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Sarangi AN, Gupta AN. Impedance Spectroscopy Unveiled the Surfactant-Induced Unfolding and Subsequent Refolding of Human Serum Albumin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39189867 DOI: 10.1021/acs.langmuir.4c01886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Protein-surfactant interaction is a dynamic interplay of electrostatic and hydrophobic forces that ensues from the folding of a protein. We employ impedance spectroscopy (IS), a label-free method, to investigate the unfolding and refolding of human serum albumin (HSA), a globular plasma protein, in the presence of two surfactants: polysorbate-20 (Tween-20), a nonionic surfactant, and sodium dodecyl sulfate (SDS), an anionic surfactant. The equivalent electrical analog circuit was predicted from impedance spectra of HSA in an aqueous solution at physiological pH and room temperature, focusing on varying the concentration of codissolved surfactants. A change in the dielectric constant (ε') and ionic conductivity (κ) is observed by comparing the surfactant-treated protein samples to the bare surfactant solutions to assess the conformational changes induced by surfactants in HSA. Far-UV circular dichroism analysis revealed a decrease in α-helices and an increase in β-sheets and random coils upon SDS addition, which were reversed by Tween-20. Dynamic light scattering supported the findings by measuring changes in the hydrodynamic diameter (dh) of HSA. Unfolding and refolding of HSA with surfactants were also observed through photoluminescence spectroscopy by examining the microenvironment surrounding the single tryptophan (W) within the protein, and the thermodynamic parameters were obtained using the modified Stern-Volmer equation. Our research explores the intriguing domain of protein-surfactant interactions, offering insights with promising applications across diverse biological processes and IS as a suitable alternative technique for investigating protein conformational changes by studying the electrical response of the samples.
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Affiliation(s)
- Akshay Narayan Sarangi
- Biophysics and Soft Matter Laboratory, Department of Physics, IIT Kharagpur, Kharagpur 721302, India
| | - Amar Nath Gupta
- Biophysics and Soft Matter Laboratory, Department of Physics, IIT Kharagpur, Kharagpur 721302, India
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Dyagala S, Mukherjee N, Halder S, Charaya H, Muzaffar-Ur-Rehman M, Murugesan S, Chakraborty S, Chatterjee T, Saha SK. Presenting a new fluorescent probe, methyl(10-phenylphenanthren-9-yl)sulfane sensitive to the polarity and rigidity of the microenvironment: applications toward microheterogeneous systems. RSC Adv 2024; 14:25865-25888. [PMID: 39156745 PMCID: PMC11328280 DOI: 10.1039/d4ra05565a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Accepted: 08/06/2024] [Indexed: 08/20/2024] Open
Abstract
A molecule, methyl(10-phenylphenanthren-9-yl)sulfane (MPPS), with a straightforward structure, has been synthesized, characterized, and explored as a new fluorescent probe for microheterogeneous systems. The photophysical properties of MPPS have been studied through experimental and theoretical calculations using the range-separated hybrid functional CAM-B3LYP in conjunction with a 6-311++g(d,p) basis set. Theoretical calculations show that the freely rotating phenyl ring forms a 94° dihedral angle with the phenanthrene ring in the ground state. Experimentally found two absorption bands correspond to the n → π* and π → π* transitions supported by the frontier molecular orbital calculations. Two excited singlet states, E-1 and E-2 (the former being more stable than the latter in the gas phase), exist with dihedral angles between the phenyl and phenanthrene rings as 142° and 133°, respectively, in the gas phase. Two emitting states in a condensed medium of varying polarities are supported by the steady-state fluorescence and fluorescence intensity decay data. Emission energies, fluorescence intensities, and excited singlet state lifetimes change with the polarity of the solvents. To support that the free rotation in the molecule is responsible for these changes, the fluorescence properties of another molecule, methyl(10-(o-tolyl)phenanthren-9-yl)sulfane (MTPS), with restricted rotation of the substituted benzene, i.e., o-tolyl ring have been studied. The fast-intensity decay component of MPPS is ascribed to the conformer in the E-1 state. The molecule has proved to be an excellent polarity probe explored to determine the critical micelle concentrations (cmc) values of different surfactants, which agree well with the literature reports. Different regions of binding isotherm (specific, non-cooperative, cooperative, and massive binding) of a gemini surfactant, 12-6-12,2Br- with bovine serum albumin (BSA) have been successfully demonstrated by the steady-state and time-resolved fluorescence and fluorescence anisotropic properties of MPPS. Docking results show that MPPS resides in the hydrophobic pocket of BSA. The fluorescence quenching of BSA by MPPS reveals the location of Trp residues of BSA. Thus, a polarity and molecular rigidity-sensitive fluorescent molecule, MPPS has been presented here that can potentially be used to monitor the changes in the microenvironment of biomolecules in different processes.
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Affiliation(s)
- Shalini Dyagala
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus Hyderabad Telangana 500078 India +91-40-66303643 +91-40-66303-680
| | - Nilanjana Mukherjee
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus Hyderabad Telangana 500078 India +91-40-66303643 +91-40-66303-680
| | - Sayantan Halder
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus Hyderabad Telangana 500078 India +91-40-66303643 +91-40-66303-680
| | - Heena Charaya
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Pilani Campus Rajasthan 333031 India +91 1596 515716
| | - Mohammed Muzaffar-Ur-Rehman
- Department of Pharmacy, Birla Institute of Technology & Science (BITS) Pilani, Pilani Campus Rajasthan 333031 India
| | - Sankaranarayanan Murugesan
- Department of Pharmacy, Birla Institute of Technology & Science (BITS) Pilani, Pilani Campus Rajasthan 333031 India
| | - Shamik Chakraborty
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Pilani Campus Rajasthan 333031 India +91 1596 515716
| | - Tanmay Chatterjee
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus Hyderabad Telangana 500078 India +91-40-66303643 +91-40-66303-680
| | - Subit Kumar Saha
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus Hyderabad Telangana 500078 India +91-40-66303643 +91-40-66303-680
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Katari O, Kumar K, Bhamble S, Jain S. Gemini surfactants as next-generation drug carriers in cancer management. Expert Opin Drug Deliv 2024; 21:1029-1051. [PMID: 39039919 DOI: 10.1080/17425247.2024.2384037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 07/21/2024] [Indexed: 07/24/2024]
Abstract
INTRODUCTION Gemini surfactants (GS) are an elite class of amphiphilic molecules that have shown up as a potential candidate in the field of drug delivery because of their exceptional physicochemical properties. They comprise two hydrophilic headgroups connected by an adaptable spacer and hydrophobic tails that has shown promising results in delivering different therapeutic agents to cancer cells at preclinical level. However further studies are in demand to unlock the full potential of GS in this field. AREAS COVERED This review summarizes the new advancements in GS as drug carriers in cancer therapy, their capacity to overcome conventional shortcomings and the demand for innovative approaches in disease treatment. A detailed list of GS-based formulations along with a brief description on oligomeric surfactants have also been provided in this review. This article summarizes data from studies identified through literature database searches including PubMed and Google Scholar (2010-2023). EXPERT OPINION There are major challenges that need to be addressed in this field which restrict their progression toward clinical phase. Further research can focus on developing a theranostic system that can provide simultaneous real-time monitoring along with treatment care. Nevertheless, ensuring the safety parameters of these nanocarriers followed by their regulatory approval is a time-consuming and expensive process. A collaborative approach between regulatory bodies, research institutions, and pharmaceutical companies can speed up the process in the upcoming years.
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Affiliation(s)
- Oly Katari
- Department of Pharmaceutics, Centre for Pharmaceutical Nanotechnology, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
| | - Keshav Kumar
- Department of Pharmaceutics, Centre for Pharmaceutical Nanotechnology, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
| | - Shrushti Bhamble
- Department of Pharmaceutics, Centre for Pharmaceutical Nanotechnology, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
| | - Sanyog Jain
- Department of Pharmaceutics, Centre for Pharmaceutical Nanotechnology, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
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Mechken KA, Menouar M, Talbi Z, Saidi-Besbes S, Belkhodja M. Self-assembly and antimicrobial activity of cationic gemini surfactants containing triazole moieties. RSC Adv 2024; 14:19185-19196. [PMID: 38882484 PMCID: PMC11177579 DOI: 10.1039/d4ra02177k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 06/06/2024] [Indexed: 06/18/2024] Open
Abstract
1,2,3-Triazole-based gemini bis-quaternary ammonium surfactants with varying hydrophobic chain length and ethylene or butylene spacers were synthesized and characterized. Their surface and aggregation properties were analyzed using tensiometry and conductimetry. The gemini surfactants showed significantly lower CMC values compared to their single-tail counterparts and conventional gemini surfactants described in the literature. The micellization and surface adsorption processes in water can be tailored according to the hydrophobic chain and the spacer length and were substantially improved by the presence of the heterocycle. These surfactants are active against various Gram-positive and Gram-negative bacterial stains, as well as fungi. The gemini surfactant with tetradecyl chain and ethylene spacer (Bis 14-2-14) exhibited the highest activity against all investigated microbial strains.
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Affiliation(s)
- Karima Amel Mechken
- Université Oran1, Laboratoire de Synthèse Organique Appliquée (LSOA), Département de Chimie, Faculté des Sciences Exactes et Appliquées BP 1524 ELMnaouer 31000 Oran Algeria
- Université Oran 2, Institut de Maintenance et de Sécurité Industrielle 31000 Oran Algeria
| | - Mohammed Menouar
- Université Oran 1, Laboratoire de Biotoxicologie Expérimentale, Biodépollution et Phytoremédiation 31000 Oran Algeria
| | - Zahera Talbi
- Université Oran 2, Institut de Maintenance et de Sécurité Industrielle 31000 Oran Algeria
| | - Salima Saidi-Besbes
- Université Oran1, Laboratoire de Synthèse Organique Appliquée (LSOA), Département de Chimie, Faculté des Sciences Exactes et Appliquées BP 1524 ELMnaouer 31000 Oran Algeria
| | - Moulay Belkhodja
- Université Oran 1, Laboratoire de Biotoxicologie Expérimentale, Biodépollution et Phytoremédiation 31000 Oran Algeria
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Sosa MV, Hussain K, Prieto ED, Da Ros T, Shah MR, Wolcan E. The effect of water in THF/water mixtures on CMC, aggregation sizes, and fluorescence quenching of a new calix[4]resorcinarene macrocycle. Phys Chem Chem Phys 2024; 26:11933-11944. [PMID: 38572727 DOI: 10.1039/d4cp00687a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
This study explores how water content modulates the self-assembly and fluorescence behavior of a novel calixarene, C1. C1 forms large, flattened structures in pure THF, but water addition triggers a transition to smaller, unimodal clusters. A critical micellar concentration (CMC) is identified, decreasing with increasing water content. Fluorescence quenching is observed upon water addition, attributed to nonradiative deactivation. These findings highlight water as a key regulator of C1's assembly and fluorescence, paving the way for further development of water-responsive calixarene systems.
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Affiliation(s)
- María Virginia Sosa
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
| | - Kashif Hussain
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, 75270, Karachi, Pakistan
| | - Eduardo D Prieto
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
- Departamento de Cs. Biológicas, Facultad de Ciencias Exactas (UNLP), Instituto Ciencias de la Salud, Universidad Nacional Arturo Jauretche (UNAJ), Argentina
| | - Tatiana Da Ros
- INSTM, Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - M Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, 75270, Karachi, Pakistan
| | - Ezequiel Wolcan
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina.
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Khodsiani M, Kianmehr Z, Brycki B, Szulc A, Mehrbod P. Evaluation of the antiviral potential of gemini surfactants against influenza virus H1N1. Arch Microbiol 2023; 205:184. [PMID: 37039867 PMCID: PMC10088587 DOI: 10.1007/s00203-023-03478-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 03/09/2023] [Indexed: 04/12/2023]
Abstract
Influenza A virus (IAV) affects human health worldwide as a high-risk disease. It can neither be easily controlled by current vaccines and nor be treated by conventional drugs. Gemini surfactants (GS) have shown several properties including antiviral activity. In this study, the antiviral capacity of some GS compounds with different levels of hydrophobicity was examined. The 50% cytotoxic (CC50) and non-cytotoxic (NCTC) concentrations of the compounds were determined by MTT method. The NCTCs, the same as effective concentrations (EC50s), were tested for the antiviral capacity against IAV in different combination treatments for 1 h incubation on MDCK cells. The HA and MTT assays were used to evaluate the virus titer and cell viabilities, respectively. The hemolytic activity of the compounds was also assessed using an HA inhibition assay. To evaluate the apoptotic effect of GS compounds, Annexin V-PI kit was used. The HA titers decreased between 1-6.5 logs, 1-4.5 logs, and 1-5.5 logs in simultaneous, pre- and post-penetration combination treatments, respectively. The cell viability values in all combination treatments were favorable. The HI assay indicated the hemolytic potential of GSs and their physical interaction with viral HA. The apoptosis test results highlighted anti-apoptotic capacity of the GS compounds alone and in the presence of influenza virus especially for the hydrophobic ones. Gemini surfactants were generally more efficacious in simultaneous treatment. Their antiviral potential may be attributed to their physical interaction with viral membrane or HA glycoprotein that disrupts viral particle or blocks viral entry to the cell and inhibits its propagation.
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Affiliation(s)
- Mehrnaz Khodsiani
- Department of Biochemistry, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
| | - Zahra Kianmehr
- Department of Biochemistry, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Bogumil Brycki
- Department of Bioactive Compounds, Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
| | - Adrianna Szulc
- Department of Bioactive Compounds, Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
| | - Parvaneh Mehrbod
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran.
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Guo Z, Bai G, Zhao W, Yang L, Du T, Zhuo K, Wang J, Wang Y. Activation and Inhibition of Isomerization of a Cationic Azobenzene Surfactant in the Large Void Space of Polyglycerol Dendron Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4015-4025. [PMID: 36897316 DOI: 10.1021/acs.langmuir.2c03373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Owing to the unique geometric structure of dendritic amphiphiles with voluminous dendrons, their micelles can harbor a large void space, which provides a new research focus and approach for micellar functionalization. In this work, we used the void space to construct a UV responsive micelle system of the mixed dendritic amphiphile (C12-(G3)2) and cationic azobenzene surfactant (C4AzoTAB). The synthesized C12-(G3)2 that possesses double third generation polyglycerol (PG) dendrons and a single alkyl chain is expected to highlight the large void space within the inside of the micelles. Thus, the aims of this work are to achieve the isomerization of C4AzoTAB in situ and to deeply understand the intermolecular interaction in the mixed micelles. The effect of the large void room with a wall decorated with the ether oxygen atoms on the isomerization of C4AzoTAB was studied by isomerization kinetics, conductivity measurements, isothermal titration calorimetry (ITC), and 1H NMR and 2D NOESY spectroscopies. The isomerization behavior of C4AzoTAB in C12-(G3)2 micelles was presented in terms of its kinetic constant, counterionic association, interaction enthalpy, and position and orientation of C4AzoTAB. The results of NMR and conductivity show that the quaternary ammonium group of C4AzoTAB situates on the surface of the mixed micelles with C12-(G3)2 both before and after UV-irradiation, while the position of azobenzene group in C12-(G3)2 micelles depends on its conformation. The C12-(G3)2 micelles can inhibit the UV response of the trans-isomer and activate the thermal relaxation of the cis-isomer, which has a potential application in the field of light-controlled smart nanocarriers.
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Affiliation(s)
- Zhijun Guo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Guangyue Bai
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Wenqi Zhao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Ling Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Tingru Du
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jianji Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yujie Wang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, Henan 453003, P. R. China
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Singh SK, Yeboah A, Bu W, Sun P, Paige MF. Physicochemical Properties of Monolayers of a Gemini Surfactant with a Minimal-Length Spacer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:16004-16013. [PMID: 36521073 DOI: 10.1021/acs.langmuir.2c02462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Fundamental physical chemical properties of monolayers formed from a new anionic gemini surfactant with a minimal-length (single-bond) spacer unit have been investigated at the air-water interface and compared with those of monolayers formed from affiliated comparator surfactants. The minimal spacer surfactant, dubbed C18-0-C18, exhibited strikingly different packing characteristics from an anionic gemini surfactant with a comparatively bulkier headgroup, including the formation of close-packed, crystalline films, and shared similar characteristics to simple fatty acid-based monolayers. Monolayers of C18-0-C18 also exhibited good stability at the air-water interface and transferred with reasonable efficiency to solid substrates, although the film integrity was compromised during the transfer. Results from this work suggest that the single-bond spacer approach might be more broadly useful for designing gemini surfactants that pack efficiently into ordered monolayers.
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Affiliation(s)
- Srikant Kumar Singh
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N 5C9, Canada
| | - Alfred Yeboah
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N 5C9, Canada
| | - Wei Bu
- NSF's ChemMatCARS, Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Pan Sun
- NSF's ChemMatCARS, Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Matthew F Paige
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N 5C9, Canada
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Fabrication of Encapsulated Gemini Surfactants. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196664. [PMID: 36235201 PMCID: PMC9573393 DOI: 10.3390/molecules27196664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/07/2022]
Abstract
(1) Background: Encapsulation of surfactants is an innovative approach that allows not only protection of the active substance, but also its controlled and gradual release. This is primarily used to protect metallic surfaces against corrosion or to create biologically active surfaces. Gemini surfactants are known for their excellent anticorrosion, antimicrobial and surface properties; (2) Methods: In this study, we present an efficient methods of preparation of encapsulated gemini surfactants in form of alginate and gelatin capsules; (3) Results: The analysis of infrared spectra and images of the scanning electron microscope confirm the effectiveness of encapsulation; (4) Conclusions: Gemini surfactants in encapsulated form are promising candidates for corrosion inhibitors and antimicrobials with the possibility of protecting the active substance against environmental factors and the possibility of controlled outflow.
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Domínguez-Arca V, Sabín J, García-Río L, Bastos M, Taboada P, Barbosa S, Prieto G. On the structure and stability of novel cationic DPPC liposomes doped with gemini surfactants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Patel B, Singh S, Parikh K, Chavda V, Hirpara D, Ray D, Aswal VK, Kumar S. Composition triggered Aggregation/Solubilization behaviour of mixed counter charged gemini Surfactants: A Multi-technique investigations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Zhao F, Wang S, Guo J, Yang Y, Wang Y, Wang Z, Shi P. Ability to Inhibit H + Transmission of Gemini Surfactants with Different Chain Lengths under Different Ca 2+ Circumstances. ACS OMEGA 2022; 7:20768-20778. [PMID: 35755347 PMCID: PMC9219049 DOI: 10.1021/acsomega.2c01253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
To study the ability to inhibit ion transmission of the Gemini surfactant under different Ca2+ circumstances, three kinds of Gemini surfactants with different alkyl chain lengths are synthesized (Cn-4-Cn, n = 12, 14, and 16), which are characterized using 1H NMR, 13C NMR, and Fourier transform infrared spectroscopy. To analyze the property of inhibition of the acid-rock reaction rate, surface tension and contact angle measurements and atomic force microscopy (AFM) results are obtained with different surfactants and under different Ca2+ concentrations. Inhibition rates with different alkyl chain lengths and an acid-etched surface morphology are also studied carefully. The result shows that all cationic Gemini surfactants significantly impact the control of the reaction rate, and the reaction rate decreased remarkably by 44.4% after adding 12-4-12. The ΔG and WA indicate that 12-4-12 has the best adsorption ability on the rock with added Ca2+ compared with the other two Gemini surfactants. It is revealed through the AFM that Ca2+ can significantly change the adsorption morphology of the surfactant. The surfactant adsorption area decreased when Ca2+ is dispersed in the solution as well. These two phenomena can lead to the reduced ability to block H+ of 14-4-14 and 16-4-16. However, the presence of Ca2+ affects the adsorption area of 12-4-12 slightly. Thus, the reaction rate, including that of 12-4-12, is almost unchanged. Because 12-4-12 is adsorbed tightly on the rock surface, H+ can only react with the rock on the unabsorbed dot, resulting in rock surface nonuniformity after being etched, which is beneficial for maintaining the conductivity of the crack.
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Affiliation(s)
- Feng Zhao
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
| | - Shibin Wang
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
| | - Jianchun Guo
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
| | - Yuheng Yang
- Downhole
Operation Company of Xibu Drilling Engineering Company, CNPC, Karamay 834000, China
| | - Yuan Wang
- Downhole
Operation Company of Xibu Drilling Engineering Company, CNPC, Karamay 834000, China
| | - Zhi Wang
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
| | - Peng Shi
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
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14
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Atika, Singh K, Chauhan S. Study of interactions of the cationic 12–2–12 Gemini surfactant with saccharides in aqueous solution: volumetric, compressibility and viscometric analysis. TENSIDE SURFACT DET 2022. [DOI: 10.1515/tsd-2021-2379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present study, the interaction behaviour of 12–2–12 Gemini surfactant in aqueous saccharide solutions (lactose and maltodextrin solutions) is investigated using density, sound velocity and viscosity measurements. The density and sound velocity data were used to determine the volume and compressibility parameters. The effects of temperature and concentration/strength of the solutions on the interaction behaviour were analysed by conductivity studies over a wide temperature (293.15–313.15) K and concentration range of the saccharides as well as of the surfactant. It was found that predominantly hydrophobic interactions together with ionic/hydrophilic interactions between 12–2–12 Gemini surfactant and the saccharides maltodextrin and lactose play a role. In addition, the structural changes in the 12–2–12 Gemini solutions induced by lactose and maltodextrin were investigated by viscosity measurements. The results confirm the observations from the volume and compressibility studies. The study of the different hydrophobic/hydrophilic interactions in the Gemini surfactant-sacharide-water mixtures are very helpful to understand the structural behaviour of Gemini surfactants in the view of their biological significance.
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Affiliation(s)
- Atika
- Department of Chemistry , Himachal Pradesh University , Summer Hill , Shimla 171005 , India
| | - Kuldeep Singh
- Department of Chemistry , MCM DAV College , Kangra (H.P.) 176001 , India
| | - Suvarcha Chauhan
- Department of Chemistry , Himachal Pradesh University , Summer Hill , Shimla 171005 , India
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15
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Roy A, Fajardie P, Lepoittevin B, Baudoux J, Lapinte V, Caillol S, Briou B. CNSL, a Promising Building Blocks for Sustainable Molecular Design of Surfactants: A Critical Review. Molecules 2022; 27:molecules27041443. [PMID: 35209231 PMCID: PMC8876098 DOI: 10.3390/molecules27041443] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 11/16/2022] Open
Abstract
Surfactants are crystallizing a certain focus for consumer interest, and their market is still expected to grow by 4 to 5% each year. Most of the time these surfactants are of petroleum origin and are not often biodegradable. Cashew Nut Shell Liquid (CNSL) is a promising non-edible renewable resource, directly extracted from the shell of the cashew nut. The interesting structure of CNSL and its components (cardanol, anacardic acid and cardol) lead to the synthesis of biobased surfactants. Indeed, non-ionic, anionic, cationic and zwitterionic surfactants based on CNSL have been reported in the literature. Even now, CNSL is absent or barely mentioned in specialized review or chapters talking about synthetic biobased surfactants. Thus, this review focuses on CNSL as a building block for the synthesis of surfactants. In the first part, it describes and criticizes the synthesis of molecules and in the second part, it compares the efficiency and the properties (CMC, surface tension, kraft temperature, biodegradability) of the obtained products with each other and with commercial ones.
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Affiliation(s)
- Audrey Roy
- Orpia Innovation, CNRS, Bâtiment Chimie Balard, 1919 Route de Mendes, 34000 Montpellier, France;
| | - Pauline Fajardie
- Institut Charles Gerhardt Montpellier (ICGM), Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (P.F.); (V.L.); (S.C.)
| | - Bénédicte Lepoittevin
- Laboratoire de Chimie Moléculaire et Thio-Organique (LCMT), Normandie Université, ENSICAEN, UNICAEN, UMR CNRS 6507, 6 Boulevard Maréchal Juin, 14050 Caen, France; (B.L.); (J.B.)
| | - Jérôme Baudoux
- Laboratoire de Chimie Moléculaire et Thio-Organique (LCMT), Normandie Université, ENSICAEN, UNICAEN, UMR CNRS 6507, 6 Boulevard Maréchal Juin, 14050 Caen, France; (B.L.); (J.B.)
| | - Vincent Lapinte
- Institut Charles Gerhardt Montpellier (ICGM), Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (P.F.); (V.L.); (S.C.)
| | - Sylvain Caillol
- Institut Charles Gerhardt Montpellier (ICGM), Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (P.F.); (V.L.); (S.C.)
| | - Benoit Briou
- Orpia Innovation, CNRS, Bâtiment Chimie Balard, 1919 Route de Mendes, 34000 Montpellier, France;
- Correspondence: ; Tel.: +33-6-32-83-21-76
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16
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Yang X, Jin X, Zhou L, Duan P, Fan Y, Wang Y. Modulating the Excited State Chirality of Dynamic Chemical Reactions in Chiral Micelles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xuefeng Yang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences No.19(A) Yuquan Road, Shijingshan District 100049 Beijing P. R. China
| | - Xue Jin
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
| | - Lili Zhou
- CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics CAS Research/Education Center for Excellence in Molecular Sciences Beijing National Laboratory for Molecular Science Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Pengfei Duan
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences No.19(A) Yuquan Road, Shijingshan District 100049 Beijing P. R. China
| | - Yaxun Fan
- CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics CAS Research/Education Center for Excellence in Molecular Sciences Beijing National Laboratory for Molecular Science Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Yilin Wang
- CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics CAS Research/Education Center for Excellence in Molecular Sciences Beijing National Laboratory for Molecular Science Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences No.19(A) Yuquan Road, Shijingshan District 100049 Beijing P. R. China
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17
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Abdulameer Salman A. Cationic carbohydrate-based surfactants derived from renewable resources: Trends in synthetic methods. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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18
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Cationic gemini surfactant properties, its potential as a promising bioapplication candidate, and strategies for improving its biocompatibility: A review. Adv Colloid Interface Sci 2022; 299:102581. [PMID: 34891074 DOI: 10.1016/j.cis.2021.102581] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 12/14/2022]
Abstract
Gemini surfactants consist of two cationic monomers of a surfactant linked together with a spacer. The specific structure of a cationic gemini surfactant is the reason for both its high surface activity and its ability to decrease the surface tension of water. The high surface activity and unique structure of gemini surfactants result in outstanding properties, including antibacterial and antifungal activity, anticorrosion properties, unique aggregation behaviour, the ability to form various structures reversibly in response to environmental conditions, and interactions with biomacromolecules such as DNA and proteins. These properties can be tailored by selecting the optimal structure of a gemini surfactant in terms of the nature and length of its alkyl substituents, spacer, and head group. Additionally, regarding their properties, comparison with their monomeric counterparts demonstrates that gemini surfactants have higher performance efficacy at lower concentrations. Hence, less material is needed, and the toxicity is lower. However, there are some limitations regarding their biocompatibility that have led researchers to develop amino acid-based and sugar-based gemini surfactants. Owing to their remarkable properties, cationic gemini surfactants are promising candidates for bioapplications such as drug delivery systems, gene carriers, and biomaterial surface modification.
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Żamojć K, Wyrzykowski D, Chmurzyński L. On the Effect of pH, Temperature, and Surfactant Structure on Bovine Serum Albumin-Cationic/Anionic/Nonionic Surfactants Interactions in Cacodylate Buffer-Fluorescence Quenching Studies Supported by UV Spectrophotometry and CD Spectroscopy. Int J Mol Sci 2021; 23:ijms23010041. [PMID: 35008466 PMCID: PMC8744808 DOI: 10.3390/ijms23010041] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/12/2021] [Accepted: 12/20/2021] [Indexed: 01/19/2023] Open
Abstract
Due to the fact that surfactant molecules are known to alter the structure (and consequently the function) of a protein, protein–surfactant interactions are very important in the biological, pharmaceutical, and cosmetic industries. Although there are numerous studies on the interactions of albumins with surfactants, the investigations are often performed at fixed environmental conditions and limited to separate surface-active agents and consequently do not present an appropriate comparison between their different types and structures. In the present paper, the interactions between selected cationic, anionic, and nonionic surfactants, namely hexadecylpyridinium chloride (CPC), hexadecyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), polyethylene glycol sorbitan monolaurate, monopalmitate, and monooleate (TWEEN 20, TWEEN 40, and TWEEN 80, respectively) with bovine serum albumin (BSA) were studied qualitatively and quantitatively in an aqueous solution (10 mM cacodylate buffer; pH 5.0 and 7.0) by steady-state fluorescence spectroscopy supported by UV spectrophotometry and CD spectroscopy. Since in the case of all studied systems, the fluorescence intensity of BSA decreased regularly and significantly under the action of the surfactants added, the fluorescence quenching mechanism was analyzed thoroughly with the use of the Stern–Volmer equation (and its modification) and attributed to the formation of BSA–surfactant complexes. The binding efficiency and mode of interactions were evaluated among others by the determination, comparison, and discussion of the values of binding (association) constants of the newly formed complexes and the corresponding thermodynamic parameters (ΔG, ΔH, ΔS). Furthermore, the influence of the structure of the chosen surfactants (charge of hydrophilic head and length of hydrophobic chain) as well as different environmental conditions (pH, temperature) on the binding mode and the strength of the interaction has been investigated and elucidated.
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20
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Yang X, Jin X, Zhou L, Duan P, Fan Y, Wang Y. Modulating the Excited State Chirality of Dynamic Chemical Reactions in Chiral Micelles. Angew Chem Int Ed Engl 2021; 61:e202115600. [PMID: 34881474 DOI: 10.1002/anie.202115600] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Indexed: 11/11/2022]
Abstract
Chirality generation and transfer is not only of critical importance in resolving the origin of biological homochirality, but also is of great significance for exploring the chirality-related functionalities in nanomaterials and supramolecular systems. Although modulating the ground state chirality in chiral nanomaterials has been widely demonstrated, it remains a big challenge to steer the excited state chirality (circularly polarized luminescence, CPL). Herein, we present a kind of chiral spherical micelles constructed by chiral cationic gemini surfactants, whose surfaces and cavities could co-assemble with hydrophilic and hydrophobic emitters concurrently. Subsequently, the hydrophilic and hydrophobic emitters could be endowed with CPL activity in the aqueous phase. Additionally, the cavities of such micelles can be regarded as the powerful chiral confined space, which could effectively modulate the excited state chirality of dynamic chemical reactions, enabling color-adjustable CPL emission.
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Affiliation(s)
- Xuefeng Yang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, 100049, Beijing, P. R. China
| | - Xue Jin
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
| | - Lili Zhou
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
| | - Pengfei Duan
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST) No.11, ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, 100049, Beijing, P. R. China
| | - Yaxun Fan
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
| | - Yilin Wang
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China.,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, 100049, Beijing, P. R. China
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21
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22
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Ba-Salem AO, Duhamel J. Synthesis and Characterization of a Pyrene-Labeled Gemini Surfactant Sensitive to the Polarity of Its Environment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:13824-13837. [PMID: 34791874 DOI: 10.1021/acs.langmuir.1c01759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The cationic gemini surfactant PyO-3-12 was designed to include two dimethyl ammonium groups, one dodecyl tail, and 1-pyrenemethyl hexyl ether tail into the structure of the surfactant. The pyrenyl label ensured that the fluorescence of pyrene could be employed to probe the behavior of PyO-3-12 at the molecular level. The introduction of the oxygen atom in the β-position to pyrene was found to be critical for restoring the sensitivity of the pyrenyl label to the polarity of its environment. The properties of PyO-3-12 were characterized in water by surface tension and a fluorescence methodology that involved the global model-free analysis (MFA) of the pyrene monomer and excimer fluorescence decays to provide quantitative information about the state (unassociated-vs-aggregated) of PyO-3-12. The MFA was combined with a fluorescence quenching study with 2,6-dinitrotoluene to determine the size of the PyO-3-12 micelles. PyO-3-12 was found to behave like a typical gemini surfactant, exhibiting a critical micelle concentration (CMC) of 0.38 (±0.05) mM and an aggregation number (Nagg) equal to 23 (±2). Besides allowing PyO-3-12 to probe the polarity of its environment, the oxygen atom in the β-position next to pyrene brought some pyrenyl labels closer to the interface between the micellar interior and the aqueous phase, in a process that increased the effective volume of the hydrophobic part of PyO-3-12. This led to an increase in the packing parameter of PyO-3-12 and, consequently, an increase in Nagg compared to the Nagg value of 14 (±0.2) obtained for Py-3-12, a gemini surfactant, whose chemical structure was similar to that of PyO-3-12 but without the oxygen in the β-position to pyrene. The methodology described in this study to prepare and characterize pyrene-labeled surfactants is general and can be applied to study any pyrene-labeled surfactant and its interactions with oppositely charged macromolecules.
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Affiliation(s)
- Abdullah O Ba-Salem
- Institute for Polymer Research, Waterloo Institute for Nanotechnology, Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Jean Duhamel
- Institute for Polymer Research, Waterloo Institute for Nanotechnology, Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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23
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Jesus CF, Alves AA, Fiuza SM, Murtinho D, Antunes FE. Mini-review: Synthetic methods for the production of cationic sugar-based surfactants. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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24
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Rzycki M, Kaczorowska A, Kraszewski S, Drabik D. A Systematic Approach: Molecular Dynamics Study and Parametrisation of Gemini Type Cationic Surfactants. Int J Mol Sci 2021; 22:ijms222010939. [PMID: 34681599 PMCID: PMC8536075 DOI: 10.3390/ijms222010939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/04/2021] [Accepted: 10/08/2021] [Indexed: 01/07/2023] Open
Abstract
The spreading of antibiotic-resistant bacteria strains is one of the most serious problem in medicine to struggle nowadays. This triggered the development of alternative antimicrobial agents in recent years. One of such group is Gemini surfactants which are massively synthesised in various structural configurations to obtain the most effective antibacterial properties. Unfortunately, the comparison of antimicrobial effectiveness among different types of Gemini agents is unfeasible since various protocols for the determination of Minimum Inhibitory Concentration are used. In this work, we proposed alternative, computational, approach for such comparison. We designed a comprehensive database of 250 Gemini surfactants. Description of structure parameters, for instance spacer type and length, are included in the database. We parametrised modelled molecules to obtain force fields for the entire Gemini database. This was used to conduct in silico studies using the molecular dynamics to investigate the incorporation of these agents into model E. coli inner membrane system. We evaluated the effect of Gemini surfactants on structural, stress and mechanical parameters of the membrane after the agent incorporation. This enabled us to select four most likely membrane properties that could correspond to Gemini’s antimicrobial effect. Based on our results we selected several types of Gemini spacers which could demonstrate a particularly strong effect on the bacterial membranes.
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Affiliation(s)
- Mateusz Rzycki
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland; (A.K.); (S.K.); (D.D.)
- Correspondence:
| | - Aleksandra Kaczorowska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland; (A.K.); (S.K.); (D.D.)
| | - Sebastian Kraszewski
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland; (A.K.); (S.K.); (D.D.)
| | - Dominik Drabik
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland; (A.K.); (S.K.); (D.D.)
- Laboratory of Cytobiochemistry, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland
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25
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Bhattarai A, Rub MA, Jaffari ZH, Saha B, Thu HT, Alghamdi YG, Kumar D. Spectroscopic and Conductometric Analyses of Ninhydrin and Threonine Reaction in Double-Headed Geminis. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03184] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ajaya Bhattarai
- Department of Chemistry, M.M.A.M.C., Tribhuvan University, Biratnagar 56613, Nepal
| | - Malik Abdul Rub
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Zeeshan Haider Jaffari
- Department of Environmental Engineering and Management, Chaoyang University of Technology, No. 168, Jifeng E. Rd, Wufeng
District, Taichung 413310, Taiwan
| | - Bidyut Saha
- Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, West Bengal, India
| | - Hoang Thi Thu
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
| | - Yousef G. Alghamdi
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Dileep Kumar
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
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26
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Legawiec KJ, Kruszelnicki M, Bastrzyk A, Polowczyk I. Rhamnolipids as Effective Green Agents in the Destabilisation of Dolomite Suspension. Int J Mol Sci 2021; 22:10591. [PMID: 34638932 PMCID: PMC8508988 DOI: 10.3390/ijms221910591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
In this paper, we describe an application of mono- and dirhamnolipid homologue mixtures of a biosurfactant as a green agent for destabilisation of a dolomite suspension. Properties of the biosurfactant solution were characterised using surface tension and aggregate measurements to prove aggregation of rhamnolipids at concentrations much lower than the critical micelle concentration. Based on this information, the adsorption process of biosurfactant molecules on the surface of the carbonate mineral dolomite was investigated, and the adsorption mechanism was proposed. The stability of the dolomite suspension after rhamnolipid adsorption was investigated by turbidimetry. The critical concentration of rhamnolipid at which destabilisation of the suspension occurred most effectively was found to be 50 mg·dm-3. By analysing backscattering profiles, solid-phase migration velocities were calculated. With different amounts of biomolecules, this parameter can be modified from 6.66 to 20.29 mm·h-1. Our study indicates that the dolomite suspension is destabilised by hydrophobic coagulation, which was proved by examining the wetting angle of the mineral surface using the captive bubble technique. The relatively low amount of biosurfactant used to destabilise the system indicates the potential application of this technology for water treatment or modification of the hydrophobicity of mineral surfaces in mineral engineering.
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Affiliation(s)
- Krzysztof Jan Legawiec
- Department of Process Engineering and Technology of Polymer and Carbon Materials, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego St. 27, 50-370 Wrocław, Poland; (M.K.); (A.B.); (I.P.)
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27
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Tian M, Zhang F, Wang L, Dong X, Zhang L, Guo X. Activity of Polyphenoloxidase in red Fuji Apples Promoted with Cationic Surfactant – Role of Surfactant Structure. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-2020-2322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this study, we observed the activity of polyphenoloxidase (PPO) in red Fuji apples in the presence of single-chained surfactants (including cetyl trimethyl ammonium bromide (CTAB), and dodecyl trimethyl ammonium bromide (DTAB)) and gemini surfactants (pentamethylene-α,ω-bis(dodecyl dimethyl ammonium bromide), octamethylene-α,ω-bis(dodecyl dimethyl ammonium bromide, dodecamethylene-α,ω-bis(dodecyl dimethyl ammonium bromide), pentamethylene-α,ω-bis(cetyl dimethyl ammonium bromide), and octamethylene-α,ω-bis(cetyl dimethyl ammonium bromide)). It was found that all these surfactants enhanced the activity of PPO in a wide range of temperature at low content. When PPO was denatured by incubating at high temperature, the surfactants caused reactivation of PPO. Compared to the single-chained surfactants, the gemini surfactants increased PPO activity at a much lower concentration. Moreover, the single-chained surfactant and the gemini surfactant acted together to further increase PPO activity, and the synergistic effect reduced the amount of surfactant used. In addition, the Michaelis-Menten constant for PPO did not change in the presence of the surfactants, suggesting the active site should remain well with the surfactants.
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Affiliation(s)
- Maozhang Tian
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC , Beijing 100083 , P.R.China
| | - Fan Zhang
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC , Beijing 100083 , P.R.China
| | - Lu Wang
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC , Beijing 100083 , P.R.China
| | - Xing Dong
- NO.2 Produce Plant, Xinjiang Oilfield Company, Petro China , Karamay 834008 , P. R. China
| | - Lifei Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou , Jiangsu , 225002 , P.R.China
| | - Xia Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou , Jiangsu , 225002 , P.R.China
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Brycki BE, Szulc A, Kowalczyk I, Koziróg A, Sobolewska E. Antimicrobial Activity of Gemini Surfactants with Ether Group in the Spacer Part. Molecules 2021; 26:molecules26195759. [PMID: 34641303 PMCID: PMC8510121 DOI: 10.3390/molecules26195759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/15/2021] [Accepted: 09/21/2021] [Indexed: 12/23/2022] Open
Abstract
Due to their large possibility of the structure modification, alkylammonium gemini surfactants are a rapidly growing class of compounds. They exhibit significant surface, aggregation and antimicrobial properties. Due to the fact that, in order to achieve the desired utility effect, the minimal concentration of compounds are used, they are in line with the principle of greenolution (green evolution) in chemistry. In this study, we present innovative synthesis of the homologous series of gemini surfactants modified at the spacer by the ether group, i.e., 3-oxa-1,5-pentane-bis(N-alkyl-N,N-dimethylammonium bromides). The critical micelle concentrations were determined. The minimal inhibitory concentrations of the synthesized compounds were determined against bacteria Escherichia coli ATCC 10536 and Staphylococcus aureus ATCC 6538; yeast Candida albicans ATCC 10231; and molds Aspergillus niger ATCC 16401 and Penicillium chrysogenum ATCC 60739. We also investigated the relationship between antimicrobial activity and alkyl chain length or the nature of the spacer. The obtained results indicate that the synthesized compounds are effective microbicides with a broad spectrum of biocidal activity.
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Affiliation(s)
- Bogumil Eugene Brycki
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University Poznan, 61-614 Poznan, Poland; (A.S.); (I.K.)
- Correspondence: ; Tel.: +48-61-829-1694
| | - Adrianna Szulc
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University Poznan, 61-614 Poznan, Poland; (A.S.); (I.K.)
| | - Iwona Kowalczyk
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University Poznan, 61-614 Poznan, Poland; (A.S.); (I.K.)
| | - Anna Koziróg
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Science, Lodz University of Technology, 90-924 Lodz, Poland;
| | - Ewelina Sobolewska
- Interdisciplinary Doctoral School of the Lodz University of Technology, Lodz University of Technology, 90-924 Lodz, Poland;
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Tian M, Chen X, Zou X, Qian Y, Liu Z, Fan Y. pH-Responsive Rheological Properties and Microstructure Transition in Mixture of Anionic Gemini/Cationic Monomeric Surfactants. Molecules 2021; 26:5013. [PMID: 34443601 PMCID: PMC8400210 DOI: 10.3390/molecules26165013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 11/22/2022] Open
Abstract
Surfactant aggregates have long been considered as a tool to improve drug delivery and have been widely used in medical products. The pH-responsive aggregation behavior in anionic gemini surfactant 1,3-bis(N-dodecyl-N-propanesulfonate sodium)-propane (C12C3C12(SO3)2) and its mixture with a cationic monomeric surfactant cetyltrimethylammonium bromide (CTAB) have been investigated. The spherical-to-wormlike micelle transition was successfully realized in C12C3C12(SO3)2 through decreasing the pH, while the rheological properties were perfectly enhanced for the formation of wormlike micelles. Especially at 140 mM and pH 6.7, the mixture showed high viscoelasticity, and the maximum of the zero-shear viscosity reached 1530 Pa·s. Acting as a sulfobetaine zwitterionic gemini surfactant, the electrostatic attraction, the hydrogen bond and the short spacer of C12C3C12(SO3)2 molecules were all responsible for the significant micellar growth. Upon adding CTAB, the similar transition could also be realized at a low pH, and the further transformation to branched micelles occurred by adjusting the total concentration. Although the mixtures did not approach the viscosity maximum appearing in the C12C3C12(SO3)2 solution, CTAB addition is more favorable for viscosity enhancement in the wormlike-micelle region. The weakened charges of the headgroups in a catanionic mixed system minimizes the micellar spontaneous curvature and enhances the intermolecular hydrogen-bonding interaction between C12C3C12(SO3)2, facilitating the formation of a viscous solution, which would greatly induce entanglement and even the fusion of wormlike micelles, thus resulting in branched microstructures and a decline of viscosity.
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Affiliation(s)
- Maozhang Tian
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Xi Chen
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Xinyuan Zou
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Yuchen Qian
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Zhang Liu
- CAS Key Laboratory of Colloid, Interface Thermodynamics, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yaxun Fan
- CAS Key Laboratory of Colloid, Interface Thermodynamics, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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30
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Zhu T, Kang W, Yang H, Li Z, Zhou B, Zhang M, Xie A, Zhang H, Sarsenbekuly B. The rheological behavior of sodium dodecyl sulfate/N-hexylamine aqueous solution at high concentrations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Kumar H, Kaur G. Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review. Front Chem 2021; 9:667941. [PMID: 34055738 PMCID: PMC8158659 DOI: 10.3389/fchem.2021.667941] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/01/2021] [Indexed: 11/13/2022] Open
Abstract
The desire of improving various processes like enhanced oil recovery (EOR), water treatment technologies, biomass extraction, organic synthesis, carbon capture etc. in which conventional surfactants have been traditionally utilized; prompted various researchers to explore the self-assembly and aggregation behavior of different kinds of surface-active molecules. Ionic liquids (ILs) with long alkyl chain present in their structure constitute the advantageous properties of surfactant and ILs, hence termed as surface-active ionic liquids (SAILs). The addition of ILs and SAILs significantly influence the surface-activity and aggregation behavior of industrially useful conventional surfactants. After a brief review of ILs, SAILs and surfactants, the prime focus is made on analyzing the self-assembly of SAILs and the mixed micellization behavior of conventional surfactants with different ILs.
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Affiliation(s)
- Harsh Kumar
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
| | - Gagandeep Kaur
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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32
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Ba-Salem AO, Duhamel J. Determination of the Aggregation Number of Pyrene-Labeled Gemini Surfactant Micelles by Pyrene Fluorescence Quenching Measurements. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6069-6079. [PMID: 33960794 DOI: 10.1021/acs.langmuir.1c00847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A cationic gemini surfactant referred to as Py-3-12 and composed of two alkylated diammonium bromide head groups, a propyl spacer, and dodecyl and 1-pyrenehexyl hydrophobic tails was synthesized. Its critical micellar concentration (CMC) was determined to equal 0.15 (±0.02) mM by surface tension and time-resolved fluorescence measurements. The state of the pyrene molecules, whether they were incorporated inside the Py-3-12 micelles or unassociated in the aqueous solution, was determined by applying the global model-free analysis (MFA) to the fluorescence decays acquired with Py-3-12 aqueous solutions. The unassociated Py-3-12 surfactants emitted as pyrene monomers and showed a long fluorescence lifetime. The excited pyrenyl groups located inside Py-3-12 micelles formed an excimer by a rapid encounter with a ground-state pyrene with an average rate constant equal to 0.69 (±0.06) ns-1. After having the photophysical properties of Py-3-12 in aqueous solution characterized, the number (Nagg) of surfactants per micelle was determined by conducting quenching experiments with dinitrotoluene (DNT). Although DNT is fairly hydrophobic, it was found to partition itself between the Py-3-12 micelles and the aqueous phase. Fluorescence quenching experiments performed on the pyrene monomer and excimer generated by the Py-3-12 aqueous solutions yielded the concentration ([Q]b) of DNT bound to the Py-3-12 micelles and the average number ⟨n⟩d of DNT quenching an excimer by diffusive encounters. A combination of steady-state and time-resolved fluorescence quenching experiments on the excimer yielded the number (⟨n⟩s) of DNT molecules that were bound to the micelles and quenched the excimer in a static manner. A plot of the sum ⟨n⟩d + ⟨n⟩s as a function of [Q]b yielded an Nagg value of 14.0 (±0.2) Py-3-12 units per micelle. This study represents the first example in the literature where Nagg is determined for a micelle, where each surfactant molecule is labeled with pyrene.
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Affiliation(s)
- Abdullah O Ba-Salem
- Department of Chemistry, Institute for Polymer Research, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Jean Duhamel
- Department of Chemistry, Institute for Polymer Research, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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33
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Neubauer D, Jaśkiewicz M, Bauer M, Olejniczak-Kęder A, Sikorska E, Sikora K, Kamysz W. Biological and Physico-Chemical Characteristics of Arginine-Rich Peptide Gemini Surfactants with Lysine and Cystine Spacers. Int J Mol Sci 2021; 22:3299. [PMID: 33804887 PMCID: PMC8036666 DOI: 10.3390/ijms22073299] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 12/11/2022] Open
Abstract
Ultrashort cationic lipopeptides (USCLs) and gemini cationic surfactants are classes of potent antimicrobials. Our recent study has shown that the branching and shortening of the fatty acids chains with the simultaneous addition of a hydrophobic N-terminal amino acid in USCLs result in compounds with enhanced selectivity. Here, this approach was introduced into arginine-rich gemini cationic surfactants. l-cystine diamide and l-lysine amide linkers were used as spacers. Antimicrobial activity against planktonic and biofilm cultures of ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.) strains and Candida sp. as well as hemolytic and cytotoxic activities were examined. Moreover, antimicrobial activity in the presence of human serum and the ability to form micelles were evaluated. Membrane permeabilization study, serum stability assay, and molecular dynamics were performed. Generally, critical aggregation concentration was linearly correlated with hydrophobicity. Gemini surfactants were more active than the parent USCLs, and they turned out to be selective antimicrobial agents with relatively low hemolytic and cytotoxic activities. Geminis with the l-cystine diamide spacer seem to be less cytotoxic than their l-lysine amide counterparts, but they exhibited lower antibiofilm and antimicrobial activities in serum. In some cases, geminis with branched fatty acid chains and N-terminal hydrophobic amino acid resides exhibited enhanced selectivity to pathogens over human cells.
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Affiliation(s)
- Damian Neubauer
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (M.J.); (M.B.); (K.S.); (W.K.)
| | - Maciej Jaśkiewicz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (M.J.); (M.B.); (K.S.); (W.K.)
| | - Marta Bauer
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (M.J.); (M.B.); (K.S.); (W.K.)
| | - Agata Olejniczak-Kęder
- Department of Histology, Faculty of Medicine, Medical University of Gdańsk, 80-211 Gdańsk, Poland;
| | - Emilia Sikorska
- Department of Organic Chemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland;
| | - Karol Sikora
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (M.J.); (M.B.); (K.S.); (W.K.)
| | - Wojciech Kamysz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (M.J.); (M.B.); (K.S.); (W.K.)
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Krishna, Parshad B, Achazi K, Böttcher C, Haag R, Sharma SK. Newer Non-ionic A 2 B 2 -Type Enzyme-Responsive Amphiphiles for Drug Delivery. ChemMedChem 2021; 16:1457-1466. [PMID: 33559331 DOI: 10.1002/cmdc.202100031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/05/2021] [Indexed: 12/29/2022]
Abstract
A new series of nonionic gemini amphiphiles have been synthesized in a multi-step chemoenzymatic approach by using a novel A2 B2 -type central core consisting of conjugating glycerol and propargyl bromide on 5-hydroxy isophthalic acid. A pair of hydrophilic monomethoxy poly(ethylene glycol) (mPEG) and hydrophobic linear alkyl chains (C12 /C15 ) were then added to the core to obtain amphiphilic architectures. The aggregation tendency in aqueous media was studied by dynamic light scattering, fluorescence spectroscopy and cryogenic transmission electron microscopy. The nanotransport potential of the amphiphiles was studied for model hydrophobic guests, that is, the dye Nile Red and the drug Nimodipine by using UV/Vis and fluorescence spectroscopy. Evaluation of the viability of amphiphile-treated A549 cells showed them to be well tolerated up to the concentrations studied. Being ester based, these amphiphiles exhibit stimuli-responsive sensitivity towards esterases, and a rupture of amphiphilic architecture was observed in the presence of immobilized Candida antarctica lipase (Novozym 435), thus facilitating release of the encapsulated guest from the aggregate.
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Affiliation(s)
- Krishna
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Badri Parshad
- Department of Chemistry, University of Delhi, Delhi, 110007, India.,Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Katharina Achazi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195, Berlin, Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstraße 36a, 14195, Berlin, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195, Berlin, Germany
| | - Sunil K Sharma
- Department of Chemistry, University of Delhi, Delhi, 110007, India
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35
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Effective cytocompatible nanovectors based on serine-derived gemini surfactants and monoolein for small interfering RNA delivery. J Colloid Interface Sci 2021; 584:34-44. [PMID: 33039681 DOI: 10.1016/j.jcis.2020.09.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/19/2020] [Accepted: 09/20/2020] [Indexed: 12/18/2022]
Abstract
Non-viral gene therapy based on gene silencing with small interfering RNA (siRNA) has attracted great interest over recent years. Among various types of cationic complexation agents, amino acid-based surfactants have been recently explored for nucleic acid delivery due to their low toxicity and high biocompatibility. Monoolein (MO), in turn, has been used as helper lipid in liposomal systems due to its ability to form inverted nonbilayer structures that enhance fusogenicity, thus contributing to higher transfection efficiency. In this work, we focused on the development of nanovectors for siRNA delivery based on three gemini amino acid-based surfactants derived from serine - (12Ser)2N12, amine derivative; (12Ser)2COO12, ester derivative; and (12Ser)2CON12, amide derivative - individually combined with MO as helper lipid. The inclusion of MO in the cationic surfactant system influences the morphology and size of the mixed aggregates. Furthermore, the gemini surfactant:MO systems showed the ability to efficiently complex siRNA, forming stable lipoplexes, in some cases clearly depending on the MO content, without inducing significant levels of cytotoxicity. High levels of gene silencing were achieved in comparison with a commercially available standard indicating that these gemini:MO systems are promising candidates as lipofection vectors for RNA interference (RNAi)-based therapies.
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36
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Synthesis of Silver Nanoparticles with Gemini Surfactants as Efficient Capping and Stabilizing Agents. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app11010154] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The scientific community has paid special attention to silver nanoparticles (AgNPs) in recent years due to their huge technological capacities, particularly in biomedical applications, such as antimicrobials, drug-delivery carriers, device coatings, imaging probes, diagnostic, and optoelectronic platforms. The most popular method of obtaining silver nanoparticles as a colloidal dispersion in aqueous solution is chemical reduction. The choice of the capping agent is particularly important in order to obtain the desired size distribution, shape, and dispersion rate of AgNPs. Gemini alkylammonium salts are named as multifunctional surfactants, and possess a wide variety of applications, which include their use as capping agents for metal nanoparticles synthesis. Because of the high antimicrobial activity of gemini surfactants, AgNPs stabilized by this kind of surfactant may possess unique and strengthened biocidal properties. The present paper presents the synthesis of AgNPs stabilized by gemini surfactants with hexadecyl substituent and variable structure of spacer, obtained via ecofriendly synthesis. UV-Vis spectroscopy and dynamic light scattering were used as analyzing tools in order to confirm physicochemical characterization of the AgNPs (characteristic UV-Vis bands, hydrodynamic diameter of NPs, polydispersity index (PDI)).
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37
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Hu R, Tang S, Mpelwa M, Jin L, Jiang Z, Feng S, Zheng Y. Study on the structure–activity relationship between the molecular structure of anionic Gemini surfactants and the rheological properties of their micelle solutions. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1843478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ruizhi Hu
- School of Petroleum Engineering, Yangtze University, Wuhan, China
| | - Shanfa Tang
- School of Petroleum Engineering, Yangtze University, Wuhan, China
- Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan, China
| | - Musa Mpelwa
- School of Petroleum Engineering, Yangtze University, Wuhan, China
| | - Lijun Jin
- School of Petroleum Engineering, Yangtze University, Wuhan, China
| | - Zhaowen Jiang
- School of Petroleum Engineering, Yangtze University, Wuhan, China
| | - Shuyun Feng
- School of Petroleum Engineering, Yangtze University, Wuhan, China
| | - Yahui Zheng
- School of Petroleum Engineering, Yangtze University, Wuhan, China
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38
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Gao T, Ma C, Wang N, Guo Z, Shi Y, Sin LT. Synthesis and Aggregation Behavior of Jellyfish-Shaped Triazine Hexamer Quaternary Ammonium Chloride Surfactant. J Oleo Sci 2020; 69:1021-1030. [PMID: 32788513 DOI: 10.5650/jos.ess20016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A novel jellyfish-shaped triazine hexamer quaternary ammonium chloride surfactant (TH12QC) was synthesized, which consisted of one triazine spacer group and six long flexible hydrophobic chains. The molecular structure and aggregation behavior of TH12QC was investigated by nuclear magnetic resonance (NMR), surface tension, electrical conductivity, dynamic light scattering (DLS), transmission electron microscope (TEM), etc. The results show that the jellyfish-shaped TH12QC has better surface activity and lower surface tension than traditional ionic and Gemini surfactants in aqueous solution. There are two inflection points in the curve of conductivity versus concentration of the TH12QC aqueous solution, which correspond to the critical aggregation concentration (CAC) and the critical micelle concentration (CMC) respectively. The existence of CAC indicates that there is a pre-aggregation process before TH12QC forms micelles. The results of DLS and TEM show that network pre-aggregation, spherical aggregation and dense spherical aggregation were observed in different concentration of TH12QC aqueous solution, and the electrostatic equilibrium of the system subtly depends on the concentration of the solution. In addition, intramolecular and intermolecular hydrogen bonding is also an important factor. This study provides a method for studying the aggregation behavior and morphology of oligomeric surfactants with rigid spacer groups.
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Affiliation(s)
- TianXu Gao
- School of Material Science and Engineering, Shenyang University of Chemical Technology
| | - Chi Ma
- School of Material Science and Engineering, Shenyang University of Chemical Technology.,Advanced Manufacturing Institute of Polymer Industry, Shenyang University of Chemical Technology
| | - Na Wang
- School of Material Science and Engineering, Shenyang University of Chemical Technology.,Advanced Manufacturing Institute of Polymer Industry, Shenyang University of Chemical Technology
| | - Zhuo Guo
- School of Material Science and Engineering, Shenyang University of Chemical Technology
| | - Ying Shi
- Advanced Manufacturing Institute of Polymer Industry, Shenyang University of Chemical Technology
| | - Lee Tin Sin
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman
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39
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An Insight View on Synthetic Protocol, Surface Activity, and Biological Aspects of Novel Biocompatible Quaternary Ammonium Cationic Gemini Surfactants. J SURFACTANTS DETERG 2020. [DOI: 10.1002/jsde.12450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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Shaheen A, Waheed Mir A. Effect of additives on mixed micellization of a phenothiazine drug promethazine hydrochloride and an ester-based pyridinium gemini surfactant. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1627882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Arifa Shaheen
- Department of Chemistry, Aligarh Muslim University , Aligarh , India
| | - Ab Waheed Mir
- Department of Chemistry, Aligarh Muslim University , Aligarh , India
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41
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Akram M, Ansari F, Qais FA, Kabir-ud-Din. Binding of cationic Cm-E2O-Cm gemini surfactants with human serum albumin and the role of β-cyclodextrin. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113365] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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42
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Narsineni L, Foldvari M. Dicationic Amino Substituted Gemini Surfactants and their Nanoplexes: Improved Synthesis and Characterization of Transfection Efficiency and Corneal Penetration In Vitro. Pharm Res 2020; 37:144. [PMID: 32666411 DOI: 10.1007/s11095-020-02836-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 04/29/2020] [Indexed: 01/01/2023]
Abstract
PURPOSE To formulate and characterize nanoparticles from m-7NH-m gemini surfactants, synthesized by a new improved method, for non-invasive gene delivery including optimization of composition for transfection efficiency and corneal penetration. METHODS A one-pot, solvent-free, DMAP-free method was developed for the synthesis of m-7NH-m (m = 12-18) gemini surfactant series. Lipoplexes (LPXs) and nanoplexes (NPXs) of gemini surfactant-plasmid DNA were formulated with and without DOPE helper lipid, respectively, at various charge ratios and characterized by dynamic light scattering and zeta potential measurements. Transfection efficiency, cellular toxicity, effect of DOPE and gene expression kinetic studies were carried out in A7 astrocytes by flow cytometry and confocal microscopy. Corneal penetration studies of 18-7NH-18 NPXs were carried out using 3D EpiCorneal® tissue model. RESULTS The new synthesis method provides a two-fold improved yield and the production of a pure species of m-7NH-m without DMAP and trimeric m-7N(m)-m surfactants as impurities. Structure and purity was confirmed by ESI-MS, 1H NMR spectroscopy and surface tension measurements. Particle size of 199.80 ± 1.83 nm ± S.D. and a zeta potential value of +30.18 ± 1.17 mV ± S.D. was obtained for 18-7NH-18 5:1 ratio NPXs showed optimum transfection efficiency (10.97 ± 0.11%) and low toxicity (92.97 ± 0.57% viability) at the 48-h peak expression. Inclusion of DOPE at 1: 0.5 and 1:1 ratios to gemini surfactant reduced transfection efficiency and increased toxicity. Treatment of EpiCorneal® tissue model showed deep penetration of up to 100 μm with 18-7NH-18 NPXs. CONCLUSION Overall, 18-7NH-18 NPXs are potential gene delivery systems for ophthalmic gene delivery and for further in vivo studies.
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Affiliation(s)
- Lokesh Narsineni
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Marianna Foldvari
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada. .,School of Pharmacy, Center for Bioengineering and Biotechnology, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada.
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43
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Kumar D, Rub MA, Asiri AM. Synthesis and characterization of geminis and implications of their micellar solution on ninhydrin and metal amino acid complex. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200775. [PMID: 32874661 PMCID: PMC7428287 DOI: 10.1098/rsos.200775] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/02/2020] [Indexed: 05/12/2023]
Abstract
In our study, three gemini dicationic surfactants with different methylene group spacer (16-6-16, 16-5-16 and 16-4-16) have been synthesized and characterized in solution by 1H NMR spectroscopic technique. The implications of gemini micellar solution on ninhydrin and metal amino acid complex ([Cu(II)-Trp]+) were performed by the means of single-beam UV-visible spectroscopy. The absorbance was noted at regular time intervals and values of rate constant (kψ ) were determined by using a computer-based program. Synthesized surfactants proved as an efficient catalyst on the interaction of ninhydrin with metal amino acid complex as compared with conventional surfactant and aqueous systems. The required description regarding the implications of gemini dicationic surfactants are provided in the text in detail. The conductivity technique was applied in order to get critical micelle concentration (cmc) of geminis in the presence and absence of reactants. Catalytic results developed in gemini dicationic surfactant system were explained effectively by pseudo-phase model. Various thermodynamic quantities, viz., activation energy, E a, activation enthalpy, ΔH #, and activation entropy, ΔS #, were obtained on interaction of ninhydrin with [Cu(II)-Trp]+ in gemini systems by applying Eyring equation. A detailed explanation about these evaluated parameters was also made.
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Affiliation(s)
- Dileep Kumar
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Malik Abdul Rub
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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44
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Manchanda P, Achazi K, Verma D, Böttcher C, Haag R, Sharma SK. Chemoenzymatic Synthesis of D-Glucitol-Based Non-Ionic Amphiphilic Architectures as Nanocarriers. Polymers (Basel) 2020; 12:E1421. [PMID: 32630598 PMCID: PMC7362011 DOI: 10.3390/polym12061421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 12/20/2022] Open
Abstract
Newer non-ionic amphiphiles have been synthesized using biocompatible materials and by following a greener approach i.e., D-glucitol has been used as a template, and hydrophobic and hydrophilic segments were incorporated on it by using click chemistry. The hydrophilic segments in turn were prepared from glycerol using an immobilized Candida antarctica lipase (Novozym-435)-mediated chemoenzymatic approach. Surface tension measurements and dynamic light scattering studies reflect the self-assembling behavior of the synthesized amphiphilic architectures in the aqueous medium. The results from UV-Vis and fluorescence spectroscopy establish the encapsulation of guests in the hydrophobic core of self-assembled amphiphilic architectures. The results of 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay indicate that the amphiphiles are well tolerated by the used A549 cell lines at all tested concentrations.
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Affiliation(s)
- Priyanka Manchanda
- Department of Chemistry, University of Delhi, Delhi-110 007, India; (P.M.); (D.V.)
| | - Katharina Achazi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany;
| | - Diksha Verma
- Department of Chemistry, University of Delhi, Delhi-110 007, India; (P.M.); (D.V.)
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstraße 36a, 14195 Berlin, Germany;
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Sunil K. Sharma
- Department of Chemistry, University of Delhi, Delhi-110 007, India; (P.M.); (D.V.)
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Domínguez-Arca V, Sabín J, Taboada P, García-Río L, Prieto G. Micellization thermodynamic behavior of gemini cationic surfactants. Modeling its adsorption at air/water interface. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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46
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YILDIRIM A, ÖZTÜRK S, TÜRKDEMİR H, KOLALI A, ATALAY BG, KOCATAŞ H. An improved isolation of trimyristin from Myristica fragrans as a renewable feedstock with assistance of novel cationic gemini surfactant. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2020. [DOI: 10.18596/jotcsa.605805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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47
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Faustino C, Martins T, Duarte N, Ribeiro MH. Self‐Assembly of Lipoaminoacids‐DNA Based on Thermodynamic and Aggregation Properties. J SURFACTANTS DETERG 2020. [DOI: 10.1002/jsde.12391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Célia Faustino
- Faculty of PharmacyResearch Institute for Medicines (iMed.ULisboa), Universidade de Lisboa Av. Prof. Gama Pinto 1649‐003 Lisbon Portugal
| | - Tiago Martins
- Faculty of PharmacyResearch Institute for Medicines (iMed.ULisboa), Universidade de Lisboa Av. Prof. Gama Pinto 1649‐003 Lisbon Portugal
| | - Noélia Duarte
- Faculty of PharmacyResearch Institute for Medicines (iMed.ULisboa), Universidade de Lisboa Av. Prof. Gama Pinto 1649‐003 Lisbon Portugal
| | - Maria H. Ribeiro
- Faculty of PharmacyResearch Institute for Medicines (iMed.ULisboa), Universidade de Lisboa Av. Prof. Gama Pinto 1649‐003 Lisbon Portugal
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48
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Facile microwave-assisted preparation of an ester-based cationic gemini surfactant for the improved micellar synthesis of aminocyanopyridines. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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49
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Aggrawal R, Kumari S, Gangopadhyay S, Saha SK. Role of Different States of Solubilized Water on Solvation Dynamics and Rotational Relaxation of Coumarin 490 in Reverse Micelles of Gemini Surfactants, Water/12- s-12.2Br - ( s = 5, 6, 8)/ n-Propanol/Cyclohexane. ACS OMEGA 2020; 5:6738-6753. [PMID: 32258909 PMCID: PMC7114611 DOI: 10.1021/acsomega.0c00035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/04/2020] [Indexed: 06/07/2023]
Abstract
The present study demonstrates how the different states of solubilized water viz. quaternary ammonium headgroup-bound, bulklike, counterion-bound, and free water in reverse micelles of a series of cationic gemini surfactants, water/12-s-12 (s = 5, 6, 8).2Br-/n-propanol/cyclohexane, control the solvation dynamics and rotational relaxation of Coumarin 490 (C-490) and microenvironment of the reverse micelles. The relative number of solubilized water molecules of a given state per surfactant molecule decides major and minor components. A rapid increase in the number of bulklike water molecules per surfactant molecule as compared to the slow increase in the number of each of headgroup- and counterion-bound water molecules per surfactant molecule with increasing water content (W o) in a given reverse micellar system is responsible for the increase in the rate of solvation and rotational relaxation of C-490. The increase in the number of counterion-bound water molecules per surfactant molecule and the concomitant decrease in the number of bulklike water molecules per surfactant molecule with increasing spacer chain length of gemini surfactants at a given W o are ascribed to the slower rates of both solvation and rotational relaxation. Relative abundances of different states of water have a role on the microenvironment of the reverse micelles as well. Thus, a comprehensive effect of different states of water on dynamics in complex biomimicking systems has been presented here.
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Affiliation(s)
- Rishika Aggrawal
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, Rajasthan 333031, India
| | - Sunita Kumari
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, Rajasthan 333031, India
| | - Subhashis Gangopadhyay
- Department
of Physics, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, Rajasthan 333031, India
| | - Subit Kumar Saha
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, Rajasthan 333031, India
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Asadov ZH, Ahmadova GA, Rahimov RA, Hashimzade SZF, Abdullayev Y, Ismailov EH, Suleymanova SA, Asadova NZ, Zubkov FI, Autschbach J. Aggregation and antimicrobial properties of gemini surfactants with mono- and di-(2-hydroxypropyl)ammonium head-groups: Effect of the spacer length and computational studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112579] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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