Readily biodegradable and low-toxic biocompatible ionic liquids for cellulose processing

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87325-87331 ◽  
Author(s):  
Marta Markiewicz ◽  
Joanna Maszkowska ◽  
Véronique Nardello-Rataj ◽  
Stefan Stolte
Keyword(s):  
Ionic Liquids ◽  
Environmental Hazard ◽  
Hazard Potential ◽  
Low Toxicity ◽  
Low Toxic ◽  
Betaine Ester

Ecotoxicity and biodegradability of ILs intended for cellulose processing were tested. Betaine-ester levulinate exhibits low environmental hazard potential (full degradability, low toxicity). Other ILs were partially degradable and moderately toxic.

scholarly journals Cholinium amino acid-based ionic liquids

2021 ◽  
Author(s):  
Andrea Le Donne ◽  
Enrico Bodo
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Computational Chemistry ◽  
Special Class ◽  
State Of The Art ◽  
Short Review ◽  
Research Activity ◽  
Intensive Research ◽  
Low Toxicity ◽  
Molecular Components

AbstractBoosted by the simplicity of their synthesis and low toxicity, cholinium and amino acid-based ionic liquids have attracted the attention of researchers in many different fields ranging from computational chemistry to electrochemistry and medicine. Among the uncountable IL variations, these substances occupy a space on their own due to their exceptional biocompatibility that stems from being entirely made by metabolic molecular components. These substances have undergone a rather intensive research activity because of the possibility of using them as greener replacements for traditional ionic liquids. We present here a short review in the attempt to provide a compendium of the state-of-the-art scientific research about this special class of ionic liquids based on the combination of amino acid anions and cholinium cations.

A review of thermophysical properties and potential of ionic liquids for thermal applications

2021 ◽  
Author(s):  
Elaine Fabre ◽  
S M Sohel Murshed
Keyword(s):  
Ionic Liquids ◽  
Vapor Pressure ◽  
Thermophysical Properties ◽  
Low Toxicity

In recent years ionic liquids have received tremendous attention from the researchers and industrial people mainly due to their unique properties, such as low vapor pressure, low toxicity, high thermal...

scholarly journals Efficient Hydrolysis of Lignocellulose by Acidic Ionic Liquids under Low-Toxic Condition to Microorganisms

Catalysts ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 108 ◽  
Author(s):  
Kosuke Kuroda ◽  
Ken Inoue ◽  
Kyohei Miyamura ◽  
Heri Satria ◽  
Kenji Takada ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Acidic Ionic Liquids ◽  
Low Toxic ◽  
Hydrolysis Of

scholarly journals New Active Pharmaceutical Ingredient-Ionic Liquids (API-ILs) Derived from Indomethacin and Mebendazole

Proceedings ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 48 ◽  
Author(s):  
◽  
Emilia Tojo
Keyword(s):  
Ionic Liquids ◽  
Water Solubility ◽  
Methanesulfonic Acid ◽  
Active Pharmaceutical Ingredient ◽  
High Water ◽  
Solubility In Water ◽  
Pharmaceutical Ingredients ◽  
Low Toxicity ◽  
Low Solubility ◽  
High Water Solubility

The transformation of two solid Active Pharmaceutical Ingredients (APIs) into new ionic liquids (IL)s that incorporate APIs (API-ILs) is reported. The structures of the APIs (indomethacin and mebendazole) were selected by their susceptibility to being transformed into API-ILs (either to form the cation or the anion) and their limited bioavailability due to their low solubility in water. The counterions, such as those derived from 2-dimethylaminoethanol (DMEA), tetramethylguanidine (TMG), 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), 1,4-diazabicyclo[2.2.2] (TED), <i>p</i>-toluensulfonic acid, glycolic acid, methanesulfonic acid, and saccharin, were carefully chosen, aiming for high biocompatibility, low toxicity, and high water solubility. The synthesis was carried out by direct treatment of the API with the corresponding selected acid or base. Finally, the solubility in water of all the synthesized salts was determined.

Enantioselective Tsuji-Trost Reactions in Low Toxicity Ionic Liquids

2016 ◽  
Vol 3 (2) ◽  
pp. 181-189
Author(s):  
Mukund Ghavre ◽  
Brid Quilty ◽  
Nicholas Gathergood
Keyword(s):  
Ionic Liquids ◽  
Low Toxicity

scholarly journals Ionic Liquids as High-Performance Lubricants and Lubricant Additives

2021 ◽  
Author(s):  
Hong Guo ◽  
Patricia Iglesias Victoria
Keyword(s):  
Ionic Liquids ◽  
Physicochemical Properties ◽  
High Performance ◽  
Negative Impact ◽  
Molecular Structures ◽  
Lubricant Additives ◽  
Friction Reduction ◽  
Protic Ionic Liquids ◽  
Protection Mechanisms ◽  
Low Toxicity

Taking into account the environmental awareness and ever-growing restrictive regulations over contamination, the study of new lubricants or lubricant additives with high performance and low toxicity over the traditional lubes to reduce the negative impact on the environment is needed. In this chapter, the current literature on the use of ionic liquids, particularly protic ionic liquids, as high-performance lubricants and lubricant additives to different types of base lubricants are reviewed and described. The relation between ionic liquids structures and their physicochemical properties, such as viscosity, thermal stability, corrosion behavior, biodegradability, and toxicity, is elaborated. Friction reduction and wear protection mechanisms of the ionic liquids are discussed with relation to their molecular structures and physicochemical properties.

scholarly journals Understanding the physical properties, toxicities and anti-microbial activities of choline-amino acid-based salts: Low-toxic variants of ionic liquids

2016 ◽  
Vol 221 ◽  
pp. 133-138 ◽  
Author(s):  
Amandine Foulet ◽  
Ouahid Ben Ghanem ◽  
Mohanad El-Harbawi ◽  
Jean-Marc Lévêque ◽  
M.I. Abdul Mutalib ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Physical Properties ◽  
Microbial Activities ◽  
Low Toxic

PLA Nanofibers Electrospun from System of Low Toxicity Solvent

2011 ◽  
Vol 221 ◽  
pp. 657-661
Author(s):  
Li Wei Liu ◽  
Wei Min Kang ◽  
Bo Wen Cheng ◽  
Ya Liu
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Low Toxicity ◽  
Low Toxic ◽  
Scanning Electron

In this paper polylactide (PLA) nanofibers were successfully prepared via electrospinning using low toxic 1,4-dioxane and acetone as co-solvents. The morphology of nanofibers was studied by scanning electron microscopy (SEM) at the different weight ratios of co-solvent, concentrations of spinning solution, electrostatic voltages and collecting distance. Results indicate that the finer and uniform nanofibers were electrospun from the concentration of the spinning solutions at 8 wt.%, 1,4-dioxane and acetone with ratio of 40/60 (w/w), the spinning voltage at 20kV, the collecting distance at 180 mm and the extruding speed at 5 mL/h.

scholarly journals Discovering Low Toxicity Ionic Liquids for Saccharomyces cerevisiae by Using the Agar Well Diffusion Test

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1163 ◽  
Author(s):  
Fatiha Missoun ◽  
Antonia Pérez de los Ríos ◽  
Víctor Ortiz-Martínez ◽  
María José Salar-García ◽  
Jesús Hernández-Fernández ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Ionic Liquids ◽  
Alkyl Chain ◽  
Biotechnological Applications ◽  
Diffusion Test ◽  
Preliminary Screening ◽  
Low Toxicity ◽  
Anions And Cations ◽  
Enormous Number ◽  
Cation Nature

Ionic liquids (ILs) are new solvents widely used in many technologies due to their unique and advantageous physicochemical properties. In biotechnological applications, ILs can be used along with microorganisms such as Saccharomyces cerevisiae. Due to the enormous number of ILs that can be synthesized through the combination of different anions and cations, it is necessary to have an easy and quick tool for the preliminary screening of their biocompatibility for being used in biotechnological applications. In this work, the agar well diffusion test was successfully applied as a rapid method to identify toxic/nontoxic ILs toward S. cerevisiae. Sixty-three ILs containing a diverse set of cations and anions were used. Through this methodology, nine fully biocompatible ILs toward S. cerevisiae were identified, including: [Bmim+] [NO3−], [HOPmim+] [NO3−], [Bmim+] [NTf2−], [N8,8,8,1+] [NTf2−], [S2,2,2+] [NTf2−], [EMPyr+] [NTf2−], [BMPi+] [NTf2−], [Moxa+] [MeSO4−] and [Chol+] [H2PO4−]. The analysis of the results also provides preliminary rules to enable the design of biocompatible ILs with S. cerevisiae. In this context, the toxicity was mainly determined by the cation nature although some anions can also display a strong influence on the IL biocompatibility as the bistriflimide anion. Besides, it was observed that an increase in the alkyl chain length of cations, such as imidazolium or pyridinium, involves an increase in the IL toxicity.

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