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Furia E, Beneduci A, Malacaria L, Fazio A, La Torre C, Plastina P. Modeling the Solubility of Phenolic Acids in Aqueous Media at 37 °C. Molecules 2021; 26:6500. [PMID: 34770909 PMCID: PMC8587167 DOI: 10.3390/molecules26216500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 12/26/2022] Open
Abstract
In this work, the solubility of vanillic, gallic, syringic, p-coumaric, ferulic and caffeic acids was determined at 37 °C under different conditions, namely pure water and two different ionic media, NaCl(aq) and NaClO4(aq), at different ionic strengths (i.e., 0.16, 0.50, 1.0, 2.0 and 3.0 M). The solubility in water of all the acids was found to be higher than that in both of the ionic media. Moreover, the solubility of hydroxycinnamic acids was lower than that of hydroxybenzoic acids. The activity coefficients of neutral species were calculated from these data; this knowledge is necessary when modeling the dependence of equilibrium constants on the ionic strength. Results obtained in this work can be useful for further studies regarding complex formation equilibria between these ligands and bioavailable metal cations.
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Affiliation(s)
- Emilia Furia
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; (E.F.); (L.M.)
| | - Amerigo Beneduci
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; (E.F.); (L.M.)
| | - Luana Malacaria
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; (E.F.); (L.M.)
| | - Alessia Fazio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; (A.F.); (C.L.T.); (P.P.)
| | - Chiara La Torre
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; (A.F.); (C.L.T.); (P.P.)
| | - Pierluigi Plastina
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; (A.F.); (C.L.T.); (P.P.)
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Aiello D, Carnamucio F, Cordaro M, Foti C, Napoli A, Giuffrè O. Ca 2+ Complexation With Relevant Bioligands in Aqueous Solution: A Speciation Study With Implications for Biological Fluids. Front Chem 2021; 9:640219. [PMID: 33718329 PMCID: PMC7953420 DOI: 10.3389/fchem.2021.640219] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/11/2021] [Indexed: 11/13/2022] Open
Abstract
A speciation study on the interaction between Ca2+ and ligands of biological interest in aqueous solution is reported. The ligands under study are l-cysteine (Cys), d-penicillamine (PSH), reduced glutathione (GSH), and oxidized glutathione (GSSG). From the elaboration of the potentiometric experimental data the most likely speciation patterns obtained are characterized by only protonated species with a 1:1 metal to ligand ratio. In detail, two species, CaLH2 and CaLH, for systems containing Cys, PSH, and GSH, and five species, CaLH5, CaLH4, CaLH3, CaLH2, and CaLH, for system containing GSSG, were observed. The potentiometric titrations were performed at different temperatures (15 ≤ t/°C ≤ 37, at I = 0.15 mol L-1). The enthalpy and entropy change values were calculated for all systems, and the dependence of the formation constants of the complex species on the temperature was evaluated. 1H NMR spectroscopy, MALDI mass spectrometry, and tandem mass spectrometry (MS/MS) investigations on Ca2+-ligand solutions were also employed, confirming the interactions and underlining characteristic complexing behaviors of Cys, PSH, GSH, and GSSG toward Ca2+. The results of the analysis of 1H NMR experimental data are in full agreement with potentiometric ones in terms of speciation models and stability constants of the species. MALDI mass spectrometry and tandem mass spectrometry (MS/MS) analyses confirm the formation of Ca2+-L complex species and elucidate the mechanism of interaction. On the basis of speciation models, simulations of species formation under conditions of some biological fluids were reported. The sequestering ability of Cys, PSH, GSH, and GSSG toward Ca2+ was evaluated under different conditions of pH and temperature and under physiological condition.
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Affiliation(s)
- Donatella Aiello
- Dipartimento di Chimica e Tecnologie Chimiche, Università Della Calabria, Arcavacata di Rende, Italy
| | - Federica Carnamucio
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche Ed Ambientali, Università di Messina, Messina, Italy
| | - Massimiliano Cordaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche Ed Ambientali, Università di Messina, Messina, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche Ed Ambientali, Università di Messina, Messina, Italy
| | - Anna Napoli
- Dipartimento di Chimica e Tecnologie Chimiche, Università Della Calabria, Arcavacata di Rende, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche Ed Ambientali, Università di Messina, Messina, Italy
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Chillè D, Aiello D, Grasso GI, Giuffrè O, Napoli A, Sgarlata C, Foti C. Complexation of As(III) by phosphonate ligands in aqueous fluids: Thermodynamic behavior, chemical binding forms and sequestering abilities. J Environ Sci (China) 2020; 94:100-110. [PMID: 32563473 DOI: 10.1016/j.jes.2020.03.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/24/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
In recent years, the contamination of water by arsenic reached alarming levels in many countries of the world, attracting the interest of many researchers engaged in testing methodologies able to remove this harmful pollutant. An important aspect that must be taken into consideration is the possibility to find arsenic in different chemical forms which could require different approaches for its removal. At this aim, a speciation analysis appears to be crucial for better understanding the behavior of arsenic species in aqueous solutions, especially in presence of compounds with marked chelating properties. Phosphonates can be identified as good sequestering agents and, at this purpose, this manuscript intends to investigate the interaction of As(III) with three phosphonic acids derived from nitrilotriacetic acid (NTA) by replacements of one (N-(Phosphonomethyl) iminodiacetic acid, NTAP), two (N,N-Bis-(phosphonomethyl) glycine, NTA2P) and three (Nitrilotri(methylphosphonic acid), NTA3P) carboxylic groups with the same number of phosphonate groups. An in-depth potentiometric and calorimetric investigation allowed to determine speciation models featured by simple ML, MLHi and ML(OH) species. A complete thermodynamic characterization of the systems is reported together with the definition of coordination mode by mass spectrometry measurements. On the light of the speciation models, the possibility of using these ligands in arsenic removal techniques was assessed by determining the pL0.5 (the concentration of ligand able to remove the 50% of metal ion present in trace). All ligands show a good sequestering ability, in particular under the conditions of fresh water, following the trend NTA3P > NTA2P > NTAP.
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Affiliation(s)
- Donatella Chillè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Donatella Aiello
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Giuseppa Ida Grasso
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Anna Napoli
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Carmelo Sgarlata
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
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Interaction of Ampicillin and Amoxicillin with Mn 2+: A Speciation Study in Aqueous Solution. Molecules 2020; 25:molecules25143110. [PMID: 32650411 PMCID: PMC7397012 DOI: 10.3390/molecules25143110] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 11/17/2022] Open
Abstract
A potentiometric and UV spectrophotometric investigation on Mn2+-ampicillin and Mn2+-amoxicillin systems in NaCl aqueous solution is reported. The potentiometric measurements were carried out under different conditions of temperature (15 ≤ t/°C ≤ 37). The obtained speciation pattern includes two species for both the investigated systems. More in detail, for system containing ampicillin MLH and ML species, for that containing amoxicillin, MLH2 and MLH ones. The spectrophotometric findings have fully confirmed the results obtained by potentiometry for both the systems, in terms of speciation models as well as the stability constants of the formed species. Enthalpy change values were calculated via the dependence of formation constants of the species on temperature. The sequestering ability of ampicillin and amoxicillin towards Mn2+ was also evaluated under different conditions of pH and temperature via pL0.5 empirical parameter (i.e., cologarithm of the ligand concentration required to sequester 50% of the metal ion present in traces).
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Study of the coordination of ortho-tyrosine and trans-4-hydroxyproline with aluminum(III) and iron(III). J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.074] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Cardiano P, De Stefano C, Foti C, Giacobello F, Giuffrè O, Sammartano S. Sequestration of HEDPA , NTA and phosphonic NTA derivatives towards Al 3+ in aqueous solution. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Cardiano P, Foti C, Giacobello F, Giuffrè O, Sammartano S. Study of Al 3+ interaction with AMP, ADP and ATP in aqueous solution. Biophys Chem 2018; 234:42-50. [PMID: 29407770 DOI: 10.1016/j.bpc.2018.01.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 01/22/2018] [Accepted: 01/22/2018] [Indexed: 12/24/2022]
Abstract
The interaction of Al3+ and nucleotide ligands, namely adenosine-5'-monophosphate, (AMP), adenosine-5'-diphosphate, (ADP), adenosine-5'-triphosphate, (ATP), has been studied in aqueous solution at T = 298.15 K and I = 0.15 mol L-1 in NaCl (only for Al3+-ATP system at I = 0.1 mol L-1). Formation constants and speciation models for the species formed are discussed on the basis of potentiometric results. The speciation models found for the three systems include ML and ML2 species in all the cases, and for Al3+-ADP and ATP systems, MLH, MLOH and ML2OH species as well. The formation constant value for ML species shows the trend, AMP < ADP < ATP. 1H NMR spectroscopy was also employed for the study of Al3+-ATP system. The 1H NMR results are in agreement with the speciation model obtained from analysis of potentiometric titration data, confirming the stabilities of the main species. Enthalpy change values were obtained by titration calorimetry; for the main Al3+-ATP species (at T = 298.15 K and I = 0.1 mol L-1 in NaCl), they resulted always higher than zero, as typical for hard-hard interactions. The dependence of formation constants on ionic strength over the range I = 0.1 to 1 mol L-1 in NaCl is also reported for Al3+-ATP system. The sequestering ability of the nucleotides under study towards Al3+ was also evaluated by the empirical parameter pL0.5.
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Affiliation(s)
- Paola Cardiano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Fausta Giacobello
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Silvio Sammartano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
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Furia E, Beneduci A, Russo N, Marino T. Structural characterization of aluminium(iii) and iron(iii) complexes of coumarinic acid in aqueous solutions from combined experimental and theoretical investigations. NEW J CHEM 2018. [DOI: 10.1039/c8nj01244j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Al(iii) ion forms bidentate complexes involving a 6-membered ring by binding both the carboxyl oxygens of the ligand. In contrast, the Fe(iii) ion preferentially forms monodentate tetrahedral complexes.
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Affiliation(s)
- Emilia Furia
- Department of Chemistry and Chemical Technologies
- University of Calabria
- Arcavacata di Rende (CS)
- Italy
| | - Amerigo Beneduci
- Department of Chemistry and Chemical Technologies
- University of Calabria
- Arcavacata di Rende (CS)
- Italy
| | - Nino Russo
- Department of Chemistry and Chemical Technologies
- University of Calabria
- Arcavacata di Rende (CS)
- Italy
| | - Tiziana Marino
- Department of Chemistry and Chemical Technologies
- University of Calabria
- Arcavacata di Rende (CS)
- Italy
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9
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Cardiano P, Giacobello F, Giuffrè O, Sammartano S. Thermodynamic and spectroscopic study of Al 3+ interaction with glycine, l -cysteine and tranexamic acid in aqueous solution. Biophys Chem 2017; 230:10-19. [DOI: 10.1016/j.bpc.2017.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/07/2017] [Accepted: 08/07/2017] [Indexed: 01/05/2023]
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10
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Cardiano P, Foti C, Giuffrè O. Removal of di- and tri-alkyltin(IV) compounds by polyphosphonate ligand: A speciation perspective. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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11
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Cardiano P, Crea F, Foti C, Giuffrè O, Sammartano S. Potentiometric, UV and 1H NMR study on the interaction of Cu 2+ with ampicillin and amoxicillin in aqueous solution. Biophys Chem 2017; 224:59-66. [PMID: 28410941 DOI: 10.1016/j.bpc.2017.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 03/27/2017] [Accepted: 04/03/2017] [Indexed: 12/13/2022]
Abstract
A potentiometric, UV and 1H NMR study on Cu2+-ampicillin [(2S,5R,6R)-6-([(2R)-2-amino-2-phenylacetyl]amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid] and -amoxicillin [(2S,5R,6R)-6-{[(2R)-2-amino-2-(4-hydroxyphenyl)-acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-24-carboxylic acid] systems in NaCl aqueous solution at I=0.15molL-1 and t=25°C is reported. On the basis of potentiometric results two speciation models were proposed for each system. It was found that spectrophotometric and 1H NMR measurements are essential for selecting the most reliable speciation models. They included ML, MLOH and ML(OH)2 species in both systems and, only for Cu2+-ampicillin, also MLH species. The stability constants obtained by UV and 1H NMR titrations were comparable to the ones calculated by potentiometry. The sequestering ability of the ligands under study towards Cu2+ by pL0.5 empiric parameter (ligand concentration required to sequester 50% of the metal cation present in traces) at several pH values was calculated as well. For ampicillin and amoxicillin, pL0.5=7.19 and 6.67, respectively, at physiological pH, I=0.15molL-1 and t=25°C were obtained.
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Affiliation(s)
- Paola Cardiano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Francesco Crea
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Silvio Sammartano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
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Potentiometric, UV and 1H NMR study on the interaction of penicillin derivatives with Zn(II) in aqueous solution. Biophys Chem 2017; 223:1-10. [PMID: 28183008 DOI: 10.1016/j.bpc.2017.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/09/2017] [Accepted: 01/24/2017] [Indexed: 01/17/2023]
Abstract
The interaction of Zn(II) with ampicillin [(2S,5R,6R)-6-([(2R)-2-amino-2-phenylacetyl]amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2- carboxylic acid] and amoxicillin [(2S,5R,6R)-6-{[(2R)-2-amino-2-(4-hydroxyphenyl)-acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-24-carboxylic acid] in NaCl aqueous solution at different ionic strengths and at t=25°C was investigated by potentiometric, UV and 1H NMR techniques. Fairly similar speciation models were obtained for the two systems. At I=0.15molL-1, two different sets of measurements, at low and high concentrations, were carried out. For the Zn2+-amoxicillin system, the Zn2L2(OH)2 species was obtained in the set of measurements at high concentration. The spectrophotometric and 1H NMR results thus obtained are fully consistent with the speciation models found from potentiometric investigations, confirming the formation as well as the relative stability of the complex species. The dependence of the stability constants on the ionic strength was modeled by means of the Debye-Hückel and SIT (Specific ion Interaction Theory) approaches, and the parameter that accounts for the variation of the stability constants with the ionic strength and the specific ion interaction parameters were determined for all the ionic species. The sequestering ability of the ligands towards Zn2+ was evaluated by determining the pL0.5 parameter at different ionic strengths. It resulted that the sequestering ability of ampicillin is higher of ~0.5 order of magnitude with respect to amoxicillin.
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Cardiano P, Cigala RM, Cordaro M, De Stefano C, Milea D, Sammartano S. On the complexation of metal cations with “pure” diethylenetriamine-N,N,N′,N′′,N′′-pentakis(methylenephosphonic) acid. NEW J CHEM 2017. [DOI: 10.1039/c7nj00118e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexation of various metal cations by DTPMA obtained by an efficient synthetic procedure has been investigated, assessing its sequestering ability and speciation in real systems.
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Affiliation(s)
- Paola Cardiano
- Dipartimento di Scienze Chimiche
- Biologiche
- Farmaceutiche ed Ambientali
- Università di Messina
- 98166 Messina
| | - Rosalia Maria Cigala
- Dipartimento di Scienze Chimiche
- Biologiche
- Farmaceutiche ed Ambientali
- Università di Messina
- 98166 Messina
| | - Massimiliano Cordaro
- Dipartimento di Scienze Chimiche
- Biologiche
- Farmaceutiche ed Ambientali
- Università di Messina
- 98166 Messina
| | - Concetta De Stefano
- Dipartimento di Scienze Chimiche
- Biologiche
- Farmaceutiche ed Ambientali
- Università di Messina
- 98166 Messina
| | - Demetrio Milea
- Dipartimento di Scienze Chimiche
- Biologiche
- Farmaceutiche ed Ambientali
- Università di Messina
- 98166 Messina
| | - Silvio Sammartano
- Dipartimento di Scienze Chimiche
- Biologiche
- Farmaceutiche ed Ambientali
- Università di Messina
- 98166 Messina
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Cardiano P, Giacobello F, Giuffrè O, Sammartano S. Thermodynamics of Al3+-thiocarboxylate interaction in aqueous solution. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.077] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mridula, Nath M. Equilibrium and Multinuclear NMR Spectroscopic Studies of Di- and Trimethyltin(IV) Moieties with Hydroxycarboxylic Acids in Aqueous Medium. J SOLUTION CHEM 2016. [DOI: 10.1007/s10953-016-0448-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Crea F, Falcone G, Foti C, Giuffrè O, Materazzi S. Thermodynamic data for Pb2+and Zn2+sequestration by biologically important S-donor ligands, at different temperatures and ionic strengths. NEW J CHEM 2014. [DOI: 10.1039/c4nj00830h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thermodynamic picture is reported for cys–Pb2+, psh–Pb2+, gsh–Pb2+, and gsh–Zn2+systems, and equilibrium constants can be predicted for any experimental condition.
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Affiliation(s)
- Francesco Crea
- Dipartimento di Scienze Chimiche
- Università di Messina
- 98166 Messina, Italy
| | - Gabriella Falcone
- Dipartimento di Scienze Chimiche
- Università di Messina
- 98166 Messina, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche
- Università di Messina
- 98166 Messina, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche
- Università di Messina
- 98166 Messina, Italy
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Furia E, Aiello D, Di Donna L, Mazzotti F, Tagarelli A, Thangavel H, Napoli A, Sindona G. Mass spectrometry and potentiometry studies of Pb(ii)–, Cd(ii)– and Zn(ii)–cystine complexes. Dalton Trans 2014; 43:1055-62. [DOI: 10.1039/c3dt52255e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Cardiano P, Falcone G, Foti C, Giuffrè O, Napoli A. Binding ability of glutathione towards alkyltin(IV) compounds in aqueous solution. J Inorg Biochem 2013; 129:84-93. [DOI: 10.1016/j.jinorgbio.2013.09.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 09/04/2013] [Accepted: 09/05/2013] [Indexed: 11/16/2022]
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Falcone G, Foti C, Gianguzza A, Giuffrè O, Napoli A, Pettignano A, Piazzese D. Sequestering ability of some chelating agents towards methylmercury(II). Anal Bioanal Chem 2012; 405:881-93. [DOI: 10.1007/s00216-012-6336-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 07/31/2012] [Accepted: 08/06/2012] [Indexed: 10/27/2022]
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Gianguzza A, Giuffrè O, Piazzese D, Sammartano S. Aqueous solution chemistry of alkyltin(IV) compounds for speciation studies in biological fluids and natural waters. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2011.06.027] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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