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Kumar M, Khushi K, Bhardwaj A, Deb DK, Singh N, Elahi D, Sharma S, Bajpai G, Srivastava A. In-vitro Study for Ibuprofen Encapsulation, Controlled Release and Cytotoxicity Improvement using Excipient-Drugs Mixed Micelle. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Kumar M, Elahi D, Bhardwaj A, Sharma S, Khushi K, Singh E, Singh N, Srivastava A. Physiochemical Investigation of the Excipients Mixed Micelles for improvement of Encapsulation and Controlled Release of Antihistamine Drugs. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Naumova AO, Afanasyev AK, Melnikov PV, Zaitsev NK. Effect of micelles on pKa* of acridine: a spectroscopic study. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Kostjukova LO, Leontieva SV, Kostjukov VV. The vibronic absorption spectra and electronic states of acridine orange in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 249:119302. [PMID: 33341748 DOI: 10.1016/j.saa.2020.119302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/28/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
The time-dependent density functional theory (TD-DFT) was used to obtain vibronic absorption spectra of acridine orange dye (AO) in an aqueous solution that were in good agreement with the experiment. The protonated and neutral forms of the dye have been investigated. The results of calculations using various functionals and basis sets have been analyzed. The best agreement with experiment was given by the level of theory X3LYP/6-31G(d,p). AO molecular orbitals involved in electronic transitions due light absorption in the visible region of the spectrum have been obtained. The dipole moments and atomic charges of the ground and excited states of the AO molecule have been calculated. Maps of the electrostatic potential have been drawn. An insignificant photoinduced electron transfer was found in the central ring of the chromophore of the dye molecule. According to our calculations, the vibronic coupling and the Boltzmann distribution play a significant role in the absorption spectra of the AO.
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Affiliation(s)
- Lyudmila O Kostjukova
- Physics Department, Nakhimov Black Sea Higher Naval School, Dybenko st., 1a, Sevastopol, Crimea 299028
| | - Svetlana V Leontieva
- Physics Department, Nakhimov Black Sea Higher Naval School, Dybenko st., 1a, Sevastopol, Crimea 299028
| | - Victor V Kostjukov
- Physics Department, Sevastopol State University, Universitetskaya st., 33, Sevastopol, Crimea 299053.
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Meng J, Xia J, Meng H, Niu J. Effects of Surfactant Compounding on the Wettability Characteristics of Zhaozhuang Coal: Experiment and Molecular Simulation. TENSIDE SURFACT DET 2020. [DOI: 10.3139/113.110704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
It is important to study the mechanism of wettability of Zhaozhuang coal with surfactant compoundings in order to prevent dust disaster in the process of coal seam mining. By means of molecular simulation, the amounts of water absorbed by different systems, which are composed of monomer surfactant molecules and Zhaozhuang coal molecules or compounding surfactant molecules and Zhaozhuang coal molecules, were compared in this paper. The simulation results show that the system composed of 0.2% sodium dodecyl benzene sulfonate (SDBS) and 0.3% alcohol polyoxyethylene ether (AEO3) had the maximum water absorption amount of 479, which is significantly better than that of other compounding methods and of each monosurfactant system. Analysis results show that the interference of non-ionic surfactant can greatly reduce the electrostatic repulsion between ionic surfactants and make the adsorption sites on the Zhaozhuang coal molecule more compact. The experimental results show that the decreasing percentage of the contact angle of this type of compounding solution on Zhaozhuang coal was 83.74%, which is the best of the six compounding methods. It has a high degree of consistency with the simulation results, and the molecular simulation method applied in this paper shows that it is convenient and accurate. This research plays a guiding role in dustproof work in Zhaozhuang coal mining.
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Affiliation(s)
- Junqing Meng
- College of Emergency Management and Safety Engineering , China University of Mining and Technology (Beijing), Beijing 100083 , China
- State Key Laboratory of Coal Resources and Safe Mining , China University of Mining and Technology (Beijing), Beijing 100083 , China
- Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources , China University of Mining and Technology (Beijing), Beijing 100083 , China
| | - Junkai Xia
- College of Emergency Management and Safety Engineering , China University of Mining and Technology (Beijing), Beijing 100083 , China
- State Key Laboratory of Coal Resources and Safe Mining , China University of Mining and Technology (Beijing), Beijing 100083 , China
- Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources , China University of Mining and Technology (Beijing), Beijing 100083 , China
| | - Hanxie Meng
- College of Emergency Management and Safety Engineering , China University of Mining and Technology (Beijing), Beijing 100083 , China
- State Key Laboratory of Coal Resources and Safe Mining , China University of Mining and Technology (Beijing), Beijing 100083 , China
- Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources , China University of Mining and Technology (Beijing), Beijing 100083 , China
| | - Jiaxing Niu
- College of Emergency Management and Safety Engineering , China University of Mining and Technology (Beijing), Beijing 100083 , China
- State Key Laboratory of Coal Resources and Safe Mining , China University of Mining and Technology (Beijing), Beijing 100083 , China
- Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources , China University of Mining and Technology (Beijing), Beijing 100083 , China
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Alsharif MA, Mukhtar S, Asiri AM, Khan SA. One pot synthesis, physicochemical and photophysical investigation of biologically active pyridine-3-carboxylate (ECPC) as probe to determine CMC of surfactants in organized media. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Asiri AM, Osman OI, Al-Thaqafy SH, Khan SA. Optical properties and fluorescence quenching of carbazole containing (D–π–A) push–pull chromophores by silver nanoparticles: a detailed insight via an experimental and theoretical approach. RSC Adv 2017. [DOI: 10.1039/c6ra25741k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
(4Z)-4-[(9-Ethyl-9H-carbazol-3-yl)methylidene]-2-phenyl-1,3-oxazol-5(4H)-one (ECPO) was prepared by the one-pot multi-component reaction of 9-ethyl-9H-carbazole-3-carbaldehyde, hippuric acid, anhydrous sodium acetate and acetic anhydride under microwave irradiation.
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Affiliation(s)
- Abdullah M. Asiri
- Department of Chemistry
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Osman I. Osman
- Department of Chemistry
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Saad H. Al-Thaqafy
- Department of Chemistry
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Salman A. Khan
- Department of Chemistry
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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Development of a simple, sensitive and inexpensive ion-pairing cloud point extraction approach for the determination of trace inorganic arsenic species in spring water, beverage and rice samples by UV–Vis spectrophotometry. Food Chem 2015; 180:32-41. [DOI: 10.1016/j.foodchem.2015.01.142] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/29/2015] [Accepted: 01/29/2015] [Indexed: 11/17/2022]
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9
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A New Micellar Mediated Cloud-Point Extraction Procedure for Sensitive and Selective Determination of Trace Amounts of Total Iodine in Milk-Based Nutritional Products by Means of Indirect Spectrophotometry. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0220-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Binding of phenol red to cetylpyridinium chloride at air–solution and micelle–solution interfaces in aqueous ethylene glycol media. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.08.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Sikorski A, Trzybiński D. Structural insight into the interactions between a cationic dye and an anionic surfactant in crystals of 9-aminoacridinium dodecyl sulfate. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Alam MS, Mohammed Siddiq A, Mythili V, Priyadharshini M, Kamely N, Mandal AB. Effect of organic additives and temperature on the micellization of cationic surfactant cetyltrimethylammonium chloride: Evaluation of thermodynamics. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2014.09.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Dutta A, Dutta RK. Fluorescence behavior of cis-methyl orange stabilized in cationic premicelles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 126:270-279. [PMID: 24607477 DOI: 10.1016/j.saa.2014.02.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 01/29/2014] [Accepted: 02/07/2014] [Indexed: 06/03/2023]
Abstract
The cis-isomer of methyl orange (MO), stabilized in cationic premicelles, has been found to be fluorescence active when excited at wavelength ≤270nm. An intense fluorescence band with maximum at 575nm along with a broad moderate intensity band in the range of 370-530nm and a low intensity band at 361nm have been observed. The major band at 575nm has been attributed to S1→S0 (n-π(*)) fluorescence unlike the other azobenzenes where the S2→S0 (π-π(*)) fluorescence is usually reported. UV-Vis spectral and surface tension study indicate that the dye exists in the trans form in dye-surfactant ionpair (DSIP) at very dilute concentrations of the surfactant. But the polar cis-isomer is stabilized by micellization of the DSIPs as the concentration of the surfactant is increased. The fluorescence and hence the cis-isomer again disappear when normal micelles are formed above the normal CMC of the surfactant. It has been suggested that the symmetry forbidden S1→S0 (n-π(*)) transition of MO becomes allowed due to the formation of the twisted cis-form. TD-DFT calculations have been used as an auxiliary tool to identify the possible structures and electronic transitions responsible for the specific absorption and fluorescence properties of MO observed in presence of premicellar cationic surfactants.
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Affiliation(s)
- Anisha Dutta
- Department of Chemical Sciences, Tezpur University, Tezpur 784028, Assam, India.
| | - Robin K Dutta
- Department of Chemical Sciences, Tezpur University, Tezpur 784028, Assam, India.
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Stabilization of diketo tautomer of curcumin by premicellar cationic surfactants: A spectroscopic, tensiometric and TD-DFT study. J Mol Liq 2013. [DOI: 10.1016/j.molliq.2013.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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