1
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Adkins Z, Yang Y, Hartman RL, Koh CA. Interactions of clathrate hydrate promoters sodium dodecyl sulfate and tetrahydrofuran investigated using 1H diffusion nuclear magnetic resonance at hydrate-forming conditions. J Chem Phys 2024; 161:094502. [PMID: 39225525 DOI: 10.1063/5.0221008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 08/13/2024] [Indexed: 09/04/2024] Open
Abstract
Thermodynamic hydrate promoters and kinetic hydrate promoters can be used to reduce the P-T conditions for clathrate hydrate synthesis to decrease the nucleation induction time while increasing growth rates. Two commonly used promoters for hydrate research are tetrahydrofuran (THF) and sodium dodecyl sulfate (SDS), which can increase the overall hydrate promotion when used in tandem as compared to individually. There are several molecular theories regarding how SDS promotes hydrate growth. This study explores the micellular theory, for which hydrate formation depends on surfactant aggregates (micelles) at a critical micelle concentration (CMC) to increase the interfacial surface area. The micellular theory is the most investigated and criticized surfactant hydrate promotion theory. To address questions related to micellar behavior, this study investigates the intermolecular behavior between SDS and THF for the identification of micelles at hydrate-forming conditions. The systems explored contained THF at 3 and 5 wt. % with varying concentrations of SDS below and above the CMC. Several methods including a qualitative visual method, conductivity, interfacial tensiometry, 13C Liquid-state Nuclear Magnetic Resonance (NMR) spectroscopy, and 1H diffusion NMR spectroscopy were evaluated at temperatures below the Krafft point of SDS and above 0 °C. The presence of THF at low concentrations decreased the critical temperature for the formation of SDS micelles, where SDS is solubilized in THF/water solution at hydrate-forming temperatures without precipitation. The CMC of SDS was decreased significantly even at hydrate-forming conditions. Mixed surfactant-cosolvent micellular behavior of SDS in the presence of low concentrations of THF was confirmed at hydrate-forming conditions above 0 °C.
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Affiliation(s)
- Zoe Adkins
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, USA
| | - Yuan Yang
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, USA
| | - Ryan L Hartman
- Department of Chemical and Biomolecular Engineering, NYU Tandon School of Engineering, Brooklyn, New York 11201, USA
| | - Carolyn A Koh
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, USA
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2
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Roshdy K, Mohamed HI, Ahmed MH, El-Dougdoug WI, Abo-Riya MA. Gemini ionic liquid-based surfactants: efficient synthesis, surface activity, and use as inducers for the fabrication of Cu 2O nanoparticles. RSC Adv 2023; 13:31128-31140. [PMID: 37881753 PMCID: PMC10594084 DOI: 10.1039/d3ra04646j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023] Open
Abstract
Discovery of green and novel synthetic routes for nanoparticles (NPs) has drawn a lot of interest due to the distinct nano size and unusual features as well as applications of such particles. Ionic liquid-based surfactants (ILBSs) and gemini ionic liquid-based surfactants (GILBSs) have become some of the best choices to be used as inducers or dispersing agents for the fabrication of nanoparticles. This work involves the synthesis, spectroscopic characterization, and surface property evaluation of three novel GILBSs (4a-c), which incorporate the imidazolium cation as the polar head with an ethylene spacer. The simple synthetic route includes, first, alkylating imidazole-N1 with the as-prepared fatty alkyl chloroacetates followed by quaternization of two equivalents of imidazole-N2 with ethylene dibromide. Investigations into the compounds' surface characteristics and thermodynamic parameters were carried out. The prepared GILBSs, 4a-c, were then used as inducers at various concentrations for the preparation of cuprous oxide nanoparticles. The size and shape of the produced NPs were examined by X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis in each case to study the effect of concentration on the NP morphology and to determine the best concentration for the NPs fabrication. The XRD patterns of the produced Cu2O NPs contain distinguishable peaks, which refer to crystalline Cu2O. Also, TEM images show that the obtained Cu2O is present in form of well dispersed nanorod particles with sizes about 55 and 23 nm at concentrations of 60 and 200 ppm, respectively.
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Affiliation(s)
- Kyrillos Roshdy
- Chemistry Department, Faculty of Science, Benha University Benha 13518 Egypt
| | - Hany I Mohamed
- Chemistry Department, Faculty of Science, Benha University Benha 13518 Egypt
| | - Mohamed H Ahmed
- Chemistry Department, Faculty of Science, Benha University Benha 13518 Egypt
| | - Wagdy I El-Dougdoug
- Chemistry Department, Faculty of Science, Benha University Benha 13518 Egypt
| | - Mohamed A Abo-Riya
- Chemistry Department, Faculty of Science, Benha University Benha 13518 Egypt
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3
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Wang T, Song C, Pan W, Xu Z, Fan L, Hu Y, Han J, Guo R. Anti-corrosive non-aqueous DBSA/MEA lamellar liquid crystal lubrication system. J Colloid Interface Sci 2023; 639:454-463. [PMID: 36827911 DOI: 10.1016/j.jcis.2023.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/17/2023] [Accepted: 02/01/2023] [Indexed: 02/07/2023]
Abstract
HYPOTHESIS Since lamellar liquid crystals (LLCS) could be used for lubrication, many LLCS systems have been constructed to improve lubrication performance. However, most studies focused on the LLCS of the water system, and its corrosiveness brought some limitations to its application. Therefore, it is necessary to construct a non-aqueous LLCS system with good lubrication and anti-corrosion properties to improve its applicability. EXPERIMENTS Anionic surfactant dodecyl benzene sulfonic acid (DBSA) was used to construct non-aqueous LLCS in different solvents, including monoethanolamine (MEA) and diethanolamine (DEA). DBSA/H2O LLCS system was constructed for comparison. The LLCS was characterized by polarizing microscope (POM), small-angle X-ray scattering (SAXS), and rheology. Its microstructure was discussed. Meanwhile, we evaluated the lubrication and anti-corrosion performance of LLCS. Its lubrication mechanism was explained through tribology tests and X-ray photoelectron spectrometer (XPS) analysis of the wear scar surface. Its anti-corrosion mechanism was investigated by using the weightlessness method, electrochemical test method, and quantum chemical theoretical calculations. FINDINGS The DBSA/MEA non-aqueous LLCS system showed better lubrication performance than DBSA/DEA and DBSA/H2O LLCS. It can adsorb on the surface of the friction pair to form a lubrication friction film, which plays a better role in reducing friction and wear. The DBSA/MEA LLCS is less corrosive to metals because it can effectively isolate oxygen and water in the air between friction pairs. Furthermore, the lone pair electrons in the 2p orbital of the N atom in the MEA molecule could coordinate with the 3d empty orbital of the Fe atom, forming a protective film on the metal surface, which plays a good anti-corrosion effect. This work not only enriched the study of non-aqueous LLCS but also expanded its potential applications in the field of lubrication.
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Affiliation(s)
- Tong Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Chao Song
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Wei Pan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Zhilong Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Lei Fan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China.
| | - Yimin Hu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China.
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4
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Hamad AA, Hassan YF, Eltoukhi WE, Derayea SM, Abourehab MAS, Mohammed BS. An eco-friendly matrix-augmented fluorescence spectroscopic approach for the analysis of mitoxantrone, an oncogenic therapy; application to the dosage form and biological matrices. LUMINESCENCE 2023; 38:166-175. [PMID: 36609821 DOI: 10.1002/bio.4437] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023]
Abstract
Mitoxantrone (MXN) is a synthetic anthracenedione oncogenic therapy. It is often prescribed as an anticancer agent to manage a variety of cancers. A green, fast, and easy fluorimetric technique for the assay of MXN as a topoisomerase type II enzyme suppressor. An investigation of MXN's fluorescence behavior in various media and solvents constituted the basis for this new technique. Methanol was shown to enhance the intrinsic fluorescence considerably. After excitation at 610 nm, the highest fluorescence intensity was found at 675 nm. Various experimental parameters, such as media, solvents, and pH levels, were tested and adjusted. ICH (International Conference on Harmonization) guidelines were followed when validating procedures. It was possible to achieve linearity in the 0.02-1.50 μg ml-1 with the method. The sensitivity (in terms of limit of detection and limit of quantification) was 0.003 and 0.008 μg ml-1 , indicating low toxicity. As a result, the current technology has a remarkable recovery for detecting residues in diverse bodily fluids. Also, the quantum yield was estimated for the designed system. Finally, the method was rated by eco-scale scoring.
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Affiliation(s)
- Ahmed A Hamad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Walid E Eltoukhi
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Sayed M Derayea
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Mohammed A S Abourehab
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Bassam S Mohammed
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University, Shebin El-Kom, Egypt
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5
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Imidazole-based surface-active gelator: Thermo responsive gel-to-gel transition of 1-hexadecyl-3-methyl imidazolium salicylate for multidimensional applications. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117773] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Fatma I, Sharma V, Thakur RC, Kumar A. Current trends in protein-surfactant interactions: A review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117344] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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7
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Lehmann A, Krollik K, Beran K, Hirtreiter C, Kubas H, Wagner C. Increasing the Robustness of Biopharmaceutical Precipitation Assays - Part I: Derivative UV Spectrophotometric Method Development for in-line Measurements. J Pharm Sci 2021; 111:146-154. [PMID: 34464648 DOI: 10.1016/j.xphs.2021.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 12/17/2022]
Abstract
In vitro precipitation assays are often applied to support drug and formulation development. Current methods applied to quantify the amount of dissolved drug, in particular (U)HPLC, require time-consuming sample preparation. Furthermore, small precipitates formed during the nucleation phase may not be removed quantitatively by filtration or centrifugation of the sample. Given the drawbacks of standard (U)HPLC analyses during the application in transfer experiments, it was the aim of this work to develop a robust and simple to implement in-line UV spectrophotometric method which accurately reflects the precipitation profile obtained from in vitro transfer assays. Based on the three model compounds cinnarizine, dipyridamole, and ketoconazole, the manuscript describes the development of a design of experiments (DoE) based approach to develop derivative UV spectrophotometric methods accounting for the change in media composition over time due to the dilution of simulated intestinal with simulated gastric fluid. An R script was developed which automatically identifies suitable wavelengths for in-line measurements. As an outcome of this study, a fast, robust, accurate, and specific derivative UV spectrophotometric methodology for measuring the concentration of dissolved drugs in in vitro transfer experiments was successfully developed. This method can flexibly be applied to multi-compartmental precipitation assays.
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Affiliation(s)
| | - Katharina Krollik
- Merck KGaA, Frankfurter Strasse 250, Darmstadt, Germany; Institute of Pharmacy, Department of Biopharmaceutics and Pharmaceutical Technology, University of Greifswald, Felix-Hausdorff-Strasse 3, Greifswald, Germany
| | - Kristian Beran
- Merck KGaA, Frankfurter Strasse 250, Darmstadt, Germany; Institute of Pharmaceutical Chemistry, Goethe University, Frankfurt, Germany
| | | | - Holger Kubas
- Merck KGaA, Frankfurter Strasse 250, Darmstadt, Germany
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8
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Kumar H, Katal A. Thermodynamic analysis of micelles formation of anionic surfactant SDS in the presence of aqueous and aqueous solution of ionic liquid 1‐butyl‐3‐methylimidazolium chloride. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4199] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Harsh Kumar
- Department of Chemistry Dr B R Ambedkar National Institute of Technology Jalandhar India
| | - Arjuna Katal
- Department of Chemistry Dr B R Ambedkar National Institute of Technology Jalandhar India
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9
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Kumar H, Kaur R. Exploration of the soluting-out effect of carbohydrates on the micellization and surface activity of long-chain imidazolium ionic liquid in the aqueous medium. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Kumar H, Katal A. Analysis of the micellar properties of surfactants dodecyl trimethylammonium bromide and dodecyl trimethylammonium chloride in aqueous ionic liquids solution. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1842758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Harsh Kumar
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
| | - Arjuna Katal
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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11
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Kuddushi M, Kumar A, Ray D, Aswal VK, El Seoud OA, Malek NI. Concentration- and Temperature-Responsive Reversible Transition in Amide-Functionalized Surface-Active Ionic Liquids: Micelles to Vesicles to Organogel. ACS OMEGA 2020; 5:24272-24284. [PMID: 33015444 PMCID: PMC7528175 DOI: 10.1021/acsomega.0c02397] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
A ubiquitous example of DNA and proteins inspires the scientific community to design synthetic systems that can construct various self-assembled complex nano-objects for high-end physiological functions. To gain insight into judiciously designed artificial amphiphilic structures that through self-assembling form various morphological architectures within a single system, herein, we have studied self-aggregation of amide-functionalized surface-active ionic liquids (AFSAILs) with different head groups in the DMSO/water mixed system. The AFSAIL forms stimuli-responsive reversible micelle and vesicle configurations that coexist with three-dimensional (3D) network structures, the organogel in the DMSO/water mixed system. The self-assembly driving forces, self-organization patterns, network morphologies, and mechanical properties of these network structures have been investigated. With the proven biodegradability and biocompatibility, one can envisage these AFSAILs as the molecules with a new dimension of versatility.
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Affiliation(s)
- Muzammil Kuddushi
- Applied
Chemistry Department, S. V. National Institute
of Technology, Surat 395007, Gujarat, India
| | - Arvind Kumar
- Salt
and Marine Chemicals Division, CSIR-Central
Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, India
| | - Debes Ray
- Solid
State Physics Division, Bhabha Atomic Research
Center Trombay, Mumbai 400085 India
| | - Vinod Kumar Aswal
- Solid
State Physics Division, Bhabha Atomic Research
Center Trombay, Mumbai 400085 India
| | - Omar A. El Seoud
- Institute
of Chemistry, The University of Sao Paulo, 748 Prof. Lineu Prestes Avenue, Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Naved I. Malek
- Applied
Chemistry Department, S. V. National Institute
of Technology, Surat 395007, Gujarat, India
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12
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El-Dossoki FI, Abd El-Maksoud SAEH, Migahed MA, Gouda MM. Micellization and Solvation Properties of Newly Synthesized Imidazolium- and Aminium-Based Surfactants. ACS OMEGA 2020; 5:9429-9441. [PMID: 32363295 PMCID: PMC7191861 DOI: 10.1021/acsomega.0c00603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
This work aimed to study the solvation properties of newly synthesized cationic surfactants: 1-hexyl-1-methyl-1H-imidazol-1-ium bromide (R6Im), 1-dodecyl-1-methyl-1H-imidazol-1-ium bromide (R12Im), N,N,N-tributylhexan-1-aminium bromide (R6N4), and N,N,N-tributyldodecan-1-aminium bromide (R12N4) in water and ethanol-water solvents with a 0.237 mole fraction of ethanol at 298.15 K using conductivity, refractive index, surface tension, and density measurements. Critical micelle concentration (CMC) for the synthesized surfactants was determined and discussed. Thermodynamic parameters including association constant, molal volume, and polarizability were calculated and discussed. Some surface properties of surfactants including excess surface concentration and minimum area per molecule were also calculated and discussed. A good agreement was found between the CMC values obtained from different techniques, such as conductivity, refractive index, and surface tension. Imidazolium surfactants had been proved to decrease the CMC and increase the association constant with the increase of ethanol mole fraction, while tributylamine had been proved to increase the CMC and decrease the association constant with the increase of ethanol mole fraction. Also, imidazolium surfactants had been proved to have higher CMC than tributylamine, which may be related to higher solvation of imidazolium surfactants than that of tributylamine. Both surfactants (R12Im) and (R12N4) were proved to have lesser CMC.
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Affiliation(s)
| | | | - Mohamed A. Migahed
- Petroleum
Applications Department, Egyptian Petroleum
Research Institute (EPRI), Cairo 11727, Egypt
| | - Mahmoud M. Gouda
- Chemistry
Department, Faculty of Science, Port Said
University, Port Said 42522, Egypt
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13
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Agudelo ÁJP, Ferreira GMD, Ferreira GMD, Coelho YL, Hudson EA, Pires ACDS, da Silva LHM. Aggregation of sodium dodecylbenzene sulfonate: Weak molecular interactions modulated by imidazolium cation of short alkyl chain length. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Dhawan H, Upadhyayula S, Sharma D. Production of near Zero ash coal through ionic liquid promoted organo-refining process. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1675705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Heena Dhawan
- Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi, India
| | - Sreedevi Upadhyayula
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - D.K. Sharma
- Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi, India
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15
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Tan J, He Z, Zhou D. Aggregation behavior of tri(trimethylsiloxy)silyl-propylpyridinnium chloride in non-aqueous solution. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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16
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Understanding the peculiar effect of water on the physicochemical properties of choline chloride based deep eutectic solvents theoretically and experimentally. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.053] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Kuddushi M, Patel NK, Rajput S, Shah A, El Seoud OA, Malek NI. Thermo-Switchable de Novo Ionic Liquid-Based Gelators with Dye-Absorbing and Drug-Encapsulating Characteristics. ACS OMEGA 2018; 3:12068-12078. [PMID: 30320287 PMCID: PMC6175494 DOI: 10.1021/acsomega.8b01984] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 09/13/2018] [Indexed: 05/04/2023]
Abstract
An ionic liquid-based surfactant with ester functionality self-aggregates in an aqueous medium and forms ionogels at 8.80% (w/v) concentration at physiological pH. The ionogel exhibited a remarkable change in its appearance with temperature from fibrillar opaque to transparent because of the dynamic changes within its supramolecular structure. This gel-to-gel phase transition occurs below the melting point of the solid ionic liquid. The ionogels were investigated using turbidity, differential scanning calorimetry, scanning electron microscopy (SEM), field emission SEM (FE-SEM), inverted microscopy, transmission electron microscopy imaging, Fourier transform infrared spectroscopy, and rheological measurements. The fibrillar opaque ionogel and transparent ionogel were studied for their ability to absorb dyes (methyl orange and crystal violet) and to encapsulate drugs (diclofenac sodium and imatinib mesylate).
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Affiliation(s)
- Muzammil Kuddushi
- Applied
Chemistry Department, S. V. National Institute
of Technology, Surat 395007 Gujarat, India
| | - Nehal K. Patel
- Applied
Chemistry Department, S. V. National Institute
of Technology, Surat 395007 Gujarat, India
| | - Sargam Rajput
- Applied
Chemistry Department, S. V. National Institute
of Technology, Surat 395007 Gujarat, India
| | - Ankit Shah
- Applied
Chemistry Department, S. V. National Institute
of Technology, Surat 395007 Gujarat, India
| | - Omar A. El Seoud
- Institute
of Chemistry, The University of Sao Paulo, 748 Prof. Lineu Prestes Av., São Paulo, São Paulo 05508-000, Brazil
| | - Naved I. Malek
- Applied
Chemistry Department, S. V. National Institute
of Technology, Surat 395007 Gujarat, India
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18
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Vaid ZS, Rajput SM, Kuddushi M, Kumar A, El Seoud OA, Malek NI. Synergistic Interaction between Cholesterol and Functionalized Ionic Liquid Based Surfactant Leading to the Morphological Transition. ChemistrySelect 2018. [DOI: 10.1002/slct.201702561] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zuber S. Vaid
- Applied Chemistry Department; S.V. National Institute of Technology; Surat - 395 007, Gujarat India
| | - Sargam M. Rajput
- Applied Chemistry Department; S.V. National Institute of Technology; Surat - 395 007, Gujarat India
| | - Muzammil Kuddushi
- Applied Chemistry Department; S.V. National Institute of Technology; Surat - 395 007, Gujarat India
| | - Arvind Kumar
- Salt and Marine Chemicals Division; CSIR-Central Salt and Marine Chemicals Research Institute; G. B. Marg Bhavnagar - 364002 India
| | - Omar A. El Seoud
- Institute of Chemistry; The University of São Paulo, P. O. Box 26077; 05513-970 São Paulo, SP Brazil
| | - Naved I. Malek
- Applied Chemistry Department; S.V. National Institute of Technology; Surat - 395 007, Gujarat India
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19
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More UU, Vaid ZS, Rajput SM, Malek NI, El Seoud OA. Effects of 1-alkyl-3-methylimidazolium bromide ionic liquids on the micellar properties of [butanediyl-1,4-bis(dimethyldodecylammonium bromide)] gemini surfactant in aqueous solution. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4210-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Vaid ZS, Kumar A, El Seoud OA, Malek NI. Drug induced micelle-to-vesicle transition in aqueous solutions of cationic surfactants. RSC Adv 2017. [DOI: 10.1039/c6ra25577a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Solubilization of the drug diclofenac sodium (DS) in micellar aggregates of ionic liquid-based surfactants and cetyltrimethylammonium bromide at 25 °C induces changes to worm-like micelles and vesicles, with potential use in drug delivery.
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Affiliation(s)
- Zuber S. Vaid
- Applied Chemistry Department
- S. V. National Institute of Technology
- Surat 395 007
- India
| | - Arvind Kumar
- Salt and Marine Chemicals Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364002
- India
| | - Omar A. El Seoud
- Institute of Chemistry
- The University of São Paulo
- São Paulo
- Brazil
| | - Naved I. Malek
- Applied Chemistry Department
- S. V. National Institute of Technology
- Surat 395 007
- India
- Institute of Chemistry
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