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Arellano H, Nardello-Rataj V, Szunerits S, Boukherroub R, Fameau AL. Saturated long chain fatty acids as possible natural alternative antibacterial agents: Opportunities and challenges. Adv Colloid Interface Sci 2023; 318:102952. [PMID: 37392663 DOI: 10.1016/j.cis.2023.102952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/03/2023]
Abstract
The spread of new strains of antibiotic-resistant pathogenic microorganisms has led to the urgent need to discover and develop new antimicrobial systems. The antibacterial effects of fatty acids have been well-known and recognized since the first experiments of Robert Koch in 1881, and they are now used in diverse fields. Fatty acids can prevent the growth and directly kill bacteria by insertion into their membrane. For that, a sufficient amount of fatty acid molecules has to be solubilized in water to transfer from the aqueous phase to the cell membrane. Due to conflicting results in the literature and lack of standardization methods, it is very difficult to draw clear conclusions on the antibacterial effect of fatty acids. Most of the current studies link fatty acids' effectiveness against bacteria to their chemical structure, notably the alkyl chain length and the presence of double bonds in their chain. Furthermore, the solubility of fatty acids and their critical aggregation concentration is not only related to their structure, but also influenced by medium conditions (pH, temperature, ionic strength, etc.). There is a possibility that the antibacterial activity of saturated long chain fatty acids (LCFA) may be underestimated due to the lack of water solubility and the use of unsuitable methods to assess their antibacterial activity. Thus, enhancing the solubility of these long chain saturated fatty acids is the main goal before examining their antibacterial properties. To increase their water solubility and thereby improve their antibacterial efficacy, novel alternatives may be considered, including the use of organic positively charged counter-ions instead of the conventional sodium and potassium soaps, the formation of catanionic systems, the mixture with co-surfactants, and solubilization in emulsion systems. This review summarizes the latest findings on fatty acids as antibacterial agents, with a focus on long chain saturated fatty acids. Additionally, it highlights the different ways to improve their water solubility, which may be a crucial factor in increasing their antibacterial efficacy. We finish with a discussion on the challenges, strategies and opportunities for the formulation of LCFAs as antibacterial agents.
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Affiliation(s)
- Helena Arellano
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Véronique Nardello-Rataj
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Anne-Laure Fameau
- Univ. Lille, CNRS, INRAe, Centrale Lille, UMET, F-59000, Lille, France.
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Buarque FS, Monteiro e Silva SA, Ribeiro BD. Choline chloride-based deep eutectic solvent as an inhibitor of metalloproteases (collagenase and elastase) in cosmetic formulation. 3 Biotech 2023; 13:219. [PMID: 37265540 PMCID: PMC10229499 DOI: 10.1007/s13205-023-03602-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/29/2023] [Indexed: 06/03/2023] Open
Abstract
Green chemistry and engineering are potential alternatives for achieving higher sustainability and lower generation of hazardous compounds in chemical product design, production, and use. Deep Eutectic Solvents (DES) are characterized as green solvents and have become increasingly attractive due to their characteristic design solvents. In this work, two DES (choline chloride (ChCl)/glycerol and ChCl/Urea), aqueous solutions of the DES-forming components, and green tea extracts obtained with DES were used as anti-ageing active in cosmetic products using in vitro tests to inhibit extracellular matrix metalloproteases (such as collagenase and elastase). Finally, the stability of the formulations with DES as a cosmetic active was also evaluated. The results showed that DES based on ChCl/Urea and ChCl/glycerol exhibited remarkable inhibition values of collagenase (91.1 and 92.7%, respectively) and elastase (49.8 and 45.7%, respectively). However, pure urea displayed better inhibition values (66%) for elastase, possibly due to its direct contribution to intramolecular hydrogen bonds. ChCl/glycerol showed remarkable stability in the average cube diameter values, which may indicate no change in the conformation of the micellar structure of the cosmetic formulation. Moreover, the formulation containing this DES remained stable at room temperature. Given the remarkable results, DES can be applied in cosmetic products for anti-ageing purposes.
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Affiliation(s)
- Filipe Smith Buarque
- Biochemical Engineering Department, School of Chemistry, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 149, Ilha do Fundão, Rio de Janeiro, 21941-909 Brazil
| | - Silas Arandas Monteiro e Silva
- Faculty of Pharmaceutical Sciences, State University of Campinas, Rua Cândido Portinari, Cidade Universitária, São Paulo, 13083871 Brazil
| | - Bernardo Dias Ribeiro
- Biochemical Engineering Department, School of Chemistry, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 149, Ilha do Fundão, Rio de Janeiro, 21941-909 Brazil
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Xu W, Zhang M, Du W, Ling G, Yuan Y, Zhang P. Engineering a naturally-derived wound dressing based on bio-ionic liquid conjugation. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.112055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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Hong M, Wang Q, Wang K, Li J, Qi MH, Ren GB. Transdermal Delivery of Metformin Utilizing Ionic Liquid Technology: Insight Into the Relationship Between Counterion Structures and Properties. Pharm Res 2022; 39:2459-2474. [PMID: 36171345 DOI: 10.1007/s11095-022-03394-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 09/08/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE The purpose of the present study was to explore the feasibility of transdermal delivery of metformin, a commonly used oral antidiabetic drug, by ionic liquid (IL) technology. METHODS Metformin hydrochloride (MetHCl) was first transformed into three kinds of ILs with different counterions. The physicochemical properties of the obtained ILs were characterized in depth. The simulation of stable configuration and calculation of interaction energies were conducted based on density functional theory (DFT). Skin-PAMPA was used to evaluate the intrinsic transdermal permeation properties. The cytotoxicity assay of these ILs was conducted using HaCaT cells to evaluate the toxicity to skin. These metformin ILs were then formulated into transdermal patch, and the transdermal potential was further evaluated using in vitro dissolution test and skin permeation assay. Finally, the pharmacokinetic profiles of these metformin IL-containing patches were determined. RESULTS Among all the three Met ILs, metformin dihexyl sulfosuccinate (MetDH) with proper overall physiochemical and biological properties demonstrated the highest relative bioavailability. Metformin docusate (MetD) with the highest lipophilicity and intrinsic transdermal permeability exhibited the most significant sustained release profile in vivo. Both MetDH and MetD were the promising candidates for further clinical investigations. CONCLUSIONS Overall, the properties of ILs were closely related to the structures of counterion. IL technology provided the opportunities to finely tune the solid-state and biological properties of Metformin and facilitated the successful delivery by transdermal route.
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Affiliation(s)
- Minghuang Hong
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China.
- Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Shanghai, 200237, China.
- Laboratory of Pharmaceutical Crystal Engineering & Technology, No. 130 Meilong Road, Shanghai, 200237, China.
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, East China University of Science and Technology, No. 130 Meilong Road, 200237, Shanghai, China.
| | - Qinglin Wang
- Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Shanghai, 200237, China
- Laboratory of Pharmaceutical Crystal Engineering & Technology, No. 130 Meilong Road, Shanghai, 200237, China
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, East China University of Science and Technology, No. 130 Meilong Road, 200237, Shanghai, China
| | - Kai Wang
- Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Shanghai, 200237, China
- Laboratory of Pharmaceutical Crystal Engineering & Technology, No. 130 Meilong Road, Shanghai, 200237, China
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, East China University of Science and Technology, No. 130 Meilong Road, 200237, Shanghai, China
| | - Jinghui Li
- Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Shanghai, 200237, China
- Laboratory of Pharmaceutical Crystal Engineering & Technology, No. 130 Meilong Road, Shanghai, 200237, China
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, East China University of Science and Technology, No. 130 Meilong Road, 200237, Shanghai, China
| | - Ming-Hui Qi
- Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Shanghai, 200237, China
- Laboratory of Pharmaceutical Crystal Engineering & Technology, No. 130 Meilong Road, Shanghai, 200237, China
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, East China University of Science and Technology, No. 130 Meilong Road, 200237, Shanghai, China
| | - Guo-Bin Ren
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China.
- Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Shanghai, 200237, China.
- Laboratory of Pharmaceutical Crystal Engineering & Technology, No. 130 Meilong Road, Shanghai, 200237, China.
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, East China University of Science and Technology, No. 130 Meilong Road, 200237, Shanghai, China.
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Sandhu M, Paul AT, Proćków J, de la Lastra JMP, Jha PN. PCB-77 biodegradation potential of biosurfactant producing bacterial isolates recovered from contaminated soil. Front Microbiol 2022; 13:952374. [PMID: 36225351 PMCID: PMC9549355 DOI: 10.3389/fmicb.2022.952374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Polychlorinated biphenyls (PCBs) are persistent organic pollutants widely distributed in the environment and possess deleterious health effects. The main objective of the study was to obtain bacterial isolates from PCB-contaminated soil for enhanced biodegradation of PCB-77. Selective enrichment resulted in the isolation of 33 strains of PCB-contaminated soil nearby Bhilai steel plant, Chhattisgarh, India. Based on the prominent growth using biphenyl as the sole carbon source and the confirmation of its degradation by GC-MS/MS analysis, four isolates were selected for further study. The isolates identified by 16S rRNA gene sequencing were Pseudomonas aeruginosa MAPB-2, Pseudomonas plecoglossicida MAPB-6, Brucella anthropi MAPB-9, and Priestia megaterium MAPB-27. The isolate MAPB-9 showed a degradation of 66.15% biphenyl, while MAPB-2, MAPB-6, and MAPB-27 showed a degradation of 62.06, 57.02, and 56.55%, respectively in 48 h. Additionally, the degradation ability of these strains was enhanced with addition of co-metabolite glucose (0.2%) in the culture medium. Addition of glucose showed 100% degradation of biphenyl by MAPB-9, in 48 h, while MAPB-6, MAPB-2, and MAPB-27 showed 97.1, 67.5, and 53.3% degradation, respectively as analyzed by GC-MS/MS. Furthermore, in the presence of inducer, PCB-77 was found to be 59.89, 30.49, 27.19, and 4.43% degraded by MAPB-6, MAPB-9, MAPB-2, and MAPB-27, respectively in 7 d. The production of biosurfactants that aid in biodegradation process were observed in all the isolates. This was confirmed by ATR-FTIR analysis that showed the presence of major functional groups (CH2, CH3, CH, = CH2, C–O–C, C-O) of the biosurfactant. The biosurfactants were further identified by HPTLC and GC-MS/MS analysis. Present study is the first to report PCB-77 degradation potential of Pseudomonas aeruginosa, B. anthropi, Pseudomonas plecoglossicida, and Priestia megaterium. Similarly, this is the first report on Pseudomonas plecoglossicida and Priestia megaterium for PCB biodegradation. Our results suggest that the above isolates can be used for the biodegradation of biphenyl and PCB-77 in PCB-contaminated soil.
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Affiliation(s)
- Monika Sandhu
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
| | - Atish T. Paul
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
| | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - José Manuel Pérez de la Lastra
- Biotecnología de Macromoléculas, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), San Cristóbal de la Laguna, Spain
- José Manuel Pérez de la Lastra,
| | - Prabhat N. Jha
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
- *Correspondence: Prabhat N. Jha,
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Amsel AK, Olsson O, Kümmerer K. Inventory of biodegradation data of ionic liquids. CHEMOSPHERE 2022; 299:134385. [PMID: 35337825 DOI: 10.1016/j.chemosphere.2022.134385] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 06/14/2023]
Abstract
Ionic liquids (ILs) are increasingly of interest for environmentally open applications. Therefore, completely mineralising ILs are highly desirable. We reviewed the current state of knowledge on ILs' environmental biodegradability and identified research needs. Literature data were evaluated as for applied standard methods (e.g. OECD, ISO, APHA) for biodegradation of ILs in order to get an overview on the validity of the test results received and ILs' biodegradability. 109 studies were evaluated. The ILs were categorised based on the cation's core structure. The biodegradation data was classified according to a traffic light system (red: 0-19% degradation, amber: 20-59% degradation, green: ≥ 60% degradation). Not all studies could be assessed for compliance with the test guidelines due to missing test parameters. Moreover, no study discussed all validation criteria as defined by the test guidelines. Consequently, the reliability and quality of the existing biodegradation data is restrained. With regard to the different cations classified for ≥ 60% biodegradability, phosphonium ILs are the least biodegradable, followed by imidazolium ones. The most ILs that were biodegradable are cholinium ILs. The results indicate the need for more and qualitatively better testing according to standard methods including application and reporting of all validation criteria in order to get reliable data that enables the comparison of the test data and a comprehensive understanding of ILs' biodegradability. Moreover, reliable data allows the selection of sufficiently environmentally biodegradable ILs if an introduction into the environment during use cannot be excluded.
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Affiliation(s)
- Ann-Kathrin Amsel
- Institute of Sustainable Chemistry, Leuphana University of Lüneburg, Universitätsallee 1, 21335, Lüneburg, Germany; Research and Education Hub, International Sustainable Chemistry Collaborative Centre (ISC(3)), Leuphana University of Lüneburg, Universitätsallee 1, 21335, Lüneburg, Germany
| | - Oliver Olsson
- Institute of Sustainable Chemistry, Leuphana University of Lüneburg, Universitätsallee 1, 21335, Lüneburg, Germany
| | - Klaus Kümmerer
- Institute of Sustainable Chemistry, Leuphana University of Lüneburg, Universitätsallee 1, 21335, Lüneburg, Germany; Research and Education Hub, International Sustainable Chemistry Collaborative Centre (ISC(3)), Leuphana University of Lüneburg, Universitätsallee 1, 21335, Lüneburg, Germany.
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Müller E, Drechsler M, Klein R, Heilmann J, Estrine B, Kunz W. Physical-Chemical and Toxicological Properties of Osmolyte-Based Cationic Surfactants and Spontaneously Formed Low-Toxic Catanionic Vesicles out of them. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Jain M, Kumar S, Aswal VK, Al-Ghamdi AA, Kumar Kailasa S, Malek NI. Amino Acid Induced Self-Assembled Vesicles of Choline Oleate: pH responsive Nano-carriers for Targeted and Localized Delivery of Doxorubicin for Breast Cancer. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Silicon-hybrid ionic liquid surfactant derived from natural oleic acid: Synthesis and properties of an aqueous solution. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Beil S, Markiewicz M, Pereira CS, Stepnowski P, Thöming J, Stolte S. Toward the Proactive Design of Sustainable Chemicals: Ionic Liquids as a Prime Example. Chem Rev 2021; 121:13132-13173. [PMID: 34523909 DOI: 10.1021/acs.chemrev.0c01265] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The tailorable and often unique properties of ionic liquids (ILs) drive their implementation into a broad variety of seminal technologies. The modular design of ILs allows in this context a proactive selection of structures that favor environmental sustainability─ideally without compromising their technological performance. To achieve this objective, the whole life cycle must be taken into account and various aspects considered simultaneously. In this review, we discuss how the structural design of ILs affects their environmental impacts throughout all stages of their life cycles and scrutinize the available data in order to point out knowledge gaps that need further research activities. The design of more sustainable ILs starts with the selection of the most beneficial precursors and synthesis routes, takes their technical properties and application specific performance into due account, and considers its environmental fate particularly in terms of their (eco)toxicity, biotic and abiotic degradability, mobility, and bioaccumulation potential. Special emphasis is placed on reported structure-activity relationships and suggested mechanisms on a molecular level that might rationalize the empirically found design criteria.
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Affiliation(s)
- Stephan Beil
- Institute of Water Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Marta Markiewicz
- Institute of Water Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Cristina Silva Pereira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Av. da República, 2780-157 Oeiras, Portugal
| | - Piotr Stepnowski
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, ul. Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Jorg Thöming
- Chemical Process Engineering, University of Bremen, Leobener Straße 6, 28359 Bremen, Germany
| | - Stefan Stolte
- Institute of Water Chemistry, TU Dresden, 01062 Dresden, Germany
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11
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Yang Z, He S, Fang Y, Zhang Y. Viscoelastic Fluid Formed by Ultralong-Chain Erucic Acid-Base Ionic Liquid Surfactant Responds to Acid/Alkaline, CO 2, and Light. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3094-3102. [PMID: 33683107 DOI: 10.1021/acs.jafc.0c07466] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As a leftover of grease processing, the efficient utilization of erucic acid is still a challenge. An alternative strategy is to develop erucic acid-derived surfactants. However, erucic acid-based ionic liquid surfactants were barely involved. Here, a novel ionic liquid surfactant, benzyltrimethylammonium erucate (ErBTA), was developed by a simple neutralization reaction, and its aggregations in the diluted and concentrated solution were systematically studied by surface tension, conductivity, rheology, and cryo-TEM techniques. The results showed that ErBTA has a very low metaling point (-7.03 °C) and possesses excellent water solubility (Krafft temperature <4 °C). ErBTA alone starts to form micelles at a very low concentration (0.028 mmol/L) and then to form worm-based viscoelastic fluid at 4.07 mmol/L without any additives, exhibiting excellent self-assembly ability and thickening ability. This viscoelastic fluid formed by ErBTA can simultaneously respond to three stimuli: common acid/alkaline, CO2 gas, and light, accompanied by an interesting gel-sol conversion, reflecting microstructure transition from wormlike micelles to spherical micelles. Although in essence CO2 and light also act as pH regulators in the current system, they provide more sophisticated approaches to tune pH. Such a viscoelastic fluid with the characteristics of easy availability, renewability of raw materials, the simplicity of fabrication, good water-solubility, and excellent thickening ability may be an attractive candidate for clean fracturing in oil/gas recovery and fluid drag reduction.
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Affiliation(s)
- Zhe Yang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Materials Engineering, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, P. R. China
| | - Shuai He
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu 610041, P. R. China
| | - Yinjun Fang
- Zanyu Technology Group Company Ltd., Hangzhou 310009, P. R. China
| | - Yongmin Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Materials Engineering, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, P. R. China
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12
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Saadat M, Jafari S, Zakeri-Milani P, Shahbazi-Mojarrad J, Valizadeh H. Stearoylcholine and oleoylcholine: Synthesis, physico-chemical characterization, nanoparticle formation, and toxicity studies. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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13
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Toledo Hijo AAC, Barros HDFQ, Maximo GJ, Cazarin CBB, da Costa LBE, Pereira JFB, Maróstica Junior MR, Meirelles AJA. Subacute toxicity assessment of biobased ionic liquids in rats. Food Res Int 2020; 134:109125. [PMID: 32517932 DOI: 10.1016/j.foodres.2020.109125] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 01/21/2020] [Accepted: 02/23/2020] [Indexed: 12/18/2022]
Abstract
Ionic liquids (ILs) derived from compounds obtained from natural sources, such as fatty acids (FAs) have attracted the interest of the scientific and industrial communities because of their sustainable appeal and possible low toxic effects or nontoxicity. These aspects open new perspective of applications in other fields, which demands a better comprehension of their toxicity. This work evaluated the subacute toxicity of bis(2-hydroxyethyl)ammonium carboxylates in Wistar rats, considering the alkyl chain length of FAs (capric and oleic acids), and the concentration (0.16%, 1.6% or 3.2%, wIL/wOil) of ILs added in diets. The blood serum of the rats was evaluated in relation to total cholesterol, triglycerides, aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) and γ-glutamyl transferase. Lipid peroxidation was determined in plasma, liver and kidney tissues by determining the level of thiobarbituric acid reactive substances. Histological analyses of the liver and kidney tissues were performed in order to evaluate morphological changes. No signal of toxicity was observed according to lipid peroxidation. Triglycerides increased with the increasing of the concentration and alkyl chain length of the IL, but no difference in serum level of lipid peroxidation was observed. This behavior may be attributed to the amphiphilic nature of FAs based ILs, which might facilitate lipid digestion. However, more studies are necessary in order to understand such behavior. Therefore, the synthesis of ILs from FAs, has been evaluated as a strategy to produce compounds with low or without toxicity for the agro-food, pharmaceutical or cosmetic industries.
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Affiliation(s)
- Ariel A C Toledo Hijo
- Laboratory of Extraction, Applied Thermodynamics and Equilibrium (EXTRAE), School of Food Engineering, University of Campinas, R. Monteiro Lobato 80, 13083-862 Campinas, São Paulo, Brazil
| | - Helena D F Q Barros
- Laboratory of Biological Assays (LEB), School of Food Engineering, University of Campinas, R. Monteiro Lobato 80, 13083-862 Campinas, São Paulo, Brazil
| | - Guilherme J Maximo
- Laboratory of Extraction, Applied Thermodynamics and Equilibrium (EXTRAE), School of Food Engineering, University of Campinas, R. Monteiro Lobato 80, 13083-862 Campinas, São Paulo, Brazil
| | - Cinthia B B Cazarin
- Laboratory of Biological Assays (LEB), School of Food Engineering, University of Campinas, R. Monteiro Lobato 80, 13083-862 Campinas, São Paulo, Brazil
| | - Larissa B E da Costa
- School of Medical Sciences, University of Campinas, R. Tessália Vieira de Camargo, 126, 13083-887 Campinas, São Paulo, Brazil
| | - Jorge F B Pereira
- School of Pharmaceutical Sciences, Universidade Estadual Paulista, 14800-903, Araraquara, São Paulo, Brazil
| | - Mario R Maróstica Junior
- Laboratory of Biological Assays (LEB), School of Food Engineering, University of Campinas, R. Monteiro Lobato 80, 13083-862 Campinas, São Paulo, Brazil
| | - Antonio J A Meirelles
- Laboratory of Extraction, Applied Thermodynamics and Equilibrium (EXTRAE), School of Food Engineering, University of Campinas, R. Monteiro Lobato 80, 13083-862 Campinas, São Paulo, Brazil.
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Influence of Carboxylate Anions on Phase Behavior of Choline Ionic Liquid Mixtures. Molecules 2020; 25:molecules25071691. [PMID: 32272688 PMCID: PMC7180831 DOI: 10.3390/molecules25071691] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 03/30/2020] [Accepted: 04/02/2020] [Indexed: 11/17/2022] Open
Abstract
Mixing ionic liquids is a suitable strategy to tailor properties, e.g., to reduce melting points. The present study aims to widen the application range of low-toxic choline-based ionic liquids by studying eight binary phase diagrams of six different choline carboxylates. Five of them show eutectic points with melting points dropping by 13 to 45 °C. The eutectic mixtures of choline acetate and choline 2-methylbutarate were found to melt at 45 °C, which represents a remarkable melting point depression compared to the pure compounds with melting points of 81 (choline acetate) and 90 °C (choline 2-methylbutarate), respectively. Besides melting points, the thermal stabilities of the choline salt mixtures were investigated to define the thermal operation range for potential practical applications of these mixtures. Typical decomposition temperatures were found between 165 and 207 °C, with choline lactate exhibiting the highest thermal stability.
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Synthesis and characterization of choline–fatty-acid-based ionic liquids: A new biocompatible surfactant. J Colloid Interface Sci 2019; 551:72-80. [DOI: 10.1016/j.jcis.2019.04.095] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 11/23/2022]
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16
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Shah MUH, Sivapragasam M, Moniruzzaman M, Talukder MMR, Yusup SB, Goto M. Aggregation behavior and antimicrobial activity of a micellar system of binary ionic liquids. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.101] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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17
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Müller E, Zahnweh L, Estrine B, Zech O, Allolio C, Heilmann J, Kunz W. Oligoether carboxylate counterions: An innovative way towards surfactant ionic liquids. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Arnould A, Cousin F, Chabas L, Fameau AL. Impact of the molar ratio and the nature of the counter-ion on the self-assembly of myristic acid. J Colloid Interface Sci 2018; 510:133-141. [DOI: 10.1016/j.jcis.2017.09.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/13/2017] [Accepted: 09/14/2017] [Indexed: 12/01/2022]
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19
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Environmental Concerns Regarding Ionic Liquids in Biotechnological Applications. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2018; 168:241-328. [DOI: 10.1007/10_2018_79] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Panda S, Kundu K, Basaiahgari A, Singh AP, Senapati S, Gardas RL. Aggregation behaviour of biocompatible choline carboxylate ionic liquids and their interactions with biomolecules through experimental and theoretical investigations. NEW J CHEM 2018. [DOI: 10.1039/c8nj00336j] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The self-assembly of long-chain choline carboxylates accompanied by their interaction with BSA protein were investigated with focus on environmental sustainability.
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Affiliation(s)
- Somenath Panda
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Kaushik Kundu
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Anusha Basaiahgari
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Akhil Pratap Singh
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
- Department of Biotechnology
| | - Sanjib Senapati
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Ramesh L. Gardas
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
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21
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Chiappisi L. Polyoxyethylene alkyl ether carboxylic acids: An overview of a neglected class of surfactants with multiresponsive properties. Adv Colloid Interface Sci 2017; 250:79-94. [PMID: 29056232 DOI: 10.1016/j.cis.2017.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/07/2017] [Accepted: 10/10/2017] [Indexed: 12/14/2022]
Abstract
In this work, an overview on aqueous solutions of polyoxyethylene alkyl ether carboxylic acids is given. Unique properties arise from the combination of the nonionic, temperature-responsive polyoxyethylene block with the weakly ionic, pH-responsive carboxylic acid termination in a single surfactant headgroup. Accordingly, this class of surfactant finds broad application across very different sectors. Despite their large use on an industrial and a technical scale, the literature lacks a systematic and detailed characterization of their physico-chemical properties which is provided herein. In addition, a comprehensive overview is given of their self-assembly and interfacial behavior, of their use as colloidal building blocks and for large-scale applications.
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Affiliation(s)
- Leonardo Chiappisi
- Technische Universität Berlin, Stranski Laboratorium für Physikalische Chemie und Theoretische Chemie, Institut für Chemie, Straße des 17. Juni 124, Sekr. TC7, D-10623 Berlin, Germany; Institut Max von Laue - Paul Langevin, Large Scale Structures Group, 71 avenue des Martyrs, Grenoble Cedex 9 38042, France.
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22
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Engineering Biodegradable and Biocompatible Bio-ionic Liquid Conjugated Hydrogels with Tunable Conductivity and Mechanical Properties. Sci Rep 2017; 7:4345. [PMID: 28659629 PMCID: PMC5489531 DOI: 10.1038/s41598-017-04280-w] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/03/2017] [Indexed: 12/20/2022] Open
Abstract
Conventional methods to engineer electroconductive hydrogels (ECHs) through the incorporation of conductive nanomaterials and polymers exhibit major technical limitations. These are mainly associated with the cytotoxicity, as well as poor solubility, processability, and biodegradability of their components. Here, we describe the engineering of a new class of ECHs through the functionalization of non-conductive polymers with a conductive choline-based bio-ionic liquid (Bio-IL). Bio-IL conjugated hydrogels exhibited a wide range of highly tunable physical properties, remarkable in vitro and in vivo biocompatibility, and high electrical conductivity without the need for additional conductive components. The engineered hydrogels could support the growth and function of primary cardiomyocytes in both two dimentinal (2D) and three dimensional (3D) cultures in vitro. Furthermore, they were shown to be efficiently biodegraded and possess low immunogenicity when implanted subcutaneously in rats. Taken together, our results suggest that Bio-IL conjugated hydrogels could be implemented and readily tailored to different biomedical and tissue engineering applications.
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23
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Ríos F, Lechuga M, Fernández-Serrano M, Fernández-Arteaga A. Aerobic biodegradation of amphoteric amine-oxide-based surfactants: Effect of molecular structure, initial surfactant concentration and pH. CHEMOSPHERE 2017; 171:324-331. [PMID: 28027477 DOI: 10.1016/j.chemosphere.2016.12.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 12/08/2016] [Accepted: 12/15/2016] [Indexed: 06/06/2023]
Abstract
The present study was designed to provide information regarding the effect of the molecular structure of amphoteric amine-oxide-based surfactants and the initial surfactant concentration on their ultimate biodegradation. Moreover, given this parameter's pH-dependence, the effect of pH was also investigated. Three amine-oxide-based surfactants with structural differences in their hydrophobic alkyl chain were tested: Lauramine oxide (AO-R12), Myristamine oxide (AO-R14) and Cocamidopropylamine oxide (AO-Cocoamido). We studied the ultimate biodegradation using the Modified OECD Screening Test at initial surfactant concentrations ranged from 5 to 75 mg L-1 and at pH levels from 5 to 7.4. The results demonstrate that at pH 7.4, amine-oxide-based surfactants are readily biodegradable. In this study, we concluded that ω-oxidation can be assumed to be the main biodegradation pathway of amine-oxides and that differences in the biodegradability between them can be explained by the presence of an amide group in the alkyl chain of AO-Cocoamido; the CN fission of the amide group slows down their mineralization process. In addition, the increase in the concentration of the surfactant from 5 to 75 mg L-1 resulted in an increase in the final biodegradation of AO-R12 and AO-R14. However, in the case of AO-Cocoamido, a clear relationship between the concentration and biodegradation cannot be stated. Conversely, the biodegradability of AO-R12 and AO-R14 was considerably lower in an acid condition than at a pH of 7.4, whereas AO-Cocoamido reached similar percentages in acid conditions and at a neutral pH. However, microorganisms required more time to acclimate.
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Affiliation(s)
- Francisco Ríos
- Department of Chemical Engineering, Faculty of Science, University of Granada, Campus Fuentenueva s/n, 18071, Granada, Spain.
| | - Manuela Lechuga
- Department of Chemical Engineering, Faculty of Science, University of Granada, Campus Fuentenueva s/n, 18071, Granada, Spain
| | - Mercedes Fernández-Serrano
- Department of Chemical Engineering, Faculty of Science, University of Granada, Campus Fuentenueva s/n, 18071, Granada, Spain
| | - Alejandro Fernández-Arteaga
- Department of Chemical Engineering, Faculty of Science, University of Granada, Campus Fuentenueva s/n, 18071, Granada, Spain
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24
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Bhadani A, Iwabata K, Sakai K, Koura S, Sakai H, Abe M. Sustainable oleic and stearic acid based biodegradable surfactants. RSC Adv 2017. [DOI: 10.1039/c6ra27036k] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Renewable ester functionalized fatty acid based imidazolium surfactant.
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Affiliation(s)
- Avinash Bhadani
- Department of Pure and Applied Chemistry and Research Institute for Science and Technology
- Tokyo University of Science
- Noda
- Japan
| | - Kazuki Iwabata
- Department of Pure and Applied Chemistry and Research Institute for Science and Technology
- Tokyo University of Science
- Noda
- Japan
| | - Kenichi Sakai
- Department of Pure and Applied Chemistry and Research Institute for Science and Technology
- Tokyo University of Science
- Noda
- Japan
| | - Setsuko Koura
- Department of Applied Chemistry
- Chiba Institute of Technology
- Narashino
- Japan
| | - Hideki Sakai
- Department of Pure and Applied Chemistry and Research Institute for Science and Technology
- Tokyo University of Science
- Noda
- Japan
| | - Masahiko Abe
- Department of Pure and Applied Chemistry and Research Institute for Science and Technology
- Tokyo University of Science
- Noda
- Japan
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25
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Wolfrum S, Marcus J, Touraud D, Kunz W. A renaissance of soaps? - How to make clear and stable solutions at neutral pH and room temperature. Adv Colloid Interface Sci 2016; 236:28-42. [PMID: 27476328 DOI: 10.1016/j.cis.2016.07.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 07/14/2016] [Accepted: 07/14/2016] [Indexed: 01/06/2023]
Abstract
Soaps are the oldest and perhaps most natural surfactants. However, they lost much of their importance since "technical surfactants", usually based on sulfates or sulfonates, have been developed over the last fifty years. Indeed, soaps are pH- and salt-sensitive and they are irritant, especially to the eyes. In food emulsions, although authorized, they have a bad taste, and long-chain saturated soaps have a high Krafft temperature. We believe that most or perhaps all of these problems can be solved with modern formulation approaches. We start this paper with a short overview of our present knowledge of soaps and soap formulations. Then we focus on the problem of the lacking soap solubility at neutral pH values. For example, it is well known that with the food emulsifier sodium oleate (NaOl), clear and stable aqueous solutions can only be obtained at pH values higher than 10. A decrease in the pH value leads to turbid and unstable solutions. This effect is not compatible with the formulation of aqueous stable and drinkable formulations with neutral or even acidic pH values. However, the pH value/phase behavior of aqueous soap solutions can be altered by the addition of other surfactants. Such a surfactant can be Rebaudioside A (RebA), a steviol glycoside from the plant Stevia rebaudiana which is used as a natural food sweetener. In a recent paper, we showed the influence of RebA on the apKa value of sodium oleate in a beverage microemulsion and on its clearing temperature. In the present paper, we report on the effect of the edible bio-surfactant RebA, on the macroscopic and microscopic phase behavior of simple aqueous sodium oleate solutions at varying pH values. The macroscopic phase behavior is investigated by visual observation and turbidity measurements. The microscopic phase behavior is analyzed by acid-base titration curves, phase-contrast and electron microscopy. It turned out that even at neutral pH, aqueous NaOl/RebA solutions can be completely clear and stable for more than 50days at room temperature. This is for the first time that a long chain soap could be really solubilized in water at neutral pH at room temperature. At last, these findings were applied to prepare stable, highly translucent and drinkable aqueous solutions of omega-3-fatty acids at a pH value of 7.5.
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26
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Shah A, Shahzad S, Munir A, Nadagouda MN, Khan GS, Shams DF, Dionysiou DD, Rana UA. Micelles as Soil and Water Decontamination Agents. Chem Rev 2016; 116:6042-74. [PMID: 27136750 DOI: 10.1021/acs.chemrev.6b00132] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Contaminated soil and water pose a serious threat to human health and ecosystem. For the treatment of industrial effluents or minimizing their detrimental effects, preventive and remedial approaches must be adopted prior to the occurrence of any severe environmental, health, or safety hazard. Conventional treatment methods of wastewater are insufficient, complicated, and expensive. Therefore, a method that could use environmentally friendly surfactants for the simultaneous removal of both organic and inorganic contaminants from wastewater is deemed a smart approach. Surfactants containing potential donor ligands can coordinate with metal ions, and thus such compounds can be used for the removal of toxic metals and organometallic compounds from aqueous systems. Surfactants form host-guest complexes with the hydrophobic contaminants of water and soil by a mechanism involving the encapsulation of hydrophobes into the self-assembled aggregates (micelles) of surfactants. However, because undefined amounts of surfactants may be released into the aqueous systems, attention must be paid to their own environmental risks as well. Moreover, surfactant remediation methods must be carefully analyzed in the laboratory before field implementation. The use of biosurfactants is the best choice for the removal of water toxins as such surfactants are associated with the characteristics of biodegradability, versatility, recovery, and reuse. This Review is focused on the currently employed surfactant-based soil and wastewater treatment technologies owing to their critical role in the implementation of certain solutions for controlling pollution level, which is necessary to protect human health and ensure the quality standard of the aquatic environment.
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Affiliation(s)
- Afzal Shah
- Department of Chemistry, Quaid-i-Azam University , Islamabad 45320, Pakistan
| | - Suniya Shahzad
- Department of Chemistry, Quaid-i-Azam University , Islamabad 45320, Pakistan
| | - Azeema Munir
- Department of Chemistry, Quaid-i-Azam University , Islamabad 45320, Pakistan
| | - Mallikarjuna N Nadagouda
- Department of Mechanical and Materials Engineering, Wright State University , Dayton, Ohio 45324, United States
| | - Gul Shahzada Khan
- Department of Chemistry, Shaheed Benazir Bhutto University , Sheringal, Dir (Upper), 18000 Khyber Pakhtunkhwa, Pakistan
| | - Dilawar Farhan Shams
- Department of Environmental Sciences, Abdul Wali Khan University Mardan , 23200 Khyber Pakhtunkhwa, Pakistan
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Biomedical, Chemical and Environmental Engineering, University of Cincinnati , Cincinnati, Ohio 45221-0012, United States
| | - Usman Ali Rana
- Sustainable Energy Technologies Center, College of Engineering, King Saud University , PO Box 800, Riyadh 11421, Saudi Arabia
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27
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Arnould A, Perez AA, Gaillard C, Douliez JP, Cousin F, Santiago LG, Zemb T, Anton M, Fameau AL. Self-assembly of myristic acid in the presence of choline hydroxide: Effect of molar ratio and temperature. J Colloid Interface Sci 2015; 445:285-293. [DOI: 10.1016/j.jcis.2015.01.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 01/05/2015] [Accepted: 01/06/2015] [Indexed: 10/24/2022]
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28
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Al-Mohammed NN, Duali Hussen RS, Ali TH, Alias Y, Abdullah Z. Tetrakis-imidazolium and benzimidazolium ionic liquids: a new class of biodegradable surfactants. RSC Adv 2015. [DOI: 10.1039/c4ra16811a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel tetrakis-imidazolium and benzimidazolium ILs containing tetra-ester groups with incorporated quadruple side chains were synthesized successfully as degradable surfactants of expected medical and industrial applications.
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Affiliation(s)
- Nassir N. Al-Mohammed
- Chemistry Department
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | | | - Tammar Hussein Ali
- Chemistry Department
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - Yatimah Alias
- Chemistry Department
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - Zanariah Abdullah
- Chemistry Department
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
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29
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Fameau AL, Arnould A, Lehmann M, von Klitzing R. Photoresponsive self-assemblies based on fatty acids. Chem Commun (Camb) 2015; 51:2907-10. [DOI: 10.1039/c4cc09842k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoresponsive surfactant system based on fatty acids has been developed by the introduction in aqueous solution of a photoacid generator (PAG).
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Affiliation(s)
- A.-L. Fameau
- UR1268 Biopolymères Interactions Assemblages Institut National de la Recherche Agronomique
- rue de la Géraudière
- F-44316 Nantes
- France
| | - A. Arnould
- UR1268 Biopolymères Interactions Assemblages Institut National de la Recherche Agronomique
- rue de la Géraudière
- F-44316 Nantes
- France
| | - M. Lehmann
- Stranski-Laboratorium für Physikalische und Theoretische Chemie
- Institut für Chemie
- TU Berlin
- 10623 Berlin
- Germany
| | - R. von Klitzing
- Stranski-Laboratorium für Physikalische und Theoretische Chemie
- Institut für Chemie
- TU Berlin
- 10623 Berlin
- Germany
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30
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Fameau AL, Arnould A, Saint-Jalmes A. Responsive self-assemblies based on fatty acids. Curr Opin Colloid Interface Sci 2014. [DOI: 10.1016/j.cocis.2014.08.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Tolentino A, Alla A, Martínez de Ilarduya A, Font-Bardía M, León S, Muñoz-Guerra S. Thermal behavior of long-chain alkanoylcholine soaps. RSC Adv 2014. [DOI: 10.1039/c3ra47049k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Long-chain alkanoylcholines prepared from fatty acids adopt a diversity of thermally interconvertible phases made of a bilayered structure with alkanoyl chains crystallized or interdigitated in a more or less extent depending on temperature and alkanoyl chain length.
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Affiliation(s)
- Ainhoa Tolentino
- Departament d'Enginyeria Química
- Universitat Politècnica de Catalunya
- ETSEIB
- Barcelona 08028, Spain
| | - Abdelilah Alla
- Departament d'Enginyeria Química
- Universitat Politècnica de Catalunya
- ETSEIB
- Barcelona 08028, Spain
| | | | - Mercè Font-Bardía
- Centre Cientific i Tecnològic (CCiTUB)
- Universitat de Barcelona
- Barcelona 08028, Spain
| | - Salvador León
- Departmento de Ingeniería Química
- Universidad Politécnica de Madrid
- ETSIIM
- Madrid 28006, Spain
| | - Sebastián Muñoz-Guerra
- Departament d'Enginyeria Química
- Universitat Politècnica de Catalunya
- ETSEIB
- Barcelona 08028, Spain
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