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Godek E, Maciołek U, Kosińska-Pezda M, Byczyński Ł, Nowicka A, Grządka E. Colloidal and Thermal Stability of Three-Component Hybrid Materials Containing Clay Mineral, Polysaccharide and Surfactant. Chemistry 2024; 30:e202303404. [PMID: 37924226 DOI: 10.1002/chem.202303404] [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: 10/16/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 11/06/2023]
Abstract
The paper presents the colloidal and thermal stability of the three-component hybrid materials containing halloysite, polysaccharides (alginic acid, cationic cellulose and hydroxyethyl cellulose) and Tritons. TX-100, TX-165 and TX-405 were used as non-ionic surfactants. Stability and other properties of the hybrid materials were tested by the following methods: UV-Vis, TGA (thermogravimetric analysis) and DSC (differential scanning calorimetry), CHN (elemental analysis), SEM-EDX (scanning electron microscopy with energy dispersive X-ray spectroscopy) and tensiometry. According to the results with the increasing polymer concentration the colloidal stability of the tested systems also increases. Moreover, the addition of the surfactants causes the increase of polysaccharide adsorption but the colloidal stability of the tested systems decreases due to large weights of formed aggregates. As follows from the thermal analysis, the comparison of the TG/DTG-DSC curves obtained for the investigated polymers confirms that their thermal decomposition courses have some common features. The obtained results have the application potential in the formation of the materials for the pollutants removal from water and sewages.
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Affiliation(s)
- Ewelina Godek
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq., 20-031, Lublin, Poland
| | - Urszula Maciołek
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq., 20-031, Lublin, Poland
| | - Małgorzata Kosińska-Pezda
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, Rzeszow University of Technology, Powstańców Warszawy 12 Sq., 35-959, Rzeszow, Poland
| | - Łukasz Byczyński
- Department of Polymers and Biopolymers, Faculty of Chemistry, Rzeszow University of Technology, Powstańców Warszawy 12 Sq., 35-959, Rzeszów, Poland
| | - Aldona Nowicka
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq., 20-031, Lublin, Poland
| | - Elżbieta Grządka
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq., 20-031, Lublin, Poland
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Peng J, Song X, Li X, Jiang Y, Liu G, Wei Y, Xia Q. Molecular Dynamics Study on the Aggregation Behavior of Triton X Micelles with Different PEO Chain Lengths in Aqueous Solution. Molecules 2023; 28:molecules28083557. [PMID: 37110791 PMCID: PMC10146536 DOI: 10.3390/molecules28083557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/02/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023] Open
Abstract
The aggregation structure of Triton X (TX) amphiphilic molecules in aqueous solution plays an important role in determining the various properties and applications of surfactant solutions. In this paper, the properties of micelles formed by TX-5, TX-114, and TX-100 molecules with different poly(ethylene oxide) (PEO) chain lengths in TX series of nonionic surfactants were studied via molecular dynamics (MD) simulation. The structural characteristics of three micelles were analyzed at the molecular level, including the shape and size of micelles, the solvent accessible surface area, the radial distribution function, the micelle configuration, and the hydration numbers. With the increase of PEO chain length, the micelle size and solvent accessible surface area also increase. The distribution probability of the polar head oxygen atoms on the surface of the TX-100 micelle is higher than that in the TX-5 or TX-114 micelle. In particular, the tail quaternary carbon atoms in the hydrophobic region are mainly located at the micelle exterior. For TX-5, TX-114, and TX-100 micelles, the interactions between micelles and water molecules are also quite different. These structures and comparisons at the molecular level contribute to the further understanding of the aggregation and applications of TX series surfactants.
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Affiliation(s)
- Jin Peng
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Xiaoju Song
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Xin Li
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Yongkang Jiang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Guokui Liu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Yaoyao Wei
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Qiying Xia
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
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Wu R, Tian M, Shu C, Zhou C, Guan W. Determination of the critical micelle concentration of surfactants using fluorescence strategies. SOFT MATTER 2022; 18:8920-8930. [PMID: 36440607 DOI: 10.1039/d2sm01320g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The increasing importance of surfactants in various fields has led to growing interest in the comprehensive characterization of surfactants. The critical micelle concentration (CMC), the most fundamental property of surfactants, is a parameter that must be measured. In particular, with the continuous expansion of the molecular structure of surfactants, numerous novel amphiphilic molecules have been developed that are capable of forming ordered aggregates in various solvent systems. Fluorescence spectroscopy, based on the differences in fluorescence intensity and wavelength of the fluorescent probe in the solvent phase and micellar phase, can sensitively detect the CMC of surfactants. This review aims to summarize the various fluorescence methods used to determine the CMC, including aggregation-induced emission (AIE), excimer formation, intramolecular charge transfer (ICT), and other miscellaneous strategies. The difficulties and limitations in the CMC determination process are also described. Further suggestions are provided to guide the existing fluorescence probes and the corresponding fluorescence methods to detect critical aggregation concentrations of amphiphilic molecules.
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Affiliation(s)
- Riliga Wu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Mingce Tian
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Chang Shu
- Affiliated Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China.
| | - Chengcheng Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Weijiang Guan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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Ibuprofen molecular aggregation by direct back-face transmission steady-state fluorescence. Photochem Photobiol Sci 2022; 21:1637-1645. [PMID: 35665917 PMCID: PMC9166242 DOI: 10.1007/s43630-022-00247-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/12/2022] [Indexed: 11/10/2022]
Abstract
Direct back-face transmission steady-state fluorescence was successfully applied to the study of aggregation of ibuprofen and ibuprofenate anion in solution taking advantage of its own fluorescence. The analysis of the experimental data involves the use of the differential reabsorption model to account for re-absorption phenomenon and the closed association model to describe aggregation. The fluorescence quantum yield of ibuprofenate increases when it aggregates in the presence of sodium, but it markedly decreases when 1-butyl-3-methylimidazolium is used as counterion. The proposed methodology allows the accurate determination of the critical aggregation concentrations and the mean aggregation numbers. Results were supported by complementary techniques such as time-resolved fluorescence, 1H-NMR and small-angle neutron and X-ray scattering. The developed technique constitutes a promising strategy to characterize the aggregation of poorly fluorescent surfactants that aggregates at high concentrations and hence at high absorbance values, conditions in which the most common right-angle configuration for fluorescence acquisition is troublesome due to re-absorption.
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Mabrouk MM, Hamed NA, Mansour FR. Physicochemical and electrochemical methods for determination of critical micelle concentrations of surfactants: a comprehensive review. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02891-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Pliss EM, Soloviev ME, Loshadkin DV, Molodochkina SV, Kasaikina OT. Kinetic model of polyunsaturated fatty acids oxidation in micelles. Chem Phys Lipids 2021; 237:105089. [PMID: 33965418 DOI: 10.1016/j.chemphyslip.2021.105089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/10/2021] [Accepted: 05/04/2021] [Indexed: 10/21/2022]
Abstract
A kinetic model of polyunsaturated fatty acids (PUFAs) radical chain oxidation in micelles is presented, taking into account the diffusion of active intermediates between aqueous and organic phases, and its effect on the detailed mechanism of the process. The model made it possible to indirectly involve the structural changes of micelles and their kinetic characteristics by varying the actual values of the reactions rate constants. The modeling results are in good agreement with experimental data for the oxidation of methyl linoleate and linoleic acid.
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Affiliation(s)
- E M Pliss
- P.G. Demidov Yaroslavl State University, Russian Federation.
| | - M E Soloviev
- Yaroslavl State Technical University, Russian Federation
| | - D V Loshadkin
- Yaroslavl State Technical University, Russian Federation
| | | | - O T Kasaikina
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, Russian Federation
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Loshadkin DV, Pliss EM, Kasaikina OT. Features of Methyl Linoleate Oxidation in Triton X-100 Micellar Buffer Solutions. RUSS J APPL CHEM+ 2020. [DOI: 10.1134/s1070427220070216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Mustafa IF, Hussein MZ. Synthesis and Technology of Nanoemulsion-Based Pesticide Formulation. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1608. [PMID: 32824489 PMCID: PMC7466655 DOI: 10.3390/nano10081608] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 12/17/2022]
Abstract
Declines in crop yield due to pests and diseases require the development of safe, green and eco-friendly pesticide formulations. A major problem faced by the agricultural industry is the use of conventional agrochemicals that contribute broad-spectrum effects towards the environment and organisms. As a result of this issue, researchers are currently developing various pesticide formulations using different nanotechnology approaches. The progress and opportunities in developing nanoemulsions as carriers for plant protection or nanodelivery systems for agrochemicals in agricultural practice have been the subject of intense research. New unique chemical and biologic properties have resulted in a promising pesticide nanoformulations for crop protection. These innovations-particularly the nanoemulsion-based agrochemicals-are capable of enhancing the solubility of active ingredients, improving agrochemical bioavailability, and improving stability and wettability properties during the application, thus resulting in better efficacy for pest control and treatment. All of these-together with various preparation methods towards a greener and environmentally friendly agrochemicals-are also discussed and summarized in this review.
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Affiliation(s)
| | - Mohd Zobir Hussein
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Seri Kembangan 43400, Selangor, Malaysia;
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Mukherjee A, Ghosh S, Pal M, Singh B. Deciphering the effective sequestration of DNA bounded bioactive small molecule Safranin-O by non-ionic surfactant TX-114 and diminution its cytotoxicity. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Luo X, Gao J, Cao M, Xiang C, Zhang Y, Sun T, Xie H, Lei Q, Fang W. Tuning the conformations of hemoglobin via interactions with single-chain and Gemini quaternary ammonium surfactants. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.04.086] [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]
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Paschalidou P, Theocharis CR. Tuning the porosity and surface characteristics of nanoporous titania using non-ionic surfactant reverse micelles. RSC Adv 2018; 8:29890-29898. [PMID: 35547270 PMCID: PMC9085262 DOI: 10.1039/c8ra05495a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 08/10/2018] [Indexed: 11/30/2022] Open
Abstract
Nanoporous titania was prepared from non-ionic surfactant reverse micelles (e.g. Triton-X) and the effects of the chain length of the surfactants and calcination temperature of the precursor gels on the surface properties of the product (mesoporous titania) were investigated. The studies included sample characterization of the precursor gels from the titania samples characterized by UV-Vis, ATR-FTIR, XRD, TGA/DSC and the titania samples by N2-adsorption BET, XRD, FT-IR, UV-Vis diffuse reflectance and SEM measurements after calcination at 400 °C, 500 °C, 600 °C, 700 °C and 800 °C. According to the experimental results, generally increasing the length of the polar tail of Triton-X results in an increased specific surface area and volume, and an average pore diameter of the solids. Moreover, increasing the length of the polar tail is associated with a smaller crystallite size and higher thermal stability of the materials. Finally, a nucleation mechanism of the titania particles within the aqueous centre of the reversed micelles is proposed. Nanoporous titania was prepared from non-ionic reverse micelles, and the effects of chain length and calcination temperature of the mother gels were investigated.![]()
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Affiliation(s)
- Polyxeni Paschalidou
- Porous Solids Group, Department of Chemistry, University of Cyprus P. O. Box 20537 1678 Nicosia Cyprus
| | - Charis R Theocharis
- Porous Solids Group, Department of Chemistry, University of Cyprus P. O. Box 20537 1678 Nicosia Cyprus
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Sastry NV, Singh DK, Trivedi PA. Studies on Micellar Behavior of PEO-PBO or PEO-PBO-PEO Copolymers, or Surface Active Amphiphilic Ionic Liquids in Aqueous Media and Exploration of the Micellar Solutions for Solubilization of Dexamethasone and its Delayed Release. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Nandhibatla V. Sastry
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar 388120 Gujarat India
| | - Dipak K. Singh
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar 388120 Gujarat India
| | - Pooja A. Trivedi
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar 388120 Gujarat India
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Sastry NV, Singh DK. Surfactant and Gelation Properties of Acetylsalicylate Based Room Temperature Ionic Liquid in Aqueous Media. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10000-10016. [PMID: 27541982 DOI: 10.1021/acs.langmuir.6b02074] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An amphiphilic room temperature ionic liquid (RTIL) containing acetylsalicylate anion of type 1-dodecyl-1-methylpiperidinium acetylsalicylate, [C12mpip][AcSa], is synthesized from the precursor [C12mpip][Cl] by an ion exchange process. The sample is characterized, and its surface active and aggregation behavior in water has been studied and explained. The critical aggregation concentrations (CACs) are determined by a variety of methods, namely, electrical conductivity, surface tension, steady state florescence, and isothermal titration calorimetry (ITC) at different temperatures. As compared to its precursor, [C12mpip][AcSa] has low CAC values, indicating enhanced favorable interactions between the [alkylmpip]+ cation···bulky [AcSa]- anion and also hydrogen bonding of both of the ions with water. The free energy of aggregation ΔG0a is always negative, and both enthalpy and entropy of aggregation drive the aggregation process. The micelle-like aggregates are ellipsoidal in shape. The aggregation numbers are determined from translational diffusion coefficients and florescence quenching measurements. Aggregates of [C12mpip][AcSa] are larger than those of its precursor IL with chloride anion. Therefore, it is evident that the close interactions between the ion pairs of [C12mpip]+···[AcSa]- facilitate packing of more molecules in an aggregate. The steady state and oscillatory rheology measurements in aqueous solutions consisting of mixtures of [C12mpip][AcSa] and sodium salicylate (SS), an hydrotope additive, were carried out. The analysis of zero shear viscosity and moduli properties as a function of concentration and temperature reveals that the addition of SS promotes the growth of small ellipsoid aggregates into large worm-like structures with a typical viscoelastic gel behavior. The moduli properties vs temperature profiles are complex and no hysteresis was produced in heating and cooling modes, suggesting the thermoirreversibile and complex nature of the network structures. The release of the acetylsalicylate anion from the gels could be triggered by simple dilution, and the release occurs due to surface erosion and demicellization.
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Affiliation(s)
- Nandhibatla V Sastry
- Department of Chemistry, Sardar Patel University , Vallabh Vidyanagar 388120, Gujarat, India
| | - Dipak K Singh
- Department of Chemistry, Sardar Patel University , Vallabh Vidyanagar 388120, Gujarat, India
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