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Romanini M, Macovez R, Valenti S, Noor W, Tamarit JL. Dielectric Spectroscopy Studies of Conformational Relaxation Dynamics in Molecular Glass-Forming Liquids. Int J Mol Sci 2023; 24:17189. [PMID: 38139017 PMCID: PMC10743228 DOI: 10.3390/ijms242417189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
We review experimental results obtained with broadband dielectric spectroscopy concerning the relaxation times and activation energies of intramolecular conformational relaxation processes in small-molecule glass-formers. Such processes are due to the interconversion between different conformers of relatively flexible molecules, and generally involve conformational changes of flexible chain or ring moieties, or else the rigid rotation of planar groups, such as conjugated phenyl rings. Comparative analysis of molecules possessing the same (type of) functional group is carried out in order to test the possibility of assigning the dynamic conformational isomerism of given families of organic compounds to the motion of specific molecular subunits. These range from terminal halomethyl and acetyl/acetoxy groups to both rigid and flexible ring structures, such as the planar halobenzene cycles or the buckled saccharide and diazepine rings. A short section on polyesters provides a generalisation of these findings to synthetic macromolecules.
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Affiliation(s)
| | | | | | | | - Josep Lluís Tamarit
- Grup de Caracterització de Materials, Departament de Física and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona East School of Engineering (EEBE), Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain; (M.R.); (R.M.); (S.V.); (W.N.)
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2
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Łucak K, Kramarczyk D, Janus O, Pawlus S. How differences in the molecular structure of monohydroxy alcohols affect the tendency to crystallization. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2022; 45:64. [PMID: 35917038 DOI: 10.1140/epje/s10189-022-00215-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
The tendency to crystallize was studied in the selected monohydroxy alcohols: 1-chloro-2-methyl-2-propanol, 1-chloro-2-propanol, 3-chloro-1-propanol, and 8-chloro-1-octanol. Performed calorimetric measurements have proved that the differences in structures of tested alcohols influence the tendency to crystallization. At a sufficiently fast heating rate, no crystallization was observed in the case of 1-chloro-2-propanol and 3-chloro-1-propanol, contrary to other two alcohols. The obtained results suggest that elongation of the alkyl chain or adding a methyl group to the hydrocarbon backbone increases the susceptibility to crystallization.
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Affiliation(s)
- Kinga Łucak
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland.
| | - Daniel Kramarczyk
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland
| | - Oliwia Janus
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland
| | - Sebastian Pawlus
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland
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3
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Drzewicz A, Juszyńska-Gałązka E, Jasiurkowska-Delaporte M, Kula P. Insight into cold- and melt crystallization phenomena of a smectogenic liquid crystal. CrystEngComm 2022. [DOI: 10.1039/d2ce00224h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper describes the insight into the different nature of cold- and melt crystallization kinetics of a smectogenic liquid crystal.
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Affiliation(s)
- Anna Drzewicz
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Ewa Juszyńska-Gałązka
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
- Osaka University, 565-0871 Osaka, Japan
| | | | - Przemysław Kula
- Institute of Chemistry, Military University of Technology, Kaliskiego 2, 00-908 Warszawa, Poland
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4
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Drzewicz A, Jasiurkowska-Delaporte M, Juszyńska-Gałązka E, Gałązka M, Zając W, Kula P. Effect of high pressure on relaxation dynamics and crystallization kinetics of chiral liquid crystal in its smectic phase. Phys Chem Chem Phys 2021; 23:17466-17478. [PMID: 34355715 DOI: 10.1039/d1cp01751a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The impact of high pressure on molecular dynamics and the crystallization process in the smectic phase with antiferroelectric properties of partially fluorinated liquid crystal (S)-4'-(1-methyloctyloxycarbonyl)biphenyl-4-yl-4-[7-(2,2,3,3,4,4,4-heptafluorobutoxy)heptyl-1-oxy]-benzoate (3F7HPhH7) was studied by broadband dielectric spectroscopy (BDS). By analyzing dielectric spectra measured under isobaric and isothermal conditions, the changes of the activation volume vs. temperature and the activation enthalpy vs. pressure have been determined to better understand the molecular system's behaviour in terms of its thermodynamic properties. The isothermal and isobar crystallization was studied by a BDS method along the trajectory of constant relaxation time τ on the (T, p) plane. The kinetics of this process was compared to that at ambient pressure, derived from the results of differential scanning calorimetry (DSC) and polarized optical microscopy (POM). The melt crystallization depends primarily on the formation of nuclei with the activation energy of approx. 50 kJ mol-1. This energy corresponds with the intramolecular movements of the carbonyl group in the rigid core. The behaviour of the apparent activation energies suggests that this process becomes easier with the progressive crystallized volume fractions. The obtained values of the Avrami exponent nA suggest that the crystal growth is three-dimensional. Additionally, we successfully used the scaling of dielectric response for experimental data. The scaling of the dielectric relaxation processes indicates that the dynamics and the behaviour of dielectric permittivity have the same origin for all phases regardless of the change in temperature and/or pressure.
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Affiliation(s)
- Anna Drzewicz
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Kraków, Poland.
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5
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Kamińska E, Minecka A, Tarnacka M, Hachuła B, Kamiński K, Paluch M. Influence of Annealing in the Close Vicinity of Tg on the Reorganization within Dimers and Its Impact on the Crystallization Kinetics of Gemfibrozil. Mol Pharm 2020; 17:990-1000. [PMID: 31961694 PMCID: PMC7588139 DOI: 10.1021/acs.molpharmaceut.9b01244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, broadband dielectric spectroscopy (BDS) has been applied to study the molecular dynamics and crystallization kinetics of the antihyperlipidemic active pharmaceutical ingredient (API), gemfibrozil (GEM), as well as its deuterated (dGEM) and methylated (metGEM) derivatives, characterized by different types and strengths of intermolecular interactions. Moreover, calorimetric and infrared measurements have been carried out to characterize the thermal properties of examined samples and to probe a change in the H-bonding pattern in GEM, respectively. We found that the dielectric spectra of all examined compounds, collected below the glass transition temperature (Tg), reveal the presence of two secondary relaxations (β, γ). According to the coupling model (CM) predictions, it was assumed that the slower process (β) is of JG type, whereas the faster one (γ) has an intramolecular origin. Interestingly, the extensive crystallization kinetics measurements performed after applying two paths, i.e., the standard procedure (cooling and subsequently heating up to the appropriate temperature, Tc), as well as annealing at two temperatures in the vicinity of Tg and further heating up to Tc, showed that the annealing increases the crystallization rate in the case of native API, while the thermal history of the sample has no significant impact on the pace of this process in the two derivatives of GEM. Analysis of the dielectric strength (Δε) of the α-process during annealing, together with the results of Fourier transform infrared spectroscopy (FTIR) measurements, suggested that the reorganization within dimeric structures formed between the GEM molecules is responsible for the observed behavior. Importantly, our results differ from those obtained by Tominaka et al. (Tominaka, S.; Kawakami, K.; Fukushima, M.; Miyazaki, A.Physical Stabilization of Pharmaceutical Glasses Based on Hydrogen Bond Reorganization under Sub-Tg Temperature Mol. Pharm. 2017 14 264 273 10.1021/acs.molpharmaceut.6b00866.), who demonstrated that the sub-Tg annealing of ritonavir (RTV), which is able to form extensive supramolecular hydrogen bonds, protects this active substance against crystallization. Therefore, based on these contradictory reports, one can hypothesize that materials forming H-bonded structures, characterized by varying architecture, may behave differently after annealing in the vicinity of the glass transition temperature.
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Affiliation(s)
- Ewa Kamińska
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Aldona Minecka
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Magdalena Tarnacka
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Barbara Hachuła
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Kamil Kamiński
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
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6
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Nowok A, Kuś P, Dulski M, Kusz J, Książek M, Zubko M, Szeremeta AZ, Pawlus S. Role of intermolecular interactions and conformational changes in the polymorphism and vitrification process of 2,2′′-bis-substituted para-terphenyls. CrystEngComm 2020. [DOI: 10.1039/d0ce00351d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conformational diversity of 2,2′′-bis-substituted para-terphenyls leads to polymorphism and contributes to their unique vitrification abilities.
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Affiliation(s)
- Andrzej Nowok
- August Chełkowski Institute of Physics
- University of Silesia in Katowice
- 41-500 Chorzów
- Poland
| | - Piotr Kuś
- Institute of Chemistry
- University of Silesia in Katowice
- 40-003 Katowice
- Poland
| | - Mateusz Dulski
- Institute of Materials Engineering
- University of Silesia in Katowice
- 41-500 Chorzów
- Poland
| | - Joachim Kusz
- August Chełkowski Institute of Physics
- University of Silesia in Katowice
- 41-500 Chorzów
- Poland
| | - Maria Książek
- August Chełkowski Institute of Physics
- University of Silesia in Katowice
- 41-500 Chorzów
- Poland
| | - Maciej Zubko
- Institute of Materials Engineering
- University of Silesia in Katowice
- 41-500 Chorzów
- Poland
- Department of Physics
| | - Anna Z. Szeremeta
- August Chełkowski Institute of Physics
- University of Silesia in Katowice
- 41-500 Chorzów
- Poland
| | - Sebastian Pawlus
- August Chełkowski Institute of Physics
- University of Silesia in Katowice
- 41-500 Chorzów
- Poland
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7
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Minecka A, Kamińska E, Tarnacka M, Jurkiewicz K, Talik A, Wolnica K, Dulski M, Kasprzycka A, Spychalska P, Garbacz G, Kamiński K, Paluch M. Does the molecular mobility and flexibility of the saccharide ring affect the glass-forming ability of naproxen in binary mixtures? Eur J Pharm Sci 2020; 141:105091. [PMID: 31655208 DOI: 10.1016/j.ejps.2019.105091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/15/2022]
Abstract
In this paper, we studied the impact of saccharides having a similar backbone but differing in the degree of freedom, local molecular mobility, flexibility of the ring and intermolecular interactions on the glass-forming ability (GFA) of naproxen (NAP) in binary mixtures. For this purpose, a series of methyl and acetyl derivatives of glucose (GLS) and anhydroglucose (anhGLS), as well as neat anhGLS have been used to produce homogeneous solid dispersions (SDs) of varying molar concentration of examined active pharmaceutical ingredient (API). Systematic measurements with the use of Differential Scanning Calorimetry (DSC) and Broadband Dielectric Spectroscopy (BDS) enabled us to determine the phase transitions, homogeneity and molecular mobility of the investigated binary mixtures as well as the impact of excipient on the crystallization tendency of NAP. It turned out that acetylated glucose (acGLS), one of the most mobile and flexible saccharides of all examined herein materials, is the best excipient enhancing the GFA of studied API. Although, it should be noted that upon storage at room temperature, we observed the recrystallization of NAP from binary mixtures. Interestingly, API always crystallized to the initial polymorphic form, as shown by X-ray diffraction (XRD) investigations. Finally, since additional measurements with the use of Fourier Transform Infrared (FTIR) Spectroscopy clearly indicated that there are no significant differences in the intermolecular interactions in the systems composed of NAP and all examined saccharides, one can postulate that the mobility and ring flexibility of the matrix have, , the most important impact on the crystallization tendency of NAP upon cooling. Consequently, it seems that in some cases, more mobile/flexible matrices can be a much better choice to enhance the glass-forming ability of studied pharmaceutical.
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Affiliation(s)
- A Minecka
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland.
| | - E Kamińska
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland.
| | - M Tarnacka
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K Jurkiewicz
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - A Talik
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K Wolnica
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - M Dulski
- Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Institute of Material Sciences, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - A Kasprzycka
- Department of Chemistry, Silesian Technical University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; Biotechnology Centre, Silesian Technical University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - P Spychalska
- Biotechnology Centre, Silesian Technical University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - G Garbacz
- Physiolution GmbH, Walther-Rathenau-Str. 49a, 17489 Greifswald, Germany
| | - K Kamiński
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - M Paluch
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
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8
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Valenti S, Romanini M, Franco L, Puiggalí J, Tamarit JL, Macovez R. Tuning the Kinetic Stability of the Amorphous Phase of the Chloramphenicol Antibiotic. Mol Pharm 2018; 15:5615-5624. [DOI: 10.1021/acs.molpharmaceut.8b00786] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sofia Valenti
- Grup de Caracterització de Materials, Departament de Física, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
- Synthetic Polymers: Structure and Properties. Biodegradable Polymers, Departament de Enginyeria Química, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
| | - Michela Romanini
- Grup de Caracterització de Materials, Departament de Física, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
| | - Lourdes Franco
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
- Synthetic Polymers: Structure and Properties. Biodegradable Polymers, Departament de Enginyeria Química, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
| | - Jordi Puiggalí
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
- Synthetic Polymers: Structure and Properties. Biodegradable Polymers, Departament de Enginyeria Química, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
| | - Josep Lluis Tamarit
- Grup de Caracterització de Materials, Departament de Física, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
| | - Roberto Macovez
- Grup de Caracterització de Materials, Departament de Física, Universitat Politècnica de Catalunya, EEBE, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal-Besòs, Av. Eduard Maristany 10-14, E-08019 Barcelona, Spain
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9
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Minecka A, Kaminska E, Tarnacka M, Grudzka-Flak I, Bartoszek M, Wolnica K, Dulski M, Kaminski K, Paluch M. Impact of Intermolecular Interactions, Dimeric Structures on the Glass Forming Ability of Naproxen, and a Series of Its Derivatives. Mol Pharm 2018; 15:4764-4776. [DOI: 10.1021/acs.molpharmaceut.8b00725] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aldona Minecka
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School
of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Ewa Kaminska
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School
of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Magdalena Tarnacka
- Institute of Physics, University of Silesia, ul. 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Iwona Grudzka-Flak
- Institute of Physics, University of Silesia, ul. 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Mariola Bartoszek
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-007 Katowice, Poland
| | - Kamila Wolnica
- Institute of Physics, University of Silesia, ul. 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Mateusz Dulski
- Institute of Physics, University of Silesia, ul. 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Institute of Material Sciences, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Kamil Kaminski
- Institute of Physics, University of Silesia, ul. 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia, ul. 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian Center for Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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10
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Saini MK, Jin X, Wu T, Liu Y, Wang LM. Interplay of intermolecular interactions and flexibility to mediate glass forming ability and fragility: A study of chemical analogs. J Chem Phys 2018; 148:124504. [PMID: 29604851 DOI: 10.1063/1.5019968] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We have investigated the enthalpic and dielectric relaxations of four groups of quinoline analogs having similar structural properties (i.e., rigidity, stiffness, and bulkiness) but a different steric character and the nature of intermolecular interactions and flexibility. The dielectric fragility index (md) and the enthalpic one (mH), determined by the Tool-Narayanaswamy-Moynihan-Hodge formalism, are comparable. Generally, for the four sets of molecules of similar structures, both the interactions and flexibility are found to be critical in making the large span of fragility (i.e., from 59 to 131) and glass forming ability. By contrast, individual impacts of the interaction and flexibility can only explain fragility partly among each group of isomers. We found that the molecules with high fragility are of relatively low liquid density, reflecting the joint impact of the interactions and flexibility. An interesting result is observed among the isomers that the molecules which are fragile have enhanced glass forming ability. The results are unveiling the joint impacts of molecular structure (flexibility) and intermolecular interaction on the molecular dynamics.
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Affiliation(s)
- Manoj K Saini
- State Key Laboratory of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Xiao Jin
- State Key Laboratory of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Tao Wu
- State Key Laboratory of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Yingdan Liu
- State Key Laboratory of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Li-Min Wang
- State Key Laboratory of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
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11
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Schammé B, Couvrat N, Tognetti V, Delbreilh L, Dupray V, Dargent É, Coquerel G. Investigation of Drug-Excipient Interactions in Biclotymol Amorphous Solid Dispersions. Mol Pharm 2018; 15:1112-1125. [PMID: 29328661 DOI: 10.1021/acs.molpharmaceut.7b00993] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The effect of low molecular weight excipients on drug-excipient interactions, molecular mobility, and propensity to recrystallization of an amorphous active pharmaceutical ingredient is investigated. Two structurally related excipients (α-pentaacetylglucose and β-pentaacetylglucose), five different drug:excipient ratios (1:5, 1:2, 1:1, 2:1, and 5:1, w/w), and three different solid state characterization tools (differential scanning calorimetry, X-ray powder diffraction, and dielectric relaxation spectroscopy) were selected for the present research. Our investigation has shown that the excipient concentration and its molecular structure reveal quasi-identical molecular dynamic behavior of solid dispersions above and below the glass transition temperature. Across to complementary quantum mechanical simulations, we point out a clear indication of a strong interaction between biclotymol and the acetylated saccharides. Moreover, the thermodynamic study on these amorphous solid dispersions highlighted a stabilizing effect of α-pentaacetylglucose regardless of its quantity while an excessive concentration of β-pentaacetylglucose revealed a poor crystallization inhibition. Finally, through long-term stability studies, we also showed the limiting excipient concentration needed to stabilize our amorphous API. Herewith, the developed procedure in this paper appears to be a promising tool for solid-state characterization of complex pharmaceutical formulations.
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Affiliation(s)
- Benjamin Schammé
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France.,Groupe de Physique des Matériaux, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Nicolas Couvrat
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Vincent Tognetti
- COBRA UMR 6014, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76821 Mont-Saint-Aignan , France
| | - Laurent Delbreilh
- Groupe de Physique des Matériaux, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Valérie Dupray
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Éric Dargent
- Groupe de Physique des Matériaux, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Gérard Coquerel
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France
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12
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Viel Q, Delbreilh L, Coquerel G, Petit S, Dargent E. Molecular Mobility of an Amorphous Chiral Pharmaceutical Compound: Impact of Chirality and Chemical Purity. J Phys Chem B 2017; 121:7729-7740. [DOI: 10.1021/acs.jpcb.7b05667] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Quentin Viel
- INSA Rouen, CNRS, Groupe de Physique des Matériaux, and ‡Sciences et
Méthodes Séparatives, Normandie Univ, UNIROUEN Normandie, 76000 Rouen, France
| | - Laurent Delbreilh
- INSA Rouen, CNRS, Groupe de Physique des Matériaux, and ‡Sciences et
Méthodes Séparatives, Normandie Univ, UNIROUEN Normandie, 76000 Rouen, France
| | - Gérard Coquerel
- INSA Rouen, CNRS, Groupe de Physique des Matériaux, and ‡Sciences et
Méthodes Séparatives, Normandie Univ, UNIROUEN Normandie, 76000 Rouen, France
| | - Samuel Petit
- INSA Rouen, CNRS, Groupe de Physique des Matériaux, and ‡Sciences et
Méthodes Séparatives, Normandie Univ, UNIROUEN Normandie, 76000 Rouen, France
| | - Eric Dargent
- INSA Rouen, CNRS, Groupe de Physique des Matériaux, and ‡Sciences et
Méthodes Séparatives, Normandie Univ, UNIROUEN Normandie, 76000 Rouen, France
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13
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Madejczyk O, Kaminska E, Tarnacka M, Dulski M, Jurkiewicz K, Kaminski K, Paluch M. Studying the Crystallization of Various Polymorphic Forms of Nifedipine from Binary Mixtures with the Use of Different Experimental Techniques. Mol Pharm 2017; 14:2116-2125. [DOI: 10.1021/acs.molpharmaceut.7b00228] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- O. Madejczyk
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - E. Kaminska
- Department
of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - M. Tarnacka
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - M. Dulski
- Silesian
Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
- Institute
of Material Science, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K. Jurkiewicz
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - K. Kaminski
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - M. Paluch
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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14
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Kawakami K, Ohba C. Crystallization of probucol from solution and the glassy state. Int J Pharm 2016; 517:322-328. [PMID: 27979761 DOI: 10.1016/j.ijpharm.2016.12.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 12/02/2016] [Accepted: 12/11/2016] [Indexed: 11/18/2022]
Abstract
Crystallization of probucol (PBL) from both solution and glassy solid state was investigated. In the crystallization study from solution, six solvents and three methods, i.e., evaporation, addition of a poor solvent, and cooling on ice, were used to obtain various crystal forms. In addition to common two crystal forms (forms I and II), two further forms (forms III and cyclohexane-solvate) were found in this study, and their thermodynamic relationships were determined. Forms I and II are likely to be enantiotropically related with thermodynamic transition temperature below 5°C. Isothermal crystallization studies revealed that PBL glass initially crystallized into form III between 25 and 50°C, and then transformed to form I. The isothermal crystallization appears to be a powerful option to find uncommon crystal forms. The crystallization of PBL was identified to be pressure controlled, thus the physical stability of PBL glass is higher than that of typical compounds.
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Affiliation(s)
- Kohsaku Kawakami
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | - Chie Ohba
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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15
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Glass-Forming Tendency of Molecular Liquids and the Strength of the Intermolecular Attractions. Sci Rep 2016; 6:36934. [PMID: 27883011 PMCID: PMC5121653 DOI: 10.1038/srep36934] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 10/24/2016] [Indexed: 12/24/2022] Open
Abstract
When we cool down a liquid below the melting temperature, it can either crystallize or become supercooled, and then form a disordered solid called glass. Understanding what makes a liquid to crystallize readily in one case and form a stable glass in another is a fundamental problem in science and technology. Here we show that the crystallization/glass-forming tendencies of the molecular liquids might be correlated with the strength of the intermolecular attractions, as determined from the combined experimental and computer simulation studies. We use van der Waals bonded propylene carbonate and its less polar structural analog 3-methyl-cyclopentanone to show that the enhancement of the dipole-dipole forces brings about the better glass-forming ability of the sample when cooling from the melt. Our finding was rationalized by the mismatch between the optimal temperature range for the nucleation and crystal growth, as obtained for a modeled Lennard-Jones system with explicitly enhanced or weakened attractive part of the intermolecular 6–12 potential.
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16
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Kawakami K. Supersaturation and crystallization: non-equilibrium dynamics of amorphous solid dispersions for oral drug delivery. Expert Opin Drug Deliv 2016; 14:735-743. [DOI: 10.1080/17425247.2017.1230099] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Kohsaku Kawakami
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
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17
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Knapik J, Wojnarowska Z, Grzybowska K, Tajber L, Mesallati H, Paluch KJ, Paluch M. Molecular Dynamics and Physical Stability of Amorphous Nimesulide Drug and Its Binary Drug-Polymer Systems. Mol Pharm 2016; 13:1937-46. [PMID: 27149568 DOI: 10.1021/acs.molpharmaceut.6b00115] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this article we study the effectiveness of three well-known polymers: inulin, Soluplus, and PVP in stabilizing the amorphous form of nimesulide (NMS) drug. The recrystallization tendency of pure drug as well as measured drug-polymer systems were examined at isothermal conditions by broadband dielectric spectroscopy (BDS) and at nonisothermal conditions by differential scanning calorimetry (DSC). Our investigation has shown that the crystallization half-life time of pure NMS at 328 K is equal to 33 min. We found that this time can be prolonged to 40 years after adding 20% w/w PVP to NMS. This polymer proved to be the best NMS stabilizer, while the worst stabilization effect was exhibited by inulin. Additionally, our DSC, BDS, and FTIR studies indicate that for suppression of NMS recrystallization in the NMS-PVP system, the two mechanisms are responsible: the polymeric steric hindrances and the antiplastization effect exerted by the excipient.
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Affiliation(s)
- J Knapik
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Z Wojnarowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Grzybowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - L Tajber
- School of Pharmacy and Pharmaceutical Sciences , Trinity College Dublin , College Green, Dublin 2, Ireland
| | - H Mesallati
- School of Pharmacy and Pharmaceutical Sciences , Trinity College Dublin , College Green, Dublin 2, Ireland
| | - K J Paluch
- Centre for Pharmaceutical Engineering Science, Bradford School of Pharmacy, Faculty of Life Sciences, University of Bradford , Richmond Road, BD71DP Bradford, W. Yorks., U.K
| | - M Paluch
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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18
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Grzybowska K, Capaccioli S, Paluch M. Recent developments in the experimental investigations of relaxations in pharmaceuticals by dielectric techniques at ambient and elevated pressure. Adv Drug Deliv Rev 2016; 100:158-82. [PMID: 26705851 DOI: 10.1016/j.addr.2015.12.008] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/05/2015] [Accepted: 12/09/2015] [Indexed: 10/22/2022]
Abstract
In recent years, there is a growing interest in improving the physicochemical stability of amorphous pharmaceutical solids due to their very promising applications to manufacture medicines characterized by a better water solubility, and consequently by a higher dissolution rate than those of their crystalline counterparts. In this review article, we show that the molecular mobility investigated both in the supercooled liquid and glassy states is the crucial factor required to understand molecular mechanisms that govern the physical stability of amorphous drugs. We demonstrate that pharmaceuticals can be thoroughly examined by means of the broadband dielectric spectroscopy, which is a very useful experimental technique to explore different relaxation processes and crystallization kinetics as well. Such studies conducted in the wide temperature and pressure ranges provide data needed in searching correlations between properties of molecular dynamics and crystallization process, which are aimed at developing effective and efficient methods for stabilizing amorphous drugs.
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19
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Paluch M, Knapik J, Wojnarowska Z, Grzybowski A, Ngai KL. Universal Behavior of Dielectric Responses of Glass Formers: Role of Dipole-Dipole Interactions. PHYSICAL REVIEW LETTERS 2016; 116:025702. [PMID: 26824551 DOI: 10.1103/physrevlett.116.025702] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 05/16/2023]
Abstract
From an exhaustive examination of the molecular dynamics in practically all van der Waals molecular glass formers ever probed by dielectric spectroscopy, we found that the width of the α-loss peak at or near the glass transition temperature T_{g} is strongly anticorrelated with the polarity of the molecule. The larger the dielectric relaxation strength Δε(T_{g}) of the system, the narrower is the α-loss peak. This remarkable property is explained by the contribution from the dipole-dipole interaction potential V_{dd}(r)=-Dr^{-6} to the attractive part of the intermolecular potential, making the resultant potential more harmonic, and the effect increases rapidly with the dipole moment μ and Δε(T_{g}) in view of the relation, D∝(μ^{4}/kT_{g})∝kT_{g}[Δε(T_{g})]^{2}. Since the novel correlation discovered encompasses practically all van der Waals molecular glass formers studied by dielectric spectroscopy, it impacts the large dielectric research community as well as those engaged in solving the glass transition problem.
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Affiliation(s)
- M Paluch
- Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - J Knapik
- Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - Z Wojnarowska
- Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - A Grzybowski
- Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - K L Ngai
- CNR-IPCF, Dipartimento di Fisica, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
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20
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Tripathi P, Romanini M, Tamarit JL, Macovez R. Collective relaxation dynamics and crystallization kinetics of the amorphous Biclotymol antiseptic. Int J Pharm 2015; 495:420-427. [DOI: 10.1016/j.ijpharm.2015.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/02/2015] [Accepted: 09/08/2015] [Indexed: 10/23/2022]
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21
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Gerges J, Affouard F. Predictive Calculation of the Crystallization Tendency of Model Pharmaceuticals in the Supercooled State from Molecular Dynamics Simulations. J Phys Chem B 2015; 119:10768-83. [DOI: 10.1021/acs.jpcb.5b05557] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Gerges
- Unité
Matériaux
et Transformations (UMET), UMR CNRS 8207, UFR de Physique, BAT P5, Université de Lille 1, 59655 Villeneuve d’ascq, France
| | - F. Affouard
- Unité
Matériaux
et Transformations (UMET), UMR CNRS 8207, UFR de Physique, BAT P5, Université de Lille 1, 59655 Villeneuve d’ascq, France
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22
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Schammé B, Couvrat N, Malpeli P, Delbreilh L, Dupray V, Dargent É, Coquerel G. Crystallization kinetics and molecular mobility of an amorphous active pharmaceutical ingredient: A case study with Biclotymol. Int J Pharm 2015; 490:248-57. [DOI: 10.1016/j.ijpharm.2015.05.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 05/11/2015] [Accepted: 05/12/2015] [Indexed: 11/17/2022]
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23
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Kawakami K, Harada T, Yoshihashi Y, Yonemochi E, Terada K, Moriyama H. Correlation between glass-forming ability and fragility of pharmaceutical compounds. J Phys Chem B 2015; 119:4873-80. [PMID: 25781503 DOI: 10.1021/jp509646z] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fragility is a measure of the departure from non-Arrhenius behavior for supercooled liquids and glasses, and various simple methods are available for its quantification. However, the obtained values usually do not agree with each other. One of the purposes of this study was to compare the fragility values obtained by different methodologies. Thermodynamic fragility (FT) is a simple concept that is evaluated from the heat capacity change at the glass transition temperature (Tg). Dynamic fragility is evaluated using three methodologies in this study: extrapolation of the configurational entropy (Sc) to the Kauzmann temperature (Tk) (FDC), ramp-rate dependence of Tg (FDTg), and that of the fictive temperature (Tf) (FDTf). FT and FDC of 19 pharmaceutical compounds were correlated, whereas FDTg and FDTf did not correlate with either of them. This result seems reasonable because both FT and FDC are calculated from thermodynamic parameters in the quasi-equilibrium state, but FDTg and FDTf are likely affected by kinetics as well. Another goal of this study was to find the correlation between the glass-forming ability (GFA) and fragility. FDTg was shown to correlate with GFA, presumably because both were determined on the balance of thermodynamic and kinetic factors. This correlation suggests that fragile glass has low GFA. Furthermore, the relevance of fragility to isothermal crystallization is discussed. Compounds with small FDTg and FDTf tended to exhibit pressure-controlled crystallization, for which better storage stability can be expected relative to temperature-controlled compounds. Fragility was shown to be a useful parameter practically as well as scientifically.
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Affiliation(s)
- Kohsaku Kawakami
- †International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Takuji Harada
- †International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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24
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Knapik J, Wojnarowska Z, Grzybowska K, Hawelek L, Sawicki W, Wlodarski K, Markowski J, Paluch M. Physical Stability of the Amorphous Anticholesterol Agent (Ezetimibe): The Role of Molecular Mobility. Mol Pharm 2014; 11:4280-90. [DOI: 10.1021/mp500498e] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- J. Knapik
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Z. Wojnarowska
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K. Grzybowska
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - L. Hawelek
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
- Institute of Non Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - W. Sawicki
- Department
of Physical Chemistry, Medical University of Gdansk, 84-416 Gdansk, Poland
| | - K. Wlodarski
- Department
of Physical Chemistry, Medical University of Gdansk, 84-416 Gdansk, Poland
| | - J. Markowski
- ENT
Department, Silesian Medical University, ul. Francuska 20, Katowice, Poland
| | - M. Paluch
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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25
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Kawakami K, Harada T, Miura K, Yoshihashi Y, Yonemochi E, Terada K, Moriyama H. Relationship between Crystallization Tendencies during Cooling from Melt and Isothermal Storage: Toward a General Understanding of Physical Stability of Pharmaceutical Glasses. Mol Pharm 2014; 11:1835-43. [DOI: 10.1021/mp400679m] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kohsaku Kawakami
- Biomaterials
Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Takuji Harada
- Biomaterials
Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Faculty
of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Keiko Miura
- Industrial
Application Division, Japan Synchrotron Radiation Research Institute (JASRI/SPring8), 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Yasuo Yoshihashi
- Faculty
of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Etsuo Yonemochi
- Faculty
of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Katsuhide Terada
- Faculty
of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Hiroshi Moriyama
- Faculty
of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
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26
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Williams HD, Trevaskis NL, Charman SA, Shanker RM, Charman WN, Pouton CW, Porter CJH. Strategies to address low drug solubility in discovery and development. Pharmacol Rev 2013; 65:315-499. [PMID: 23383426 DOI: 10.1124/pr.112.005660] [Citation(s) in RCA: 972] [Impact Index Per Article: 88.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Drugs with low water solubility are predisposed to low and variable oral bioavailability and, therefore, to variability in clinical response. Despite significant efforts to "design in" acceptable developability properties (including aqueous solubility) during lead optimization, approximately 40% of currently marketed compounds and most current drug development candidates remain poorly water-soluble. The fact that so many drug candidates of this type are advanced into development and clinical assessment is testament to an increasingly sophisticated understanding of the approaches that can be taken to promote apparent solubility in the gastrointestinal tract and to support drug exposure after oral administration. Here we provide a detailed commentary on the major challenges to the progression of a poorly water-soluble lead or development candidate and review the approaches and strategies that can be taken to facilitate compound progression. In particular, we address the fundamental principles that underpin the use of strategies, including pH adjustment and salt-form selection, polymorphs, cocrystals, cosolvents, surfactants, cyclodextrins, particle size reduction, amorphous solid dispersions, and lipid-based formulations. In each case, the theoretical basis for utility is described along with a detailed review of recent advances in the field. The article provides an integrated and contemporary discussion of current approaches to solubility and dissolution enhancement but has been deliberately structured as a series of stand-alone sections to allow also directed access to a specific technology (e.g., solid dispersions, lipid-based formulations, or salt forms) where required.
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Affiliation(s)
- Hywel D Williams
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
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27
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Tanaka H. Bond orientational order in liquids: Towards a unified description of water-like anomalies, liquid-liquid transition, glass transition, and crystallization: Bond orientational order in liquids. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2012; 35:113. [PMID: 23104614 DOI: 10.1140/epje/i2012-12113-y] [Citation(s) in RCA: 176] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Accepted: 09/28/2012] [Indexed: 06/01/2023]
Abstract
There are at least three fundamental states of matter, depending upon temperature and pressure: gas, liquid, and solid (crystal). These states are separated by first-order phase transitions between them. In both gas and liquid phases a complete translational and rotational symmetry exist, whereas in a solid phase both symmetries are broken. In intermediate phases between liquid and solid, which include liquid crystal and plastic crystal phases, only one of the two symmetries is preserved. Among the fundamental states of matter, the liquid state is the most poorly understood. We argue that it is crucial for a better understanding of liquids to recognize that a liquid generally has the tendency to have a local structural order and its presence is intrinsic and universal to any liquid. Such structural ordering is a consequence of many-body correlations, more specifically, bond angle correlations, which we believe are crucial for the description of the liquid state. We show that this physical picture may naturally explain difficult unsolved problems associated with the liquid state, such as anomalies of water-type liquids (water, Si, Ge, ...), liquid-liquid transition, liquid-glass transition, crystallization and quasicrystal formation, in a unified manner. In other words, we need a new order parameter representing a low local free-energy configuration, which is a bond orientational order parameter in many cases, in addition to a density order parameter for the physical description of these phenomena. Here we review our two-order-parameter model of liquid and consider how transient local structural ordering is linked to all of the above-mentioned phenomena. The relationship between these phenomena is also discussed.
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Affiliation(s)
- Hajime Tanaka
- Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan.
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