising metallo-receptors for elusive environmental targets.
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Affiliation(s)
- Gina Elena Giacomazzo
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy
| | - Lorenzo Mari
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Riccardo Montis
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy
| | - Luca Conti
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
- Correspondence: (L.C.); (E.M.); (C.G.)
| | - Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy
- Correspondence: (L.C.); (E.M.); (C.G.)
| | - Barbara Valtancoli
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Claudia Giorgi
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
- Correspondence: (L.C.); (E.M.); (C.G.)
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy
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Macedi E, Giorgi L, Formica M, Rossi P, Paderni D, Paoli P, Fusi V. A Tetranuclear Copper(II)/Calcium(II) Complex as Dual Chemosensor for Colorimetric and Fluorescent Detection of Non‐Steroidal Anti‐Inflammatory Drugs. Chempluschem 2023. [DOI: 10.1002/cplu.202300041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Eleonora Macedi
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 61029 Urbino Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 61029 Urbino Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 61029 Urbino Italy
| | - Patrizia Rossi
- Department of Industrial Engineering University of Florence via S. Marta 3 50139 Florence Italy
| | - Daniele Paderni
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 61029 Urbino Italy
| | - Paola Paoli
- Department of Industrial Engineering University of Florence via S. Marta 3 50139 Florence Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 61029 Urbino Italy
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Macedi E, Giorgi L, Formica M, Rossi P, Paderni D, Paoli P, Fusi V. A Tetranuclear Copper(II)/Calcium(II) Complex as Dual Chemosensor for Colorimetric and Fluorescent Detection of Non-Steroidal Anti-Inflammatory Drugs. Chempluschem 2023; 88:e202200364. [PMID: 36658696 DOI: 10.1002/cplu.202200364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/04/2023] [Indexed: 01/06/2023]
Abstract
The tetranuclear Cu2+ /Ca2+ /Ca2+ /Cu2+ complex based on Malten ligand has been investigated as a platform for anion binding. Simple organic carboxylates and non-steroidal anti-inflammatory drugs (NSAIDs) have been tested, revealing the ability of the platform to bind them. The receiving platform hosts at least two guests in solution although a third anion can be bound, as suggested by X-ray diffraction analysis. The addition of the anions is accompanied by a color change of the solution, making the system a colorimetric sensor for carboxylates (LOD values comprised between 3.6 and 20.7 ppm). A fluorescent system consisting of the 2-(3-oxido-6-oxoxanthen-9-yl)benzoate (fluorescein anion) linked to the tetranuclear platform has been also prepared and used in a chemosensing ensemble approach to signal the presence of the selected anions (Log K between 2.6 and 5.6 for the addition of two guests). The latter also works in a paper strip test, offering the chemosensor a possible practical application.
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Affiliation(s)
- Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139, Florence, Italy
| | - Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139, Florence, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
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10
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Paderni D, Lopez D, Macedi E, Ambrosi G, Ricci A, Palazzetti E, Giorgi L, Formica M, Fusi V. Solvent induced selective response to metal ions of three HNBO-based chemosensors. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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11
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Amatori S, Persico G, Cantatore F, Rusin M, Formica M, Giorgi L, Macedi E, Casciaro F, Errico Provenzano A, Gambardella S, Noberini R, Bonaldi T, Fusi V, Giorgio M, Fanelli M. Small molecule-induced epigenomic reprogramming of APL blasts leading to antiviral-like response and c-MYC downregulation. Cancer Gene Ther 2022; 30:671-682. [PMID: 36536122 DOI: 10.1038/s41417-022-00576-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022]
Abstract
AbstractAcute promyelocytic leukemia (APL) is an aggressive subtype of acute myeloid leukemia (AML) in which the PML/RARα fusion protein exerts oncogenic activities by recruiting repressive complexes to the promoter of specific target genes. Other epigenetic perturbations, as alterations of histone H3 lysine 9 trimethylation (H3K9me3), have been frequently found in AMLs and are associated with leukemogenesis and leukemia progression. Here, we characterized the epigenomic effects of maltonis, a novel maltol-derived molecule, in APL cells. We demonstrate that maltonis treatments induce a profound remodulation of the histone code, reducing global H3K9me3 signal and modulating other histone post-translational modifications. Transcriptomic and epigenomic analyses revealed that maltonis exposure induces changes of genes expression associated with a genomic redistribution of histone H3 lysine 4 trimethylation (H3K4me3) and lysine 27 acetylation (H3K27ac). Upregulation of interferon alpha and gamma response and downregulation of c-MYC target genes, in function of c-MYC reduced expression (monitored in all the hematopoietic neoplasms tested), represent the most significant modulated pathways. These data demonstrate the ability of maltonis to epigenetically reprogram the gene expression profile of APL cells, inducing an intriguing antiviral-like response, concomitantly with the downregulation of c-MYC-related pathways, thus making it an attractive candidate for antileukemic therapy.
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12
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Paderni D, Macedi E, Lvova L, Ambrosi G, Formica M, Giorgi L, Paolesse R, Fusi V. Selective Detection of Mg
2+
for Sensing Applications in Drinking Water. Chemistry 2022; 28:e202201062. [PMID: 35622380 PMCID: PMC9542287 DOI: 10.1002/chem.202201062] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Indexed: 11/12/2022]
Abstract
A new series of ligands containing the 2‐(2‐hydroxy‐3‐ naphthyl)‐4‐methylbenzoxazole (HNBO) fluorophore showed selectivity for Mg2+ ions, without the interference of Ca2+. The most promising representative L3 resulted the best performing sensor for Mg2+ both in solution and embedded in an all‐solid‐state optode, especially towards real samples of drinkable water.
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Affiliation(s)
- Daniele Paderni
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 I-61029 Urbino Italy
| | - Eleonora Macedi
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 I-61029 Urbino Italy
| | - Larisa Lvova
- Department of Chemical Sciences and Technology University of Rome “Tor Vergata” Via della Ricerca Scientifica 1 I-00133 Roma Italy
| | - Gianluca Ambrosi
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 I-61029 Urbino Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 I-61029 Urbino Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 I-61029 Urbino Italy
| | - Roberto Paolesse
- Department of Chemical Sciences and Technology University of Rome “Tor Vergata” Via della Ricerca Scientifica 1 I-00133 Roma Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences University of Urbino “Carlo Bo” Via della Stazione 4 I-61029 Urbino Italy
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13
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Canonico B, Cangiotti M, Montanari M, Papa S, Fusi V, Giorgi L, Ciacci C, Ottaviani MF, Staneva D, Grabchev I. Characterization of a fluorescent 1,8-naphthalimide-functionalized PAMAM dendrimer and its Cu(ii) complexes as cytotoxic drugs: EPR and biological studies in myeloid tumor cells. Biol Chem 2021; 403:345-360. [PMID: 34883001 DOI: 10.1515/hsz-2021-0388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/18/2021] [Indexed: 01/18/2023]
Abstract
The activity and interacting ability of a polyamidoamine (PAMAM) dendrimer modified with 4-N-methylpiperazine-1,8-naphthalimide units (termed D) and complexed by Cu(ii) ions, towards healthy and cancer cells were studied. Comparative electron paramagnetic resonance (EPR) studies of the Cu(ii)-D complex are presented: coordination mode, chemical structure, flexibility and stability of these complexes, in the absence and presence of myeloid cancer cells and peripheral blood mononuclear cells (PBMC). The interactions of Cu(ii) ions in the biological media at different equilibrium times were studied, highlighting different stability and interacting conditions with the cells. Furthermore, flow cytometry and confocal analysis, trace the peculiar properties of the dendrimers in PBMC and U937 cells. Indeed, a new probe (Fly) was used as a potential fluorescent tool for biological imaging of Cu(ii). The study highlights that dendrimer and, mainly, the Cu(ii) metallodendrimer are cytotoxic agents for the cells, specifically for U937 tumor cells, inducing mitochondrial dysfunction, ROS increase and lysosome involvement. The metallodendrimer shows antitumor selectivity, fewer affecting healthy PBMC, inducing a massive apoptotic cell death on U937 cells, in line with the high stability of this complex, as verified by EPR studies. The results underline the potentiality of this metallodendrimer to be used as anticancer drug.
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Affiliation(s)
- Barbara Canonico
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | - Michela Cangiotti
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino, I-61029 Urbino, Italy
| | - Mariele Montanari
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | - Stefano Papa
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino, I-61029 Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino, I-61029 Urbino, Italy
| | - Caterina Ciacci
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | | | - Desislava Staneva
- University of Chemical Technology and Metallurgy, BG-1756 Sofia, Bulgaria
| | - Ivo Grabchev
- Sofia University "St. Kliment Ohridski", Faculty of Medicine, BG-1407 Sofia, Bulgaria
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14
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Negro F, Napoletano G, Votino R, Banchelli I, Giorgi L. The issue of infertility in times of COVID-19: what do we know about it? Clin Ter 2021; 172:517-519. [PMID: 34821342 DOI: 10.7417/ct.2021.2368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Couple infertility constitutes a major source of concern and even distress for those involved, affecting roughly 50-80 million people in the world, according to World Health Organization data. There is no denying that medical and technological advancements in the field of as-sisted reproductive technology (ART) are among the greatest and most beneficial achievements of modern medicine. Countless couples have been able to achieve parenthood who in the past could not have, thanks to ART. Infertility itself used to be deemed insurmountable, especially when arising from uterine conditions (referred to as absolute uterine factor infertility, AUFI), neoplastic conditions or major complications affecting reproductive organs during previous pregnancies. The inability to have children is often considered by couples as a failure severely impacting their relationships, due to the unfulfilled biological potential in regard to parenting. However, in addition to its significance as a social problem, infertility is a medical issue which requires a strict and clearly defined path of diagnosis and treatment, particularly in times of COVID-19, when access to essential care has often been delayed with potentially harmful repercussions for patients seeking to achieve parenthood or to keep their fertility.
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Affiliation(s)
- F Negro
- Department of Anatomical, Histological, Forensic, and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - G Napoletano
- Department of Anatomical, Histological, Forensic, and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - R Votino
- Department of Obstetrics and Gynecology, S. Eugenio Hospital, Rome, Italy
| | - I Banchelli
- Department of Obstetrics and Gynecology, Santo Stefano Hospital of Prato, USL Toscana Centro, Italy
| | - L Giorgi
- Department of Obstetrics and Gynecology, Santo Stefano Hospital of Prato, USL Toscana Centro, Italy
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15
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Paderni D, Giorgi L, Macedi E, Formica M, Paoli P, Rossi P, Fusi V. A selective fluorescent probe for gadolinium III in water based on a Pd II-preorganized chromone-receptor. Dalton Trans 2021; 50:15433-15440. [PMID: 34664572 DOI: 10.1039/d1dt01753e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, solution studies, photochemical properties and the X-ray structure of a chromone based fluorescent PdII complex are reported. The ligand contains two chromone units linked as side arms to an ethylenediamine moiety; in the PdII complex the metal ion preorganizes the two hydroxychromone units forming a rigid structure with a negatively charged pocket formed by four oxygen atoms that is able to interact with hard metal cations, such as ions, giving rise to stable bimetallic complexes. Upon interaction with LaIII and GdIII, in particular, the emission intensity at 423 nm increases by a factor of 2 and 8, respectively, while the other rare earth ions quench the fluorescence. Spectrofluorimetric studies on real matrices showed the possibility to use this system as a selective fluorescence probe to detect and trace the presence of Gadolinium in environmental water acting as an OFF-ON chemosensor, with a LOD of 0.4 ppm and a LOQ of 1.2 ppm.
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Affiliation(s)
- Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
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16
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Canonico B, Giorgi L, Nasoni MG, Montanari M, Ambrosi G, Formica M, Ciacci C, Ambrogini P, Papa S, Fusi V, Luchetti F. Synthesis and biological characterization of a new fluorescent probe for vesicular trafficking based on polyazamacrocycle derivative. Biol Chem 2021; 402:1225-1237. [PMID: 34090314 DOI: 10.1515/hsz-2021-0204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/25/2021] [Indexed: 02/03/2023]
Abstract
The fluorescent probes represent an important tool in the biological study, in fact characterization of cellular structures and organelles are an important tool-target for understanding the mechanisms regulating most biological processes. Recently, a series of polyamino-macrocycles based on 1,4,7,10-tetraazacyclododecane was synthesized, bearing one or two NBD units (AJ2NBD·4HCl) useful as sensors for metal cations and halides able to target and to detect apolar environment, as lipid membranes. In this paper, we firstly illustrate the chemical synthesis of the AJ2NBD probe, its electronic absorption spectra and its behavior regarding pH of the environment. Lack of any cellular toxicity and an efficient labelling on fresh, living cells was demonstrated, allowing the use of AJ2NBD in biological studies. In particular, this green fluorescent probe may represent a potential dye for the compartments involved in the endosomal/autophagic pathway. This research's field should benefit from the use of AJ2NBD as a vesicular tracer, however, to ensure the precise nature of vesicles/vacuoles traced by this new probe, other more specific tests are needed.
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Affiliation(s)
- Barbara Canonico
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Maria Gemma Nasoni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Mariele Montanari
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Caterina Ciacci
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Patrizia Ambrogini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Stefano Papa
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
| | - Francesca Luchetti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, I-61029Urbino, Italy
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17
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18
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Giorgi L, Ambrosi G, Paderni D, Conti L, Amatori S, Romagnoli F, Rossi P, Formica M, Macedi E, Giorgi C, Paoli P, Fanelli M, Fusi V. Bis-maltol-polyamine family: structural modifications at strategic positions. Synthesis, coordination and antineoplastic activity of two new ligands. NEW J CHEM 2021. [DOI: 10.1039/d0nj05327a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Substitution at the maltol C6 position affects the antineoplastic and coordination properties of Malten, acting on degradation time, binding ability and biological activity.
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Affiliation(s)
- Luca Giorgi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Gianluca Ambrosi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Daniele Paderni
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Luca Conti
- Department of Chemistry “Ugo Schiff”, University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Stefano Amatori
- Department of Biomolecular Sciences, Molecular Pathology Laboratory “PaoLa” University of Urbino “Carlo Bo”
- 61032 Fano
- Italy
| | - Francesca Romagnoli
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence
- 50139 Florence
- Italy
| | - Mauro Formica
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Eleonora Macedi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Claudia Giorgi
- Department of Chemistry “Ugo Schiff”, University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence
- 50139 Florence
- Italy
| | - Mirco Fanelli
- Department of Biomolecular Sciences, Molecular Pathology Laboratory “PaoLa” University of Urbino “Carlo Bo”
- 61032 Fano
- Italy
| | - Vieri Fusi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
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Moffa A, Giorgi L, Cassano M, Rinaldi V, Natalizia A, Bressi F, Guglielmelli E, Casale M. Non-implantable bone conduction device for hearing loss: a systematic review. J BIOL REG HOMEOS AG 2020; 34:97-110. Technology in Medicine. [PMID: 33386039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
There are different treatment options that employ a bone conduction transmission of the sound, for different types of hearing loss, as well as hearing aids, medical intervention via prostheses and surgically implanted medical devices. A middle ear disease causes a decline in the conductive mechanism of hearing. The current possibilities of compensating Conductive Hearing Loss (CHL) solutions include both surgical and no surgical Bone Conduction Devices (BCDs). Due to the invasiveness of the implantable devices and their specific requirements in terms of the temporal bone anatomy, non-implantable BCDs are in some cases preferred in the clinical routine. The goal of this review is to investigate the beneficial effects and safety of non-implantable BC devices, analysing the different type of solutions found so far. A systematic review was performed to identify all the clinical studies evaluating the use of non-invasive BCDs. A qualitative analysis based on data extracted was conducted. From 37 articles, 11 prospective studies and 1 retrospective study were selected for a full analysis, for a total of 173 patients from 4- to 77-years-old. Eight of these studies included adult patients, while the other four are paediatric studies. All the studies analyse non-implantable BCDs commonly used in case of CHL, sensorineural HL and single side deafness. Three of them analyse an adhesive device, six compare the adhesive device with a sound processor mounted on a support fitted on the head, one compare it also with an implant, one analyse the sound processor mounted on different type of support, and one compare different type of sound processor. All the studies showed advantages from the use of non-invasive BCDs, both on adults and children. The non-invasive BCDs analysed in this review show good results both from the audiological and subjective point of view and could be considered a safe and effective solution for patients suffering from conductive hearing loss, sensorineural hearing loss or single-side deafness. More studies are required to confirm these promising results.
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Affiliation(s)
- A Moffa
- Unit of Integrated Therapies in Otolaryngology, Campus Bio-Medico University, Rome, Italy
- Unit of Otolaryngology, University of Foggia, Foggia, Italy
| | - L Giorgi
- Research Unit of Advanced Robotics and Human-Centered Technologies, Campus Bio-Medico University of Rome, Italy
| | - M Cassano
- Unit of Otolaryngology, University of Foggia, Foggia, Italy
| | - V Rinaldi
- Unit of Integrated Therapies in Otolaryngology, Campus Bio-Medico University, Rome, Italy
| | - A Natalizia
- Unit of Integrated Therapies in Otolaryngology, Campus Bio-Medico University, Rome, Italy
| | - F Bressi
- Unit of Physical Medicine and Rehabilitation, Campus Bio-Medico University of Rome, Italy
| | - E Guglielmelli
- Research Unit of Advanced Robotics and Human-Centered Technologies, Campus Bio-Medico University of Rome, Italy
| | - M Casale
- Unit of Integrated Therapies in Otolaryngology, Campus Bio-Medico University, Rome, Italy
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20
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Rossi P, Macedi E, Formica M, Giorgi L, Paoli P, Fusi V. Hetero-Tetranuclear Cu 2+ /Ca 2+ /Ca 2+ /Cu 2+ Architectures Based On Malten Ligand: Scaffold for Anion Binding. Chempluschem 2020; 85:1179-1189. [PMID: 32500597 DOI: 10.1002/cplu.202000307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/14/2020] [Indexed: 01/05/2023]
Abstract
The hetero-tetranuclear Cu2+ /Ca2+ /Ca2+ /Cu2+ complex obtained with the N,N'-bis((3-hydroxy-4-pyron-2-yl)methyl)-N,N'-dimethylethylendiamine (Malten) ligand has been studied in solid and solution states as scaffold to bind anions. Three crystal structures showing the same metal ions sequence have been examined; they display a tetracharged complex cation neutralized by four monocharged anions. The anions play two different roles: as coordinated (two ClO4 - , Cl- or NO3 - ) or ancillary (two ClO4 - ) guests. The tetranuclear scaffold hosts two anions also in aqueous and ethanol solutions. Spectrophotometric studies in ethanol allowed to determine the addition constant values for Cl- and Br- (Log K1-2 =4.43(4), 4.39(3) for Cl- , 3.80(3), 3.54(2) for Br- ) while the others, although bound, showed lower affinity for the scaffold. Both the crystals and the solutions change their color depending on the added anion, namely pink, dark green or blue in the presence of ClO4 - , Cl- or NO3 - , respectively, thus the presence of the different anions is visible to the naked eye. The hetero-tetranuclear Cu2+ /Ca2+ /Ca2+ /Cu2+ complex is a versatile architecture to be used as scaffold for anion binding.
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Affiliation(s)
- Patrizia Rossi
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, 50139, Florence, Italy
| | - Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, 50139, Florence, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
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21
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Ambrosi G, Fanelli M, Paoli P, Formica M, Paderni D, Rossi P, Micheloni M, Giorgi L, Fusi V. Zn(ii) detection and biological activity of a macrocycle containing a bis(oxadiazole)pyridine derivative as fluorophore. Dalton Trans 2020; 49:7496-7506. [PMID: 32441717 DOI: 10.1039/c9dt03910d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis, photochemical properties, biological effects and the X-ray crystal structure of a fluorescent polyamine macrocycle L are reported. L is a polyamine cyclophane macrocycle in which 2,6-bis(5-(2-methylphenyl)-1,3,4-oxadiazol-2-yl)pyridine (POXAPy) acts as a fluorescent sensor and the polyamine as a metal ion binding unit. L performs as a PET-mediated chemosensor, with a maximum emission wavelength close to 360 nm. This gives rise to a signal that is visible to the naked eye in the blue visible range. L is able to detect the Zn(ii) and Cd(ii) metal ions in an aqueous solution at pH = 7, with the coordination of the ions switching the emission ON through a CHEF effect. In contrast, paramagnetic metal ions like Cu(ii) and Ni(ii) completely quench the already low emission of L at this pH value. L affects the cell survival of a leukemic cellular model (U937) at micromolar concentrations with cell death starting after only 24 h of exposure; starting from a final concentration of 5 μM, L almost completely abrogates the survival of the leukemic cells over 72 h, with a mechanism that is compatible with a genomic DNA interaction.
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Affiliation(s)
- Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino, Via della Stazione 4, I-61029 Urbino, PU, Italy.
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Sabatini L, Palma F, Giorgi L, Andreazzo L, Campana R. Isolation and molecular identification of a strain belonging to the new species Zalaria obscura from a deteriorated wooden artwork. Braz J Microbiol 2020; 51:1241-1246. [PMID: 32157668 DOI: 10.1007/s42770-020-00255-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 02/28/2020] [Indexed: 12/31/2022] Open
Abstract
We report the case of an outdoor deteriorated wooden sculpture of Madonna, completely blackened in the face, and thus suspected of fungal attack. A multi-disciplinary approach, including microbiological analysis, molecular biology, and Fourier transform infrared (FT-IR) spectroscopy, was applied to understand the real nature of the observed alteration. FT-IR showed that the blackening was due to the application of a natural terpene resin subjected to alteration over time. The microbiological assay allowed to isolate a particular black fungus that has been recovered in the vegetative phase, growing as the only species adapted to the examined substrate. Basic Local Alignment Search Tool (BLAST) analysis of the ITS (internal transcribed spacer) region sequence identified the fungus (LS31012019) as Zalaria obscura, a black yeast belonging to the new genus Zalaria, family Dothideales. Overall, this study evidenced the importance of a multi-disciplinary approach to understand the real causes of observed deterioration of artworks. More interestingly, the recovery of a strain identified as Z. obscura from this type of substrate is never reported in the literature and this finding could offer the possibility to investigate the role of this microorganism in the deterioration process of cultural heritage.
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Affiliation(s)
- Luigia Sabatini
- Department of Biomolecular Sciences, Division of Pharmacology and Hygiene, University of Urbino Carlo Bo, Via S. Chiara 27, 61029, Urbino, Italy
| | - Francesco Palma
- Department of Biomolecular Sciences, Division of Pharmacology and Hygiene, University of Urbino Carlo Bo, Via S. Chiara 27, 61029, Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Letizia Andreazzo
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Raffaella Campana
- Department of Biomolecular Sciences, Division of Pharmacology and Hygiene, University of Urbino Carlo Bo, Via S. Chiara 27, 61029, Urbino, Italy.
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Macedi E, Paderni D, Formica M, Conti L, Fanelli M, Giorgi L, Amatori S, Ambrosi G, Valtancoli B, Fusi V. Playing with Structural Parameters: Synthesis and Characterization of Two New Maltol-Based Ligands with Binding and Antineoplastic Properties. Molecules 2020; 25:molecules25040943. [PMID: 32093219 PMCID: PMC7070877 DOI: 10.3390/molecules25040943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/11/2020] [Accepted: 02/14/2020] [Indexed: 11/30/2022] Open
Abstract
Two maltol-based ligands, N,N′-bis((3-hydroxy-4-pyron-2-yl)methyl)-1,4-piperazine (L1) and N,N′,N′-tris((3-hydroxy-4-pyron-2-yl)methyl)-N-methylethylendiamine (L2), were synthesized and characterized. L1 and L2, containing, respectively, two and three maltol units spaced by a diamine fragment, were designed to evaluate how biological and binding features are affected by structural modifications of the parent compound malten. The acid-base behavior and the binding properties towards transition, alkaline-earth (AE) and rare-earth (RE) cations in aqueous solution, studied by potentiometric, UV-Vis and NMR analysis, are reported along with biological studies on DNA and leukemia cells. Both ligands form stable complexes with Cu(II), Zn(II) and Co(II) that were studied as metallo-receptors for AE and RE at neutral pH. L1 complexes are more affected than L2 ones by hard cations, the L1-Cu(II) system being deeply affected by RE. The structural modifications altered the mechanism of action: L1 partially maintains the ability to induce structural alterations of DNA, while L2 provokes single strand (nicks) and to a lesser extent double strand breaks of DNA.
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Affiliation(s)
- Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, via della Stazione 4, 61029 Urbino, Italy; (D.P.); (M.F.); (L.G.); (G.A.)
- Correspondence: (E.M.); (V.F.); Tel.: +39-0722-305-905 (E.M.)
| | - Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, via della Stazione 4, 61029 Urbino, Italy; (D.P.); (M.F.); (L.G.); (G.A.)
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, via della Stazione 4, 61029 Urbino, Italy; (D.P.); (M.F.); (L.G.); (G.A.)
| | - Luca Conti
- Department of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (L.C.); (B.V.)
| | - Mirco Fanelli
- Department of Biomolecular Sciences, Molecular Pathology Laboratory “PaoLa”, University of Urbino “Carlo Bo”, via Arco d’Augusto 2, 61032 Fano, Italy; (M.F.); (S.A.)
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, via della Stazione 4, 61029 Urbino, Italy; (D.P.); (M.F.); (L.G.); (G.A.)
| | - Stefano Amatori
- Department of Biomolecular Sciences, Molecular Pathology Laboratory “PaoLa”, University of Urbino “Carlo Bo”, via Arco d’Augusto 2, 61032 Fano, Italy; (M.F.); (S.A.)
| | - Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, via della Stazione 4, 61029 Urbino, Italy; (D.P.); (M.F.); (L.G.); (G.A.)
| | - Barbara Valtancoli
- Department of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (L.C.); (B.V.)
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, via della Stazione 4, 61029 Urbino, Italy; (D.P.); (M.F.); (L.G.); (G.A.)
- Correspondence: (E.M.); (V.F.); Tel.: +39-0722-305-905 (E.M.)
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Affiliation(s)
- Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Mauro Micheloni
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
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25
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Garau A, Lvova L, Macedi E, Ambrosi G, Aragoni MC, Arca M, Caltagirone C, Coles SJ, Formica M, Fusi V, Giorgi L, Isaia F, Lippolis V, Orton JB, Paolesse R. N 2S 2 pyridinophane-based fluorescent chemosensors for selective optical detection of Cd 2+ in soils. NEW J CHEM 2020. [DOI: 10.1039/d0nj03858j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A fluorescent sensor array for the quantitative determination of Cd2+ in soils based on two N2S2 pyridinophane chemosensors is presented.
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Giorgi L, Nevin A, Comelli D, Frizzi T, Alberti R, Zendri E, Piccolo M, Izzo FC. In-situ technical study of modern paintings - Part 2: Imaging and spectroscopic analysis of zinc white in paintings from 1889 to 1940 by Alessandro Milesi (1856-1945). Spectrochim Acta A Mol Biomol Spectrosc 2019; 219:504-508. [PMID: 31078817 DOI: 10.1016/j.saa.2019.04.084] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/12/2019] [Accepted: 04/29/2019] [Indexed: 06/09/2023]
Abstract
We present a multi-analytical in situ non-invasive study of a series of emblematic paintings by Alessandro Milesi (1856-1945) from the collection of the International Gallery of Modern Art Ca' Pesaro in Venice. Eight paintings dated from 1897 to 1910 were studied with imaging and spectroscopic techniques. White pigments were characterized by a combination of X-ray fluorescence spectroscopy which traced the presence of zinc-based pigments in Milesi's paintings, Raman Spectroscopy, Laser Induced Fluorescence (LIF) Spectroscopy and Time-resolved Luminescence Imaging. Time-resolved analysis of luminescence emissions revealed the nanosecond emission from organic compounds and the slower emission from the luminescent inorganic pigment Zinc Oxide that varied between 1.1 and 1.6 microseconds. In this work, data regarding the distribution of luminescent pigments was acquired with a time-gated imaging detector. Furthermore, differences in emission decay kinetics recorded from different paintings can be ascribed to different paint formulations or origins of the Zinc white in paint.
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Affiliation(s)
- L Giorgi
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, Via Torino 155 b, Venice, Italy
| | - A Nevin
- Istituto di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche (IFN-CNR), Piazza L. da Vinci 32, Milano 20133, Italy; Department of Conservation, University of Gothenburg, Box 130, 40530 Göteborg, Sweden
| | - D Comelli
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, Milano 20133, Italy
| | - T Frizzi
- XGLab S.R.L., Via Conte Rosso 23, I-20134 Milano, Italy
| | - R Alberti
- XGLab S.R.L., Via Conte Rosso 23, I-20134 Milano, Italy
| | - E Zendri
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, Via Torino 155 b, Venice, Italy
| | - M Piccolo
- MUVE-Fondazione Musei Civici Venezia, Italy
| | - F C Izzo
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, Via Torino 155 b, Venice, Italy.
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27
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Giorgi L, Nevin A, Nodari L, Comelli D, Alberti R, Gironda M, Mosca S, Zendri E, Piccolo M, Izzo FC. In-situ technical study of modern paintings part 1: The evolution of artistic materials and painting techniques in ten paintings from 1889 to 1940 by Alessandro Milesi (1856-1945). Spectrochim Acta A Mol Biomol Spectrosc 2019; 219:530-538. [PMID: 31078820 DOI: 10.1016/j.saa.2019.04.083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/12/2019] [Accepted: 04/29/2019] [Indexed: 06/09/2023]
Abstract
A complementary multi-analytical in-situ approach has been adopted for the investigation of a corpus of ten paintings dating from 1889 and 1940 by the Venetian painter Alessandro Milesi (1856-1945), from the collection of the International Gallery of Modern Art Ca' Pesaro in Venice. Analyses were performed in situ with digital imaging, elemental and spectroscopic analysis. The analysis of pigments and binding media and their possible deterioration patterns were studied with a combination of X-Ray Fluorescence (XRF) Spectroscopy, External Reflection- Fourier Transform Infrared Spectroscopy (ER-FTIR) and Raman Spectroscopy. These analytical methods provide information regarding the evolution of the artist's palette and the painting techniques adopted in painting. Data suggest the widespread detection of zinc carboxylates, with implications for conservation and display.
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Affiliation(s)
- L Giorgi
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, Via Torino 155 b, Venice 30173, Italy
| | - A Nevin
- Istituto di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche (IFN-CNR), Piazza Leonardo da Vinci 32, Milano 20133, Italy; Department of Conservation, University of Gothenburg, Box 130, 40530 Göteborg, Sweden
| | - L Nodari
- ICMATE-CNR, Institute for Condensed Matter Chemistry and Technology for Energy, National Research Council (ICMATE-CNR), and INSTM Research Unit, Padua Research Area, C.so Stati Uniti 4, 35127 Padua, Italy
| | - D Comelli
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, Milano 20133, Italy
| | - R Alberti
- XGLab S.R.L., Via Conte Rosso 23, Milano 20134, Italy
| | - M Gironda
- XGLab S.R.L., Via Conte Rosso 23, Milano 20134, Italy
| | - S Mosca
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, Milano 20133, Italy
| | - E Zendri
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, Via Torino 155 b, Venice 30173, Italy
| | - M Piccolo
- MUVE- Fondazione Musei Civici, Venezia 30120, Italy
| | - F C Izzo
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, Via Torino 155 b, Venice 30173, Italy.
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Lvova L, Caroleo F, Garau A, Lippolis V, Giorgi L, Fusi V, Zaccheroni N, Lombardo M, Prodi L, Di Natale C, Paolesse R. A Fluorescent Sensor Array Based on Heteroatomic Macrocyclic Fluorophores for the Detection of Polluting Species in Natural Water Samples. Front Chem 2018; 6:258. [PMID: 30003078 PMCID: PMC6032370 DOI: 10.3389/fchem.2018.00258] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 06/08/2018] [Indexed: 12/18/2022] Open
Abstract
The development of a novel all-solid-state optical sensor array based on heteroatomic macrocyclic fluorophores (diaza-crown ether, metallocorrole and pyridinophans) for the photographic analysis of liquid media, is presented. The sensitivity of the new optical system toward a number of different species (cations: Li+, K+, Na+, NH4+, Mg2+, Ca2+, Co2+, Cu2+, Zn2+, Cd2+, Pb2+ and anions: NO2-, NO3-, Cl−, Br−, HCO3-) was evaluated both in single selective sensor mode and in multisensory arrangement. The satisfactory PLS1 regression models between sensor array optical response and analyte concentration were obtained for Cd2+, Cu2+, Zn2+, and NO2- ions in all the range of tested concentrations. Among these species the highest attention was focused onto detection of cadmium and nitrite ions, for which the detection limits, DL, estimated by 3σ method were found 0.0013 mg/L and 0.21 mg/L respectively, and these values are lower than the corresponding WHO guideline values of 0.003 mg/L (Cd2+) and 2 mg/L (NO2-). The suitability of the developed sensors implemented with familiar devices for signal acquisition (Light Emitting Diode, LED, as light source and a digital camera as a signal detector), and chemometric methods for data treatment to perform fast and low-cost monitoring of species under interest, in real samples of environmental importance, is demonstrated.
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Affiliation(s)
- Larisa Lvova
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
| | - Fabrizio Caroleo
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
| | - Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, Università degli Studi di Urbino, Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, Università degli Studi di Urbino, Urbino, Italy
| | - Nelsi Zaccheroni
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Marco Lombardo
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Luca Prodi
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University "Tor Vergata", Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
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Rossi P, Ciattini S, Formica M, Fusi V, Giorgi L, Macedi E, Micheloni M, Paoli P. 3d-4f-3d trinuclear complexes with di-maltol-polyamine ligands. Solid state structure and solution behaviour. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Formica M, Ambrosi G, Fusi V, Giorgi L, Arca M, Garau A, Pintus A, Lippolis V. CdII/ZnIIdiscrimination using 2,5-diphenyl[1,3,4]oxadiazole based fluorescent chemosensors. NEW J CHEM 2018. [DOI: 10.1039/c8nj00113h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two ditopic PPD based ligands are able to discriminate CdIIover ZnIIin aqueous solution based on the difference in their ionic radii, acting as OFF–ON fluorescent probes.
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Affiliation(s)
- Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino
- I-61029 Urbino
- Italy
| | - Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino
- I-61029 Urbino
- Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino
- I-61029 Urbino
- Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino
- I-61029 Urbino
- Italy
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Anna Pintus
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
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Paoli P, Macedi E, Rossi P, Giorgi L, Formica M, Fusi V. Crystal structure of the Ba II-based Co II-containing one-dimensional coordination polymer poly[[aqua{μ 4-2,2'-[(4,10-dimethyl-1,4,7,10-tetra-aza-cyclo-dodecane-1,7-di-yl)bis(methylidene)]bis-(4-oxo-4 H-pyran-3-olato)}-perchloratocobaltbarium] perchlorate]. Acta Crystallogr E Crystallogr Commun 2017; 73:1806-1811. [PMID: 29250391 PMCID: PMC5730228 DOI: 10.1107/s2056989017015638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 10/26/2017] [Indexed: 11/10/2022]
Abstract
The title compound, {[Ba{Co(H-2L1)}(ClO4)(H2O)]ClO4} n , L1 = 4,10-bis-[(3-hy-droxy-4-pyron-2-yl)meth-yl]-1,7-dimethyl-1,4,7,10-tetra-aza-cyclo-dodeca-ne, is a one-dimensional coordination polymer. The asymmetric unit consists of a {Ba[Co(H-2L1)](ClO4)(H2O)}+ cationic fragment and a non-coordinating ClO4- anion. In the neutral [Co(H-2L1)] moiety, the cobalt ion is hexa-coordinated in a trigonal-prismatic fashion by the surrounding N4O2 donor set. The Ba2+ ion is nine-coordinated and exhibits a distorted [BaO9] monocapped square-anti-prismatic geometry, the six oxygen atoms coming from three distinct [Co(H-2L1)] moieties, while the remaining three vertices are occupied by the oxygen atoms of a bidentate perchlorate anion and a water mol-ecule. A barium-μ2-oxygen motif develops along the a axis, connecting symmetry-related dinuclear BaII-CoII cationic fragments in a wave-like chain, forming a one-dimensional metal coordination polymer. Non-coordinating ClO4- anions are located in the space between the chains. Weak C-H⋯O hydrogen bonds involving both coordinating and non-coordinating perchlorate anions build the whole crystal architecture. To our knowledge, this is the first example of a macrocyclic ligand forming a BaII-based one-dimensional coordination polymer, containing CoII ions surrounded by a N4O2 donor set.
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Affiliation(s)
- Paola Paoli
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Eleonora Macedi
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
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32
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Rossi P, Macedi E, Paoli P, Giorgi L, Formica M, Fusi V. Crystal structure of bis-{μ 2-2,2'-[(4,10-dimethyl-1,4,7,10-tetra-aza-cyclo-dodecane-1,7-di-yl)bis(meth-yl-ene)]bis-(4-oxo-4 H-pyran-3-olato)}dicobalt-calcium bis-(perchlorate) 1.36-hydrate. Acta Crystallogr E Crystallogr Commun 2017; 73:1959-1965. [PMID: 29250424 PMCID: PMC5730261 DOI: 10.1107/s2056989017016693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 11/20/2017] [Indexed: 11/28/2022]
Abstract
The title compound, [CaCo2(C22H30N4O6)2](ClO4)2·1.36H2O or {Ca[Co(H-2L1)]2}·2ClO4·1.36H2O {where L1 is 4,10-bis-[(3-hy-droxy-4-pyron-2-yl)meth-yl]-1,7-dimethyl-1,4,7,10-tetra-aza-cyclo-dodecane}, is a trinuclear complex whose asymmetric unit comprises a quarter of the {Ca[Co(H-2L1)]2}2+ trinuclear complex, half of a perchlorate ion and 0.34-water mol-ecules. In the neutral [Co(H-2L1)] moiety, the cobalt ion is hexa-coordinated in a trigonal-prismatic fashion by the surrounding N4O2 donor set. A Ca2+ cation holds together two neutral [Co(H-2L1)] moieties and is octa-coordinated in a distorted trigonal-dodeca-hedral fashion by the surrounding O atoms belonging to the deprotonated oxide and carbonyl groups of two [Co(H-2L1)] units. The coordination of the CoII cation preorganizes L1 and an electron-rich area forms, which is able to host hard metal ions. The comparison between the present structure and the previously published ones suggests a high versatility of this ligand; indeed, hard metal ions with different nature and dimensions lead to complexes having different stoichiometry (mono- and dinuclear monomers and trinuclear dimers) or even a polymeric structure. The heterotrinuclear CoII-CaII-CoII complexes are connected in three dimensions via weak C-H⋯O hydrogen bonds, which are also responsible for the inter-actions with the perchlorate anions and the lattice water mol-ecules. The perchlorate anion is disordered about a twofold rotation axis and was refined giving the two positions a fixed occupancy factor of 0.5. The crystal studied was refined as a two-component inversion twin [BASF parameter = 0.14 (4)].
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Affiliation(s)
- Patrizia Rossi
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Eleonora Macedi
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
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Paoli P, Rossi P, Ambrosi G, Formica M, Fusi V, Giorgi L, Micheloni M, Macedi E. Structural insights into a versatile macrocyclic family based on 2,5-diphenyl[1,3,4]oxadiazole: a combined X-ray diffraction and computational study. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1369539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Paola Paoli
- Dipartimento di Ingegneria Industriale, Università degli Studi di Firenze, Firenze, Italy
| | - Patrizia Rossi
- Dipartimento di Ingegneria Industriale, Università degli Studi di Firenze, Firenze, Italy
| | - Gianluca Ambrosi
- Dipartimento di Scienze Pure e Applicate, Università di Urbino, Urbino, Italy
| | - Mauro Formica
- Dipartimento di Scienze Pure e Applicate, Università di Urbino, Urbino, Italy
| | - Vieri Fusi
- Dipartimento di Scienze Pure e Applicate, Università di Urbino, Urbino, Italy
| | - Luca Giorgi
- Dipartimento di Scienze Pure e Applicate, Università di Urbino, Urbino, Italy
| | - Mauro Micheloni
- Dipartimento di Scienze Pure e Applicate, Università di Urbino, Urbino, Italy
| | - Eleonora Macedi
- Dipartimento di Ingegneria Industriale, Università degli Studi di Firenze, Firenze, Italy
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Formica M, Fusi V, Giorgi L, Piersanti G, Retini M, Zappia G. Neutral urea-based receptors for phosphates: synthesis and spectrophotometric studies. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Ambrosi G, Formica M, Fusi V, Giorgi L, Macedi E, Micheloni M, Paoli P, Rossi P. A Biphenol-Based Chemosensor for Zn(II) and Cd(II) Metal Ions: Synthesis, Potentiometric Studies, and Crystal Structures. Inorg Chem 2016; 55:7676-87. [PMID: 27439670 DOI: 10.1021/acs.inorgchem.6b01145] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We synthesized and characterized the ligand N,N'-bis[(2,2'-dihydroxybiphen-3-yl)methyl]-N,N'-dimethylethylenediamine (L), which contains two biphenol moieties linked as side arms to an N,N'-dimethylethylenediamine scaffold. The ligand is highly soluble in a 50/50 (v/v) water/ethanol mixture and, in its deprotonated form H-2L(2-), is able to coordinate transition-metal ions such as Ni(II), Zn(II), Cu(II), Cd(II), and Pd(II). The crystal structures of [Ni(H-2L)·2n-BuOH], [Ni(H-2L)·2MeOH], [Cd(H-2L)·2DMF], [Cu(H-2L)(DMF)], and [Pd(H-2L)(DMF)] were also determined and described. Potentiometric titrations were carried out in a mixed solvent with Zn(II), Cu(II), and Ni(II) metal ions to determine the acid-base and stability constants. L was highly fluorescent in the visible range (400 nm). Moreover, its emission intensity increased upon the addition of Zn(II) or Cd(II) ions in an ethanol/water solution and behaved as a chemosensor for the presence of these ions in the solution.
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Affiliation(s)
- Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino , Piazza Rinascimento 6, I-61029 Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino , Piazza Rinascimento 6, I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino , Piazza Rinascimento 6, I-61029 Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino , Piazza Rinascimento 6, I-61029 Urbino, Italy
| | - Eleonora Macedi
- Department of Chemistry and Biology, University of Salerno , via Giovanni Paolo II 132, I-84084 Fisciano, Italy
| | - Mauro Micheloni
- Department of Pure and Applied Sciences, University of Urbino , Piazza Rinascimento 6, I-61029 Urbino, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence , via S. Marta 3, I-50139 Florence, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence , via S. Marta 3, I-50139 Florence, Italy
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Amatori S, Ambrosi G, Errico Provenzano A, Fanelli M, Formica M, Fusi V, Giorgi L, Macedi E, Micheloni M, Paoli P, Rossi P. Pd II and Pt II complexes with a thio-aza macrocycle ligand containing an intercalating fragment: Structural and antitumor activity studies. J Inorg Biochem 2016; 162:154-161. [PMID: 27389827 DOI: 10.1016/j.jinorgbio.2016.06.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 06/11/2016] [Accepted: 06/23/2016] [Indexed: 10/21/2022]
Abstract
Two new PtII and PdII complexes of formula [LMCl2] (M=Pt, Pd) were synthesized and characterized both in solution and solid state. They were obtained using the thio-aza macrocycle 9,18-dimethyl-12,17dithia-9,18,27,28-tetraaaza-29-oxatetracyclo[24.2.1.02,7.020,25]enneicosa-2,4,6,20,22,24,26,281-octaene (L) containing the 2,5-diphenyl [1, 3, 4]oxadiazole as intercalating fragment. MII is coordinated in cis-position by the two S atoms of L. The two crystal structures of [LPtCl2] and [LPdCl2] complexes showed that the MII ion is located outside the macrocyclic cavity. The square planar coordination sphere is fulfilled by two chloride anions in a cisplatin-like arrangement with the chloride leaving groups exposed to the environment. The biological activity of both [LPtCl2] and [LPdCl2], monitored towards a leukemic cellular model (U937), is coherent with their ability to interfere, at different levels, with the DNA structure.
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Affiliation(s)
- Stefano Amatori
- University of Urbino, Molecular Pathology Lab. "PaoLa", Department of Biomolecular Sciences, Arco d'Augusto 2, I-61032 Fano, (PU), Italy
| | - Gianluca Ambrosi
- University of Urbino, Department of Pure and Applied Sciences, Via della Stazione 4, I-61029 Urbino, Italy
| | - Alfredo Errico Provenzano
- University of Urbino, Molecular Pathology Lab. "PaoLa", Department of Biomolecular Sciences, Arco d'Augusto 2, I-61032 Fano, (PU), Italy
| | - Mirco Fanelli
- University of Urbino, Molecular Pathology Lab. "PaoLa", Department of Biomolecular Sciences, Arco d'Augusto 2, I-61032 Fano, (PU), Italy.
| | - Mauro Formica
- University of Urbino, Department of Pure and Applied Sciences, Via della Stazione 4, I-61029 Urbino, Italy
| | - Vieri Fusi
- University of Urbino, Department of Pure and Applied Sciences, Via della Stazione 4, I-61029 Urbino, Italy.
| | - Luca Giorgi
- University of Urbino, Department of Pure and Applied Sciences, Via della Stazione 4, I-61029 Urbino, Italy
| | - Eleonora Macedi
- University of Firenze, Department of Industrial Engineering, Via S. Marta 3, I-50139 Firenze, Italy
| | - Mauro Micheloni
- University of Urbino, Department of Pure and Applied Sciences, Via della Stazione 4, I-61029 Urbino, Italy
| | - Paola Paoli
- University of Firenze, Department of Industrial Engineering, Via S. Marta 3, I-50139 Firenze, Italy
| | - Patrizia Rossi
- University of Firenze, Department of Industrial Engineering, Via S. Marta 3, I-50139 Firenze, Italy
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Sabatini L, Battistelli M, Giorgi L, Iacobucci M, Gobbi L, Andreozzi E, Pianetti A, Franchi R, Bruscolini F. Tolerance to silver of an Aspergillus fumigatus strain able to grow on cyanide containing wastes. J Hazard Mater 2016; 306:115-123. [PMID: 26705888 DOI: 10.1016/j.jhazmat.2015.12.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 12/01/2015] [Accepted: 12/09/2015] [Indexed: 06/05/2023]
Abstract
We studied the strategy of an Aspergillus fumigatus strain able to grow on metal cyanide wastes to cope with silver. The tolerance test revealed that the Minimum Inhibitory Concentration of Ag(I) was 6mM. In 1mM AgNO3 aqueous solution the fungus was able to reduce and sequestrate silver into the cell in the form of nanoparticles as evidenced by the change in color of the biomass and Electron Microscopy observations. Extracellular silver nanoparticle production also occurred in the filtrate solution after previous incubation of the fungus in sterile, double-distilled water for 72h, therefore evidencing that culture conditions may influence nanoparticle formation. The nanoparticles were characterized by UV-vis spectrometry, X-ray diffraction and Energy Dispersion X-ray analysis. Atomic absorption spectrometry revealed that the optimum culture conditions for silver absorption were at pH 8.5.The research is part of a polyphasic study concerning the behavior of the fungal strain in presence of metal cyanides; the results provide better understanding for further research targeted at a rationale use of the microorganism in bioremediation plans, also in view of possible metal recovery. Studies will be performed to verify if the fungus maintains its ability to produce nanoparticles using KAg(CN)2.
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Affiliation(s)
- L Sabatini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy
| | - M Battistelli
- Department of Earth, Life Sciences & Environment, University of Urbino Carlo Bo, Italy
| | - L Giorgi
- Department of Base Sciences and Foundations, Chemistry Section, University of Urbino Carlo Bo, Italy
| | - M Iacobucci
- Department of Earth, Life Sciences & Environment, University of Urbino Carlo Bo, Italy
| | - L Gobbi
- Department of Science and Engineering of Matter, of Environment and Urban Planning, Polytechnic University of Marche, Ancona, Italy
| | - E Andreozzi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy
| | - A Pianetti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy
| | - R Franchi
- Department of Base Sciences and Foundations, Chemistry Section, University of Urbino Carlo Bo, Italy
| | - F Bruscolini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy.
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Andreozzi E, Barbieri F, Ottaviani MF, Giorgi L, Bruscolini F, Manti A, Battistelli M, Sabatini L, Pianetti A. Dendrimers and Polyamino-Phenolic Ligands: Activity of New Molecules Against Legionella pneumophila Biofilms. Front Microbiol 2016; 7:289. [PMID: 27014213 PMCID: PMC4783402 DOI: 10.3389/fmicb.2016.00289] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/23/2016] [Indexed: 12/01/2022] Open
Abstract
Legionnaires’ disease is a potentially fatal pneumonia caused by Legionella pneumophila, an aquatic bacterium often found within the biofilm niche. In man-made water systems microbial biofilms increase the resistance of legionella to disinfection, posing a significant threat to public health. Disinfection methods currently used in water systems have been shown to be ineffective against legionella over the long-term, allowing recolonization by the biofilm-protected microorganisms. In this study, the anti-biofilm activity of previously fabricated polyamino-phenolic ligands and polyamidoamine dendrimers was investigated against legionella mono-species and multi-species biofilms formed by L. pneumophila in association with other bacteria that can be found in tap water (Aeromonas hydrophila, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae). Bacterial ability to form biofilms was verified using a crystal violet colorimetric assay and testing cell viability by real-time quantitative PCR and Plate Count assay. The concentration of the chemicals tested as anti-biofilm agents was chosen based on cytotoxicity assays: the highest non-cytotoxic chemical concentration was used for biofilm inhibition assays, with dendrimer concentration 10-fold higher than polyamino-phenolic ligands. While Macrophen and Double Macrophen were the most active substances among polyamino-phenolic ligands, dendrimers were overall twofold more effective than all other compounds with a reduction up to 85 and 73% of legionella and multi-species biofilms, respectively. Chemical interaction with matrix molecules is hypothesized, based on SEM images and considering the low or absent anti-microbial activity on planktonic bacteria showed by flow cytometry. These data suggest that the studied compounds, especially dendrimers, could be considered as novel molecules in the design of research projects aimed at the development of efficacious anti-biofilm disinfection treatments of water systems in order to minimize legionellosis outbreaks.
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Affiliation(s)
- Elisa Andreozzi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Federica Barbieri
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Maria F Ottaviani
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Francesca Bruscolini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Anita Manti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Michela Battistelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Luigia Sabatini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Urbino, Italy
| | - Anna Pianetti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Urbino, Italy
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Fanelli M, Formica M, Fusi V, Giorgi L, Micheloni M, Paoli P. New trends in platinum and palladium complexes as antineoplastic agents. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.11.004] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Lvova L, Di Natale C, Paolesse R, Giorgi L, Fusi V, Garau A, Lippolis V. Photographic Detection of Cadmium(II) and Zinc(II) Ions. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.proeng.2016.11.117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Potì L, Meloni G, Berrettini G, Fresi F, Foggi T, Secondini M, Giorgi L, Cavaliere F, Hackett S, Petronio A, Nibbs P, Forgan R, Leong A, Masciulli R, Pfander C. Sub-Nyquist field trial using time frequency packed DP-QPSK super-channel within fixed ITU-T grid. Opt Express 2015; 23:16196-16208. [PMID: 26193592 DOI: 10.1364/oe.23.016196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Sub-Nyquist time frequency packing technique was demonstrated for the first time in a super-channel field trial transmission over long-haul distances. The technique allows a limited spectral occupancy even with low order modulation formats. The transmission was successfully performed on a deployed Australian link between Sydney and Melbourne which included 995 km of uncompensated SMF with coexistent traffic. 40 and 100 Gb/s co-propagating channels were transmitted together with the super-channel in a 50 GHz ITU-T grid without additional penalty. The super-channel consisted of eight sub-channels with low-level modulation format, i.e. DP-QPSK, guaranteeing better OSNR robustness and reduced complexity with respect to higher order formats. At the receiver side, coherent detection was used together with iterative maximum-a-posteriori (MAP) detection and decoding. A 975 Gb/s DP-QPSK super-channel was successfully transmitted between Sydney and Melbourne within four 50GHz WSS channels (200 GHz). A maximum potential SE of 5.58 bit/s/Hz was achieved with an OSNR = 15.8 dB, comparable to the OSNR of the installed 100 Gb/s channels. The system reliability was proven through long term measurements. In addition, by closing the link in a loop back configuration, a potential SE∙d product of 9254 bit/s/Hz·km was achieved.
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Lagae L, Meshram C, Giorgi L, Patten A. Effects of adjunctive zonisamide treatment on weight and body mass index in children with partial epilepsy. Acta Neurol Scand 2015; 131:341-6. [PMID: 25659828 DOI: 10.1111/ane.12373] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND Zonisamide has been associated with weight loss in children and adults. AIMS OF THE STUDY To assess the effects of adjunctive zonisamide on weight and body mass index (BMI) in children with partial epilepsy. METHODS A subanalysis was conducted of a Phase III trial and extension study, in which children with partial epilepsy received adjunctive zonisamide (target dose 8 mg/kg/day; maximum 500 mg/day). Changes in weight were correlated with skeletal development and sexual maturation. RESULTS Overall, 179 children (93 male, 86 female; age 6-18 years) received zonisamide (mean duration 370.6 days). Weight loss ≥ 5% was reported for 64 of 179 (35.8%) zonisamide-treated children. Of these, 46.9% were overweight/obese at study entry, compared with 23.4% at study end (P = 0.0007); 48.4% had normal weight at study entry, compared with 65.6% at study end (P = 0.03). Three patients were underweight at study entry, and four more became underweight by study end. No consistent correlations between weight loss and skeletal development or sexual maturation were observed. CONCLUSIONS Approximately one-third of children treated with zonisamide experienced ≥ 5% weight loss. Weight loss was most apparent in children with high baseline BMI values and did not appear to be associated with any consistent effects on growth and development.
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Affiliation(s)
- L. Lagae
- University of Leuven; Leuven Belgium
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Amatori S, Ambrosi G, Fanelli M, Formica M, Fusi V, Giorgi L, Macedi E, Micheloni M, Paoli P, Rossi P. A preorganized metalloreceptor for alkaline earth ions showing calcium versus magnesium selectivity in water: biological activity of selected metal complexes. Chemistry 2014; 20:11048-57. [PMID: 25069710 DOI: 10.1002/chem.201403084] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 11/10/2022]
Abstract
The N,N'-bis[(3-hydroxy-4-pyron-2-yl)methyl]-N,N'-dimethylethylendiamine (Malten = L) forms the highly stable [CuH(-2)L] species in water, in which the converging maltol oxygen atoms form an electron-rich area able to host hard metal ions. When considering the alkaline earth series (AE), the [Cu(H(-2)L)] species binds all metal ions, with the exception of Mg(2+), exhibiting the relevant property to discriminate Ca(2+) versus Mg(2+) at physiological pH 7.4; the binding of the AE metal is visible to the naked eye. The stability constant values of the trinuclear [AE{Cu(H(-2)L)}2](2+) species formed reach the maximum for Ca(2+) (log K=7.7). Ca(2+) also forms a tetranuclear [Ca{Cu(H(-2)L)}]2(4+) species at a high Ca(2+) concentration. Tri- and tetranuclear calcium complexes show blue- and pink-colored crystals, respectively. [Cu(H(-2)L)] is the most active species in inducing DNA alterations. The DNA damages are compatible with its hydrolytic cleavages.
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Affiliation(s)
- Stefano Amatori
- Molecular Pathology Laboratory "PaoLa", Department of Biomolecular Sciences, University of Urbino, Arco d'Augusto 2, I-61032 Fano (PU) (Italy)
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Cappelli C, Duce C, Formica M, Fusi V, Ghezzi L, Giorgi L, Micheloni M, Paoli P, Rossi P, Tiné MR. Cobalt complexes able to bind dioxygen: Thermodynamic studies and DFT calculations. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.12.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Amatori S, Ambrosi G, Borgogelli E, Fanelli M, Formica M, Fusi V, Giorgi L, Macedi E, Micheloni M, Paoli P, Rossi P, Tassoni A. Modulating the Sensor Response to Halide Using NBD-Based Azamacrocycles. Inorg Chem 2014; 53:4560-9. [DOI: 10.1021/ic5001649] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stefano Amatori
- Department of Biomolecular
Sciences, Molecular Pathology Laboratory “PaoLa”, University of Urbino “Carlo Bo”, Via Arco d’Augusto 2, I-61032 Fano, Italy
| | - Gianluca Ambrosi
- Department of Base Sciences and Fundamentals,
Chemistry Section, University of Urbino “Carlo Bo”, P.zza Rinascimento 6, I-61029 Urbino, Italy
| | - Elisa Borgogelli
- Department of Base Sciences and Fundamentals,
Chemistry Section, University of Urbino “Carlo Bo”, P.zza Rinascimento 6, I-61029 Urbino, Italy
| | - Mirco Fanelli
- Department of Biomolecular
Sciences, Molecular Pathology Laboratory “PaoLa”, University of Urbino “Carlo Bo”, Via Arco d’Augusto 2, I-61032 Fano, Italy
| | - Mauro Formica
- Department of Base Sciences and Fundamentals,
Chemistry Section, University of Urbino “Carlo Bo”, P.zza Rinascimento 6, I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Base Sciences and Fundamentals,
Chemistry Section, University of Urbino “Carlo Bo”, P.zza Rinascimento 6, I-61029 Urbino, Italy
| | - Luca Giorgi
- Department of Base Sciences and Fundamentals,
Chemistry Section, University of Urbino “Carlo Bo”, P.zza Rinascimento 6, I-61029 Urbino, Italy
| | - Eleonora Macedi
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, I-50139 Firenze, Italy
| | - Mauro Micheloni
- Department of Base Sciences and Fundamentals,
Chemistry Section, University of Urbino “Carlo Bo”, P.zza Rinascimento 6, I-61029 Urbino, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, I-50139 Firenze, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, I-50139 Firenze, Italy
| | - Aurora Tassoni
- Department of Biomolecular
Sciences, Molecular Pathology Laboratory “PaoLa”, University of Urbino “Carlo Bo”, Via Arco d’Augusto 2, I-61032 Fano, Italy
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De Giorgi V, Papi F, Giorgi L, Savarese I, Verdelli A, Scarfì F, Gandini S. Skin self-examination and the ABCDE rule in the early diagnosis of melanoma: is the game over? Br J Dermatol 2014; 168:1370-1. [PMID: 23738643 DOI: 10.1111/bjd.12250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Guerzoni C, Amatori S, Giorgi L, Manara MC, Landuzzi L, Lollini PL, Tassoni A, Balducci M, Manfrini M, Pratelli L, Serra M, Picci P, Magnani M, Fusi V, Fanelli M, Scotlandi K. An aza-macrocycle containing maltolic side-arms (maltonis) as potential drug against human pediatric sarcomas. BMC Cancer 2014; 14:137. [PMID: 24575739 PMCID: PMC3942616 DOI: 10.1186/1471-2407-14-137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 02/12/2014] [Indexed: 11/10/2022] Open
Abstract
Background Identification of new drugs against paediatric sarcomas represents an urgent clinical need that mainly relies on public investments due to the rarity of these diseases. In this paper we evaluated the in vitro and in vivo efficacy of a new maltol derived molecule (maltonis), belonging to the family of molecules named hydroxypyrones. Methods Maltonis was screened for its ability to induce structural alteration of DNA molecules in comparison to another maltolic molecule (malten). In vitro antitumour efficacy was tested using a panel of sarcoma cell lines, representative of Ewing sarcoma, osteosarcoma and rhabdomyosarcoma, the three most common paediatric sarcomas, and in normal human mesenchymal primary cell cultures. In vivo efficacy was tested against TC-71 Ewing sarcoma xenografts. Results Maltonis, a soluble maltol-derived synthetic molecule, was able to alter the DNA structure, inhibit proliferation and induce apoptotic cell death in paediatric sarcoma cells, either sensitive or resistant to some conventional chemotherapeutic drugs, such as doxorubicin and cisplatin. In addition, maltonis was able to induce: i) p21, p15 and Gadd45a mRNA upregulation; ii) Bcl-2, survivin, CDK6 and CDK8 down-regulation; iii) formation of γ-H2AX nuclear foci; iv) cleavage of PARP and Caspase 3. Two independent in vivo experiments demonstrated the tolerability and efficacy of maltonis in the inhibition of tumour growth. Finally maltonis was not extruded by ABCB1, one of the major determinants of chemotherapy failure, nor appeared to be a substrate of the glutathione-related detoxification system. Conclusions Considering that treatment of poorly responsive patients still suffers for the paucity of agents able to revert chemoresistance, maltonis may be considered for the future development of new therapeutic approaches for refractory metastatic patients.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Mirco Fanelli
- PROMETEO Laboratory, Section of Biomolecular Therapies, RIT Department, Istituto Ortopedico Rizzoli, Bologna 40136, Italy.
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Arca M, Caltagirone C, De Filippo G, Formica M, Fusi V, Giorgi L, Lippolis V, Prodi L, Rampazzo E, Scorciapino MA, Sgarzi M, Zaccheroni N. A fluorescent ratiometric nanosized system for the determination of PdII in water. Chem Commun (Camb) 2014; 50:15259-62. [DOI: 10.1039/c4cc07969h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A fluorescent chemosensor, loaded on dye-doped silica nanoparticles, can be used to detect Pd2+ ions in water with high selectivity toward other cations including the platinum group ones.
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Affiliation(s)
- Massimiliano Arca
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato (CA), Italy
| | - Claudia Caltagirone
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato (CA), Italy
| | - Greta De Filippo
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato (CA), Italy
| | - Mauro Formica
- Department of Base Sciences and Foundations
- University of Urbino
- I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Base Sciences and Foundations
- University of Urbino
- I-61029 Urbino, Italy
| | - Luca Giorgi
- Department of Base Sciences and Foundations
- University of Urbino
- I-61029 Urbino, Italy
| | - Vito Lippolis
- Department of Chemical and Geological Sciences
- University of Cagliari
- 09042 Monserrato (CA), Italy
| | - Luca Prodi
- Department of Chemistry “G. Ciamician”
- University of Bologna
- I-40126 Bologna, Italy
| | - Enrico Rampazzo
- Department of Chemistry “G. Ciamician”
- University of Bologna
- I-40126 Bologna, Italy
| | | | - Massimo Sgarzi
- Department of Chemistry “G. Ciamician”
- University of Bologna
- I-40126 Bologna, Italy
| | - Nelsi Zaccheroni
- Department of Chemistry “G. Ciamician”
- University of Bologna
- I-40126 Bologna, Italy
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49
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Trinka E, Giorgi L, Patten A, Segieth J. Safety and tolerability of zonisamide in elderly patients with epilepsy. Acta Neurol Scand 2013; 128:422-8. [PMID: 23773051 DOI: 10.1111/ane.12162] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To assess the safety/tolerability of zonisamide in elderly patients. MATERIALS & METHODS A pooled analysis of clinical study data from elderly (≥65 years) patients receiving add-on/monotherapy zonisamide for partial seizures was compared with pooled adult (18-65 years) study data. Assessments included treatment-emergent adverse events (TEAEs), clinical laboratory parameters and weight change. RESULTS Data were analyzed from 95 elderly and 1389 adult patients. Incidence of total TEAEs was similar (elderly, 78/95 [82%] vs adult, 1165/1389 [84%]); but lower in elderly versus adult patients for treatment-related TEAEs (53/95 [56%] vs 1010/1389 [73%]), severe TEAEs (11/95 [12%] vs 289/1389 [21%]), serious TEAEs (12/95 [13%] vs 230/1389 [17%]) and TEAEs leading to withdrawal (17/95 [18%] vs 312/1389 [23%]). Most TEAEs were of mild-to-moderate intensity. TEAEs reported more frequently by elderly versus adult patients included fatigue (11/95 [12%] vs 135/1389 [10%]), nasopharyngitis (8/95 [8%] vs 100/1389 [7%]), constipation (7/95 [7%] vs 67/1389 [5%]) and pruritus (6/95 [6%] vs 29/1389 [2%]). The only serious TEAEs reported by ≥2% of elderly patients were 'convulsions' (4/95 [4%] vs 49/1389 [4%]). Three elderly patients died; one death was considered treatment-related. TEAEs leading to discontinuation of ≥2% of elderly patients were dizziness (4/95 [4%]), headache (2/95 [2%]), somnolence (2/95 [2%]) and confusional state (2/95 [2%]). For elderly patients, there were minimal changes in clinical laboratory parameters, no reports of respiratory alkalosis or metabolic acidosis and no significant weight changes. CONCLUSIONS Zonisamide demonstrated a favourable safety/tolerability profile in elderly patients. No new or unexpected safety findings were identified.
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Affiliation(s)
- E. Trinka
- Department of Neurology; Christian Doppler Klinik; Paracelsus Medical University; Salzburg Austria
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50
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Trinka E, Segieth J, Giorgi L. TOLERABILITY AND SAFETY OF ZONISAMIDE IN ELDERLY PATIENTS WITH PARTIAL EPILEPSY: RESULTS OF A POOLED ANALYSIS. J Neurol Neurosurg Psychiatry 2013. [DOI: 10.1136/jnnp-2013-306573.94] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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