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Druvari D, Kyriakopoulou F, Lainioti GC, Vlamis-Gardikas A, Kallitsis JK. Humidity-Responsive Antimicrobial Membranes Based on Cross-Linked Copolymers Functionalized with Ionic Liquid Moieties. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11193-11207. [PMID: 36787100 DOI: 10.1021/acsami.3c01017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Humidity-responsive materials have attracted increasing attention for their potential use in various applications, e.g., sensors, soft robotics, and human-machine interfaces. Much effort has been focused on the use of ionic liquids for the construction of humidity-responsive sensors; yet, not enough attention has been paid on the susceptibility of the used poly(ionic liquid)s to microorganisms. This is especially relevant to the wide use of the polymers for biomedical applications, e.g., wearable body-condition sensors or healthcare control systems. We herein describe the development of dual functional, self-standing, monolayer antimicrobial membranes derived from cross-linked copolymers functionalized with ionic liquids. In a first step, random copolymers of poly(4-vinylbenzyl N-alkyl imidazolium chloride-co-acrylic acid), P(VBCImCn-co-AA20), were synthesized bearing aliphatic chains of different lengths (where n = 1, 4, 8, 12, 16 carbon atoms) to investigate the effect of hydrophobicity/hydrophilicity on the humidity-responsive properties of the copolymer and its antimicrobial activity. The aforementioned copolymers were later blended with the complementary reactive copolymers of poly(cetyl trimethylammonium 4-styrene sulfonate-co-glycidyl methacrylate), P(SSAmC16-co-GMA20), to provide highly stable films and coatings through thermal cross-linking. The membrane P(VBCImC12-co-AA20)/P(SSAmC16-co-GMA20) with a molar ratio of 3:1 (mol AA/mol GMA) exhibited immediate and high response to moisture through folding or flipping motions when placed on a wet filter paper or on the palm of a hand. The inhibition of growth for selected bacterial species (Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus) on the copolymer membranes was dependent on the length of the imidazolium alkyl chain and the species. Additionally, in the case of the cross-linked P(VBCImCn-co-AA20)/P(SSAmC16-co-GMA20) membranes, the overall efficacy was very high against all microorganisms tested, which, combined with their high humidity responsiveness, enables their potential application.
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Affiliation(s)
- Denisa Druvari
- Department of Chemistry, University of Patras, GR-26504 Patras, Greece
| | | | | | | | - Joannis K Kallitsis
- Department of Chemistry, University of Patras, GR-26504 Patras, Greece
- Foundation for Research and Technology-Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str, GR-26504 Rio-Patras, Greece
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Silva GM, Beira MJ, Morgado P, Branco LC, Sebastião PJ, Canongia Lopes JN, Filipe EJ. Ionic liquids with hydrogenated and perfluorinated chains: Structural study of the [P6,6,6,14][FnCOO] n = 7, 9, 11. Checking the existence of polar – hydrogenated – perfluorinated triphilic continuity. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Sedov IA, Magsumov TI. Highlighting the difference in nanostructure between domain-forming and domainless protic ionic liquids. Phys Chem Chem Phys 2022; 24:21477-21494. [PMID: 36053503 DOI: 10.1039/d2cp02925a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanoheterogeneity in some ionic liquids is a known phenomenon, but quantifying or sometimes even identifying it is not a straightforward task. We compared several known and suggested some novel approaches to identify and characterize domain segregation using the results of atomistic simulations. 10 ammonium-based protic ionic liquids with different propensity to form segregated polar and apolar domains as suggested by experimental studies were considered. They include butyl-, propyl-, 2-methoxyethylammonium nitrate, butyl- and propylammonium hydrogen sulfate, butylammonium thiocyanate (domain-forming liquids), ethylammonium and pyrrolidinium nitrate (weakly pronounced segregation), methylammonium and 2-hydroxyethylammonium nitrate (domainless liquids). Molecular dynamics simulations were performed using models based on the OPLS-AA force field with scaled ion charges. Results show that domains can be recognized and the characteristic domain length scale can be determined from peaks of Ripley's functions, peaks and large-period oscillations of finite-volume radial distribution function integral, or difference of such integrals for polar and apolar atoms, and peaks of local atom density variance. These peaks disappear with increasing temperature due to the disruption of segregated domains. In domain-forming liquids, apolar atoms are more homogeneously distributed in space than polar atoms. In addition, the probability of molecular-sized cavity formation is significantly higher in apolar domains, which determines better solubility of apolar species in domain-forming ILs. The suggested approaches can be applied to various nanostructured liquids including both ionic and molecular solvents and mixtures, as well as other systems with mesoscale ordering.
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Affiliation(s)
- Igor A Sedov
- Chemical Institute, Kazan Federal University, Kremlevskaya Str., 18, Kazan, 420008, Russian Federation.
| | - Timur I Magsumov
- Chemical Institute, Kazan Federal University, Kremlevskaya Str., 18, Kazan, 420008, Russian Federation.
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Synthesis and Characterization of Fluorinated Phosphonium Ionic Liquids to Use as New Engineering Solvents. CHEMENGINEERING 2022. [DOI: 10.3390/chemengineering6030038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this work, a set of novel fluorinated ionic liquids (FILs), based on different tetra-alkyl-phosphonium cations with perfluorobutanesulfonate and perfluoropentanoate anions, were synthesized and characterized in order to check their suitability to apply as engineering solvents. Thermophysical and thermal properties were both determined between 293.15 and 353.15 K, and the molecular volumes and free volumes and the coefficients of isobaric thermal expansion were determined from experimental values of refractive index and density. Lastly, the Walden plot was used to evaluate the ionicity of the novel FILs. The cytotoxicity of these compounds was also determined using the human hepatocellular carcinoma cells (HepG2) and the human colon carcinoma cells (Caco-2). Finally, the results were all discussed with the aim of understanding the behaviour of these compounds, considering the influence of the anion and the hydrogenated alkyl chain length. In summary, the new FILs synthesized in this work present adequate properties for their application in different industrial processes. Most of these compounds are liquid at room temperature with high decomposition temperatures. All phosphonium-based FILs have lower densities than conventional ionic liquids and common organic solvents, and the viscosity depends directly on the selected anion. Furthermore, the ionicity of FILs based on the sulfonate anion is higher than those based on the carboxylate anion. Finally, the phosphonium-based FILs have no significant effect on cellular viability at lower concentrations.
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Abe H, Koyama Y, Shimono S, Kishimura H, Matsuishi K. High-pressure crystal polymorphs and multiple pathways in 1-hexyl-3-methylimidazolium perfluorobutanesulfonate ionic liquid. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Purcell SM, Lane PD, D'Andrea L, Elstone NS, Bruce DW, Slattery JM, Smoll EJ, Greaves SJ, Costen ML, Minton TK, McKendrick KG. Surface Structure of Alkyl/Fluoroalkylimidazolium Ionic-Liquid Mixtures. J Phys Chem B 2022; 126:1962-1979. [PMID: 35225614 PMCID: PMC9007465 DOI: 10.1021/acs.jpcb.1c10460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The gas-liquid interface of ionic liquids (ILs) is critically important in many applications, for example, in supported IL phase (SILP) catalysis. Methods to investigate the interfacial structure in these systems will allow their performance to be improved in a rational way. In this study, reactive-atom scattering (RAS), surface tension measurements, and molecular dynamics (MD) simulations were used to study the vacuum interface of mixtures of partially fluorinated and normal alkyl ILs. The underlying aim was to understand whether fluorinated IL ions could be used as additives to modify the surface structure of one of the most widely used families of alkyl ILs. The series of ILs 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Cnmim][Tf2N]) with n = 4-12 were mixed with a fixed-length, semiperfluorinated analogue (1H,1H,2H,2H-perfluorooctyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C8mimF13][Tf2N]), forming [Cnmim](1-x)[C8mimF13]x[Tf2N] mixtures, where x is the bulk mole fraction of the fluorinated component. The RAS-LIF method combined O-atom projectiles with laser-induced fluorescence (LIF) detection of the product OH as a measure of surface exposure of the alkyl chains. For [C8mim](1-x)[C8mimF13]x[Tf2N] mixtures, RAS-LIF OH yields are below those expected from stoichiometry. There are quantitatively consistent negative deviations from linearity of the surface tension. Both results imply that the lower-surface-tension fluoroalkyl material dominates the surface. A similar deficit is found for alkyl chain lengths n = 4, 6, 8, and 12 and for all (nonzero) x investigated by RAS-LIF. Accessible-surface-area (ASA) analyses of the MD simulations for [Cnmim](1-x)[C8mimF13]x[Tf2N] mixtures qualitatively reproduce the same primary effect of fluoro-chain predominance of the surface over most of the range of n. However, there are significant quantitative discrepancies between MD ASA predictions and experiment relating to the strength of any n-dependence of the relative alkyl coverage at fixed x, and on the x-dependence at fixed n. These discrepancies are discussed in the context of detailed examinations of the surface structures predicted in the MD simulations. Potential explanations, beyond experimental artifacts, include inadequacies in the classical force fields used in the MD simulations or the inability of simple ASA algorithms to capture dynamical factors that influence RAS-LIF yields.
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Affiliation(s)
- Simon M Purcell
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Paul D Lane
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Lucía D'Andrea
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - Naomi S Elstone
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - Duncan W Bruce
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - John M Slattery
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - Eric J Smoll
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Stuart J Greaves
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Matthew L Costen
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Timothy K Minton
- Ann and H.J. Smead Department of Aerospace Engineering Sciences, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Kenneth G McKendrick
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
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Jovell D, Pou JO, Llovell F, Gonzalez-Olmos R. Life Cycle Assessment of the Separation and Recycling of Fluorinated Gases Using Ionic Liquids in a Circular Economy Framework. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2022; 10:71-80. [PMID: 35036177 PMCID: PMC8753992 DOI: 10.1021/acssuschemeng.1c04723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 12/01/2021] [Indexed: 06/14/2023]
Abstract
The stricter regulation regarding the use of fluorinated gases (F-gases), as a consequence of their high Global Warming Potential (GWP), represents a challenge for the refrigeration industry. The design of alternatives requires the recycling of the low to moderate GWP compounds from current refrigerant blends. However, there is not a developed and standardized technology available to recover them, and once the life cycle of the refrigeration equipment has ended, most gases are incinerated. Fluorinated ionic liquids (FILs) can effectively perform as absorbents to the complex separation of F-gas mixtures. In this work, a methodology based on the COSMO-RS thermodynamic package integrated into an Aspen Plus process simulator was used to evaluate the performance of an FIL to recover difluoromethane (R-32) from the commercial blend R-407F. The environmental sustainability of the recovery process (circular economy scenario) was analyzed with a life cycle assessment (LCA) approach, comparing the obtained results with the conventional R-32 production (benchmark scenario). The results reveal a 30% recovery of 98 wt % R-32 suitable for further reuse with environmental load reduction in the 86-99% range compared to the R-32 production. This study can guide the development of new F-gas recovery technologies to improve the environmental impacts of these compounds from a circular economy perspective.
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Affiliation(s)
- Daniel Jovell
- Department
of Chemical Engineering and Materials Science, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - Josep O. Pou
- Department
of Chemical Engineering and Materials Science, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - Fèlix Llovell
- Department
of Chemical Engineering, Universitat Rovira
i Virgili, Avinguda Països Catalans 26, 43007 Tarragona, Spain
| | - Rafael Gonzalez-Olmos
- Department
of Chemical Engineering and Materials Science, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
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Ionic Liquids and Water: Hydrophobicity vs. Hydrophilicity. Molecules 2021; 26:molecules26237159. [PMID: 34885741 PMCID: PMC8658901 DOI: 10.3390/molecules26237159] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/17/2022] Open
Abstract
Many chemical processes rely extensively on organic solvents posing safety and environmental concerns. For a successful transfer of some of those chemical processes and reactions to aqueous media, agents acting as solubilizers, or phase-modifiers, are of central importance. In the present work, the structure of aqueous solutions of several ionic liquid systems capable of forming multiple solubilizing environments were modeled by molecular dynamics simulations. The effect of small aliphatic chains on solutions of hydrophobic 1-alkyl-3-methylimidazolium bis(trifluoromethyl)sulfonylimide ionic liquids (with alkyl = propyl [C3C1im][NTf2], butyl [C4C1im][NTf2] and isobutyl [iC4C1im][NTf2]) are covered first. Next, we focus on the interactions of sulphonate- and carboxylate-based anions with different hydrogenated and perfluorinated alkyl side chains in solutions of [C2C1im][CnF2n+1SO3], [C2C1im][CnH2n+1SO3], [C2C1im][CF3CO2] and [C2C1im][CH3CO2] (n = 1, 4, 8). The last system considered is an ionic liquid completely miscible with water that combines the cation N-methyl-N,N,N-tris(2-hydroxyethyl)ammonium [N1 2OH 2OH 2OH]+, with high hydrogen-bonding capability, and the hydrophobic anion [NTf2]-. The interplay between short- and long-range interactions, clustering of alkyl and perfluoroalkyl tails, and hydrogen bonding enables a wealth of possibilities in tailoring an ionic liquid solution according to the needs.
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10
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Chang TM, Billeck SE. Structure, Molecular Interactions, and Dynamics of Aqueous [BMIM][BF 4] Mixtures: A Molecular Dynamics Study. J Phys Chem B 2021; 125:1227-1240. [PMID: 33497566 DOI: 10.1021/acs.jpcb.0c09731] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular dynamics simulations with many-body polarizable force fields were carried out to investigate the thermodynamic, structural, and dynamic properties of aqueous solutions of 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]). The radial distribution functions exhibit well-defined features, revealing favored structural correlations between [bmim]+, [BF4]-, and H2O. The addition of water is shown to alter ionic liquid structural organizations by replacing counterions in the coordination shells and disrupt the cation-anion network. At low water concentration, the majority of water molecules are isolated from each other and have lower average dipole moment than that in pure water. With increasing hydration level, while [bmim][BF4] ionic network breaks up and becomes isolated ion pairs or free ions in the dilute limit, water begins to form clusters of increasing sizes and eventually forms a percolating network. As a result, the average water dipole moment increases and approaches its bulk value. Water is also observed to have a substantial influence on the dynamics of ionic liquids. At low water content, the cation and anion have similar diffusion coefficients due to the correlated ionic motion of long-lived ion pairs. As the water concentration increases, both ions exhibit greater mobility and faster rotations from the breakup of ionic network. Consequently, the ionic conductivity of [bmim][BF4] aqueous solutions rises with increasing water composition.
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Affiliation(s)
- Tsun-Mei Chang
- Department of Chemistry, University of Wisconsin-Parkside, Kenosha, Wisconsin 53141, United States
| | - Stephanie E Billeck
- Department of Chemistry, University of Wisconsin-Parkside, Kenosha, Wisconsin 53141, United States
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Koyama Y, Shimono S, Abe H, Matsuishi K. Crystal polymorphs in 1-alkyl-3-methylimidazolium perfluorobutanesulfonate ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sosa JE, Santiago R, Hospital-Benito D, Costa Gomes M, Araújo JMM, Pereiro AB, Palomar J. Process Evaluation of Fluorinated Ionic Liquids as F-Gas Absorbents. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:12784-12794. [PMID: 32822151 DOI: 10.1021/acs.est.0c05305] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The environmental impact of fluorinated gases (F-gases) necessitates the development of green technologies to mitigate them. Fluorinated ionic liquids (FIL/ILs) emerged as an alternative absorbent due to their unique and exceptional properties. In this work, a COSMO-based/Aspen Plus methodology was used to evaluate the performance of FIL/ILs as absorbents in the process scale of two F-gases: 1,1,1,2-tetrafluoroethane (R-134a) and difluoromethane (R-32). Results of the absorption column in equilibrium mode revealed that the behavior of FIL/ILs is similar under the same conditions, reaching higher efficiencies in the case of absorbing R-134a at a high F-gas partial pressure. Rate-based calculations in packing column demonstrated a kinetic control with highly viscous FIL/ILs, revealing higher performance differences between FIL/IL absorbents. The regeneration stage was also evaluated in near-industrial conditions. Operating conditions of the absorption column were optimized with a column of height 10 m and diameter ranging from 1.1 to 1.2 m at 10 bar total pressure, reaching 90% F gas recovery with an L/G range of 6-10. Finally, preliminary economic analysis revealed operating costs to recover 90% of F-gas of 70 $/ton (R-134a) and 130 $/ton (R-32) with the FIL/IL that revealed the best behavior, 1-ethyl-3-methylimidazolium triflate.
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Affiliation(s)
- Julio E Sosa
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Rubén Santiago
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | | | | | - João M M Araújo
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana B Pereiro
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - José Palomar
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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Tailor-Made Fluorinated Ionic Liquids for Protein Delivery. NANOMATERIALS 2020; 10:nano10081594. [PMID: 32823882 PMCID: PMC7466544 DOI: 10.3390/nano10081594] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/28/2020] [Accepted: 08/12/2020] [Indexed: 12/28/2022]
Abstract
Nowadays, pharmaceutical companies are facing several challenges with the development and approval of new biological products. The unique properties of several fluorinated ionic liquids (FILs), such as their high surfactant power in aqueous solutions, their chemical and biological stability, and low toxicity, favor their application in the pharmaceutical industry. Furthermore, the numerous combinations between cations and anions, in the FILs design, enlarge the possibilities to construct a successful delivery system. Several FILs also proved to not affect the activity, stability, and secondary structure of the therapeutic protein lysozyme. This work aims to study the aggregation behavior of distinct FILs in the protein suitable medium, in the presence or absence of lysozyme. Besides, different incubation conditions were tested to guarantee the optimal enzymatic activity of the protein at more stable delivery systems. Following the optimization of the incubation conditions, the quantification of the encapsulated lysozyme was performed to evaluate the encapsulation efficiency of each FIL-based system. The release of the protein was tested applying variables such as time, temperature, and ultrasound frequency. The experimental results suggest that the aggregation behavior of FILs is not significantly influenced by the protein and/or protein buffer and supports their application for the design of delivery systems with high encapsulation efficiencies, maintaining the biological activity of either encapsulated and released protein.
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Castro PJ, Redondo AE, Sosa JE, Zakrzewska ME, Nunes AVM, Araújo JMM, Pereiro AB. Absorption of Fluorinated Greenhouse Gases in Deep Eutectic Solvents. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01893] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paulo J. Castro
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade de Lisboa, Caparica, 2829-516, Portugal
| | - Andres E. Redondo
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade de Lisboa, Caparica, 2829-516, Portugal
- Faculty of Architecture and Engineering, Chemical Engineering Research Group, SINVINQ, University of Pamplona, Pamplona, 543050, Colombia
| | - Julio E. Sosa
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade de Lisboa, Caparica, 2829-516, Portugal
| | - Malgorzata E. Zakrzewska
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade de Lisboa, Caparica, 2829-516, Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ana V. M. Nunes
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade de Lisboa, Caparica, 2829-516, Portugal
| | - João M. M. Araújo
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade de Lisboa, Caparica, 2829-516, Portugal
| | - Ana B. Pereiro
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade de Lisboa, Caparica, 2829-516, Portugal
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Prikhod’ko SA, Shabalin AY, Shmakov MM, Bardin VV, Adonin NY. Ionic liquids with fluorine-containing anions as a new class of functional materials: features of the synthesis, physicochemical properties, and use. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2719-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Triolo A, Lo Celso F, Ottaviani C, Ji P, Appetecchi GB, Leonelli F, Keeble DS, Russina O. Structural features of selected protic ionic liquids based on a super-strong base. Phys Chem Chem Phys 2019; 21:25369-25378. [PMID: 31709430 DOI: 10.1039/c9cp03927a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protic ionic liquids (PIL) were prepared from a super-strong base 1,7-diazabicyclo[5.4.0]undec-7-ene (DBU) and super-strong acids, trifluoromethane sulfonic acid (TfOH), and (trifluoromethanesulfonyl)-(nonafluorobutylsulfonyl)imide, (IM14H), ([DBUH][TfO] and [DBUH][IM14], respectively; the latter for the first time) and their chemical and physical properties and structural features have been explored using a synergy of experimental and computational tools. The short range order in neat DBU, as well as the long range structural correlations induced by charge correlation and hydrogen bonding interactions in the ionic liquids, have been explored under ambient conditions, where these compounds are proposed for a variety of applications. Similar to other [DBUH]-based PILs, the probed ones behave as good ionic liquids. Molecular dynamics-rationalised X-ray diffraction patterns show the major role played by hydrogen bonding in affecting morphology in these systems. Additionally, we find further evidence for the existence of fluorous domains in [DBUH][IM14], thus potentially extending the range of applications for these PILs.
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Affiliation(s)
- Alessandro Triolo
- Laboratorio Liquidi Ionici, Istituto Struttura della Materia, Consiglio Nazionale delle Ricerche, (ISM-CNR), Rome, Italy.
| | - Fabrizio Lo Celso
- Department of Physics and Chemistry, Università di Palermo, Palermo, Italy
| | - Carlo Ottaviani
- Laboratorio Liquidi Ionici, Istituto Struttura della Materia, Consiglio Nazionale delle Ricerche, (ISM-CNR), Rome, Italy.
| | - Pengju Ji
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | | | - Francesca Leonelli
- Department of Environmental Biology, University of Rome Sapienza, Rome, Italy
| | - Dean S Keeble
- Diamond Light Source, Harwell Campus, Didcot OX11 0DE, UK
| | - Olga Russina
- Department of Chemistry, University of Rome Sapienza, Rome, Italy.
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Systematic study of the influence of the molecular structure of fluorinated ionic liquids on the solubilization of atmospheric gases using a soft-SAFT based approach. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111645] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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19
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Sosa JE, Ribeiro RPPL, Castro PJ, Mota JPB, Araújo JMM, Pereiro AB. Absorption of Fluorinated Greenhouse Gases Using Fluorinated Ionic Liquids. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04648] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Julio E. Sosa
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Rui P. P. L. Ribeiro
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Paulo J. Castro
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - José P. B. Mota
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João M. M. Araújo
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana B. Pereiro
- LAQV, REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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20
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Mesoscopic structural organization in fluorinated pyrrolidinium-based room temperature ionic liquids. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111110] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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21
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Vieira NS, Bastos JC, Hermida-Merino C, Pastoriza-Gallego MJ, Rebelo LP, Piñeiro MM, Araújo JM, Pereiro AB. Aggregation and phase equilibria of fluorinated ionic liquids. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.086] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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Lo Celso F, Appetecchi GB, Simonetti E, Zhao M, Castner EW, Keiderling U, Gontrani L, Triolo A, Russina O. Microscopic Structural and Dynamic Features in Triphilic Room Temperature Ionic Liquids. Front Chem 2019; 7:285. [PMID: 31119123 PMCID: PMC6507529 DOI: 10.3389/fchem.2019.00285] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/08/2019] [Indexed: 01/20/2023] Open
Abstract
Here we report a thorough investigation of the microscopic and mesoscopic structural organization in a series of triphilic fluorinated room temperature ionic liquids, namely [1-alkyl,3-methylimidazolium][(trifluoromethanesulfonyl)(nonafluorobutylsulfonyl)imide], with alkyl = ethyl, butyl, octyl ([Cnmim][IM14], n = 2, 4, 8), based on the synergic exploitation of X-ray and Neutron Scattering and Molecular Dynamics simulations. This study reveals the strong complementarity between X-ray/neutron scattering in detecting the complex segregated morphology in these systems at mesoscopic spatial scales. The use of MD simulations delivering a very good agreement with experimental data allows us to gain a robust understanding of the segregated morphology. The structural scenario is completed with determination of dynamic properties accessing the diffusive behavior and a relaxation map is provided for [C2mim][IM14] and [C8mim][IM14], highlighting their natures as fragile glass formers.
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Affiliation(s)
- Fabrizio Lo Celso
- Dipartimento di Fisica e Chimica, Università di Palermo, Palermo, Italy
| | | | | | - Man Zhao
- Department of Chemistry and Chemical Biology, Rutgers University, The State University of New Jersey, Newark, NJ, United States
| | - Edward W Castner
- Department of Chemistry and Chemical Biology, Rutgers University, The State University of New Jersey, Newark, NJ, United States
| | - Uwe Keiderling
- Soft Matter and Functional Materials, Helmholtz-Zentrum für Materialien und Energie GmbH, Berlin, Germany
| | - Lorenzo Gontrani
- Department of Chemistry, University of Rome Sapienza, Rome, Italy
| | - Alessandro Triolo
- Laboratorio Liquidi Ionici, Istituto Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Rome, Italy
| | - Olga Russina
- Department of Chemistry, University of Rome Sapienza, Rome, Italy
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23
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Yang L, Yang X, Wang T, Jiang G, Luckham PF, Li X, Shi H, Luo J. Effect of Alkyl Chain Length on Shale Hydration Inhibitive Performance of Vinylimidazolium-Based Ionic Liquids. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01016] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lili Yang
- MOE Key Laboratory
of Petroleum Engineering, State Key Laboratory of Petroleum Resources
and Prospecting, China University of Petroleum (Beijing), Changping District, Beijing 102249, China
- Department of Chemical Engineering, Imperial College London, Prince Consort Road, London SW7 2AZ, United Kingdom
| | - Xiao Yang
- MOE Key Laboratory
of Petroleum Engineering, State Key Laboratory of Petroleum Resources
and Prospecting, China University of Petroleum (Beijing), Changping District, Beijing 102249, China
| | - Tengda Wang
- MOE Key Laboratory
of Petroleum Engineering, State Key Laboratory of Petroleum Resources
and Prospecting, China University of Petroleum (Beijing), Changping District, Beijing 102249, China
| | - Guancheng Jiang
- MOE Key Laboratory
of Petroleum Engineering, State Key Laboratory of Petroleum Resources
and Prospecting, China University of Petroleum (Beijing), Changping District, Beijing 102249, China
| | - Paul F. Luckham
- Department of Chemical Engineering, Imperial College London, Prince Consort Road, London SW7 2AZ, United Kingdom
| | - Xinliang Li
- MOE Key Laboratory
of Petroleum Engineering, State Key Laboratory of Petroleum Resources
and Prospecting, China University of Petroleum (Beijing), Changping District, Beijing 102249, China
| | - He Shi
- MOE Key Laboratory
of Petroleum Engineering, State Key Laboratory of Petroleum Resources
and Prospecting, China University of Petroleum (Beijing), Changping District, Beijing 102249, China
| | - Jiansheng Luo
- Oilfield Chemicals Division, China Oilfield Services Limited, Yanjiao Town, Hebei 065201, China
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24
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Vieira NSM, Bastos JC, Rebelo LPN, Matias A, Araújo JMM, Pereiro AB. Human cytotoxicity and octanol/water partition coefficients of fluorinated ionic liquids. CHEMOSPHERE 2019; 216:576-586. [PMID: 30390588 DOI: 10.1016/j.chemosphere.2018.10.159] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/18/2018] [Accepted: 10/22/2018] [Indexed: 06/08/2023]
Abstract
The use of fluorinated ionic liquids (FILs) as novel materials in biological and pharmaceutical applications is an emerging research field. The knowledge of their cytotoxicity and that of 1-octanol/water partition coefficients are essential to assess their environmental risks, to estimate their toxicity and activity, or the hydrophilic/lipophilic balance, as well as to explore their properties as solvents in extraction processes or for successful drug design. The study of the cytotoxicity in four different human cell lines and the experimental measurement of the partition coefficient between 1-octanol and water (Po/w), using the slow-stirring method, were carried out for several FILs. In both studies, the effect of the cation ([C2C1Im]+, [C2C1py]+, [C4C1pyr]+, [N1112(OH)]+, or [N4444]+), the cationic alkyl side-chain length ([CnC1Im]+, with n = 2, 6, 8 or 12), and the anionic fluorinated chain length/anionic fluorinated domain size ([C4F9SO3]¯, [C8F17SO3]¯, or [N(C4F9SO3)2]¯) were analysed. The results reveal that both toxicity and partition properties are mainly influenced by the size of the cationic hydrogenated alkyl side-chain and that of the anionic fluorinated domain. The intrinsic tuneability of the FILs allows for their selection according to the lipophilic or hydrophilic character of the target biological system under consideration. The toxicity studies corroborate the biocompatible nature of some FILs tested in this work. Along, for all the FILs under study Po/w < 1.00. Accordingly, a decadic logarithm of the bioconcentration factor in fish of 0.5 would be estimated, which is below the regulatory endpoint used by regulatory agencies.
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Affiliation(s)
- Nicole S M Vieira
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157 Oeiras, Portugal
| | - Joana C Bastos
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Luís P N Rebelo
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Matias
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157 Oeiras, Portugal; Instituto de Biologia Experimental e Tecnológica, iBET, Apartado 12, 2780-901, Oeiras, Portugal.
| | - João M M Araújo
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Ana B Pereiro
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
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25
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Ferreira ML, Araújo JMM, Pereiro AB, Vega LF. Insights into the influence of the molecular structures of fluorinated ionic liquids on their thermophysical properties. A soft-SAFT based approach. Phys Chem Chem Phys 2019; 21:6362-6380. [DOI: 10.1039/c8cp07522k] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Development of predictive models for FILs.
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Affiliation(s)
- Margarida L. Ferreira
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
| | - João M. M. Araújo
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
| | - Ana B. Pereiro
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
| | - Lourdes F. Vega
- Gas Research Center
- Catalysis and Separation Center (CeCas) and Chemical Engineering Department
- Khalifa University
- Abu Dhabi
- United Arab Emirates
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26
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Lo Celso F, Yoshida Y, Lombardo R, Jafta C, Gontrani L, Triolo A, Russina O. Mesoscopic structural organization in fluorinated room temperature ionic liquids. CR CHIM 2018. [DOI: 10.1016/j.crci.2018.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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27
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Lo Celso F, Yoshida Y, Castiglione F, Ferro M, Mele A, Jafta CJ, Triolo A, Russina O. Direct experimental observation of mesoscopic fluorous domains in fluorinated room temperature ionic liquids. Phys Chem Chem Phys 2018; 19:13101-13110. [PMID: 28489101 DOI: 10.1039/c7cp01971h] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Fluorinated room temperature ionic liquids (FRTILs) represent a class of solvent media that are attracting great attention due to their IL-specific properties as well as features stemming from their fluorous nature. Medium-to-long fluorous tails constitute a well-defined apolar moiety in the otherwise polar environment. Similarly to the case of alkyl tails, such chains are expected to result in the formation of self-assembled fluorous domains. So far, however, no direct experimental observation has been made of the existence of such structural heterogeneities on the nm scale. We report here the first experimental evidence of the existence of mesoscopic spatial segregation of fluorinated domains, on the basis of highly complementary X-ray and neutron scattering data sets (highlighting the importance of the latter probe) and NMR spectroscopy. Data are interpreted using atomistic molecular dynamics simulations, emphasizing the existence of a self-assembly mechanism that delivers segregated fluorous domains, where preferential solubilisation of fluorinated compounds can occur, thus paving the way for several smart applications.
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Affiliation(s)
- F Lo Celso
- Dipartimento di Fisica e Chimica, viale delle Scienze, ed. 17, 90128 Palermo, Italy
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28
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Bastos JC, Carvalho SF, Welton T, Canongia Lopes JN, Rebelo LPN, Shimizu K, Araújo JMM, Pereiro AB. Design of task-specific fluorinated ionic liquids: nanosegregation versus hydrogen-bonding ability in aqueous solutions. Chem Commun (Camb) 2018; 54:3524-3527. [DOI: 10.1039/c8cc00361k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorinated ionic liquids rich-nanosegregated behaviour reduces the impact of the addition of water upon the ionic liquids's H-bond acceptance ability.
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Affiliation(s)
- Joana C. Bastos
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
| | - Sara F. Carvalho
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
| | - Tom Welton
- Department of Chemistry
- Imperial College London
- London
- UK
| | - José N. Canongia Lopes
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Luís Paulo N. Rebelo
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
| | - Karina Shimizu
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - João M. M. Araújo
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
| | - Ana B. Pereiro
- LAQV
- REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
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29
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Vaz ICM, Bastos M, Bernardes CES, Canongia Lopes JN, Santos LMNBF. Solvation of alcohols in ionic liquids – understanding the effect of the anion and cation. Phys Chem Chem Phys 2018; 20:2536-2548. [DOI: 10.1039/c7cp07525a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The effect of the anion and cation nature in the solvation of alcohols in ionic liquids highlighting the R-OH anion H-bond interaction is analysed.
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Affiliation(s)
- Inês C. M. Vaz
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
| | - Margarida Bastos
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
| | - Carlos E. S. Bernardes
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- P-1049-001 Lisboa
- Portugal
| | - José N. Canongia Lopes
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- P-1049-001 Lisboa
- Portugal
| | - Luís M. N. B. F. Santos
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
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30
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San LK, Spisak SN, Dubceac C, Deng SHM, Kuvychko IV, Petrukhina MA, Wang X, Popov AA, Strauss SH, Boltalina OV. Experimental and DFT Studies of the Electron‐Withdrawing Ability of Perfluoroalkyl (R
F
) Groups: Electron Affinities of PAH(R
F
)
n
Increase Significantly with Increasing R
F
Chain Length. Chemistry 2017; 24:1441-1447. [DOI: 10.1002/chem.201704868] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Long K. San
- Department of Chemistry Colorado State University Fort Collins Colorado 80523 USA
| | - Sarah N. Spisak
- Department of Chemistry University at Albany, State University of New York Albany New York 12222 USA
| | - Cristina Dubceac
- Department of Chemistry University at Albany, State University of New York Albany New York 12222 USA
| | - Shihu H M. Deng
- Physical Sciences Division Pacific Northwest National Laboratory MS K8 88, P.O. Box 999 Richland Washington 99352 USA
| | - Igor V. Kuvychko
- Department of Chemistry Colorado State University Fort Collins Colorado 80523 USA
| | - Marina A. Petrukhina
- Department of Chemistry University at Albany, State University of New York Albany New York 12222 USA
| | - Xue‐Bin Wang
- Physical Sciences Division Pacific Northwest National Laboratory MS K8 88, P.O. Box 999 Richland Washington 99352 USA
| | - Alexey A. Popov
- Department of Electrochemistry and Conducting Polymers Liebniz Institute for Solid State and Materials Research Dresden 01069 Germany
| | - Steven H. Strauss
- Department of Chemistry Colorado State University Fort Collins Colorado 80523 USA
| | - Olga V. Boltalina
- Department of Chemistry Colorado State University Fort Collins Colorado 80523 USA
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31
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Miran MS, Yasuda T, Tatara R, Abu Bin Hasan Susan M, Watanabe M. Amphoteric water as acid and base for protic ionic liquids and their electrochemical activity when used as fuel cell electrolytes. Faraday Discuss 2017; 206:353-364. [PMID: 28933496 DOI: 10.1039/c7fd00132k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amphoteric water was mixed with equimolar amounts of a super-strong acid, trifluoromethanesulfonic acid (TfOH), and a super-strong base, 1,8-diazabicyclo[5.4.0]-7-undecene (DBU). Bulk physicochemical and electrochemical properties of the mixtures were compared with those of the best ever reported protic ionic liquid (PIL), diethylmethylammonium trifluoromethanesulfonate ([dema][TfO]), which has excellent physicochemical properties as a fuel cell electrolyte. The acidic mixture ([H3O][TfO]) behaved as a protic ionic liquid, while the basic mixture ([DBU]OH) showed incomplete proton transfer. The Walden plot indicated that [H3O][TfO] behaves as a good PIL, similar to [dema][TfO], whereas [DBU]OH behaves as a poor PIL. [H3O][TfO] showed excellent H2/O2 fuel cell performance at 80 °C; however, the performance deteriorated as the bulk water content increased, because of the retardation of the electrode kinetics due to the oxidation of Pt in the presence of bulk water. On the other hand, [DBU]OH exhibited very poor performance possibly because of the existence of neutral species in the system.
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Affiliation(s)
- Muhammed Shah Miran
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
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32
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Bernardes CES, Shimizu K, Canongia Lopes JN. Comparative structural analyses in four ionic liquid systems: the two low-q peaks of IL structure factor functions. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1396329] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Carlos E. S. Bernardes
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Karina Shimizu
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - José N. Canongia Lopes
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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33
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Pereiro AB, Llovell F, Araújo JMM, Santos ASS, Rebelo LPN, Piñeiro MM, Vega LF. Thermophysical Characterization of Ionic Liquids Based on the Perfluorobutanesulfonate Anion: Experimental and Soft-SAFT Modeling Results. Chemphyschem 2017; 18:2012-2023. [PMID: 28474438 DOI: 10.1002/cphc.201700327] [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: 03/28/2017] [Revised: 05/01/2017] [Indexed: 11/08/2022]
Abstract
Fluorinated ionic liquids (FILs) exhibit complex molecular behavior, where three different nanodomains (polar, hydrogenated nonpolar, and fluorinated nonpolar) have been identified by molecular simulations. Given the high number of possible anion/cation combinations, a theoretical tool able to describe the thermophysical properties of these compounds in a systematic, rapid, and accurate manner is highly desirable. We present here a combined experimental-theoretical methodology to obtain the phase, interface, and transport properties of the 1-alkyl-3-methylimidazolium perfluorobutanesulfonate ([Cn C1 Im][C4 F9 SO3 ]) family. In addition to providing new experimental data, an extended version of the Statistical Associating Fluid Theory (soft-SAFT) is used to describe the physicochemical behavior of the [Cn C1 Im][C4 F9 SO3 ] family. A mesoscopic molecular model is built based on the analysis of the chemical structures of these FILs, and supported by quantum chemical calculations to study the charge distribution of the anion, where only the basic physical features are considered. The resulting molecular parameters are related to the molecular weight, providing the basis for thermophysical predictions of similar compounds. The theory is also able to predict the minimum in the surface tension versus the length of the hydrogenated alkyl chain, experimentally found at n=8. The viscosity parameters are also in agreement with the free-volume calculations obtained from experiments.
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Affiliation(s)
- Ana B Pereiro
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.,Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, ITQB NOVA, Avenida da República, 2780-157, Oeiras, Portugal
| | - Fèlix Llovell
- Departament d'Enginyeria Química i Ciència de Materials, IQS School of Engineering, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - João M M Araújo
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.,Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, ITQB NOVA, Avenida da República, 2780-157, Oeiras, Portugal
| | - Andreia S S Santos
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.,Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, ITQB NOVA, Avenida da República, 2780-157, Oeiras, Portugal
| | - Luís Paulo N Rebelo
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.,Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, ITQB NOVA, Avenida da República, 2780-157, Oeiras, Portugal
| | - Manuel M Piñeiro
- Departamento de Física Aplicada, Facultade de Ciencias, Universidade de Vigo, E36310, Vigo, Spain
| | - Lourdes F Vega
- Alya Technology & Innovation, CPE, C/ Tres Creus 236, 08203, Sabadell, Barcelona, Spain.,Gas Research Center and Chemical Engineering Department, Khalifa University of Science and Technology, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates
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34
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Alves M, Vieira NSM, Rebelo LPN, Araújo JMM, Pereiro AB, Archer M. Fluorinated ionic liquids for protein drug delivery systems: Investigating their impact on the structure and function of lysozyme. Int J Pharm 2017; 526:309-320. [PMID: 28478279 DOI: 10.1016/j.ijpharm.2017.05.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 04/18/2017] [Accepted: 05/02/2017] [Indexed: 12/12/2022]
Abstract
Since the approval of recombinant human insulin by FDA in 1982, more than 200 proteins are currently available for pharmaceutical use to treat a wide range of diseases. However, innovation is still required to develop effective approaches for drug delivery. Our aim is to investigate the potential use of fluorinated ionic liquids (FILs) as drug delivery systems (DDS) for therapeutic proteins. Some initial parameters need to be assessed before further studies can proceed. This work evaluates the impact of FILs on the stability, function, structure and aggregation state of lysozyme. Different techniques were used for this purpose, which included differential scanning fluorimetry (DSF), spectrophotometric assays, circular dichroism (CD), dynamic light scattering (DLS), and scanning and transmission electron microscopy (SEM/TEM). Ionic liquids composed of cholinium-, imidazolium- or pyridinium- derivatives were combined with different anions and analysed at different concentrations in aqueous solutions (below and above the critical aggregation concentration, CAC). The results herein presented show that the addition of ionic liquids had no significant effect on the stability and hydrolytic activity of lysozyme. Moreover, a distinct behaviour was observed in DLS experiments for non-surfactant and surfactant ionic liquids, with the latter encapsulating the protein at concentrations above the CAC. These results encourage us to further study ionic liquids as promising tools for DDS of protein drugs.
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Affiliation(s)
- Márcia Alves
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157, Oeiras, Portugal; LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Nicole S M Vieira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157, Oeiras, Portugal; LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Luís Paulo N Rebelo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157, Oeiras, Portugal; LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - João M M Araújo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157, Oeiras, Portugal; LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Ana B Pereiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157, Oeiras, Portugal; LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.
| | - Margarida Archer
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157, Oeiras, Portugal.
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35
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Gouveia ASL, Bernardes CES, Tomé LC, Lozinskaya EI, Vygodskii YS, Shaplov AS, Lopes JNC, Marrucho IM. Ionic liquids with anions based on fluorosulfonyl derivatives: from asymmetrical substitutions to a consistent force field model. Phys Chem Chem Phys 2017; 19:29617-29624. [DOI: 10.1039/c7cp06081e] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, seven anions including four imide-based and two sulfonate anions are considered and compared.
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Affiliation(s)
- Andreia S. L. Gouveia
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- Avenida Rovisco Pais
| | - Carlos E. S. Bernardes
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- Avenida Rovisco Pais
| | - Liliana C. Tomé
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- Avenida Rovisco Pais
| | - Elena I. Lozinskaya
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian academy of sciences (INEOS RAS)
- 119991 Moscow
- Russia
| | - Yakov S. Vygodskii
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian academy of sciences (INEOS RAS)
- 119991 Moscow
- Russia
| | - Alexander S. Shaplov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian academy of sciences (INEOS RAS)
- 119991 Moscow
- Russia
- Luxembourg Institute of Science and Technology (LIST)
- Esch-sur-Alzette
| | - José N. Canongia Lopes
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- Avenida Rovisco Pais
| | - Isabel M. Marrucho
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- Avenida Rovisco Pais
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36
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Shimizu K, Freitas AA, Canongia Lopes JN. Structural characterization of the [CnC1im][C4F9SO3] ionic liquid series: Alkyl versus perfluoroalkyl side chains. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.08.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Zama I, Gorni G, Borzatta V, Cassani MC, Crupi C, Di Marco G. Fluorinated imidazolium salts having liquid crystal characteristics. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.08.101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Teles ARR, Correia H, Maximo GJ, Rebelo LPN, Freire MG, Pereiro AB, Coutinho JAP. Solid-liquid equilibria of binary mixtures of fluorinated ionic liquids. Phys Chem Chem Phys 2016; 18:25741-50. [PMID: 27603428 DOI: 10.1039/c6cp05372f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Within ionic liquids, fluorinated ionic liquids (FILs) present unique physico-chemical properties and potential applications in several fields. However, the melting point of these neoteric compounds is usually higher due to the presence of fluorine atoms. This drawback may be resolved by, for instance, mixing different FILs to create eutectic mixtures. In this work, binary mixtures of fluoro-containing and fluorinated ionic liquids were considered with the aim of decreasing their melting temperatures as well as understanding and characterizing these mixtures and their phase transitions. Five FILs were selected, allowing the investigation of four binary mixtures, each of them with a common ion. Their solid-liquid and solid-solid equilibria were studied by differential scanning calorimetry and the non-ideality of the mixtures was investigated. Overall, a variety of solid-liquid equilibria with systems exhibiting eutectic behavior, polymorphs with solid-solid phase transitions, and the formation of intermediate compounds and solid solutions were surprisingly found. In addition to these intriguing behaviours, novel FILs with lower melting temperatures were obtained by the formation of binary systems, thus enlarging the application range of FILs at lower temperatures.
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Affiliation(s)
- Ana Rita R Teles
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Luís A, Shimizu K, Araújo JMM, Carvalho PJ, Lopes-da-Silva JA, Canongia Lopes JN, Rebelo LPN, Coutinho JAP, Freire MG, Pereiro AB. Influence of Nanosegregation on the Surface Tension of Fluorinated Ionic Liquids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6130-9. [PMID: 27218210 PMCID: PMC5325320 DOI: 10.1021/acs.langmuir.6b00209] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We have investigated, both theoretically and experimentally, the balance between the presence of alkyl and perfluoroalkyl side chains on the surface organization and surface tension of fluorinated ionic liquids (FILs). A series of ionic liquids (ILs) composed of 1-alkyl-3-methylimidazolium cations ([CnC1im] with n = 2, 4, 6, 8, 10, or 12) combined with the perfluorobutanesulfonate anion was used. The surface tensions of the investigated liquid salts are considerably lower than those reported for non-fluorinated ionic liquids. The most surprising and striking feature is the identification, for the first time, of a minimum at n = 8 in the surface tension versus the length of the IL cation alkyl side chain. Supported by molecular dynamics (MD) simulations, it was found that this trend is a result of the competition between the two nonpolar domains (perfluorinated and aliphatic) pointing toward the gas-liquid interface, a phenomenon which occurs in ILs with perfluorinated anions. Furthermore, these ILs present the lowest surface entropy reported to date.
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Affiliation(s)
- Andreia Luís
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Karina Shimizu
- Centro de Química Estrutural, IST/UTL, 1049 001 Lisboa, Portugal
| | - João M. M. Araújo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Pedro J. Carvalho
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - José N. Canongia Lopes
- Centro de Química Estrutural, IST/UTL, 1049 001 Lisboa, Portugal
- Corresponding Author (M.G. Freire); (J.N.C. Lopes); (A.B. Pereiro), Fax: +351 214411277; Tel: +351 214469471
| | - Luís Paulo N. Rebelo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - João A. P. Coutinho
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G. Freire
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Corresponding Author (M.G. Freire); (J.N.C. Lopes); (A.B. Pereiro), Fax: +351 214411277; Tel: +351 214469471
| | - Ana B. Pereiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
- Corresponding Author (M.G. Freire); (J.N.C. Lopes); (A.B. Pereiro), Fax: +351 214411277; Tel: +351 214469471
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40
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Vieira NSM, Luís A, Reis PM, Carvalho PJ, Lopes-da-Silva JA, Esperança JMSS, Araújo JMM, Rebelo LPN, Freire MG, Pereiro AB. Fluorination effects on the thermodynamic, thermophysical and surface properties of ionic liquids. THE JOURNAL OF CHEMICAL THERMODYNAMICS 2016; 97:354-361. [PMID: 27642190 PMCID: PMC5024757 DOI: 10.1016/j.jct.2016.02.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper reports the thermal, thermodynamic, thermophysical and surface properties of eight ionic liquids with fluorinated alkyl side chain lengths equal or greater than four carbon atoms. Melting and decomposition temperatures were determined together with experimental densities, surface tensions, refractive indices, dynamic viscosities and ionic conductivities in a temperature interval ranging from 293.15 to 353.15 K. The surface properties of these fluorinated ionic liquids were discussed and several thermodynamic functions, as well as critical temperatures, were estimated. Coefficients of isobaric thermal expansion, molecular volumes and free volume effects were calculated from experimental values of density and refractive index and compared with previous data. Finally, Walden plots were used to evaluate the ionicity of the investigated ionic liquids.
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Affiliation(s)
- N. S. M. Vieira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - A. Luís
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - P. M. Reis
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - P. J. Carvalho
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - J. A. Lopes-da-Silva
- QOPNA Unit, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - J. M. S. S. Esperança
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - J. M. M. Araújo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - L. P. N. Rebelo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - M. G. Freire
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - A. B. Pereiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
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41
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Billeci F, D'Anna F, Marullo S, Noto R. Self-assembly of fluorescent diimidazolium salts: tailor properties of the aggregates changing alkyl chain features. RSC Adv 2016. [DOI: 10.1039/c6ra10250f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Self assembly of fluorescent diimidazolium NDI salts showed properties of aggregates changing with alkyl chain length, with an odd–even effect.
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Affiliation(s)
| | | | | | - Renato Noto
- Dipartimento STEBICEF
- Sezione di Chimica
- 90128 Palermo
- Italy
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42
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Chancelier L, Boyron O, Gutel T, Santini C. Thermal stability of imidazolium-based ionic liquids. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2016. [DOI: 10.17721/fujcv4i1p51-64] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This work highlights the factors tuning the thermal stability of imidazolium-based ionic liquids (IL) associated to bis(trifluoromethanesulfonyl)imide anion [NTf2]. The decomposition temperatures (Td) were evaluated by thermogravimetric analyses (TGA) with optimized parameters to obtain reproducible Td. The impact of the alkyl chain length and of the presence of functional groups and unsaturations on Td were evaluated. The thermal behaviour was governed by Van der Waals interactions between alkyl chains, and by inter and intra coulombic interactions such as hydrogen bonds.
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43
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Zubeir LF, Rocha MAA, Vergadou N, Weggemans WMA, Peristeras LD, Schulz PS, Economou IG, Kroon MC. Thermophysical properties of imidazolium tricyanomethanide ionic liquids: experiments and molecular simulation. Phys Chem Chem Phys 2016; 18:23121-38. [DOI: 10.1039/c6cp01943a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The low-viscous tricyanomethanide ([TCM]−)-based ionic liquids (ILs) are gaining increasing interest as attractive fluids for a variety of industrial applications.
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Affiliation(s)
- Lawien F. Zubeir
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5612 AE Eindhoven
- The Netherlands
| | - Marisa A. A. Rocha
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5612 AE Eindhoven
- The Netherlands
- University of Bremen
| | - Niki Vergadou
- Molecular Thermodynamics and Modelling of Materials Laboratory
- Institute of Nanoscience and Nanotechnology
- National Center of Scientific Research (NCSR) “Demokritos”
- GR-15310 Aghia Paraskevi Attikis
- Greece
| | - Wilko M. A. Weggemans
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5612 AE Eindhoven
- The Netherlands
| | - Loukas D. Peristeras
- Molecular Thermodynamics and Modelling of Materials Laboratory
- Institute of Nanoscience and Nanotechnology
- National Center of Scientific Research (NCSR) “Demokritos”
- GR-15310 Aghia Paraskevi Attikis
- Greece
| | - Peter S. Schulz
- Department of Chemical and Biological Engineering
- Institute of Chemical Reaction Engineering
- University of Erlangen-Nuremberg
- D-91058 Erlangen
- Germany
| | - Ioannis G. Economou
- Molecular Thermodynamics and Modelling of Materials Laboratory
- Institute of Nanoscience and Nanotechnology
- National Center of Scientific Research (NCSR) “Demokritos”
- GR-15310 Aghia Paraskevi Attikis
- Greece
| | - Maaike C. Kroon
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5612 AE Eindhoven
- The Netherlands
- The Petroleum Institute
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44
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Abstract
Exfoliation constitutes a promising and straightforward technique to obtain a high-quality product (graphene, GRA) from an affordable source (graphite).
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Affiliation(s)
- Vitaly V. Chaban
- Instituto de Ciência e Tecnologia
- Universidade Federal de São Paulo
- São José dos Campos
- Brazil
| | - Eudes Eterno Fileti
- Instituto de Ciência e Tecnologia
- Universidade Federal de São Paulo
- São José dos Campos
- Brazil
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