1
|
Viradiya RA, Patel N, Aswal VK, Patel VK, Panjabi SH. Investigating the Influence of Aromatic Counterions on the Micellar Structure and Aggregation Behavior of Morpholinium-Based Surface-Active Ionic Liquids in an Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11684-11693. [PMID: 37549381 DOI: 10.1021/acs.langmuir.3c01257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Two morpholinium-based surface-active ionic liquids (SAILs) with aromatic counterions were synthesized, namely, n-dodecyl-n-methylmorpholinium salicylate [C12mmor][Sal] and n-dodecyl-n-methylmorpholinium 3-hydroxy-2-naphthoate [C12mmor][3-h-2-n], and explored their aggregation behavior in aqueous solutions systematically. Electrical conductivity, small-angle neutron scattering (SANS), surface tension (ST), and UV-vis spectroscopy measurements were employed to determine various thermodynamic, micellar, and interfacial parameters, like the degree of counterion binding (β), critical micelle concentration (CMC), minimum area per molecule (Amin), surface excess concentration (Γmax), standard Gibbs free energy of adsorption (ΔGad0), aggregation number (Nagg), standard Gibbs free energy of micellization (ΔGm0), standard enthalpy of micelle formation (ΔHm0), and the standard entropy of micellization (ΔSm0) in an aqueous solution. Incorporating the aromatic counterions favors significantly excellent micellization properties over conventional halogenated SAILs such as [C12mmor][Br]. SANS analysis revealed that upon changing the counterion from salicylate to 3-hydroxy-2-naphthoate, the structure changed from prolate ellipsoidal micelles to large unilamellar vesicles. Also, increasing the concentration in the case of [C12mmor][Sal] resulted in a lower aggregation number.
Collapse
Affiliation(s)
- Ravi A Viradiya
- Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, CHARUSAT University, Changa 388421, Gujarat, India
| | - Niraj Patel
- Organic Chemistry Department, Institute of Science and Technology for Advanced Research (ISTAR), The CVM University, Vallabh Vidyanagar, Anand 388120, Gujarat, India
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Center (BARC), Trombay, Mumbai 400085, India
| | - Vaibhav K Patel
- Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, CHARUSAT University, Changa 388421, Gujarat, India
| | - Sanjay H Panjabi
- Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, CHARUSAT University, Changa 388421, Gujarat, India
| |
Collapse
|
2
|
Yu S, Lu S, Xing J. The regulation of ethanol in reaction medium on the properties of nanogels prepared by photopolymerization at 532 nm. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
3
|
Wu P, Xue T, Liu G, Li X, Peng Z, Zhou Q, Qi T. Interfacial behavior and micellization of binary surfactant mixtures in the concentrated sodium aluminate solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116530] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
4
|
El Seoud OA, Keppeler N, Malek NI, Galgano PD. Ionic Liquid-Based Surfactants: Recent Advances in Their Syntheses, Solution Properties, and Applications. Polymers (Basel) 2021; 13:1100. [PMID: 33808369 PMCID: PMC8036849 DOI: 10.3390/polym13071100] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/16/2022] Open
Abstract
The impetus for the expanding interest in ionic liquids (ILs) is their favorable properties and important applications. Ionic liquid-based surfactants (ILBSs) carry long-chain hydrophobic tails. Two or more molecules of ILBSs can be joined by covalent bonds leading, e.g., to gemini compounds (GILBSs). This review article focuses on aspects of the chemistry and applications of ILBSs and GILBSs, especially in the last ten years. Data on their adsorption at the interface and micelle formation are relevant for the applications of these surfactants. Therefore, we collected data for 152 ILBSs and 11 biamphiphilic compounds. The head ions of ILBSs are usually heterocyclic (imidazolium, pyridinium, pyrrolidinium, etc.). Most of these head-ions are also present in the reported 53 GILBSs. Where possible, we correlate the adsorption/micellar properties of the surfactants with their molecular structures, in particular, the number of carbon atoms present in the hydrocarbon "tail". The use of ILBSs as templates for the fabrication of mesoporous nanoparticles enables better control of particle porosity and size, hence increasing their usefulness. ILs and ILBSs form thermodynamically stable water/oil and oil/water microemulsions. These were employed as templates for (radical) polymerization reactions, where the monomer is the "oil" component. The formed polymer nanoparticles can be further stabilized against aggregation by using a functionalized ILBS that is co-polymerized with the monomers. In addition to updating the literature on the subject, we hope that this review highlights the versatility and hence the potential applications of these classes of surfactants in several fields, including synthesis, catalysis, polymers, decontamination, and drug delivery.
Collapse
Affiliation(s)
- Omar A. El Seoud
- Institute of Chemistry, The University of São Paulo, São Paulo 05508-000, Brazil; (N.K.); (P.D.G.)
| | - Nicolas Keppeler
- Institute of Chemistry, The University of São Paulo, São Paulo 05508-000, Brazil; (N.K.); (P.D.G.)
| | - Naved I. Malek
- Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology, Surat 395 007, Gujarat, India;
| | - Paula D. Galgano
- Institute of Chemistry, The University of São Paulo, São Paulo 05508-000, Brazil; (N.K.); (P.D.G.)
| |
Collapse
|
5
|
Synthesis, physicochemical properties and biological activities of novel alkylphosphocholines with foscarnet moiety. Bioorg Chem 2020; 104:104224. [PMID: 32892068 DOI: 10.1016/j.bioorg.2020.104224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 11/20/2022]
Abstract
A series of alkylphosphocholines with foscarnet moiety was synthesized. The structure of these zwitterionic amphiphiles was modified in both polar and non-polar parts of surfactant molecule. Investigations of physicochemical properties are represented by the determination of critical micelle concentration, the surface tension value at the cmc and the surface area per surfactant head group utilising surface tension measurements. Hydrodynamic diameter of surfactant micelles was determined using the dynamic light scattering technique. Alkylphosphocholines exhibit significant cytotoxic, anticandidal (Candida albicans) and antiamoebal (Acanthamoeba spp. T4 genotype) activity. The relationship between the structure, physicochemical properties and biological activity of the tested compounds revealed that lipophilicity has a significant influence on biological activity of the investigated surfactants. More lipophilic alkylphosphocholines with octadecyl chains show cytotoxic activity against cancer cells which is higher than that of the compounds with shorter alkyl chains. The opposite situation was observed in case of anticandidal and antiamoebal activity of these surfactants. The most active compounds were found to have pentadecyl chains. The foscarnet analogue of miltefosine C15-PFA-C showed the highest anticandidal activity. The minimum value of anticandidal activity of this compound is 1,4 μM thus representing the highest anticandidal activity found within the group of alkylphosphocholines.
Collapse
|
6
|
Alkyl-carbon chain length of two distinct compounds and derivatives are key determinants of their anti-Acanthamoeba activities. Sci Rep 2020; 10:6420. [PMID: 32286337 PMCID: PMC7156471 DOI: 10.1038/s41598-020-62934-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 03/05/2020] [Indexed: 02/06/2023] Open
Abstract
The opportunistic pathogen, Acanthamoeba castellanii is the causative agent for the sight threatening infection Acanthamoeba keratitis (AK). It is commonly associated with contact lens wearers, and prevalence is increasing at an alarming rate due to an inadequate preventive strategy to protect the lens from this protist. This problem is compounded by the lack of an effective acanthamoebocide, particularly with cysticidal activity in the contact lens solutions. We have used cytotoxicity assays and a variety of biophysical approaches to show that two molecules with tails made of alkyl carbon, alkylphosphocholines (APCs) and quaternary ammonium compounds (QACs) had significant chain-length dependent efficacy against A. castellanii trophozoites, the latter producing death via permeabilization, and DNA complexing. QACs were more effective than APCs and had activity against cysts. Conversely, the QAC with 12 alkyl carbon chain, was non toxic, its presence increased A. castellanii trophozoites biomass and delayed encystation by 96 h. Interestingly, it was unable to induce excystation and increased trophozoite sensitivity to APC16. These results present a mono- and multi-inhibitor management strategy effective against trophozoites and cysts that may be useful for formulating into contact lense cleaning solutions and reducing AK incidence.
Collapse
|
7
|
Pisárčik M, Lukáč M, Jampílek J, Bilka F, Bilková A, Pašková Ľ, Devínsky F, Horáková R, Opravil T. Silver nanoparticles stabilised with cationic single-chain surfactants. Structure-physical properties-biological activity relationship study. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.042] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
8
|
Cuccovia IM, da Silva Lima F, Chaimovich H. Counting ions and other nucleophiles at surfaces by chemical trapping. Biophys Rev 2017; 9:617-631. [PMID: 28852984 PMCID: PMC5662041 DOI: 10.1007/s12551-017-0299-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 07/27/2017] [Indexed: 12/30/2022] Open
Abstract
The interfaces of membranes and other aggregates are determined by the polarity, electrical charge, molecular volume, degrees of motional freedom and packing density of the head groups of the amphiphiles. These properties also determine the type of bound ion (ion selectivity) and its local density, i.e. concentration defined by choosing an appropriate volume element at the aggregate interface. Bulk and local ion concentrations can differ by orders of magnitude. The relationships between ion (or other compound) concentrations in the bulk solvent and in the interface are complex but, in some cases, well established. As the local ion concentration, rather than that in the bulk, controls a variety of properties of membranes, micelles, vesicles and other objects of theoretical and applied interests, measurement of local (interfacial, bound) ion concentrations is of relevance for understanding and characterizing such aggregates. Many experimental methods for estimating ion distributions between the bulk solution and the interface provide indirect estimates because they are based on concentration-dependent properties, rather than concentration measurements. Dediazoniation, i.e. the loss of N2, of a substituted diazophenyl derivative provides a tool for determining the number of nucleophiles (including neutral or negatively charged ions) surrounding the diazophenyl derivative prior to the dediazoniation event. This reaction, defined as chemical trapping, and the appropriate reference points obtained in bulk solution allow direct measurements of local concentrations of a variety of nucleophiles at the surface of membranes and other aggregates. Here we review our contributions of our research group to the use, and understanding, of this method and applications of chemical trapping to the description of local concentrations of ions and other nucleophiles in micelles, reverse micelles, vesicles and solvent mixtures. Among other results, we have shown that interfacial water determines micellar shape, zwitterionic vesicle-forming amphiphiles display ion selectivity and urea does not accumulate at micellar interfaces. We have also shown that reaction products can be predicted from the composition of the initial state, even in non-ideal solvent mixtures, supporting the usefulness of chemical trapping as a method to determine local concentrations. In addition, we have analysed the mechanism of dediazoniation, both on theoretical and experimental basis, and concluded that the formation of a free phenyl cation is not a necessary part of the reaction pathway.
Collapse
Affiliation(s)
- Iolanda Midea Cuccovia
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil.
| | - Filipe da Silva Lima
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, Recife, Brazil
| | - Hernan Chaimovich
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| |
Collapse
|
9
|
Timko L, Fischer-Fodor E, Garajová M, Mrva M, Chereches G, Ondriska F, Bukovský M, Lukáč M, Karlovská J, Kubincová J, Devínsky F. Synthesis of structural analogues of hexadecylphosphocholine and their antineoplastic, antimicrobial and amoebicidal activity. Eur J Med Chem 2015; 93:263-73. [DOI: 10.1016/j.ejmech.2015.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 01/09/2015] [Accepted: 02/10/2015] [Indexed: 12/23/2022]
|
10
|
Gradziel CS, Wang Y, Stec B, Redfield AG, Roberts MF. Cytotoxic amphiphiles and phosphoinositides bind to two discrete sites on the Akt1 PH domain. Biochemistry 2014; 53:462-72. [PMID: 24383815 DOI: 10.1021/bi401720v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The mechanism of binding of two promising anticancer agents (the cytotoxic alkylphospholipids perifosine and miltefosine) to the Akt PH domain is investigated by high-resolution field-cycling (31)P nuclear magnetic resonance (NMR) spectroscopy using a spin-labeled recombinant PH domain. These results strongly indicate that there are two discrete amphiphile binding sites on the domain: (i) the cationic site that binds phosphoinositides and some alkylphospholipids and (ii) a second site that is occupied by only the alkylphospholipids. The identification of this second site for amphiphiles on the Akt1 PH domain provides a new target for drug development as well as insights into the regulation of the activity of the intact Akt1 protein. The field-cycling NMR methodology could be used to define discrete phospholipid or amphiphile binding sites on a wide variety of peripheral membrane proteins.
Collapse
Affiliation(s)
- Cheryl S Gradziel
- Department of Chemistry, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | | | | | | | | |
Collapse
|
11
|
Lukáč M, Mrva M, Garajová M, Mojžišová G, Varinská L, Mojžiš J, Sabol M, Kubincová J, Haragová H, Ondriska F, Devínsky F. Synthesis, self-aggregation and biological properties of alkylphosphocholine and alkylphosphohomocholine derivatives of cetyltrimethylammonium bromide, cetylpyridinium bromide, benzalkonium bromide (C16) and benzethonium chloride. Eur J Med Chem 2013; 66:46-55. [PMID: 23792315 DOI: 10.1016/j.ejmech.2013.05.033] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 05/21/2013] [Accepted: 05/22/2013] [Indexed: 01/29/2023]
Abstract
A series of alkylphosphocholine and alkylphosphohomocholine derivatives of cetyltrimethylammonium bromide, cetylpyridinium bromide, benzalkonium bromide (C16) and benzethonium chloride have been synthesized. Their physicochemical properties were also investigated. The critical micelle concentration (cmc), the surface tension value at the cmc (γcmc), and the surface area at the surface saturation per head group (Acmc) were determined by means of surface tension measurements. The prepared compounds exhibit significant cytotoxic, antifungal and antiprotozoal activities. Alkylphosphocholines and alkylphosphohomocholines possess higher antifungal activity against Candida albicans in comparison with quaternary ammonium compounds in general. However, quaternary ammonium compounds exhibit significantly higher activity against human tumor cells and pathogenic free-living amoebae Acanthamoeba lugdunensis and Acanthamoeba quina compared to alkylphosphocholines. The relationship between structure, physicochemical properties and biological activity of the tested compounds is discussed.
Collapse
Affiliation(s)
- Miloš Lukáč
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, 832 32 Bratislava, Slovakia.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Pisárčik M, Polakovičová M, Lukáč M, Devínsky F, Pupák M. Molecular structure–surface property relationships for heterocyclic and dipropylamino derivatives of hexadecylphosphocholine and cetyltrimethylammonium bromide in NaBr and salt-free aqueous solutions. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.05.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
13
|
de Souza TP, Chaimovich H, Fahr A, Schweitzer B, Neto AA, Cuccovia IM. Interfacial concentrations of chloride and bromide in zwitterionic micelles with opposite dipoles: Experimental determination by chemical trapping and a theoretical description. J Colloid Interface Sci 2012; 371:62-72. [DOI: 10.1016/j.jcis.2011.12.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 12/26/2011] [Accepted: 12/27/2011] [Indexed: 11/26/2022]
|
14
|
Relationship between aggregation properties and antimicrobial activities of alkylphosphocholines with branched alkyl chains. Int J Pharm 2012; 423:247-56. [DOI: 10.1016/j.ijpharm.2011.11.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Revised: 11/29/2011] [Accepted: 11/30/2011] [Indexed: 11/18/2022]
|
15
|
Solubilisation of griseofulvin and rutin in aqueous micellar solutions of gemini and heterogemini surfactants and their mixtures. Eur J Pharm Sci 2011; 44:194-9. [DOI: 10.1016/j.ejps.2011.07.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 06/29/2011] [Accepted: 07/20/2011] [Indexed: 11/22/2022]
|
16
|
Zhang L, Lv X, Zhu Y, Zhang J, Wang H, Tan Y. Synthesis and properties of new polymeric surfactant with quaternary ammonium salt. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2482-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|