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Aqueous biphasic systems: a boost brought about by using ionic liquids.
A critical review provides a judicious assessment of the available literature on ionic-liquid-based Aqueous Biphasic Systems and addresses two of the main applications of ionic liquid-based ABS: extraction of biomolecules and other added-value compounds, and their use as alternative approaches for removing and recovering ionic liquids from aqueous media. Expand
Ionic-Liquid-Mediated Extraction and Separation Processes for Bioactive Compounds: Past, Present, and Future Trends
The key accomplishments and future challenges to the field are discussed, with particular emphasis on the major lacunas found within the IL community dedicated to separation processes and by suggesting some steps to overcome the current limitations. Expand
High-performance extraction of alkaloids using aqueous two-phase systems with ionic liquids
Ionic-liquid-based aqueous two-phase systems are great candidates for the replacement of volatile organic compounds in typical liquid–liquid extractions. This work shows clear evidence for theExpand
Thermophysical Characterization of Ionic Liquids Able To Dissolve Biomass
Among new potential solvents for lignocellulosic materials, ionic liquids (ILs) are attracting considerable attention. Hence, the knowledge of the thermophysical properties of such fluids isExpand
Extraction of vanillin using ionic-liquid-based aqueous two-phase systems
To explore proper extractive solvents and to design an optimized separation process it is highly imperative to understand the molecular-based phenomena governing the solutes partitioning. Moreover,Expand
Hydrolysis of tetrafluoroborate and hexafluorophosphate counter ions in imidazolium-based ionic liquids.
The results noticeably indicate that it is suitable to use aqueous solutions of hexafluorophosphate- and tetrafluoroborate-based ILs at moderate temperatures while acidic conditions promote the anion hydrolysis, even at low temperatures. Expand
Mutual solubilities of water and hydrophobic ionic liquids.
From experimental measurements of the temperature dependence of ionic liquid solubilities in water, the thermodynamic molar functions of solution, such as Gibbs energy, enthalpy, and entropy at infinite dilution were determined, showing that the solubility of these ILs in water is entropically driven and that the anion solvation at the IL-rich phase controls their solubabilities in water. Expand
Surface tension of ionic liquids and ionic liquid solutions.
This critical review analyses most of the surface tension data reported between 2001 and 2010 (187 references) and concludes that ionic liquids present characteristic surface behavior and distinctive trends of their surface tension versus temperature. Expand
Extraction of Biomolecules Using Phosphonium-Based Ionic Liquids + K3PO4 Aqueous Biphasic Systems
The evaluated IL-based ABS have been shown to be prospective extraction media, particularly for hydrophobic biomolecules, with several advantages over conventional polymer-inorganic salt ABS. Expand
Enhanced extraction of proteins using cholinium-based ionic liquids as phase-forming components of aqueous biphasic systems.
The proposed ABS may be envisaged as a more effective and biocompatible approach for the separation and purification of other value-added proteins. Expand