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Kurtanidze M, Mzareulishvili N, Rukhadze M, Bezarashvili G, Sidamonidze N. Study of structure of nonaqueous reverse micelles with o-nitroaniline and methyl orange as molecular probes: comparison with an aqueous reverse micelles. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2022-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abstract
Instead of water reversed micelles can also be formed with polar organic solvents possessed with high dielectric constant and very low solubility in oil phase. Nonaqueous reverse micelles or microemulsions represent an interesting microreactors for various reactions, especially for reactions, where reagents can react with water. Study of localization places of molecular probes in organic polar pockets of reverse micelles is topical. The solvatochromic behavior of optical probes ortho-nitroaniline (o-NA) and methyl orange (MO) was studied in nonaqueous reverse micelles on the basis of surfactants sodium bis (2-ethylhexyl) sulfosuccinate (AOT) and polyoxyethylene (4) lauryl ether (C12E4) and polar organic solvents (acetonitrile, dimethylformamide, glacial acetic acid, etc.) insoluble in oil phase hexane. The strength of binding of o-NA and MO to AOT and C12E4 reversed micelles was assesssed via binding constant (K
b
) and association degree (α) respectively. Donor, acceptor, or dipole-dipole interactions ability of the solvent to the head groups of surfactant was taken into account in order to explain results obtained with UV–visible spectroscopic method. The binding constants of o-NA with reverse AOT micelles in the presence of various solvents in the pockets of reversed micelles increase in the following row water < glacial acetic acid < acetonitrile < dimethylformamide < dimethyl sulfoxide, but this sequence is reversed when o-NA binds to C12E4 reverse micelles. The high value of the proton donor or acidity parameter in the water molecule (x
d
= 0.37) determines the weak binding of o-NA to the head AOT groups (K
b
= 20.8) in case of aqueous reverse micelles. The high value of the dipole parameter in the dimethylformamide molecule (x
n
= 0.40) promotes its strong interaction with nonionic polyoxyethylene groups of C12E4, which results in low value of binding constant (K
b
= 26.5) in case of optical probe o-NA and low value of association degree (α = 0.60) using MO as absorption probe. The results of this article will contribute to the improvement of the concept of interfacial processes, viz.: (i) some issues of supramolecular chemistry, (ii) revealing the contribution of parameters of donor, acceptor or dipole-dipole interaction in a polar organic solvent at the surfactant/nonpolar organic solvent interface, and (iii) features of the dissolution of optical probes in non-aqueous reverse micelles.
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Affiliation(s)
- Manoni Kurtanidze
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - Natia Mzareulishvili
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - Marina Rukhadze
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - George Bezarashvili
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - Nelly Sidamonidze
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
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Separation of Some Anionic Dyes Using Reverse Micelles of CTAB and SDS as Efficient Surfactants Adsorbents from Aqueous Medium. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1155/2022/7484479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Extractive removal of anionic dyes, namely, Color Index (CI) Reactive Blue 222 and Reactive Yellow 145, using reverse micelles based on liquid-liquid extraction (LLE) was carried out from aqueous solutions using different anionic and cationic surfactants (e.g., sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB), resp.), which dissolved in ethyl acetate as solvent. The reverse micelle principal acts on the dye encapsulated in the solvent in an aqueous micropool. The experiments were carried out by mixing in a simple mixer a given amount of dyes and surfactants dissolved in a solvent in an aqueous process. Due to gravity, the dye is separated from water after the solvent phase is separated from the aqueous phase, including dye encapsulated in reverse micelles. Under various experimental conditions, extraction efficiency was studied, including solution pH, extraction time, initial dye concentration, extractant concentration, temperature, stripping agent, and solvent reusability. Dyes extracted were stripped quantitatively with NaOH solution. Recovery of the solvent and the reuse of dyes and surfactants after extraction of dye molecules from reverse micelles surfactant core considered are very important from an economic point of view. The optimized conditions were 7 ± 0.2 solution pH, 9 × 10−2 mol/L extractant concentration, 1M NaOH stripping agent concentration, 60 min extraction time, 6 × 10−5 mol/L dye concentration, and 1 : 1 aqueous to organic (A/O) ratio. 87–93% of dyes were extracted at experimental optimum conditions.
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Investigation on the Linear and Nonlinear Properties of Morin in Presence of Reverse Micelle and Different Oil Content in Reverse Micelle. J Fluoresc 2021; 31:373-383. [PMID: 33398675 DOI: 10.1007/s10895-020-02665-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
We investigate the linear and nonlinear optical property of Morin (MN) at different concentration (1 × 10-6 and 5 × 10-6 M) within AOT reversed micelle prepared by water-in-decane microemulsion having a constant molar ratio of water-to-surfactant molecules of 40 (W = [H2O]/[AOT] = 40) as well as the function of mass fraction of nano-droplet (MFD) values of 0.01,0.04, 0.07, and 0.1 by using UV-Visible, Fluorescence, FTIR, and Z-scan techniques. The steady-state measurement indicates that the presence of microenvironment can greatly affect the tautomeric structure of morin and also Morin property in microenvironment depends upon the amount of oil and Morin concentration. The increase in dipole moment from the ground state to excited state in microenvironment indicate the change in the molecular structure on morin. Morin does not show any nonlinear absorption property but the nonlinear refractive index is observed as a function of Morin concentration as well as MFD values which are due to the thermal agitation of formed dimers. Morin nonlinearity.
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Bukman L, De Souza VR, Fernandes NRC, Caetano W, Batistela VR, Hioka N. Reverse micellar extraction of dyes based on fatty acids and recoverable organic solvents. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116772] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tikanadze I, Kurtanidze M, Rukhadze M, Nanobashvili K, Toidze P, Bezarashvili G, Sigua K. Structure of Mixed Reverse Microemulsions Based on Sodium Bis (2‐Ethylhexyl) Sulfosuccinate and Sodium Cholate. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Irma Tikanadze
- Faculty of Exact and Natural SciencesIvane Javakhishvili Tbilisi State University, 3 I.Chavchavadze Avenue Tbilisi 0179 Georgia
| | - Manoni Kurtanidze
- Faculty of Exact and Natural SciencesIvane Javakhishvili Tbilisi State University, 3 I.Chavchavadze Avenue Tbilisi 0179 Georgia
| | - Marina Rukhadze
- Faculty of Exact and Natural SciencesIvane Javakhishvili Tbilisi State University, 3 I.Chavchavadze Avenue Tbilisi 0179 Georgia
| | - Ketevan Nanobashvili
- Faculty of Exact and Natural SciencesIvane Javakhishvili Tbilisi State University, 3 I.Chavchavadze Avenue Tbilisi 0179 Georgia
| | - Polina Toidze
- Department of Chemical and Biological TechnologiesGeorgian Technical University, 69 M.Kostava str. Tbilisi 0171 Georgia
| | - George Bezarashvili
- Faculty of Exact and Natural SciencesIvane Javakhishvili Tbilisi State University, 3 I.Chavchavadze Avenue Tbilisi 0179 Georgia
| | - Ketevan Sigua
- Faculty of Exact and Natural SciencesIvane Javakhishvili Tbilisi State University, 3 I.Chavchavadze Avenue Tbilisi 0179 Georgia
- Andronikashvili Institute of PhysicsI. Javakhishvili Tbilisi State University, 6 Tamarashvili Str. Tbilisi 0177 Georgia
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Liu D, Du C, Chen Z, Wang X, Shen W. The stability boundaries of droplets of water/AOT/Dynol-604/isooctane mixed microemulsions. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2019.1650758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Doudou Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Changfei Du
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhiyun Chen
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Xue Wang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Weiguo Shen
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
- Department of Chemistry, Lanzhou University, Lanzhou, China
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An Q, Shi CX, Guo H, Xie SM, Yang YY, Liu YN, Liu ZH, Zhou CZ, Niu FJ. Development and characterization of octreotide-modified curcumin plus docetaxel micelles for potential treatment of non-small-cell lung cancer. Pharm Dev Technol 2019; 24:1164-1174. [PMID: 31340709 DOI: 10.1080/10837450.2019.1647236] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We prepared octreotide (OCT)-modified curcumin plus docetaxel micelles to enhance active targeting and inhibit tumor metastasis by destroying vasculogenic mimicry (VM) channels. Soluplus was applied as an amphiphilic material to form micelles via film dispersion. The cytotoxic effects, active cellular targeting, and inhibitory effects on metastasis were systematically evaluated in vitro using A549 cells, and in vivo antitumor effects were evaluated using xenograft tumor-bearing mice. In vitro assays indicated that the OCT-modified curcumin plus docetaxel micelles showed robust cytotoxicity on A549 cells and effectively inhibited VM channels and tumor metastasis. Studying the mechanism of action indicated that OCT-modified curcumin plus docetaxel micelles downregulated MMP-2 and HIF-1α. In vivo assays indicated that OCT-modified curcumin plus docetaxel micelles increased drug accumulation at tumor sites and showed obvious antitumor efficacy. The developed OCT-modified curcumin plus docetaxel micelles may offer a promising treatment strategy for non-small-cell lung cancer.
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Affiliation(s)
- Quan An
- Technology Research and Development Centre, Yunnan Baiyao Group Health Products Co., LTD , Kunming , China
| | - Chen-Xiao Shi
- School of Pharmacy, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Hao Guo
- School of Pharmacy, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Shi-Min Xie
- School of Pharmacy, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Ying-Ying Yang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Ying-Nan Liu
- School of Pharmacy, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Zi-Hao Liu
- School of Pharmacy, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Chang-Zheng Zhou
- School of Pharmacy, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Feng-Ju Niu
- Health Protection Center, Affiliated Hospital of Shandong Academy of Traditional Chinese Medicine , Jinan , China
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