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Mateos H, Mallardi A, Camero M, Lanave G, Catella C, Buonavoglia A, De Giglio O, Buonavoglia C, Palazzo G. Mechanism of surfactant interactions with feline coronavirus: A physical chemistry perspective. J Colloid Interface Sci 2024; 662:535-544. [PMID: 38364478 DOI: 10.1016/j.jcis.2024.02.088] [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: 01/04/2024] [Revised: 02/01/2024] [Accepted: 02/10/2024] [Indexed: 02/18/2024]
Abstract
HYPOTHESIS Surfactants are inexpensive chemicals with promising applications in virus inactivation, particularly for enveloped viruses. Yet, the detailed mechanisms by which surfactants deactivate coronaviruses remain underexplored. This study delves into the virucidal mechanisms of various surfactants on Feline Coronavirus (FCoV) and their potential applications against more pathogenic coronaviruses. EXPERIMENTS By integrating virucidal activity assays with fluorescence spectroscopy, dynamic light scattering and laser Doppler electrophoresis, alongside liposome permeability experiments, we have analyzed the effects of non-ionic and ionic surfactants on viral activity. FINDINGS The non-ionic surfactant octaethylene glycol monodecyl ether (C10EO8) inactivates the virus by disrupting the lipid envelope, whereas ionic surfactants like Sodium Dodecyl Sulfate and Cetylpyridinium Chloride predominantly affect the spike proteins, with their impact on the viral membrane being hampered by kinetic and thermodynamic constraints. FCoV served as a safe model for studying virucidal activity, offering a faster alternative to traditional virucidal assays. The study demonstrates that physicochemical techniques can expedite the screening of virucidal compounds, contributing to the design of effective disinfectant formulations. Our results not only highlight the critical role of surfactant-virus interactions but also contribute to strategic advancements in public health measures for future pandemic containment and the ongoing challenge of antimicrobial resistance.
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Affiliation(s)
- Helena Mateos
- Department of Chemistry and CSGI (Centre for Colloid and Surface Science), University of Bari "A. Moro", via Orabona 4, 70125 Bari, Italy.
| | - Antonia Mallardi
- Institute for Physical and Chemical Processes, Bari Division, National Council of Research (CNR), c/o Chemistry Department, Via Orabona 4, 70125 Bari, Italy.
| | - Michele Camero
- Department of Veterinary Medicine, University of Bari "A. Moro", Strada Provinciale per Casamassima km. 3, 70010 Valenzano, Bari, Italy.
| | - Gianvito Lanave
- Department of Veterinary Medicine, University of Bari "A. Moro", Strada Provinciale per Casamassima km. 3, 70010 Valenzano, Bari, Italy.
| | - Cristiana Catella
- Department of Veterinary Medicine, University of Bari "A. Moro", Strada Provinciale per Casamassima km. 3, 70010 Valenzano, Bari, Italy.
| | - Alessio Buonavoglia
- Dental School, Department of Biomedical and Neuromotor Sciences, University of Bologna Alma Mater, Italy.
| | - Osvalda De Giglio
- Interdisciplinary Department of Medicine, Hygiene Section, University of Bari "A. Moro", Piazza G. Cesare 11, 70124 Bari, Italy.
| | - Canio Buonavoglia
- Department of Veterinary Medicine, University of Bari "A. Moro", Strada Provinciale per Casamassima km. 3, 70010 Valenzano, Bari, Italy.
| | - Gerardo Palazzo
- Department of Chemistry and CSGI (Centre for Colloid and Surface Science), University of Bari "A. Moro", via Orabona 4, 70125 Bari, Italy.
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Ito N, Watanabe NM, Okamoto Y, Umakoshi H. Multiplicity of solvent environments in lipid bilayer revealed by DAS deconvolution of twin probes: Comparative method of Laurdan and Prodan. Biophys J 2023; 122:4614-4623. [PMID: 37924207 PMCID: PMC10719072 DOI: 10.1016/j.bpj.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/03/2023] [Accepted: 11/02/2023] [Indexed: 11/06/2023] Open
Abstract
Laurdan and Prodan were designed for the evaluation of the surrounding hydration state. When inserted into lipid bilayer systems, both probes are located at different positions and their fluorescence properties are drastically varied, depending on their surrounding environment. In this study, a novel method using the above fluorescence probes was proposed on the basis of fluorescence lifetime (τ) and emission peak (λ), called as τ vs. λ plot, determined by global analysis of their multiple fluorescence decays and deconvolution of these decay-associated spectra. According to the evaluation of τ vs. λ plot, the existence of multiple fluorescence components in the membrane was revealed. In addition, their fluorescence distribution properties, described on τ vs. λ plot, of each probe tended to correspond to the phase state and vertical direction of the lipid membrane. To assess the contribution of environmental effect to each distribution, we defined the region in the τ vs. λ plot, which was modeled from a series of solvent mixtures (hexane, acetone, ethanol and water) to emulate the complex environment in the 1,2-dipalmitoyl-sn-glycero-3-phosphocholine bilayer system. The distributions of fluorescence components of Laurdan and Prodan in lipid membranes were classified into each solvent species, and Prodan partition into bulk water was distinguished. The sensitivity of Prodan to the phase pretransition of the 1,2-dipalmitoyl-sn-glycero-3-phosphocholine bilayer system was also observed in increasing the temperature. Noticeably, most of the fluorescence components was assigned to the solvent model, except for a single component that has longer lifetime and shorter emission wavelength. This component was dominant in solid-ordered phase; hence, it is assumed to be a specific component in lipid membranes that cannot be represented by solvents. Although these are still qualitative analytical methods, the unique approach proposed in this study provides novel insights into the multi-focal property of the membrane.
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Affiliation(s)
- Natsuumi Ito
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Nozomi Morishita Watanabe
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan.
| | - Yukihiro Okamoto
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Hiroshi Umakoshi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan.
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Izzi M, Oliver M, Mateos H, Palazzo G, Cioffi N, Miró M. Analytical probing of membranotropic effects of antimicrobial copper nanoparticles on lipid vesicles as membrane models. NANOSCALE ADVANCES 2023; 5:6533-6541. [PMID: 38024310 PMCID: PMC10662242 DOI: 10.1039/d3na00608e] [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: 08/07/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
Copper nanoparticles (CuNPs) are antimicrobial agents that are increasingly being used in several real-life goods. However, concerns are arising about their potential toxicity and thus, appropriate legislation is being issued in various countries. In vitro exploration of the permeability and the distribution of nanoparticles in cell membranes should be explored as the first step towards the investigation of the toxicity mechanisms of metal nanoantimicrobials. In this work, phosphatidylcholine-based large unilamellar vesicles have been explored as mimics of cellular membranes to investigate the effect of ultra-small CuNPs on the physicochemical features of phospholipid membranes. 4 nm-sized CuNPs were synthesized by a wet-chemical route that involves glutathione as a stabilizer, with further characterization by UV-vis absorption spectroscopy, fluorescence spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR) spectroscopy. Two fluorescent membrane probes bearing naphthalene moieties (laurdan and prodan) were used to monitor the bilayer structure and dynamics, as well as to demonstrate the strong membranotropic effects of CuNPs. The fluorescence spectroscopic studies were supported by dynamic light scattering (DLS) measurements and the calcein leakage assay. Additionally, the degree of perturbation of the phospholipid bilayer by CuNPs was compared against that of Cu2+ ions, the latter resulting in negligible effects. The findings suggested that CuNPs are able to damage the phospholipid membranes, leading to their agglomeration or disruption.
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Affiliation(s)
- Margherita Izzi
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Miquel Oliver
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands Carretera de Valldemossa km 7.5 E-07122 Palma de Mallorca Spain
| | - Helena Mateos
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Gerardo Palazzo
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Nicola Cioffi
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Manuel Miró
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands Carretera de Valldemossa km 7.5 E-07122 Palma de Mallorca Spain
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García-Moll M, García-Moll L, Carrasco-Correa EJ, Oliver M, Simó-Alfonso EF, Miró M. Biomimetic Dispersive Solid-Phase Microextraction: A Novel Concept for High-Throughput Estimation of Human Oral Absorption of Organic Compounds. Anal Chem 2023; 95:13123-13131. [PMID: 37615399 PMCID: PMC10483468 DOI: 10.1021/acs.analchem.3c01749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
There is a quest for a novel in vitro analytical methodology that is properly validated for the prediction of human oral absorption and bioaccumulation of organic compounds with no need of animal models. The traditional log P parameter might not serve to predict bioparameters accurately inasmuch as it merely accounts for the hydrophobicity of the compound, but the actual interaction with the components of eukaryotic cells is neglected. This contribution proposes for the first time a novel biomimetic microextraction approach capitalized on immobilized phosphatidylcholine as a plasma membrane surrogate onto organic polymeric sorptive phases for the estimation of human intestinal effective permeability of a number of pharmaceuticals that are also deemed contaminants of emerging concern in environmental settings. A comprehensive exploration of the conformation of the lipid structure onto the surfaces is undertaken so as to discriminate the generation of either lipid monolayers or bilayers or the attachment of lipid nanovesicles. The experimentally obtained biomimetic extraction data is proven to be a superb parameter against other molecular descriptors for the development of reliable prediction models of human jejunum permeability with R2 = 0.76, but the incorporation of log D and the number of aromatic rings in multiple linear regression equations enabled improved correlations up to R2 = 0.88. This work is expected to open new avenues for expeditious in vitro screening methods for oral absorption of organic contaminants of emerging concern in human exposomics.
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Affiliation(s)
- Maria
Pau García-Moll
- FI-TRACE
Group, Department of Chemistry, University
of the Balearic Islands, Carretera de Valldemossa, km 7.5, Palma de
Mallorca E-07122, Spain
| | - Llucia García-Moll
- FI-TRACE
Group, Department of Chemistry, University
of the Balearic Islands, Carretera de Valldemossa, km 7.5, Palma de
Mallorca E-07122, Spain
| | - Enrique Javier Carrasco-Correa
- CLECEM
Group, Department of Analytical Chemistry, University of Valencia, C/Doctor Moliner, 50, Burjassot, Valencia 46100, Spain
| | - Miquel Oliver
- FI-TRACE
Group, Department of Chemistry, University
of the Balearic Islands, Carretera de Valldemossa, km 7.5, Palma de
Mallorca E-07122, Spain
| | - Ernesto Francisco Simó-Alfonso
- CLECEM
Group, Department of Analytical Chemistry, University of Valencia, C/Doctor Moliner, 50, Burjassot, Valencia 46100, Spain
| | - Manuel Miró
- FI-TRACE
Group, Department of Chemistry, University
of the Balearic Islands, Carretera de Valldemossa, km 7.5, Palma de
Mallorca E-07122, Spain
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Benetis NP, Paloncýová M, Knippenberg S. Multiscale Modeling Unravels the Influence of Biomembranes on the Photochemical Properties of Embedded Anti-Oxidative Polyphenolic and Phenanthroline Chelating Dyes. J Phys Chem B 2023; 127:212-227. [PMID: 36563093 DOI: 10.1021/acs.jpcb.2c07072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The embedding of caffeate methyl ester, the flavonoids luteolin and quercetin, and the o-phenanthroline and neocuproine in a liquid disordered lipid bilayer has been studied through extensive atomistic calculations. The location and the orientation of these bio-active antioxidants are explained and analyzed. While the two phenanthrolines strongly associate with the lipid tail region, the other three compounds are rather found among the head groups. The simulations showcase conformational changes of the flavonoids. Through the use of a hybrid quantum mechanics-molecular mechanics scheme and supported by a profound benchmarking of the electronic excited-state method for these compounds, the influence of the anisotropic environment on the compounds' optical properties is analyzed. Influences of surrounding water molecules and of the polar parts of the lipids on the transition dipole moments and excited-state dipole moments are weighted with respect to a change in conformation. The current study highlights the importance of the mapping of molecular interactions in model membranes and pinpoints properties, which can be biomedically used to discriminate and detect different lipid environments.
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Affiliation(s)
| | - Markéta Paloncýová
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technologies and Research Institute, Palacký University Olomouc, Křížkovského 8, Olomouc779 00, Czech Republic
| | - Stefan Knippenberg
- Hasselt University, Theory Lab, Agoralaan Building D, 3590Diepenbeek, Belgium.,Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Université Libre de Bruxelles, 50 Avenue F. Roosevelt, C.P. 160/09, B-1050Brussels, Belgium
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Razavi R, Basij M, Beitollahi H, Panahandeh S. Experimental and theoretical investigation of acetamiprid adsorption on nano carbons and novel PVC membrane electrode for acetamiprid measurement. Sci Rep 2022; 12:12145. [PMID: 35840789 PMCID: PMC9287318 DOI: 10.1038/s41598-022-16459-x] [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: 05/01/2022] [Accepted: 07/11/2022] [Indexed: 11/20/2022] Open
Abstract
Acetamiprid removal was investigated by synthesized Graphene oxide, multiwall nanotube and graphite from an aqueous solution. For this propose, FT-IR, XRD, UV–Vis, SEM and EDS were used to characterize the synthesized nano adsorbents and to determine the removal process. A novel PVC membrane electrode as selective electrode made for determining the concentration of acetamiprid. Batch adsorption studies were conducted to investigate the effect of temperature, initial acetamiprid concentration, adsorbent type and contact time as important adsorption parameters. The maximum equilibrium time was found to be 15 min for graphene oxide. The kinetics studies showed that the adsorption of acetamiprid followed the pseudo-second-order kinetics mechnism. All the adsorption equilibrium data were well fitted to the Langmuir isotherm model and maximum monolayer adsorption capacity 99 percent. Docking data of adsorption have resulted in the same as experimental data in good manner and confirmed the adsorption process.
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Affiliation(s)
- Razieh Razavi
- Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, Iran.
| | - Moslem Basij
- Department of Plant Protection, Faculty of Agriculture, University of Jiroft, Jiroft, Iran.
| | - Hadi Beitollahi
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
| | - Saleh Panahandeh
- Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
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7
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Duncan KM, Steel WH, Walker RA. Amino acids change solute affinity for lipid bilayers. Biophys J 2021; 120:3676-3687. [PMID: 34310940 PMCID: PMC8456291 DOI: 10.1016/j.bpj.2021.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 06/19/2021] [Accepted: 07/20/2021] [Indexed: 11/26/2022] Open
Abstract
Time-resolved fluorescence and differential scanning calorimetry (DSC) were used to examine how two amino acids, L-phenylalanine (L-PA) and N-acetyl-DL-tryptophan (NAT), affect the temperature-dependent membrane affinity of two structurally similar coumarin solutes for 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) vesicles. The 7-aminocoumarin solutes, coumarin 151 (C151) and coumarin 152 (C152), differ in their substitution at amine position-C151 is a primary amine, and C152 is a tertiary amine-and both solutes show different tendencies to associate with lipid bilayers consistent with differences in their respective log-P-values. Adding L-PA to the DPPC vesicle solution did not change C151's propensity to remain freely solvated in aqueous solution, but C152 showed a greater tendency to partition into the hydrophobic bilayer interior at temperatures below DPPC's gel-liquid crystalline transition temperature (Tgel-lc). This finding is consistent with L-PA's ability to enhance membrane permeability by disrupting chain-chain interactions. Adding NAT to DPPC-vesicle-containing solutions changed C151 and C152 affinity for the DPPC membranes in unexpected ways. DSC data show that NAT interacts strongly with the lipid bilayer, lowering Tgel-lc by up to 2°C at concentrations of 10 mM. These effects disappear when either C151 or C152 is added to solution at concentrations below 10 μM, and Tgel-lc returns to a value consistent with unperturbed DPPC bilayers. Together with DSC results, fluorescence data imply that NAT promotes coumarin adsorption to the vesicle bilayer surface. NAT's effects diminish above Tgel-lc and imply that unlike L-PA, NAT does not penetrate into the bilayer but instead remains adsorbed to the bilayer's exterior. Taken in their entirety, these discoveries suggest that amino acids-and by inference, polypeptides and proteins-change solute affinity for lipid bilayers with specific effects that depend on individualized amino-acid-lipid-bilayer interactions.
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Affiliation(s)
- Katelyn M Duncan
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana
| | - William H Steel
- Department of Chemistry, York College of Pennsylvania, York, Pennsylvania
| | - Robert A Walker
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana; Montana Materials Science Program, Montana State University, Bozeman, Montana.
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