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Pontoni D, DiMichiel M, Murphy BM, Honkimäki V, Deutsch M. Ordering of ionic liquids at a charged sapphire interface: Evolution with cationic chain length. J Colloid Interface Sci 2024; 661:33-45. [PMID: 38295701 DOI: 10.1016/j.jcis.2024.01.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 02/27/2024]
Abstract
HYPOTHESIS Room Temperature Ionic Liquids (RTILs) bulk's molecular layering dominates their structure also at the RTIL/sapphire interface, increasing the layer spacing with the cationic alkyl chain length n. However, the negatively-charged sapphire surface compresses the layers, increases the layering range, and affects the intra-layer structure in yet unknown ways. EXPERIMENTS X-ray reflectivity (XR) off the RTIL/sapphire interface, for a broad homologous RTIL series 1-alkyl-3-methylimidazolium bis(trifluoromethansulfonyl)imide, hitherto unavailable for any RTIL. FINDINGS RTIL layers against the sapphire, exhibit two spacings: da and db. da is n-varying, follows the behavior of the bulk spacing but exhibits a downshift, thus showing significant layer compression, and over twofold polar slab thinning. The latter suggests exclusion of anions from the interfacial region due to the negative sapphire charging by x-ray-released electrons. The layering range is larger than the bulk's. db is short and near n-independent, suggesting polar moieties' layering, the coexistence mode of which with the da-spaced layering is unclear. Comparing the present layering with the bulk's and the RTIL/air interface's provides insight into the Coulomb and dispersion interaction balance dominating the RTIL's structure and the impact thereon of the presence of a charged solid interface.
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Affiliation(s)
- Diego Pontoni
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Marco DiMichiel
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Bridget M Murphy
- Institute of Experimental and Applied Physics, Kiel University, Kiel D-24098, Germany; Ruprecht-Haensel Laboratory, Kiel University, Kiel D-24118, Germany
| | - Veijo Honkimäki
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Moshe Deutsch
- Physics Dept. & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, Israel.
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2
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Aggrawal R, Halder S, Dyagala S, Saha SK. Role of Dual Nature of Ionic Liquid in Solvation Dynamics and Rotational Diffusion in Mixed Micelles: A Time‐Resolved Fluorescence and Fluorescence Anisotropy Study. ChemistrySelect 2023. [DOI: 10.1002/slct.202204360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Affiliation(s)
- Rishika Aggrawal
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
| | - Sayantan Halder
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
| | - Shalini Dyagala
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
| | - Subit Kumar Saha
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
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3
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Influence of urea/glucose on the mixed micellization behavior of amitriptyline hydrochloride and 1-hexadecyl-3-methylimidazolium chloride (ionic liquid) mixtures: an experimental and theoretical investigation. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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4
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Ukani H, Pratyush, Kumar S, Aswal VK, Al‐Ghamdi AA, Malek NI. Cholesterol Mediated Stable Vesicles: A Nano Drug Delivery Vehicle for Anti‐cancer Drugs Curcumin and 5‐Fluorourecil. ChemistrySelect 2022. [DOI: 10.1002/slct.202201613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hiral Ukani
- Ionic Liquids Research Laboratory Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat 395007 Gujarat India
| | - Pratyush
- Ionic Liquids Research Laboratory Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat 395007 Gujarat India
| | - Sugam Kumar
- Solid State Physics Division Bhabha Atomic Research Centre, Trombay Mumbai 400085 India
| | - Vinod K Aswal
- Solid State Physics Division Bhabha Atomic Research Centre, Trombay Mumbai 400085 India
| | - Azza A. Al‐Ghamdi
- Department of Chemistry College of Science Imam Abdul Rahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
- Basic & Applied Scientific Research Center (BASRC) Water Treatment Unit Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
| | - Naved I. Malek
- Ionic Liquids Research Laboratory Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat 395007 Gujarat India
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5
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Kaur G, Kumar H, Singla M, Singh H. Influence of an antibiotic drug neomycin sulphate on mixed micellization behavior of imidazolium based surface-active ionic liquids in aqueous media. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Vavra S, Martinelli A. Surface active alkyl-imidazolium ionic liquids studied as templates to form vertically oriented pores in silica thin films. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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8
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Kaur G, Kumar H, Singla M. Mixed micellization behavior of 1-dodecyl-3-methylimidazolium chloride [C12mim][Cl] and benzyldimethyl-n-hexadecylammonium chloride (16-BAC) under the influence of gelatin in aqueous media. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118479] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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9
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Banerjee S, Bardhan S, Senapati S. Structural Transitions at the Water/Oil Interface by Ionic-Liquid-like Surfactant, 1-Butyl-3-methylimidazolium Dioctyl Sulfosuccinate: Measurements and Mechanism. J Phys Chem B 2022; 126:2014-2026. [PMID: 35213168 DOI: 10.1021/acs.jpcb.1c08602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Reverse micelle (RM) aggregates have a wide range of applications in various areas of science and technology. A continuous demand exists to replace interfacial surfactant molecules with various nonconventional amphiphiles. Ionic liquid (IL)-like surfactants (IL-surf's) constitute a class of such molecules that are being researched extensively. Here, we have formulated several water/IL-surf/oil microemulsions by optimizing the core droplet size with varying oil phases. The best composition of water/[BMIM][AOT]/IPM ([BMIM][AOT]: 1-butyl-3-methylimidazolium dioctyl sulfosuccinate; IPM: isopropyl myristate) was then analyzed in detail through experimental and computer simulations. Our results from DLS measurements suggest a structural transition from spherical aggregates in the parent water/[Na][AOT]/IPM solution to cylindrical droplets in the IL-surf-based system. The Raman and ATR-FTIR spectral analysis suggest a variation in the microstructure of the water/oil interface due to the differential interaction of the counterions with AOT headgroups and water. Molecular dynamics simulation results provided the direct image of the interface showing a structured versus uneven water/oil interface in [Na][AOT] versus [BMIM][AOT] RMs, where the larger [BMIM] cations weakly bind with the AOT headgroups due to their low charge density. Finally, an application of this IL-surf-based formulation was tested by carrying out a Heck cross-coupling reaction that showed significantly higher yield under milder reaction conditions.
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Affiliation(s)
- Shankha Banerjee
- Department of Biotechnology and BJM School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Soumik Bardhan
- Department of Biotechnology and BJM School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Sanjib Senapati
- Department of Biotechnology and BJM School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
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10
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Han Q, Brown SJ, Drummond CJ, Greaves TL. Protein aggregation and crystallization with ionic liquids: Insights into the influence of solvent properties. J Colloid Interface Sci 2022; 608:1173-1190. [PMID: 34735853 DOI: 10.1016/j.jcis.2021.10.087] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 12/13/2022]
Abstract
Ionic liquids (ILs) have been used in solvents for proteins in many applications, including biotechnology, pharmaceutics, and medicine due to their tunable physicochemical and biological properties. Protein aggregation is often undesirable, and predominantly occurs during bioprocesses, while the aggregation process can be reversible or irreversible and the aggregates formed can be native/non-native and soluble/insoluble. Recent studies have clearly identified key properties of ILs and IL-water mixtures related to protein performance, suggesting the use of the tailorable properties of ILs to inhibit protein aggregation, to promote protein crystallization, and to control protein aggregation pathways. This review discusses the critical properties of IL and IL-water mixtures and presents the latest understanding of the protein aggregation pathways and the development of IL systems that affect or control the protein aggregation process. Through this feature article, we hope to inspire further advances in understanding and new approaches to controlling protein behavior to optimize bioprocesses.
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Affiliation(s)
- Qi Han
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Stuart J Brown
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Calum J Drummond
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Tamar L Greaves
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
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11
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Solanki SH, Patil SR. Phase studies of ethyl ammonium nitrate (EAN)/sugar surfactant microemulsions: effect of chain length of alkanes and length of the hydrophobic chain of the non-ionic surfactant. TENSIDE SURFACT DET 2022. [DOI: 10.1515/tsd-2021-2374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Microemulsions were formulated with the ionic liquid ethylammonium nitrate (EAN) used instead of water as the polar phase, hydrocarbon solvents (n-alkanes) and sugar-based non-ionic surfactants, and their phase behaviour and microstructure were investigated. The sugar-based non-ionic surfactants used are non-toxic, biodegradable and environmentally friendly. Due to these properties, their use in microemulsion systems is a clear alternative to the conventionally used non-ionic surfactants from the class of alkyl polyoxyethylene ethers (C
i
E
j
). The influence of n-alkanes with different chain lengths and of sugar-based nonionic surfactants with hydrophobic chains of different lengths on the microemulsion system was also investigated. The results obtained for the microemulsions with EAN described here are similar to those obtained for microemulsion systems formulated with water as the polar solvent. Liquid crystalline (LC) phases were observed in microemulsion systems with sugar-based nonionic surfactants having longer hydrocarbon chains, at lower temperatures and higher surfactant mass fraction.
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Affiliation(s)
| | - Sandeep R. Patil
- School of Engineering and Technology, Navrachana University , Vadodara 391410 , India
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12
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Tran L, Rush K, Marzette J, Edmonds-Andrews G, Bennett T, Abdulahad A, Riley KE, Dutta S. Striking temperature-dependent molecular reorganization at the C-2 position of [EMIM][BF4]. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Lu Z, Liu X, He M, Long J, Liu J. Dynamic motions and architectural changes in DNA supramolecular aggregates visualized via transmission electron microscopy without liquid cells. NANOSCALE 2021; 13:15928-15936. [PMID: 34523635 DOI: 10.1039/d1nr04133a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the last decade, breakthroughs in liquid-phase transmission electron microscopy (TEM) have enabled in situ visualization of the motion dynamics of nanostructures in liquid media with unprecedented detail. However, it remains a significant challenge to perform liquid-phase TEM due to the intricate preparation procedure of liquid cells to keep liquid from evaporating under ultrahigh vacuum conditions in TEM columns. In the present study, the nonvolatility and remarkable solvation property of ionic liquids (ILs) is exploited to image the dynamic processes of DNA supramolecular aggregates and Au nanoparticle (NP) aggregates encompassing Brownian motions, interactions among individual nanoobjects and changes in architecture at nanometer resolution. Significant differences in motion behaviors are observed between DNA supramolecular aggregates and Au NP aggregates. Moreover, the temperature and dose dependence of dynamic motions are also investigated. The findings provide insights into the dynamics of DNA supramolecular aggregates and Au NP aggregates in ILs and present an easily accessible approach for probing the dynamic processes of biomacromolecular and other soft matter aggregates with various kinds of ILs at the nanoscale level.
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Affiliation(s)
- Zhuoyang Lu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
| | - Xiangyang Liu
- The Key Laboratory of Thermal Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Maogang He
- The Key Laboratory of Thermal Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Jiangang Long
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
| | - Jiankang Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
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14
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Song Y, Wei Q, Lu T, Chen J, Chen W, Qi W, Liu S, Qi Z, Zhou Y. Insight into the inhibitory mechanism of soluble ionic liquids on the transport of TiO 2 nanoparticles in saturated porous media: Roles of alkyl chain lengths and counteranion types. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126367. [PMID: 34130158 DOI: 10.1016/j.jhazmat.2021.126367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/25/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
Column experiments were carried out to investigate the transport of TiO2 nanoparticles (nTiO2) in water-saturated porous media in the presence of various imidazolium-based ionic liquids (ILs) with different alkyl chain lengths and counteranions. The results indicated that the effects of ILs on nTiO2 transport were considerably dependent upon IL species. In general, the transport-inhibition effects increased with the increasing length of branched alkyl chain on the ILs (i.e., [C6mim]Cl > [C4mim]Cl > [C2mim]Cl). The trend was dominated by the hydrophobicity effects of ILs. Meanwhile, the inhibitory effects of ILs were strongly related to the counteranions and followed the order of [C4mim]Cl > [C4mim][TOS] > [C4mim][PF6], mainly due to different electrostatic repulsion force between nanoparticles and porous media in the presence of various ILs. Furthermore, the inhibitory role of [C4mim][TOS] in nTiO2 transport under acidic conditions (i.e., pH 6.5) was greater than that under alkaline conditions (i.e., pH 8.0). The dominant mechanism was that the differences in the extent of electrostatic repulsion between sand grains and nTiO2 with or without ILs at pH 6.5 were larger than that at pH 8.0. Moreover, two-site kinetic retention model and DLVO theory provided good descriptions for the transport behaviors of nTiO2 with different ILs.
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Affiliation(s)
- Yumeng Song
- Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China; Ministry of Education Key Laboratory of Humid Subtropical Eco-Geographical Process, Fujian Provincial Key Laboratory for Plant Eco-Physiology, College of Geographical Science, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Qiqi Wei
- Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Taotao Lu
- Department of Hydrology, Bayreuth Center of Ecology and Environmental Research (BAYCEER), University of Bayreuth, Bayreuth D-95440, Germany
| | - Jiuyan Chen
- Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Weifeng Chen
- Ministry of Education Key Laboratory of Humid Subtropical Eco-Geographical Process, Fujian Provincial Key Laboratory for Plant Eco-Physiology, College of Geographical Science, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Wei Qi
- Henan University Minsheng College, Kaifeng 475004, China
| | - Shanhu Liu
- Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Zhichong Qi
- Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Yanmei Zhou
- Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
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15
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Akl ZF, Ezat A. Preparation and application of a novel ionic liquid-type dicationic surfactant in extractive preconcentration of trace uranium (VI). Microchem J 2021. [DOI: 10.1016/j.microc.2021.106417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Kumar H, Kaur G, Gupta K. Alterations induced in the micellization behavior of dioctyl sodium sulfosuccinate in the presence of imidazolium-based surface-active ionic liquids in aqueous medium. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1950009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Harsh Kumar
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, Punjab, India
| | - Gagandeep Kaur
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, Punjab, India
| | - Kirti Gupta
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, Punjab, India
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17
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Magina S, Barros-Timmons A, Ventura SPM, Evtuguin DV. Evaluating the hazardous impact of ionic liquids - Challenges and opportunities. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125215. [PMID: 33951860 DOI: 10.1016/j.jhazmat.2021.125215] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
Ionic liquids (ILs), being related to the design of new environmentally friendly solvents, are widely considered for applications within the "green chemistry" concept. Due to their unique properties and wide diversity, ILs allow tailoring new separation procedures and producing new materials for advanced applications. However, despite the promising technical performance, environmental concerns highlighted in recent studies focused on the toxicity and biodegradability of ILs and their metabolites have revealed that ILs safety labels are not as benign as previously claimed. This review refers to the fundamentals about the properties and applications of ILs also in the context of their potential environmental effect. Toxicological issues and harmful effects related to the use of ILs are discussed, including the evaluation of their biodegradability and ecological impact on diverse organisms and ecosystems, also with respect to bacteria, fungi, and cell cultures. In addition, this review covers the tools used to assess the toxicity of ILs, including the predictive computational models and the results of studies involving cell membrane models and molecular simulations. Summing up the knowledge available so far, there are still no reliable criteria for unequivocal attribution of toxicity and environmental impact credentials for ILs, which is a challenging research task.
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Affiliation(s)
- Sandra Magina
- CICECO-Institute of Materials and Chemistry Department, University of Aveiro, Campus de Santiago, Aveiro P-3810-193, Portugal
| | - Ana Barros-Timmons
- CICECO-Institute of Materials and Chemistry Department, University of Aveiro, Campus de Santiago, Aveiro P-3810-193, Portugal
| | - Sónia P M Ventura
- CICECO-Institute of Materials and Chemistry Department, University of Aveiro, Campus de Santiago, Aveiro P-3810-193, Portugal
| | - Dmitry V Evtuguin
- CICECO-Institute of Materials and Chemistry Department, University of Aveiro, Campus de Santiago, Aveiro P-3810-193, Portugal.
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Kumar H, Kaur G. Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review. Front Chem 2021; 9:667941. [PMID: 34055738 PMCID: PMC8158659 DOI: 10.3389/fchem.2021.667941] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/01/2021] [Indexed: 11/13/2022] Open
Abstract
The desire of improving various processes like enhanced oil recovery (EOR), water treatment technologies, biomass extraction, organic synthesis, carbon capture etc. in which conventional surfactants have been traditionally utilized; prompted various researchers to explore the self-assembly and aggregation behavior of different kinds of surface-active molecules. Ionic liquids (ILs) with long alkyl chain present in their structure constitute the advantageous properties of surfactant and ILs, hence termed as surface-active ionic liquids (SAILs). The addition of ILs and SAILs significantly influence the surface-activity and aggregation behavior of industrially useful conventional surfactants. After a brief review of ILs, SAILs and surfactants, the prime focus is made on analyzing the self-assembly of SAILs and the mixed micellization behavior of conventional surfactants with different ILs.
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Affiliation(s)
- Harsh Kumar
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
| | - Gagandeep Kaur
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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19
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Kumar H, Kaur G. Aggregation Behavior of Mixed Micellar System of Dodecyl Sulfate‐Based Surface‐Active Ionic Liquids and Anionic Surfactant in Aqueous Media. J SURFACTANTS DETERG 2020. [DOI: 10.1002/jsde.12486] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Harsh Kumar
- Department of Chemistry Dr B R Ambedkar National Institute of Technology Jalandhar Punjab 144011 India
| | - Gagandeep Kaur
- Department of Chemistry Dr B R Ambedkar National Institute of Technology Jalandhar Punjab 144011 India
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20
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Naa Yarley OP, Kojo AB, Gedel AM, Zhou C, Yu X, Richard O, Ababio TE, Jiang H, Yang H. Capacity of ethanol adjunct-treated interface of ionic liquid aqueous two phase system in simultaneous extraction and purification of sorghum leaf sheath polysaccharides. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1844237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Otu Phyllis Naa Yarley
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- Faculty of Applied Sciences, Department of Science Laboratory Technology, Accra Technical University, Accra, Ghana
| | - Azumah Bright Kojo
- Faculty of Applied Sciences, Department of Science Laboratory Technology, Accra Technical University, Accra, Ghana
| | - Ahmed Mohammed Gedel
- Faculty of Applied Sciences, Department of Science Laboratory Technology, Accra Technical University, Accra, Ghana
| | - Cunshan Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xiaojie Yu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Osae Richard
- School of Applied Science and Technology, Department of Food and Postharvest Technology, Cape Coast Technical University, PMB, Cape Coast, DL 50, Ghana
| | | | - Haonan Jiang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Hongpeng Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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Andrada HE, Silva OF, Morales GM, Correa NM, Falcone RD. Spontaneous formation of unilamellar vesicles based on the surfactant 1-methylimidazolium bis-(2-ethylhexyl) phosphate, evaluated as a function of pH and in saline solution. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125435] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Garcia MT, Ribosa I, Gonzalez JJ, Comelles F. Catanionic mixtures of surface-active ionic liquids and N-lauroyl sarcosinate: Surface adsorption, aggregation behavior and microbial toxicity. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Shmool TA, Martin LK, Clarke CJ, Bui-Le L, Polizzi KM, Hallett JP. Exploring conformational preferences of proteins: ionic liquid effects on the energy landscape of avidin. Chem Sci 2020; 12:196-209. [PMID: 34163590 PMCID: PMC8178808 DOI: 10.1039/d0sc04991c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
In this work we experimentally investigate solvent and temperature induced conformational transitions of proteins and examine the role of ion–protein interactions in determining the conformational preferences of avidin, a homotetrameric glycoprotein, in choline-based ionic liquid (IL) solutions. Avidin was modified by surface cationisation and the addition of anionic surfactants, and the structural, thermal, and conformational stabilities of native and modified avidin were examined using dynamic light scattering, differential scanning calorimetry, and thermogravimetric analysis experiments. The protein-surfactant nanoconjugates showed higher thermostability behaviour compared to unmodified avidin, demonstrating distinct conformational ensembles. Small-angle X-ray scattering data showed that with increasing IL concentration, avidin became more compact, interpreted in the context of molecular confinement. To experimentally determine the detailed effects of IL on the energy landscape of avidin, differential scanning fluorimetry and variable temperature circular dichroism spectroscopy were performed. We show that different IL solutions can influence avidin conformation and thermal stability, and we provide insight into the effects of ILs on the folding pathways and thermodynamics of proteins. To further study the effects of ILs on avidin binding and correlate thermostability with conformational heterogeneity, we conducted a binding study. We found the ILs examined inhibited ligand binding in native avidin while enhancing binding in the modified protein, indicating ILs can influence the conformational stability of the distinct proteins differently. Significantly, this work presents a systematic strategy to explore protein conformational space and experimentally detect and characterise ‘invisible’ rare conformations using ILs. Revealing solvent and temperature induced conformational transitions of proteins and the role of ion–protein interactions in determining the conformational preferences of avidin in ionic liquids.![]()
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Affiliation(s)
- Talia A Shmool
- Department of Chemical Engineering, Imperial College London London SW7 2AZ UK +44 (0)20 7594 5388
| | - Laura K Martin
- Department of Chemical Engineering, Imperial College London London SW7 2AZ UK +44 (0)20 7594 5388.,Imperial College Centre for Synthetic Biology, Imperial College London London SW7 2AZ UK
| | - Coby J Clarke
- Department of Chemical Engineering, Imperial College London London SW7 2AZ UK +44 (0)20 7594 5388
| | - Liem Bui-Le
- Department of Chemical Engineering, Imperial College London London SW7 2AZ UK +44 (0)20 7594 5388
| | - Karen M Polizzi
- Department of Chemical Engineering, Imperial College London London SW7 2AZ UK +44 (0)20 7594 5388.,Imperial College Centre for Synthetic Biology, Imperial College London London SW7 2AZ UK
| | - Jason P Hallett
- Department of Chemical Engineering, Imperial College London London SW7 2AZ UK +44 (0)20 7594 5388
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Characterization of Local Structures of Confined Imidazolium Ionic Liquids in PVdF-co-HFP Matrices by High Pressure Infrared Spectroscopy. NANOMATERIALS 2020; 10:nano10101973. [PMID: 33028010 PMCID: PMC7600376 DOI: 10.3390/nano10101973] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 01/01/2023]
Abstract
The nanoscale ion ordering of ionic liquids at confined interfaces under high pressures was investigated in this study. 1-Hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([HMIM][NTf2])/poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-co-HFP) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][NTf2])/PVdF-co-HFP were prepared and characterized by using high-pressure infrared spectroscopy. Under ambient pressure, imidazolium C2–H and C4,5–H absorptions were blue-shifted in frequency due to the presence of PVdF-co-HFP. However, the absorption of anionic νa SO2 did not reveal any significant shifts in frequency upon dilution by PVdF-co-HFP. The experimental results suggest that PVdF-co-HFP disturbs the local structures of the imidazolium C–H groups instead of the anionic SO2 groups. The frequency shifts of C4,5–H became dramatic for the mixtures at high pressures. These results suggest that pressure-enhanced ionic liquid–polymer interactions may play an appreciable role in IL-PVdF-co-HFP systems under high pressures. The pressure-induced blue-shifts due to the PVdF-co-HFP additions were more obvious for the [HMIM][NTf2] mixtures than for [EMIM][NTf2] mixtures.
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25
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Atri RS, Sanchez-Fernandez A, Hammond OS, Manasi I, Doutch J, Tellam JP, Edler KJ. Morphology Modulation of Ionic Surfactant Micelles in Ternary Deep Eutectic Solvents. J Phys Chem B 2020; 124:6004-6014. [PMID: 32551622 PMCID: PMC7467713 DOI: 10.1021/acs.jpcb.0c03876] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Deep eutectic solvents
(DES) are potentially greener solvents obtained
through the complexation of simple precursors which, among other applications,
have been investigated in recent years for their ability to support
the self-assembly of amphiphilic molecules. It is crucial to understand
the factors which influence surfactant solubility and self-assembly
with respect to the interaction of the surfactant molecule with the
DES components. In this work, small-angle neutron scattering (SANS)
has been used to investigate the micellization of cationic (CnTAB) and anionic (SDS) surfactants in a ternary
DES comprising choline chloride, urea, and glycerol, where the hydrogen
bond donors are mixed in varying molar ratios. The results show that
in each case either globular or rodlike micelles are formed with the
degree of elongation being directly dependent on the composition of
the DES. It is hypothesized that this composition dependence arises
largely from the poor solubility of the counterions in the DES, especially
at low glycerol content, leading to a tighter binding of the counterion
to the micelle surface and giving rise to micelles with a high aspect
ratio. This potential for accurate control over micelle morphology
presents unique opportunities for rheology control or to develop templated
syntheses of porous materials in DES, utilizing the solvent composition
to tailor micelle shape and size, and hence the pore structure of
the resulting material.
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Affiliation(s)
- Ria S Atri
- EPSRC Centre for Doctoral Training in Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.,Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Adrian Sanchez-Fernandez
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom.,Food Technology, Engineering and Nutrition, Lund University, Box 124, 221 00 Lund, Sweden
| | - Oliver S Hammond
- EPSRC Centre for Doctoral Training in Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.,Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom.,Laboratoire de Chimie, École Normale Supérieure de Lyon, 46 Allée d'Italie, Lyon 69007, France
| | - Iva Manasi
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - James Doutch
- ISIS Neutron and Muon Source, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom
| | - James P Tellam
- ISIS Neutron and Muon Source, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom
| | - Karen J Edler
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
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26
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Spange S, Lienert C, Friebe N, Schreiter K. Complementary interpretation of E T(30) polarity parameters of ionic liquids. Phys Chem Chem Phys 2020; 22:9954-9966. [PMID: 32352138 DOI: 10.1039/d0cp01480j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reichardt's empirical ET(30) polarity parameter has been established as appropriate polarity scale for ionic liquids. In this study, the relationships of ET(30) of ionic liquids with the empirical Kamlet-Taft polarity parameters α (hydrogen bond donating ability), β (hydrogen bond accepting ability) and π* (dipolarity/polarizability) as well as Catalán's parameter set SA (solvent acidity), SB (solvent basicity), SP (solvent polarizability) and SdP (solvent dipolarity) are examined by means of multiple square correlation analyses. Several subtasks were carried out to address this main concern. First, the influence of anion structure on ET(30) polarity parameters for various ionic liquids are investigated by use of nine differently substituted pyridinio phenolate betaine dyes of the Reichardt type. It is assumed that halide anions can have an effect on the ET(30) parameter. In the second part, the Kamlet-Taft π* parameters have been independently determined for several protic ionic liquids using 4-tert-butyl-2-(dicyanomethylene)-5-[4-(diethylamino)-benzylidene]-Δ3-thiazoline (Th) and N,N-diethyl-4-nitroaniline (DENA) to show the impact of the hydrogen bond donating ability of the IL on the actual π* values as function of probe. α and SA values have been measured using the dicyano-bis(1,10-phenanthroline) iron(ii) complex (Fe) as HBD probe. Finally, the newly determined Reichardt ET(30), Kamlet-Taft and Catalán parameters of ionic liquids were used in addition to literature data to prove correlations of ET(30) with α and π* as well as of ET(30) with SA and SdP. Linear correlations of SdP with the molar concentration of the ionic liquid are highlighted.
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Affiliation(s)
- Stefan Spange
- Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany.
| | - Caroline Lienert
- Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany.
| | - Nadine Friebe
- Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany.
| | - Katja Schreiter
- Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany.
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27
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Solanki SH, Patil SR. Phase behavior and microstructure of sugar surfactant-ionic liquid microemulsions. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1731528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Shehnaz H. Solanki
- School of Engineering and Technology, Navrachana University, Vadodara, India
| | - Sandeep R. Patil
- School of Engineering and Technology, Navrachana University, Vadodara, India
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28
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Pontoni D, DiMichiel M, Deutsch M. Temperature evolution of the bulk nano-structure in a homologous series of room temperature ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112280] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Mandal S, Sigurdsson ST. Water-soluble BDPA radicals with improved persistence. Chem Commun (Camb) 2020; 56:13121-13124. [DOI: 10.1039/d0cc04920d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
1,3-Bis(diphenylene)-2-phenylallyl (BDPA) radicals are promising polarizing agents for dynamic nuclear polarization (DNP) NMR spectroscopy. BDPAs containing tetraalkyl/aryl-ammonium groups have increased persistence and solubility in polar solvents.
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Affiliation(s)
- Sucharita Mandal
- University of Iceland
- Department of Chemistry
- Science Institute
- Reykjavik 107
- Iceland
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30
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Maurya N, Parray ZA, Maurya JK, Islam A, Patel R. Ionic Liquid Green Assembly-Mediated Migration of Piperine from Calf-Thymus DNA: A New Possibility of the Tunable Drug Delivery System. ACS OMEGA 2019; 4:21005-21017. [PMID: 31867492 PMCID: PMC6921251 DOI: 10.1021/acsomega.9b02246] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 10/18/2019] [Indexed: 06/07/2023]
Abstract
Biocompatible surface-active ionic liquid (SAIL) was used first to study the deintercalation process of a well-known natural compound piperine (PIP) as an anticancer drug, obtained from PIP-calf thymus DNA (ctDNA) complex under controlled experimental conditions. In this study, we have been exploring the interaction of PIP in SAIL (1-butyl-3-methylimidazolium octyl sulfate ionic liquid ([C4mim][C8OSO3])), ctDNA, and deintercalation of PIP from the PIP-ctDNA complex through SAIL micelle using various spectroscopic techniques. Absorption, emission, and lifetime decay measurements provide strong evidence of the relocation of PIP molecules from ctDNA to SAIL micelle. Fluorescence quenching and steady-state fluorescence anisotropy were employed to examine the exact location of PIP in different media. Moreover, the surface tension technique was also employed to confirm the release of PIP molecules from the PIP-ctDNA complex in the presence of SAIL. Circular dichroism analysis suggested that SAIL micelle does not perturb the ctDNA structure, which supported the fact that SAIL micelle can be used as a safe vehicle for PIP. Overall, the study highlighted a novel strategy for deintercalation of drug using SAIL because the release of the drug can be controlled over a period by varying the concentration and composition of the SAIL.
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Affiliation(s)
- Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research
in Basic Sciences and Protein Research Laboratory, Centre for Interdisciplinary
Research in Basic Sciences, Jamia Millia
Islamia, New Delhi 110025, India
| | - Zahoor Ahmad Parray
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research
in Basic Sciences and Protein Research Laboratory, Centre for Interdisciplinary
Research in Basic Sciences, Jamia Millia
Islamia, New Delhi 110025, India
| | - Jitendra Kumar Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research
in Basic Sciences and Protein Research Laboratory, Centre for Interdisciplinary
Research in Basic Sciences, Jamia Millia
Islamia, New Delhi 110025, India
| | - Asimul Islam
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research
in Basic Sciences and Protein Research Laboratory, Centre for Interdisciplinary
Research in Basic Sciences, Jamia Millia
Islamia, New Delhi 110025, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research
in Basic Sciences and Protein Research Laboratory, Centre for Interdisciplinary
Research in Basic Sciences, Jamia Millia
Islamia, New Delhi 110025, India
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31
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Pal A, Punia R. Effect of chain length and counter-ion on interaction study of mixed micellar system of isoquinoline-based surface active ionic liquid and cationic surfactants in aqueous medium. Colloid Polym Sci 2019. [DOI: 10.1007/s00396-019-04566-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Pathan H, Patil R, Ray D, Aswal VK, Bahadur P, Tiwari S. Structural changes in non-ionic surfactant micelles induced by ionic liquids and application thereof for improved solubilization of quercetin. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111235] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Dutta R, Sil S, Kundu S, Nandi S, Sarkar N. Multi-stimuli responsive fabrication of supramolecular assemblies using ionic self-assembly approach. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Interaction study of mixed micellar system of isoquinoline based surface active ionic liquids and cationic surfactant in aqueous medium. Colloid Polym Sci 2019. [DOI: 10.1007/s00396-019-04519-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Sintra TE, Vilas M, Martins M, Ventura SPM, Lobo Ferreira AIMC, Santos LMNBF, Gonçalves FJM, Tojo E, Coutinho JAP. Synthesis and Characterization of Surface-Active Ionic Liquids Used in the Disruption of Escherichia Coli
Cells. Chemphyschem 2019; 20:727-735. [DOI: 10.1002/cphc.201801127] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/19/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Tânia E. Sintra
- Department of Chemistry CICECO - Aveiro Institute of Materials; University of Aveiro Campus Universitário de Santiago; 3810-193 Aveiro Portugal
| | - Miguel Vilas
- Department of Organic Chemistry Faculty of Chemistry; University of Vigo Marcosende, As Lagoas; 36310 Vigo Spain
| | - Margarida Martins
- Department of Chemistry CICECO - Aveiro Institute of Materials; University of Aveiro Campus Universitário de Santiago; 3810-193 Aveiro Portugal
| | - Sónia P. M. Ventura
- Department of Chemistry CICECO - Aveiro Institute of Materials; University of Aveiro Campus Universitário de Santiago; 3810-193 Aveiro Portugal
| | - Ana I. M. C. Lobo Ferreira
- Department of Chemistry and Biochemistry CIQUP, Faculty of Sciences; University of Porto Rua do Campo Alegre 1021/1055; 4169-007 Porto Portugal
| | - Luís M. N. B. F. Santos
- Department of Chemistry and Biochemistry CIQUP, Faculty of Sciences; University of Porto Rua do Campo Alegre 1021/1055; 4169-007 Porto Portugal
| | - Fernando J. M. Gonçalves
- Department of Biology CESAM; University of Aveiro Campus Universitário de Santiago; 3810-193 Aveiro Portugal
| | - Emília Tojo
- Department of Organic Chemistry Faculty of Chemistry; University of Vigo Marcosende, As Lagoas; 36310 Vigo Spain
| | - João A. P. Coutinho
- Department of Chemistry CICECO - Aveiro Institute of Materials; University of Aveiro Campus Universitário de Santiago; 3810-193 Aveiro Portugal
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36
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Dutta R, Jana G, Mondal D, Pyne A, Sil S, Chattaraj PK, Sarkar N. The role of viscosity in various dynamical processes of different fluorophores in ionic liquid–cosolvent mixtures: a femtosecond fluorescence upconversion study. Photochem Photobiol Sci 2019; 18:1359-1372. [DOI: 10.1039/c9pp00045c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Literature reports provide ample evidence of the dynamical studies of various fluorophores in different room-temperature ionic liquid (RTIL)–cosolvent mixtures.
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Affiliation(s)
- Rupam Dutta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Gourhari Jana
- Department of Chemistry and Center for Theoretical Studies
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Dipankar Mondal
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Arghajit Pyne
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Sourav Sil
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Pratim K. Chattaraj
- Department of Chemistry and Center for Theoretical Studies
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Nilmoni Sarkar
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
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