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Leclercq L, Nardello-Rataj V. How to improve the chemical disinfection of contaminated surfaces by viruses, bacteria and fungus? Eur J Pharm Sci 2020; 155:105559. [PMID: 32950617 PMCID: PMC7497740 DOI: 10.1016/j.ejps.2020.105559] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/24/2020] [Accepted: 09/14/2020] [Indexed: 01/12/2023]
Abstract
In response to the current pandemic situation, we present the development of an effective virucidal and biocidal solution to prevent from the spread of infectious diseases through contact with contaminated surfaces. The disinfectants, based on equimolar mixtures of didecyldimethylammonium chloride ([DiC10][Cl]), dodecyloctaglycol (C12E8), and cyclodextrin (CD), show synergistic effects against enveloped viruses (RSV, HSV-1, VACV) and fungi (C. albicans), and additive responses against bacteria (P. aeruginosa). These synergistic mixtures could then be highly helpful for prevention of respiratory illnesses, since a boosted activity allows: (i) a faster eradication of pathogens, (ii) a shorter contact time, and (iii) a complete and broad-spectrum eradication to avoid spread of resistant strains (including bacteria and fungi).
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Affiliation(s)
- Loïc Leclercq
- UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Université de Lille, CNRS, Centrale Lille, Université d'Artois, 59000 Lille, France.
| | - Véronique Nardello-Rataj
- UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Université de Lille, CNRS, Centrale Lille, Université d'Artois, 59000 Lille, France
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2
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Mulder I, Schmittdiel M, Frei H, Hofmann L, Gerbig D, Siemens J. Soil water solutes reduce the critical micelle concentration of quaternary ammonium compounds. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:45311-45323. [PMID: 32789630 PMCID: PMC7686171 DOI: 10.1007/s11356-020-10188-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/17/2020] [Indexed: 05/31/2023]
Abstract
Quaternary alkyl ammonium compounds (QAACs) are produced in large quantities for use as surfactants and disinfectants and also found in soils, sediments, and surface waters, where they are potentially involved in the selection of antibiotic resistance genes. Micelle formation influences fate and effects of QAACs. The critical micelle concentration (CMC) of six homologs of benzylalkylammonium chlorides (BAC) was determined in deionized water, 0.01 M CaCl2 solution, and aqueous soil extracts, using both spectrofluorometric and tensiometric methods. Additionally, eight organic model compounds were employed at concentrations of 15 mg C L-1 as background solutes in order to test the effect of dissolved organic carbon (DOC) on CMCs. Results found CMCs decreased with an increasing length of the alkyl chain from 188 mM for BAC-C8 to 0.1 mM for BAC-C18. Both methods yielded similar results for measurements in water and CaCl2 solution; however, the spectrofluorescence method did not work for soil extracts due to fluorescence quenching phenomena. In soil extracts, CMCs of BAC-C12 were reduced below 3.7 mM, while the CMC reduction in soil extracts was less pronounced for BAC-C16. Besides ionic strength, molecular structures of BACs and dissolved organic compounds also affected the CMC. The number of carboxyl groups and small molecular weights of the DOC model compounds reduced the CMCs of BAC-C12 and BAC-C16 at pH 6. This study highlights that CMCs can be surpassed in soil solution, pore waters of sediments, or other natural waters even at (small) concentrations of QAACs typically found in the environment.
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Affiliation(s)
- Ines Mulder
- Institute of Soil Science and Soil Conservation, iFZ Research Centre for BioSystems, Land Use and Nutrition, Justus-Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany.
| | - Malte Schmittdiel
- Institute of Soil Science and Soil Conservation, iFZ Research Centre for BioSystems, Land Use and Nutrition, Justus-Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Henning Frei
- Institute of Soil Science and Soil Conservation, iFZ Research Centre for BioSystems, Land Use and Nutrition, Justus-Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Laura Hofmann
- Institute of Soil Science and Soil Conservation, iFZ Research Centre for BioSystems, Land Use and Nutrition, Justus-Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Dennis Gerbig
- Institute of Organic Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Jan Siemens
- Institute of Soil Science and Soil Conservation, iFZ Research Centre for BioSystems, Land Use and Nutrition, Justus-Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
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3
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Using the dynamic Phase Inversion Temperature (PIT) as a fast and effective method to track optimum formulation for Enhanced Oil Recovery. J Colloid Interface Sci 2019; 557:746-756. [DOI: 10.1016/j.jcis.2019.09.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/30/2019] [Accepted: 09/15/2019] [Indexed: 11/20/2022]
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Otmani H, Bouanani F, Bendedouch D. Synergistic Properties of a Mixed Micelle System Consisting of a Nonionic Fluorinated Surfactant and a Cationic Surfactant. TENSIDE SURFACT DET 2019. [DOI: 10.3139/113.110600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The physicochemical properties of aqueous surfactant mixtures containing a nonionic fluorosurfactant (undecafluoro-n-pentyldecaoxyethylene ether (C5F11EO10)) and various amounts of a cationic surfactant (decyltrimethylammonium bromide (DeTAB)) were determined by surface tension and conductivity measurements. All values of the critical micelle concentrations of the mixtures turn out to be smaller than those of both pure surfactants revealing the presence of a significant synergy for all DeTAB proportions in the mixed system. The analysis of the experimental data was performed on the basis of three different well established thermodynamic models of mixed micelle formation to determine several relevant parameters, especially the micelle composition, the interaction parameters, and the free energy of micelle formation. The results indicate that the dominant interactions between DeTAB and C5F11EO10 molecules are attractive. The main reason for this behavior could be attributed to the complexation between the polyoxyethylene chain of C5F11EO10 and the quaternary ammonium group of DeTAB giving rise to stable structures.
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Affiliation(s)
- Hadjira Otmani
- Université d'Oran 1 Ahmed Ben Bella , Département de Chimie, Oran , Algérie
| | - Farida Bouanani
- Université d'Oran 1 Ahmed Ben Bella , Département de Chimie, Oran , Algérie
- Ecole Nationale Polytechnique d'Oran , Département de physique-Chimie, Oran , Algérie
| | - Dalila Bendedouch
- Université d'Oran 1 Ahmed Ben Bella , Département de Chimie, Oran , Algérie
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Häckl K, Mühlbauer A, Ontiveros JF, Marinkovic S, Estrine B, Kunz W, Nardello-Rataj V. Carnitine alkyl ester bromides as novel biosourced ionic liquids, cationic hydrotropes and surfactants. J Colloid Interface Sci 2018; 511:165-173. [DOI: 10.1016/j.jcis.2017.09.096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 11/15/2022]
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Belmessieri D, Gozlan C, Duclos MC, Molinier V, Aubry JM, Dumitrescu O, Lina G, Redl A, Duguet N, Lemaire M. Synthesis, surfactant properties and antimicrobial activities of methyl glycopyranoside ethers. Eur J Med Chem 2017; 128:98-106. [PMID: 28157594 DOI: 10.1016/j.ejmech.2017.01.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/20/2016] [Accepted: 01/23/2017] [Indexed: 11/30/2022]
Abstract
A series of amphiphilic methyl glucopyranoside ethers incorporating various alkyl chain lengths has been synthesized from commercially available methyl glucopyranosides following an acetalisation/hydrogenolysis sequence. The amphiphilic properties of ethers and acetal intermediates were evaluated. Both families exhibit excellent surfactant properties with a maximum efficiency obtained for compounds bearing a linear dodecyl chain (CMC = 0.012 mM, γsat. = 30 mN m-1). Antimicrobial activity studies revealed an efficient activity (0.03 < MIC < 0.12 mM) against Gram-positive bacteria such as Listeria monocytogenes, Enterococcus faecalis, Enterococcus faecium and Staphylococcus aureus. More importantly, these compounds were found to be active against multi-resistant strains such as vancomycin-, methicillin- and daptomycin-resistant strains. Finally, it was found that antimicrobial activities are closely related to physicochemical properties and are also influenced by the nature of the carbohydrate moiety.
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Affiliation(s)
- Dorine Belmessieri
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 Boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France; Univ Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, UMR5308, International Center for Infectiology Research (CIRI), Inserm U1111, 7 rue Guillaume Paradin, F-69008 Lyon, France; Centre National de Référence des Staphylocoques, 59 Boulevard Louis Pinel, F-69677 Bron Cedex, France
| | - Charlotte Gozlan
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 Boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France; Tereos Syral SAS, Z.I et Portuaire, B.P.32, 67390 Marckolsheim, France
| | - Marie-Christine Duclos
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 Boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Valérie Molinier
- Univ. Lille, CNRS, ENSCL, UMR 8181, UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, Cité Scientifique, France
| | - Jean-Marie Aubry
- Univ. Lille, CNRS, ENSCL, UMR 8181, UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, Cité Scientifique, France
| | - Oana Dumitrescu
- Univ Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, UMR5308, International Center for Infectiology Research (CIRI), Inserm U1111, 7 rue Guillaume Paradin, F-69008 Lyon, France; Centre National de Référence des Staphylocoques, 59 Boulevard Louis Pinel, F-69677 Bron Cedex, France
| | - Gérard Lina
- Univ Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, UMR5308, International Center for Infectiology Research (CIRI), Inserm U1111, 7 rue Guillaume Paradin, F-69008 Lyon, France; Centre National de Référence des Staphylocoques, 59 Boulevard Louis Pinel, F-69677 Bron Cedex, France
| | - Andreas Redl
- Tereos Syral SAS, Z.I et Portuaire, B.P.32, 67390 Marckolsheim, France
| | - Nicolas Duguet
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 Boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France.
| | - Marc Lemaire
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 Boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France.
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Leclercq L, Dewilde A, Aubry JM, Nardello-Rataj V. Supramolecular assistance between cyclodextrins and didecyldimethylammonium chloride against enveloped viruses: Toward eco-biocidal formulations. Int J Pharm 2016; 512:273-281. [PMID: 27576667 DOI: 10.1016/j.ijpharm.2016.08.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/23/2016] [Accepted: 08/26/2016] [Indexed: 10/21/2022]
Abstract
Nosocomial infections have emerged as important causes of morbidity and mortality in immunocompromised individuals. In this respect, biocides are widely used in hospitals leading to resistant microorganisms. We show here that cyclodextrins can remarkably boost the virucidal activity of di-n-decyldimethylammonium chloride. These oligosaccharides synergistically work with the biocide affording a noticeable reduction of the active virucide concentration between 40 and 85%. Partial replacement of a significant amount of the biocide by eco- and bio-compatible cyclodextrins whilst maintaining the same activity is of great interest as it allows the reduction of the toxicological drawbacks of classical biocide mixtures.
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Affiliation(s)
- Loïc Leclercq
- Univ. Lille, CNRS, ENSCL, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide-Equipe CÏSCO, F-59000 Lille, France.
| | - Anny Dewilde
- Univ. Lille, Faculté de Médecine, UPRES EA 3610, Institut de Microbiologie, Laboratoire de Virologie, CHRU Lille, F-59037 Lille Cedex, France
| | - Jean-Marie Aubry
- Univ. Lille, CNRS, ENSCL, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide-Equipe CÏSCO, F-59000 Lille, France
| | - Véronique Nardello-Rataj
- Univ. Lille, CNRS, ENSCL, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide-Equipe CÏSCO, F-59000 Lille, France.
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8
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Nardello-Rataj V, Leclercq L. Aqueous solutions of didecyldimethylammonium chloride and octaethylene glycol monododecyl ether: Toward synergistic formulations against enveloped viruses. Int J Pharm 2016; 511:550-559. [PMID: 27452423 DOI: 10.1016/j.ijpharm.2016.07.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/18/2016] [Accepted: 07/20/2016] [Indexed: 11/25/2022]
Abstract
Micellization of di-n-decyldimethylammonium chloride, [DiC10][Cl], and octaethylene glycol monododecyl ether, C12E8, mixtures have been investigated by surface tension and conductivity measurements. From these results, various physicochemical and thermodynamic key parameters (e.g. micellar mole fraction of [DiC10][Cl], interaction parameter, free energy of micellization, etc.) have been evaluated and discussed in detail. The results prove high synergistic effect between the two surfactants. Based on these results, the virucidal activity of an equimolar mixture of [DiC10][Cl] and C12E8 has been investigated. A marked synergism was observed on lipid-containing deoxyribonucleic and ribonucleic acid viruses, such as herpes virus, respiratory syncytial virus, and vaccinia viruses. In contrast, Coxsackievirus (non-enveloped virus) was not inactivated. These results support that the mechanism is based on the extraction of lipids and/or proteins from the envelope inside the mixed micelles. This extraction creates "holes" the size of which increases with concentration up to a specific value which triggers the virus inactivation. Such a mixture could be used to extend the spectrum of virucidal activity of the amphiphiles virucides commonly employed in numerous disinfectant solutions.
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Affiliation(s)
| | - Loïc Leclercq
- Univ. Lille, CNRS, ENSCL, UMR 8181UCCS Equipe CÿSCO, F-59000 Lille, France.
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9
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Micellar and Interfacial Behavior of Mixed Systems Containing Glycoside-Based Surfactant and Cationic Didecyldimethylammonium Chloride. J SURFACTANTS DETERG 2015. [DOI: 10.1007/s11743-015-1705-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Ontiveros JF, Pierlot C, Catté M, Molinier V, Salager JL, Aubry JM. Structure–interfacial properties relationship and quantification of the amphiphilicity of well-defined ionic and non-ionic surfactants using the PIT-slope method. J Colloid Interface Sci 2015; 448:222-30. [DOI: 10.1016/j.jcis.2015.02.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 02/09/2015] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
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Han Z, Yang X, Liu Y, Wang J, Gao Y. Physicochemical Properties and Phase Behavior of Didecyldimethylammonium Chloride/Alkyl Polyglycoside Surfactant Mixtures. J SURFACTANTS DETERG 2015. [DOI: 10.1007/s11743-015-1679-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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12
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Hong B, Leclercq L, Collinet-Fressancourt M, Lai J, Bauduin P, Aubry JM, Nardello-Rataj V. Synergy between bis(dimethyldioctylammonium) molybdate and tetraethylene glycol monooctyl ether: A winning combination for interfacial catalysis in thermo-controlled and switchable microemulsions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tobe S, Majima T, Tadenuma H, Suekuni T, Sakai K, Sakai H, Abe M. Nonionic surfactants enhancing bactericidal activity at their critical micelle concentrations. J Oleo Sci 2014; 64:61-8. [PMID: 25492231 DOI: 10.5650/jos.ess14159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Bactericidal activities of benzalkonium chloride [also known as alkyldimethylbenzylammonium chloride (ADBAC)] containing nonionic surfactants such as methyl ester ethoxylates (MEE) with the alkyl group C8-C14 and oxyethylene (EO) group of average adduct number 3-15 were measured against Escherichia coli and Staphylococcus aureus. Sample solutions containing MEE in the vicinity of the critical micelle concentration exhibited a dramatic decrease in viable bacterial counts. MEE with an alkyl group of C12 and an oxyethylene group of lower adduct number exhibited little viable bacterial counts than those having higher EO adduct numbers. MEE with reduced EO adduct numbers increased fluorescence intensity in E. coli using the viability stain SYTO 9. Our results show that MEE molecules with low EO adduct numbers exhibited bactericidal activity by increasing the permeability of the E. coli cell membrane. Sample solution containing ADBAC and MEE molecules with lower EO adduct numbers also displayed higher zeta potentials. Moreover, ADBAC molecules incorporated into micelles of MEE with lower EO adduct numbers were adsorbed onto the surface of E. coli, which augmented bactericidal activity.
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Affiliation(s)
- Seiichi Tobe
- Fabric-care Research Laboratories, Research & Development Headquarters, Lion Corporation
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Nardello-Rataj V, Leclercq L. Encapsulation of biocides by cyclodextrins: toward synergistic effects against pathogens. Beilstein J Org Chem 2014; 10:2603-22. [PMID: 25550722 PMCID: PMC4273244 DOI: 10.3762/bjoc.10.273] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 10/24/2014] [Indexed: 11/23/2022] Open
Abstract
Host-guest chemistry is useful for the construction of nanosized objects. Some of the widely used hosts are probably the cyclodextrins (CDs). CDs can form water-soluble complexes with numerous hydrophobic compounds. They have been widespread used in medicine, drug delivery and are of interest for the biocides encapsulation. Indeed, this enables the development of more or less complex systems that release antimicrobial agents with time. In this paper, the general features of CDs and their applications in the field of biocides have been reviewed. As the key point is the formation of biocide-CD inclusion complexes, this review deals with this in depth and the advantages of biocide encapsulation are highlighted throughout several examples from the literature. Finally, some future directions of investigation have been proposed. We hope that scientists studying biocide applications receive inspiration from this review to exploit the opportunities offered by CDs in their respective research areas.
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Affiliation(s)
- Véronique Nardello-Rataj
- Université de Lille, Sciences et Technologies, EA 4478, Chimie Moléculaire et Formulation, F-59655 Villeneuve d'Ascq Cedex, France
| | - Loïc Leclercq
- Université de Lille, Sciences et Technologies, EA 4478, Chimie Moléculaire et Formulation, F-59655 Villeneuve d'Ascq Cedex, France
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Lukowicz T, Company Maldonado R, Molinier V, Aubry JM, Nardello-Rataj V. Fragrance solubilization in temperature insensitive aqueous microemulsions based on synergistic mixtures of nonionic and anionic surfactants. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.11.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Leclercq L, Lubart Q, Aubry JM, Nardello-Rataj V. Modeling of multiple equilibria in the self-aggregation of di-n-decyldimethylammonium chloride/octaethylene glycol monododecyl ether/cyclodextrin ternary systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:6242-6252. [PMID: 23627717 DOI: 10.1021/la400782c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The surface tension equations of binary surfactant mixtures (di-n-decyldimethylammonium chloride and octaethylene glycol monododecyl ether) are established by combining the Szyszkowski equation of surfactant solutions, the ideal or nonideal mixing theory, and the phase separation model. For surfactant mixtures, the surface tension at the air-water interface is calculated using nonideal theory due to synergism between the two adsorbed surfactant types. The incorporation of cyclodextrin complexation model to the surface tension equations gives a robust model for the description of the surface tension isotherms of binary, ternary, and more complex systems involving numerous inclusion complexes. The surface tension data obtained experimentally shows excellent agreement with the theoretical model below and above the formation of micelles. The strong synergistic effect observed between the two surfactants is disrupted by the presence of CDs, leading to ideal behavior of ternary systems. Indeed, depending on the nature of the cyclodextrin (i.e., α, β, or γ), which allows a tuning of the cavity size, the binding constants with the surfactants are modified as well as the surface properties due to strong modification of equilibria involved in the ternary mixture.
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Affiliation(s)
- Loïc Leclercq
- Université Lille 1 , EA Chimie Moléculaire et Formulation 4478, Equipe Oxydation et Physico-chimie de la Formulation, Bât. C6, F-59655 Villeneuve d'Ascq Cedex, France
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Wills PW, Lopez SG, Burr J, Taboada P, Yeates SG. Segregation in like-charged polyelectrolyte-surfactant mixtures can be precisely tuned via manipulation of the surfactant mass ratio. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:4434-4440. [PMID: 23461786 DOI: 10.1021/la400130x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, we consider segregative phase separation in aqueous mixtures of quaternary ammonium surfactants didecyldimethylammonium chloride (DDQ) and alkyl (C12, 70%; C14 30%) dimethyl benzyl ammonium chloride (BAC) upon the addition of poly(diallyldimethylammonium) chloride (pDADMAC) as a function of both concentration and molecular weight. The nature of the surfactant type is dominant in determining the concentration at which separation into an upper essentially surfactant-rich phase and lower polyelectrolyte-rich phase is observed. However, for high-molecular-weight pDADMAC there is a clear indication of an additional depletion flocculation effect. When the BAC/DDQ ratio is tuned, the segregative phase separation point can be precisely controlled. We propose a phase separation mechanism for like-charged quaternary ammonium polyelectrolyte/surfactant/water mixtures induced by a reduction in the ionic atmosphere around the surfactant headgroup and possible ion pair formation. An additional polyelectrolyte-induced depletion flocculation effect was also observed.
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Affiliation(s)
- Peter W Wills
- School of Chemistry, The University of Manchester, Manchester, UK
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Fressancourt-Collinet M, Hong B, Leclercq L, Alsters PL, Aubry JM, Nardello-Rataj V. Acidic Three-Liquid-Phase Microemulsion Systems Based on Balanced Catalytic Surfactant for Epoxidation and Sulfide Oxidation under Mild Conditions. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200514] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bhatt D, Maheria KC, Parikh J. Studies on Surfactant–Ionic Liquid Interaction on Clouding Behaviour and Evaluation of Thermodynamic Parameters. J SURFACTANTS DETERG 2012. [DOI: 10.1007/s11743-012-1414-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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