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Venuti V, Corsaro C, Stancanelli R, Paciaroni A, Crupi V, Tommasini S, Ventura CA, Majolino D. Analysis of the thermal fluctuations in inclusion complexes of genistein with β-cyclodextrin derivatives. Chem Phys 2019. [DOI: 10.1016/j.chemphys.2018.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Venuti V, Stancanelli R, Acri G, Crupi V, Paladini G, Testagrossa B, Tommasini S, Ventura CA, Majolino D. “Host-guest” interactions in Captisol®/Coumestrol inclusion complex: UV–vis, FTIR-ATR and Raman studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ferro M, Castiglione F, Punta C, Melone L, Panzeri W, Rossi B, Trotta F, Mele A. Anomalous diffusion of Ibuprofen in cyclodextrin nanosponge hydrogels: an HRMAS NMR study. Beilstein J Org Chem 2014; 10:2715-23. [PMID: 25550735 PMCID: PMC4273256 DOI: 10.3762/bjoc.10.286] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 11/06/2014] [Indexed: 12/24/2022] Open
Abstract
Ibuprofen sodium salt (IP) was encapsulated in cyclodextrin nanosponges (CDNS) obtained by cross-linking of β-cyclodextrin with ethylenediaminetetraacetic acid dianhydride (EDTAn) in two different preparations: CDNSEDTA 1:4 and 1:8, where the 1:n notation indicates the CD to EDTAn molar ratio. The entrapment of IP was achieved by swelling the two polymers with a 0.27 M solution of IP in D2O, leading to colourless, homogeneous hydrogels loaded with IP. The molecular environment and the transport properties of IP in the hydrogels were studied by high resolution magic angle spinning (HRMAS) NMR spectroscopy. The mean square displacement (MSD) of IP in the gels was obtained by a pulsed field gradient spin echo (PGSE) NMR pulse sequence at different observation times t d. The MSD is proportional to the observation time elevated to a scaling factor α. The α values define the normal Gaussian random motion (α = 1), or the anomalous diffusion (α < 1, subdiffusion, α > 1 superdiffusion). The experimental data here reported point out that IP undergoes subdiffusive regime in CDNSEDTA 1:4, while a slightly superdiffusive behaviour is observed in CDNSEDTA 1:8. The transition between the two dynamic regimes is triggered by the polymer structure. CDNSEDTA 1:4 is characterized by a nanoporous structure able to induce confinement effects on IP, thus causing subdiffusive random motion. CDNSEDTA 1:8 is characterized not only by nanopores, but also by dangling EDTA groups ending with ionized COO(-) groups. The negative potential provided by such groups to the polymer backbone is responsible for the acceleration effects on the IP anion thus leading to the superdiffusive behaviour observed. These results point out that HRMAS NMR spectroscopy is a powerful direct method for the assessment of the transport properties of a drug encapsulated in polymeric scaffolds. The diffusion properties of IP in CDNS can be modulated by suitable polymer synthesis; this finding opens the possibility to design suitable systems for drug delivery with predictable and desired drug release properties.
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Affiliation(s)
- Monica Ferro
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32 – 20133 Milano Italy
| | - Franca Castiglione
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32 – 20133 Milano Italy
| | - Carlo Punta
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32 – 20133 Milano Italy
| | - Lucio Melone
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32 – 20133 Milano Italy
| | | | - Barbara Rossi
- Elettra - Sincrotrone Trieste, Strada Statale 14 km 163.5, Area Science Park, 34149 Trieste, Italy and Department of Physics, University of Trento, via Sommarive 14, 38123 Povo, Trento, Italy
| | - Francesco Trotta
- Department of Chemistry, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy
| | - Andrea Mele
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32 – 20133 Milano Italy
- CNR-ICRM, Via L. Mancinelli, 7 20131 Milano, Italy
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Bertaut E, Landy D. Improving ITC studies of cyclodextrin inclusion compounds by global analysis of conventional and non-conventional experiments. Beilstein J Org Chem 2014; 10:2630-41. [PMID: 25550724 PMCID: PMC4273236 DOI: 10.3762/bjoc.10.275] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 10/22/2014] [Indexed: 12/19/2022] Open
Abstract
The study of 1:1 cyclodextrin inclusion compounds by isothermal titration calorimetry was explored in a theoretical and experimental point of view to compare the efficiency of conventional and non-conventional experiments. All direct and competitive protocols were described and evaluated in terms of accuracy on both binding constant and inclusion enthalpy. Significant improvement in the calorimetric characterization may be obtained by means of the global analysis of non-conventional experiments coupled to the standard titration protocol. While the titration-release approach proved to be the most accurate strategy for classical complexations, the valuable contribution of other non-conventional experiments was demonstrated for issues concerning weak stability, enthalpy, or solubility.
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Affiliation(s)
- Eléonore Bertaut
- Univ Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
| | - David Landy
- Univ Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
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Determination of thermodynamic values of acidic dissociation constants and complexation constants of profens and their utilization for optimization of separation conditions by Simul 5 Complex. J Chromatogr A 2014; 1364:276-88. [DOI: 10.1016/j.chroma.2014.08.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/20/2014] [Accepted: 08/21/2014] [Indexed: 11/23/2022]
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Crupi V, Fontana A, Giarola M, Guella G, Majolino D, Mancini I, Mariotto G, Paciaroni A, Rossi B, Venuti V. Cyclodextrin-Complexation Effects on the Low-Frequency Vibrational Dynamics of Ibuprofen by Combined Inelastic Light and Neutron Scattering Experiments. J Phys Chem B 2013; 117:3917-26. [DOI: 10.1021/jp400509r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vincenza Crupi
- Department of Physics and Earth
Sciences, University of Messina, Viale
Ferdinando Stagno D’Alcontres 31, 98166 Messina, Italy
| | - Aldo Fontana
- Department of Physics, University of Trento, Via Sommarive 14, 38123 Povo,
Trento, Italy
- IPCF CNR, UOS Roma, I-00185 Roma, Italy
| | - Marco Giarola
- Department of Computer Science, University of Verona, Strada le Grazie 15, 37134 Verona,
Italy
| | - Graziano Guella
- Department of Physics, University of Trento, Via Sommarive 14, 38123 Povo,
Trento, Italy
| | - Domenico Majolino
- Department of Physics and Earth
Sciences, University of Messina, Viale
Ferdinando Stagno D’Alcontres 31, 98166 Messina, Italy
| | - Ines Mancini
- Department of Physics, University of Trento, Via Sommarive 14, 38123 Povo,
Trento, Italy
| | - Gino Mariotto
- Department of Computer Science, University of Verona, Strada le Grazie 15, 37134 Verona,
Italy
| | - Alessandro Paciaroni
- Department of Physics, University of Perugia, Via A. Pascoli, 06123 Perugia,
Italy
| | - Barbara Rossi
- Department of Physics, University of Trento, Via Sommarive 14, 38123 Povo,
Trento, Italy
- Department of Computer Science, University of Verona, Strada le Grazie 15, 37134 Verona,
Italy
| | - Valentina Venuti
- Department of Physics and Earth
Sciences, University of Messina, Viale
Ferdinando Stagno D’Alcontres 31, 98166 Messina, Italy
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Filippa MA, Sancho MI, Gasull EI. Determination of apparent binding constants by NSAIDs-βcyclodextrin complexes: HPLC, phase solubility diagrams and theoretical studies. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0236-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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