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Maculewicz J, Białk-Bielińska A, Kowalska D, Stepnowski P, Stolte S, Beil S, Gajewicz-Skretna A, Dołżonek J. Bioconcentration potential of ionic liquids: New data on membrane partitioning and its comparison with predictions obtained by COSMOmic. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184320. [PMID: 38583701 DOI: 10.1016/j.bbamem.2024.184320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/19/2024] [Accepted: 04/01/2024] [Indexed: 04/09/2024]
Abstract
Ionic liquids (ILs) have recently gained significant attention in both the scientific community and industry, but there is a limited understanding of the potential risks they might pose to the environment and human health, including their potential to accumulate in organisms. While membrane and storage lipids have been considered as primary sorption phases driving bioaccumulation, in this study we used an in vitro tool known as solid-supported lipid membranes (SSLMs) to investigate the affinity of ILs to membrane lipid - phosphatidylcholine and compare the results with an existing in silico model. Our findings indicate that ILs may have a strong affinity for the lipids that form cell membranes, with the key factor being the length of the cation's side chain. For quaternary ammonium cations, increase in membrane affinity (logMA) was observed from 3.45 ± 0.06 at 10 carbon atoms in chain to 4.79 ± 0.06 at 14 carbon atoms. We also found that the anion can significantly affect the membrane partitioning of the cation, even though the anions themselves tend to have weaker interactions with phospholipids than the cations of ILs. For 1-methyl-3-octylimidazolium cation the presence of tricyanomethanide anion caused increase in logMA to 4.23 ± 0.06. Although some of our data proved to be consistent with predictions made by the COSMOmic model, there are also significant discrepancies. These results suggest that further research is needed to improve our understanding of the mechanisms and structure-activity relationships involved in ILs bioconcentration and to develop more accurate predictive models.
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Affiliation(s)
- Jakub Maculewicz
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Anna Białk-Bielińska
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Dorota Kowalska
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Piotr Stepnowski
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Stefan Stolte
- Institute of Water Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Stephan Beil
- Institute of Water Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Agnieszka Gajewicz-Skretna
- Laboratory of Environmental Chemoinformatics, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Joanna Dołżonek
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
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Veríssimo NVP, Mussagy CU, Bento HBS, Pereira JFB, Santos-Ebinuma VDC. Ionic liquids and deep eutectic solvents for the stabilization of biopharmaceuticals: A review. Biotechnol Adv 2024; 71:108316. [PMID: 38199490 DOI: 10.1016/j.biotechadv.2024.108316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/12/2024]
Abstract
Biopharmaceuticals have allowed the control of previously untreatable diseases. However, their low solubility and stability still hinder their application, transport, and storage. Hence, researchers have applied different compounds to preserve and enhance the delivery of biopharmaceuticals, such as ionic liquids (ILs) and deep eutectic solvents (DESs). Although the biopharmaceutical industry can employ various substances for enhancing formulations, their effect will change depending on the properties of the target biomolecule and environmental conditions. Hence, this review organized the current state-of-the-art on the application of ILs and DESs to stabilize biopharmaceuticals, considering the properties of the biomolecules, ILs, and DESs classes, concentration range, types of stability, and effect. We also provided a critical discussion regarding the potential utilization of ILs and DESs in pharmaceutical formulations, considering the restrictions in this field, as well as the advantages and drawbacks of these substances for medical applications. Overall, the most applied IL and DES classes for stabilizing biopharmaceuticals were cholinium-, imidazolium-, and ammonium-based, with cholinium ILs also employed to improve their delivery. Interestingly, dilute and concentrated ILs and DESs solutions presented similar results regarding the stabilization of biopharmaceuticals. With additional investigation, ILs and DESs have the potential to overcome current challenges in biopharmaceutical formulation.
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Affiliation(s)
- Nathalia Vieira Porphirio Veríssimo
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University, CEP: 14801-902 Araraquara, SP, Brazil; Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences, São Paulo University, CEP: 14040-020 Ribeirão Preto, SP, Brazil.
| | - Cassamo Usemane Mussagy
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota 2260000, Chile.
| | - Heitor Buzetti Simões Bento
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University, CEP: 14801-902 Araraquara, SP, Brazil.
| | | | - Valéria de Carvalho Santos-Ebinuma
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University, CEP: 14801-902 Araraquara, SP, Brazil.
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Islamov II, Yusupova AV, D'yakonov VA, Dzhemilev UM. Synthesis of new ionic liquids based on (5Z,9Z)-alkadienoic acids and choline. MENDELEEV COMMUNICATIONS 2023. [DOI: 10.1016/j.mencom.2023.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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4
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Ionic liquids as protein stabilizers for biological and biomedical applications: A review. Biotechnol Adv 2022; 61:108055. [DOI: 10.1016/j.biotechadv.2022.108055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 11/22/2022]
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Jia H, Wang S, Xu Y, Wang T, Zhang L, Song J, Zhang X, Song L, Jia H, Yan H. Systematic investigation on the abnormal surface and interfacial activity of fatty acid ionic liquids. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127902] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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A green and recyclable CuSO4·5H2O/ionic liquid catalytic system for the CO2-promoted hydration of propargyl alcohols: an efficient assembly of α-hydroxy ketones. J Catal 2022. [DOI: 10.1016/j.jcat.2021.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Cho CW, Pham TPT, Zhao Y, Stolte S, Yun YS. Review of the toxic effects of ionic liquids. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 786:147309. [PMID: 33975102 DOI: 10.1016/j.scitotenv.2021.147309] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/15/2021] [Accepted: 04/18/2021] [Indexed: 05/11/2023]
Abstract
Interest in ionic liquids (ILs), called green or designer solvents, has been increasing because of their excellent properties such as thermal stability and low vapor pressure; thus, they can replace harmful organic chemicals and help several industrial fields e.g., energy-storage materials production and biomaterial pretreatment. However, the claim that ILs are green solvents should be carefully considered from an environmental perspective. ILs, given their minimal vapor pressure, may not directly cause atmospheric pollution. However, they have the potential to cause adverse effects if leaked into the environment, for instance if they are spilled due to human mistakes or technical errors. To estimate the risks of ILs, numerous ILs have had their toxicity assessed toward several micro- and macro-organisms over the past few decades. Since the toxic effects of ILs depend on the method of estimating toxicity, it is necessary to briefly summarize and comprehensively discuss the biological effects of ILs according to their structure and toxicity testing levels. This can help simplify our understanding of the toxicity of ILs. Therefore, in this review, we discuss the key findings of toxicological information of ILs, collect some toxicity data of ILs to different species, and explain the influence of IL structure on their toxic properties. In the discussion, we estimated two different sensitivity values of toxicity testing levels depending on the experiment condition, which are theoretical magnitudes of the inherent sensitivity of toxicity testing levels in various conditions and their changes in biological response according to the change in IL structure. Finally, some perspectives, future research directions, and limitations to toxicological research of ILs, presented so far, are discussed.
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Affiliation(s)
- Chul-Woong Cho
- Department of Bioenergy Science and Technology, Chonnam National University, Gwangju, South Korea.
| | - Thi Phuong Thuy Pham
- Faculty of Biotechnology, HoChiMihn University of Food Industry, Ho Chi Minh City, Viet Nam
| | - Yufeng Zhao
- College of Resource and Environmental Science, South-Central University for Nationalities, Wuhan 430074, Hubei Province, China
| | - Stefan Stolte
- Technische Universität Dresden, Faculty of Environmental Sciences, Department of Hydrosciences, Institute of Water Chemistry, Bergstraße 66, 01062 Dresden, Germany
| | - Yeoung-Sang Yun
- School of Chemical Engineering, Chonbuk National University, 567 Beakje-dearo, Deokjin-gu, Jeonju, Jeonbuk 561-756, South Korea.
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Kumer A, Khan MW. The effect of alkyl chain and electronegative atoms in anion on biological activity of anilinium carboxylate bioactive ionic liquids and computational approaches by DFT functional and molecular docking. Heliyon 2021; 7:e07509. [PMID: 34296013 PMCID: PMC8282962 DOI: 10.1016/j.heliyon.2021.e07509] [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: 02/01/2021] [Revised: 03/12/2021] [Accepted: 07/05/2021] [Indexed: 01/22/2023] Open
Abstract
The Brønsted acid-base neutralization was executed for synthesis of the anilinium carboxylate ionic liquids (ACILs), and obtained highly viscous liquids with yields about (90-94)%. These ILs were purified by distillation process and used vacuum oven, as well as characterized by FT-IR, UV spectroscopy and 1H-NMR. To evaluate the antimicrobial activity, the well diffusion method was used against eight human pathogenic bacteria, showing inhibition of zone at 13 mm-27 mm, and three fungi with result about 60%. Plus, the DFT functional from material studio 8.0 was used for evaluation of computational screening for estimating the chemical reactivity, HOMO, LUMO and HOMO-LUMO gap, recorded from -7.252 to -8.20 kcal/mol. The IL05 has showed about -6.5 kcal/mol docking score as standard inhibitor, as and higher than starting. Form AMDET properties, it has revealed that they have low toxicity, higher absorption through the biological system and non-carcinogenic. Finally, the electronegative groups, such as F, Cl and Br atoms in anion can show the higher antimicrobial activity and molecular docking score among all others while F atom containing IL05 shows the highest docking score and antimicrobial activity. However, it is concluded that rather than long large alkyl chain of anion, F atom (the highest electronegative atom) containing anion is better for biologically significance ILs.
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Affiliation(s)
- Ajoy Kumer
- Organic Research Laboratory, Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
| | - Md. Wahab Khan
- Organic Research Laboratory, Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
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Moshikur RM, Ali MK, Wakabayashi R, Moniruzzaman M, Goto M. Formation and potential application of micelles composed of biocompatible N-lauroyl-amino acid ionic liquids surfactant. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114424] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Nguyen MN, Kragl U, Barke I, Lange R, Lund H, Frank M, Springer A, Aladin V, Corzilius B, Hollmann D. Coagulation using organic carbonates opens up a sustainable route towards regenerated cellulose films. Commun Chem 2020; 3:116. [PMID: 36703311 PMCID: PMC9814763 DOI: 10.1038/s42004-020-00360-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/17/2020] [Indexed: 01/29/2023] Open
Abstract
Due to their biodegradability, biocompatibility and sustainable nature, regenerated cellulose (RC) films are of enormous relevance for green applications including medicinal, environmental and separation technologies. However, the processes used so far are very hazardous to the environment and health. Here, we disclose a simple, fast, environmentally friendly, nontoxic and cost-effective processing method for preparing RC films. High quality non-transparent and transparent RC films and powders can be produced by dissolution with tetrabutylphosphonium hydroxide [TBPH]/[TBP]+[OH]- followed by coagulation with organic carbonates. Investigations on the coagulation mechanism revealed an extremely fast reaction between the carbonates and the hydroxide ions. The high-quality powders and films were fully characterized with respect to structure, surface morphology, permeation and selectivity. This method represents a future-oriented green alternative to known industrial processes.
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Affiliation(s)
- Mai N. Nguyen
- grid.10493.3f0000000121858338Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059 Rostock, Germany ,grid.440792.cSchool of Chemical Engineering, Hanoi University of Science and Technology, No. 1 Dai Co Viet street, 10000 Hanoi, Vietnam ,grid.10493.3f0000000121858338Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059 Rostock, Germany
| | - Udo Kragl
- grid.10493.3f0000000121858338Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059 Rostock, Germany ,grid.10493.3f0000000121858338Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059 Rostock, Germany ,grid.440957.b0000 0000 9599 5258Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Ingo Barke
- grid.10493.3f0000000121858338Institute of Physics, University of Rostock, Albert-Einstein-Straße 23-24, 18059 Rostock, Germany
| | - Regina Lange
- grid.10493.3f0000000121858338Institute of Physics, University of Rostock, Albert-Einstein-Straße 23-24, 18059 Rostock, Germany
| | - Henrik Lund
- grid.440957.b0000 0000 9599 5258Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Marcus Frank
- grid.10493.3f0000000121858338Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059 Rostock, Germany ,grid.10493.3f0000000121858338Medical Biology and Electron Microscopy Centre, University Medicine Rostock, 18059 Rostock, Germany
| | - Armin Springer
- grid.10493.3f0000000121858338Medical Biology and Electron Microscopy Centre, University Medicine Rostock, 18059 Rostock, Germany
| | - Victoria Aladin
- grid.10493.3f0000000121858338Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059 Rostock, Germany ,grid.10493.3f0000000121858338Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059 Rostock, Germany
| | - Björn Corzilius
- grid.10493.3f0000000121858338Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059 Rostock, Germany ,grid.10493.3f0000000121858338Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059 Rostock, Germany
| | - Dirk Hollmann
- grid.10493.3f0000000121858338Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059 Rostock, Germany ,grid.10493.3f0000000121858338Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059 Rostock, Germany
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12
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Kumari M, Gupta A, Shobhna, Kashyap HK. Molecular Dynamics Evaluation of the Effect of Cholinium Phenylalaninate Biocompatible Ionic Liquid on Biomimetic Membranes. J Phys Chem B 2020; 124:6748-6762. [PMID: 32786926 DOI: 10.1021/acs.jpcb.0c03433] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Toward the search of sustainable green solvents, choline amino acid ([Ch][AA]) ionic liquids (ILs), mainly derived from renewable feedstocks, have emerged as a promising atoxic alternative to the conventional solvents. Recent studies have shown the remarkably benign nature of cholinium-based ILs against biomimetic phospholipid membranes. However, few of the contemporaneous experimental studies have contradicted the aforesaid ecofriendly nature of these ILs with anions comprising longer alkyl or aromatic tails. Aiming to understand the influence of amino acid side-chain variation in a particular bio-IL on biomembranes, herein, we have evaluated the effect of cholinium phenylalaninate ([Ch][Phe]) IL on the structural stability of homogeneous biomimetic 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine (POPE) lipid bilayers using atomistic molecular dynamics simulations. Although we observe spontaneous intercalation of aromatic rings of [Phe]- anions in the hydrophobic region of the bilayers, the polar backbone of the anion remains coordinated with the lipid polar part through strong electrostatic and H-bonding interactions. Besides, the [Ch]+ cations get accumulated at the lipid-water interface to counter the excess negative charge density. The intercalation of the anionic rings causes significant perturbations in the lipid structural arrangement while still maintaining the bilayer integrity. The quantitative evaluation to probe the deteriorating effect of this bio-IL application establishes anions as the principal component causing the observed structural perturbations. The analysis of the structural properties along with the free energy assessment reveals the higher efficacy of [Ch][Phe] bio-IL to perturb the POPE bilayer structure than the POPC bilayer.
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Affiliation(s)
- Monika Kumari
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Aditya Gupta
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shobhna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Hemant K Kashyap
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Sivapragasam M, Moniruzzaman M, Goto M. An Overview on the Toxicological Properties of Ionic Liquids toward Microorganisms. Biotechnol J 2020; 15:e1900073. [PMID: 31864234 DOI: 10.1002/biot.201900073] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 11/21/2019] [Indexed: 12/27/2022]
Abstract
Ionic liquids (ILs), a class of materials with unique physicochemical properties, have been used extensively in the fields of chemical engineering, biotechnology, material sciences, pharmaceutics, and many others. Because ILs are very polar by nature, they can migrate into the environment with the possibility of inclusion in the food chain and bioaccumulation in living organisms. However, the chemical natures of ILs are not quintessentially biocompatible. Therefore, the practical uses of ILs must be preceded by suitable toxicological assessments. Among different methods, the use of microorganisms to evaluate IL toxicity provides many advantages including short generation time, rapid growth, and environmental and industrial relevance. This article reviews the recent research progress on the toxicological properties of ILs toward microorganisms and highlights the computational prediction of various toxicity models.
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Affiliation(s)
- Magaret Sivapragasam
- Biotechnology Department, QUEST International University Perak, 30250, Ipoh, Perak, Malaysia
| | - Muhammad Moniruzzaman
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak, Malaysia.,Center of Researches in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak, Malaysia
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan
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Susceptibility of biomembrane structure towards amphiphiles, ionic liquids, and deep eutectic solvents. ADVANCES IN BIOMEMBRANES AND LIPID SELF-ASSEMBLY 2020. [DOI: 10.1016/bs.abl.2020.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Bhat PA, Pandit SA, Rather MA, Bhat MA. Aqueous micellar solutions of surface active ionic liquids as eco-green solvents for electrodexoification of halocarbons: A case study of dodecylmethylimidazolium chloride micelle solubilized carbon tetrachloride. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111129] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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16
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Nguyen MN, Kragl U, Michalik D, Ludwig R, Hollmann D. The Effect of Additives on the Viscosity and Dissolution of Cellulose in Tetrabutylphosphonium Hydroxide. CHEMSUSCHEM 2019; 12:3458-3462. [PMID: 31161712 DOI: 10.1002/cssc.201901316] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 05/30/2019] [Indexed: 06/09/2023]
Abstract
An electrolyte solution of tetrabutylphosphonium hydroxide (TBPH) in water can dissolve over 20 wt % of cellulose in minutes and therefore constitutes a promising alternative green solvent system compared to known imidazolium- or dimethylacetamide-based systems. Overcoming the disadvantage of the extremely high viscosity of TBPH/cellulose solutions can facilitate their use for various applications. In this study, the application of cosolvents for the reduction, and thus adjustability, of the viscosity is addressed. Even well-known antisolvents can be easily deployed, resulting in a dramatic drop in viscosity. High concentrations of cosolvents (excluding ethanol) are tolerated without precipitation of the dissolved cellulose. Furthermore, the effect of the cosolvents on the additional dissolution of cellulose is discussed. The amount of dissolved cellulose is quantified by 13 C NMR spectroscopy.
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Affiliation(s)
- Mai N Nguyen
- Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059, Rostock, Germany
- School of Chemical Engineering, Hanoi University of Science and Technology, No. 1 Dai Co Viet street, 10000, Hanoi, Vietnam
| | - Udo Kragl
- Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059, Rostock, Germany
- Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059, Rostock, Germany
| | - Dirk Michalik
- Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059, Rostock, Germany
- Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Ralf Ludwig
- Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059, Rostock, Germany
- Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3A, 18059, Rostock, Germany
- Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Dirk Hollmann
- Department Life, Light & Matter, Faculty for Interdisciplinary Research, University of Rostock, Albert-Einstein-Straße 25, 18059, Rostock, Germany
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Gomes JM, Silva SS, Reis RL. Biocompatible ionic liquids: fundamental behaviours and applications. Chem Soc Rev 2019; 48:4317-4335. [DOI: 10.1039/c9cs00016j] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The bio- and eco-friendly nature of biocompatible ionic liquids contributes to their widespread use in a wide range of fields.
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Affiliation(s)
- Joana M. Gomes
- 3B's Research Group, Biomaterials, Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Guimarães
- Portugal
| | - Simone S. Silva
- 3B's Research Group, Biomaterials, Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Guimarães
- Portugal
| | - Rui L. Reis
- 3B's Research Group, Biomaterials, Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Guimarães
- Portugal
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