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Stackhouse CI, Pierson KN, Labrecque CL, Mawson C, Berg J, Fuglestad B, Nucci NV. Characterization of 10MAG/LDAO reverse micelles: Understanding versatility for protein encapsulation. Biophys Chem 2024; 311:107269. [PMID: 38815545 PMCID: PMC11225088 DOI: 10.1016/j.bpc.2024.107269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/01/2024]
Abstract
Reverse micelles (RMs) are spontaneously organizing nanobubbles composed of an organic solvent, surfactants, and an aqueous phase that can encapsulate biological macromolecules for various biophysical studies. Unlike other RM systems, the 1-decanoyl-rac-glycerol (10MAG) and lauryldimethylamine-N-oxide (LDAO) surfactant system has proven to house proteins with higher stability than other RM mixtures with little sensitivity to the water loading (W0, defined by the ratio of water to surfactant). We investigated this unique property by encapsulating three model proteins - cytochrome c, myoglobin, and flavodoxin - in 10MAG/LDAO RMs and applying a variety of experimental methods to characterize this system's behavior. We found that this surfactant system differs greatly from the traditional, spherical, monodisperse RM population model. 10MAG/LDAO RMs were discovered to be oblate ellipsoids at all conditions, and as W0 was increased, surfactants redistributed to form a greater number of increasingly spherical ellipsoidal particles with pools of more bulk-like water. Proteins distinctively influence the thermodynamics of the mixture, encapsulating at their optimal RM size and driving protein-free RM sizes to scale accordingly. These findings inform the future development of similarly malleable encapsulation systems and build a foundation for application of 10MAG/LDAO RMs to analyze biological and chemical processes under nanoscale confinement.
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Affiliation(s)
- Crystal I Stackhouse
- Department of Physics and Astronomy, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States; Department of Biomedical and Biological Sciences, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States.
| | - Kali N Pierson
- Department of Physics and Astronomy, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States; Department of Biomedical and Biological Sciences, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States.
| | - Courtney L Labrecque
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States.
| | - Cara Mawson
- Department of Physics and Astronomy, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States; Department of Biomedical and Biological Sciences, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States.
| | - Joshua Berg
- Department of Physics and Astronomy, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States; Department of Biomedical and Biological Sciences, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States
| | - Brian Fuglestad
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States; Institute for Structural Biology, Drug Discovery and Development, Virginia Commonwealth University, Richmond, Virginia 23219, United States.
| | - Nathaniel V Nucci
- Department of Physics and Astronomy, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States; Department of Biomedical and Biological Sciences, Rowan University, 201 Mullica Hill Rd, Glassboro, NJ 08028, United States.
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2
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Jörgensen AM, Steinbring C, Stengel D, To D, Schmid P, Bernkop-Schnürch A. Self-Emulsifying Drug Delivery Systems (SEDDS) Containing Reverse Micelles: Advanced Oral Formulations for Therapeutic Peptides. Adv Healthc Mater 2023; 12:e2302034. [PMID: 37696266 DOI: 10.1002/adhm.202302034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/05/2023] [Indexed: 09/13/2023]
Abstract
Alternative methods to hydrophobic ion pairing for the formation of lipophilic complexes of peptide drugs to incorporate them in lipid-based nanocarriers such as self-emulsifying drug delivery systems (SEDDS) for oral administration are highly on demand. Such an alternative might be reverse micelles. Within this study, SEDDS containing dry reverse micelles (dRMsPMB ) formed with an anionic (sodium docusate; AOT), cationic (dimethyl-dioctadecyl-ammonium bromide; DODAB), amphoteric (soy lecithin; SL), or non-ionic (polysorbate 85; P85) surfactant loaded with the model peptide drug polymyxin B (PMB) are developed. They are characterized regarding size, payload, release kinetics, cellular uptake, and peptide activity. SEDDS exhibit sizes from 22.2 ± 1.7 (AOT-SEDDS-dRMsPMB ) to 61.7 ± 3.2 nm (P85-SEDDS-dRMsPMB ) with payloads up to 2% that are approximately sevenfold higher than those obtained via hydrophobic ion pairing. Within 6 h P85-SEDDS-dRMsPMB and AOT-SEDDS-dRMsPMB show no release of PMB in aqueous medium, whereas DODAB-SEDDS-dRMsPMB and SL-SEDDS-dRMsPMB show a sustained release. DODAB-SEDDS-dRMsPMB improves uptake by Caco-2 cells most efficiently reaching even ≈100% within 4 h followed by AOT-SEDDS-dRMsPMB with ≈20% and P85-/SL-SEDDS-dRMsPMB with ≈5%. The peptide drug maintains its antimicrobial activity in all SEDDS-dRMsPMB . According to these results, SEDDS containing dRMs might be a game changing strategy for oral peptide drug delivery.
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Affiliation(s)
- Arne Matteo Jörgensen
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Center for Chemistry and Biomedicine, Innrain 80-82, Innsbruck, 6020, Austria
| | - Christian Steinbring
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Center for Chemistry and Biomedicine, Innrain 80-82, Innsbruck, 6020, Austria
| | - Daniel Stengel
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Center for Chemistry and Biomedicine, Innrain 80-82, Innsbruck, 6020, Austria
| | - Dennis To
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Center for Chemistry and Biomedicine, Innrain 80-82, Innsbruck, 6020, Austria
| | - Pascal Schmid
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Center for Chemistry and Biomedicine, Innrain 80-82, Innsbruck, 6020, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, University of Innsbruck, Institute of Pharmacy, Center for Chemistry and Biomedicine, Innrain 80-82, Innsbruck, 6020, Austria
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Lebedev VT, Kulvelis YV, Shvidchenko AV, Primachenko ON, Odinokov AS, Marinenko EA, Kuklin AI, Ivankov OI. Electrochemical Properties and Structure of Membranes from Perfluorinated Copolymers Modified with Nanodiamonds. MEMBRANES 2023; 13:850. [PMID: 37999338 PMCID: PMC10673602 DOI: 10.3390/membranes13110850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/17/2023] [Accepted: 10/20/2023] [Indexed: 11/25/2023]
Abstract
In this study, we aimed to design and research proton-conducting membranes based on Aquivion®-type material that had been modified with detonation nanodiamonds (particle size 4-5 nm, 0.25-5.0 wt. %). These nanodiamonds carried different functional groups (H, OH, COOH, F) that provided the hydrophilicity of the diamond surface with positive or negative potential, or that strengthened the hydrophobicity of the diamonds. These variations in diamond properties allowed us to find ways to improve the composite structure so as to achieve better ion conductivity. For this purpose, we prepared three series of membrane films by first casting solutions of perfluorinated Aquivion®-type copolymers with short side chains mixed with diamonds dispersed on solid substrates. Then, we removed the solvent and the membranes were structurally stabilized during thermal treatment and transformed into their final form with -SO3H ionic groups. We found that the diamonds with a hydrogen-saturated surface, with a positive charge in aqueous media, contributed to the increase in proton conductivity of membranes to a greater rate. Meanwhile, a more developed conducting diamond-copolymer interface was formed due to electrostatic attraction to the sulfonic acid groups of the copolymer than in the case of diamonds grafted with negatively charged carboxyls, similar to sulfonic groups of the copolymer. The modification of membranes with fluorinated diamonds led to a 5-fold decrease in the conductivity of the composite, even when only a fraction of diamonds of 1 wt. % were used, which was explained by the disruption in the connectivity of ion channels during the interaction of such diamonds mainly with fluorocarbon chains of the copolymer. We discussed the specifics of the mechanism of conductivity in composites with various diamonds in connection with structural data obtained in neutron scattering experiments on dry membranes, as well as ideas about the formation of cylindrical micelles with central ion channels and shells composed of hydrophobic copolymer chains. Finally, the characteristics of the network of ion channels in the composites were found depending on the type and amount of introduced diamonds, and correlations between the structure and conductivity of the membranes were established.
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Affiliation(s)
- Vasily T. Lebedev
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Center “Kurchatov Institute”, 188300 Gatchina, Russia
| | - Yuri V. Kulvelis
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Center “Kurchatov Institute”, 188300 Gatchina, Russia
| | | | - Oleg N. Primachenko
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (O.N.P.); (E.A.M.)
| | - Alexei S. Odinokov
- Russian Research Center of Applied Chemistry, 193232 St. Petersburg, Russia;
| | - Elena A. Marinenko
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (O.N.P.); (E.A.M.)
| | - Alexander I. Kuklin
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia; (A.I.K.); (O.I.I.)
| | - Oleksandr I. Ivankov
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia; (A.I.K.); (O.I.I.)
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Chen Q, Denisov SA, Dobrovolskii D, Mostafavi M. Observation of Nanoconfinement Effect on the Kinetics of Hydrated Electron in the Nanoscale Water Pools of Water-AOT-Cyclohexane Microemulsions by Picosecond Pulse Radiolysis. J Phys Chem B 2023; 127:7974-7982. [PMID: 37681575 DOI: 10.1021/acs.jpcb.3c04302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
The decay kinetics of the hydrated electron (eaq-) in aerosol OT (AOT)-based ternary microemulsions with pool sizes ranging from 0.34 to 4.85 nm were studied using picosecond pulse radiolysis coupled with transient absorption UV-vis spectroscopy. Electron transfer from oil to water and the subsequent solvation occurred within a time resolution of 7 ps. The decay kinetics of eaq- were accurately modeled using a double-exponential decay model, revealing the occurrence of two types of reactions, i.e., the recombination reaction at the water-oil interface and the radical-radical reactions in the water pools. The apparent lifetimes of both types of decays decreased significantly as the size of water pools decreased, indicating the influence of nanoconfinement effects. Moreover, the importance of the water-oil interface increased with decreasing water content, regardless of the presence or absence of NO3- as an electron scavenger in the water pools. Our findings provide a comprehensive understanding on the kinetics of the radiation reaction in AOT-based microemulsions.
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Affiliation(s)
- Qingde Chen
- Institut de Chimie Physique, UMR 8000 CNRS, Bât. 349, Université Paris-Saclay, 91405 Orsay, Cedex, France
- Beijing National Laboratory for Molecular Sciences, Fundamental Science on Radiochemistry and Radiation Chemistry Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Sergey A Denisov
- Institut de Chimie Physique, UMR 8000 CNRS, Bât. 349, Université Paris-Saclay, 91405 Orsay, Cedex, France
| | - Denis Dobrovolskii
- Institut de Chimie Physique, UMR 8000 CNRS, Bât. 349, Université Paris-Saclay, 91405 Orsay, Cedex, France
| | - Mehran Mostafavi
- Institut de Chimie Physique, UMR 8000 CNRS, Bât. 349, Université Paris-Saclay, 91405 Orsay, Cedex, France
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5
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Ghosh R, Mukherjee D, Ghosh G, Nur Hasan M, Chattopadhyay A, Das R, Kumar Pal S. Mimicking Cellular Fusion in A Microfluidic Channel Via Time-Resolved Chemiluminescence. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Gagliardi M, Vincenzi A, Baroncelli L, Cecchini M. Stabilized Reversed Polymeric Micelles as Nanovector for Hydrophilic Compounds. Polymers (Basel) 2023; 15:polym15040946. [PMID: 36850229 PMCID: PMC9966941 DOI: 10.3390/polym15040946] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
Small hydrophilic drugs are widely used for systemic administration, but they suffer from poor absorption and fast clearance. Their nanoencapsulation can improve biodistribution, targeted delivery, and pharmaceutical efficacy. Hydrophilics are effectively encapsulated in compartmented particles, such as liposomes or extracellular vesicles, which are biocompatible but poorly customizable. Polymeric vectors can form compartmental structures, also being functionalizable. Here, we report a system composed of polymeric stabilized reversed micelles for hydrophilic drugs encapsulation. We optimized the preparation procedure, and calculated the critical micellar concentration. Then, we developed a strategy for stabilization that improves micelle stability upon dilution. We tested the drug loading and delivery capabilities with creatine as a drug molecule. Prepared stabilized reversed micelles had a size of around 130 nm and a negative z-potential around -16 mV, making them functional as a drug carrier. The creatine cargo increased micelle size and depended on the loading conditions. The higher amount of loaded creatine was around 60 μg/mg of particles. Delivery tests indicated full release within three days in micelles with the lower cargo, while higher loadings can provide a sustained release for longer times. Obtained results are interesting and encouraging to test the same system with different drug cargoes.
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Affiliation(s)
- Mariacristina Gagliardi
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro, 56127 Pisa, Italy
- Correspondence:
| | - Agnese Vincenzi
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro, 56127 Pisa, Italy
| | - Laura Baroncelli
- Institute of Neuroscience, National Research Council (CNR), Via Giuseppe Moruzzi 1, 56124 Pisa, Italy
- Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, Viale del Tirreno 331, 56128 Calambrone, Italy
| | - Marco Cecchini
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro, 56127 Pisa, Italy
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7
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Poghosyan AH, Abel S, Koetz J. Simulation of AOT reverse micelles with polyethylenimine in hexane. Colloid Polym Sci 2023. [DOI: 10.1007/s00396-023-05059-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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8
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Parodi F, Cacciari RD, Mazalu JN, Montejano HA, Reynoso E, Biasutti MA. UVB light influence on the laccase enzyme catalytic activity in reverse micelles and in homogeneous aqueous medium. Amino Acids 2023; 55:469-479. [PMID: 36695918 DOI: 10.1007/s00726-023-03237-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023]
Abstract
Laccase is a versatile enzyme widely used for the oxidation of environmental contaminants and exhibits great potential in many others applications; however, it undergoes photo-degradation when irradiated with UVB light. The photo-stability of this biomolecule can be improved by immobilization in different encapsulation media and reverse micelles have been employed with this purpose. The laccase activity using syringaldazine as substrate has been studied in the absence and in the presence of reverse micelles of 0.15 M of sodium 1,4-bis (2-ethylhexyl) sulfosuccinate (AOT) in isooctane at W0 ([H2O]/[AOT]) = 30, before and after irradiation of the enzyme with UVB light. The kinetic parameters, i.e., Michaelis-Menten constant (KM), catalytic constant (kCAT), and catalytic efficiency (kCAT/KM), were determined by spectroscopic measurements in the micellar system and in homogeneous aqueous medium. The distribution of the substrate in two pseudo-phases (micelle and organic solvent) was taking into account in the kinetic parameters' determinations. The results obtained indicate that the nano-aggregate system confers a solubilization media in the water core of the micelle, both for the enzyme and the substrate, in which the catalytic function of the enzyme is preserved. On the other hand, in homogeneous aqueous medium kCAT/KM value, it is reduced by ~50% after UVB irradiation of the enzyme, while in micellar medium, less than 10% of the activity was affected. This mean that the enzyme achieves a considerably photo-protection when it is irradiated with UVB light in reverse micelles as compared with the homogeneous aqueous medium. This phenomenon can be mainly due to the confinement of the biomolecule inside the micelle. Physical properties of the nano-environment could affect photochemical reactions.
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Affiliation(s)
- Facundo Parodi
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
- Instituto Para El Desarrollo Agroindustrial y de la Salud (IDAS), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - R Daniel Cacciari
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CONICET-UNLP, Diagonal 113 y 64, Casco Urbano, B1900, La Plata, Buenos Aires, Argentina
| | - Jeremías N Mazalu
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Hernán A Montejano
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Eugenia Reynoso
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
- Instituto Para El Desarrollo Agroindustrial y de la Salud (IDAS), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
| | - M Alicia Biasutti
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
- Instituto Para El Desarrollo Agroindustrial y de la Salud (IDAS), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
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Monti GA, Falcone RD, Moyano F, Correa NM. Green AOT reverse micelles as nanoreactors for alkaline phosphatase. The hydrogen bond "dances" between water and the enzyme, the reaction product, and the reverse micelles interface. RSC Adv 2023; 13:1194-1202. [PMID: 36686944 PMCID: PMC9811498 DOI: 10.1039/d2ra06296h] [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: 10/06/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
In this work, we present an investigation of the influence of water encapsulated in 1,4-bis-2-ethylhexylsulfosuccinate/methyl laurate and 1,4-bis-2-ethylhexylsulfosuccinate/isopropyl myristate reverse micelles on the enzymatic hydrolysis of 1-naphthyl phosphate by alkaline phosphatase. Our results show that the enzyme is active in the biocompatible reverse micelles studied and that the Michaelis-Menten kinetic model is valid in all systems. We found that both micellar systems studied have a particular behavior toward pH and that the penetration of external solvents into the interfaces is crucial to understanding the effect. Methyl laurate does not disrupt the interface and is not necessary to control the pH value since alkaline phosphatase in the center of the micelles is always solvated similarly. In contrast, isopropyl myristate disrupts the interfaces so that the water and 1-naphthol molecules cannot form hydrogen bond interactions with the polar head of the surfactant. Then, when the water is at pH = 7, the 1-naphthol moves away to the interfaces inhibiting alkaline phosphatase which is not observable when the water is at pH = 10. Our study shows that the concept of pH cannot be used directly in a confined environment. In addition, our research is of great importance in the field of reactions that occur in reverse micelles, catalyzed by enzymes.
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Affiliation(s)
- Gustavo A. Monti
- Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS, CONICET-UNRC), Departamento de Química, Universidad Nacional de Río CuartoRío CuartoArgentina,Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA, CONICET-UNRC), Departamento de Tecnología Química, Universidad Nacional de Río CuartoRío CuartoArgentina
| | - R. Darío Falcone
- Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS, CONICET-UNRC), Departamento de Química, Universidad Nacional de Río CuartoRío CuartoArgentina
| | - Fernando Moyano
- Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS, CONICET-UNRC), Departamento de Química, Universidad Nacional de Río CuartoRío CuartoArgentina
| | - N. Mariano Correa
- Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS, CONICET-UNRC), Departamento de Química, Universidad Nacional de Río CuartoRío CuartoArgentina
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Direct and Reverse Pluronic Micelles: Design and Characterization of Promising Drug Delivery Nanosystems. Pharmaceutics 2022; 14:pharmaceutics14122628. [PMID: 36559122 PMCID: PMC9787366 DOI: 10.3390/pharmaceutics14122628] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/19/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Pluronics are a family of amphiphilic block copolymers broadly explored in the pharmaceutical field. Under certain conditions, Pluronics self-assemble in different structures including nanosized direct and reverse micelles. This review provides an overview about the main parameters affecting the micellization process of Pluronics, such as polymer length, fragments distribution within the chain, solvents, additives and loading of cargo. Furthermore, it offers a guide about the most common techniques used to characterize the structure and properties of the micelles. Finally, it presents up-to-date approaches to improve the stability and drug loading of Pluronic micelles. Special attention is paid to reverse Pluronics and reverse micelles, currently underexplored in the literature. Pluronic micelles present a bright future as drug delivery agents. A smart design and thorough characterization will improve the transfer to clinical applications.
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11
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Ikehata A, Nakamura K, Ozaki Y. Extended molar absorption analysis of confined states of water in reverse micelles using near-infrared spectroscopy. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Protein-sized nanozymes «artificial peroxidase» based on template catalytic synthesis of Prussian Blue. Bioelectrochemistry 2022; 149:108275. [DOI: 10.1016/j.bioelechem.2022.108275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/29/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022]
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13
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Volumetric determination of reverse micelle structural properties and the validity of commonplace approximations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120680] [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]
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14
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A Review of Polymeric Micelles and Their Applications. Polymers (Basel) 2022; 14:polym14122510. [PMID: 35746086 PMCID: PMC9230755 DOI: 10.3390/polym14122510] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 12/21/2022] Open
Abstract
Self-assembly of amphiphilic polymers with hydrophilic and hydrophobic units results in micelles (polymeric nanoparticles), where polymer concentrations are above critical micelle concentrations (CMCs). Recently, micelles with metal nanoparticles (MNPs) have been utilized in many bio-applications because of their excellent biocompatibility, pharmacokinetics, adhesion to biosurfaces, targetability, and longevity. The size of the micelles is in the range of 10 to 100 nm, and different shapes of micelles have been developed for applications. Micelles have been focused recently on bio-applications because of their unique properties, size, shape, and biocompatibility, which enhance drug loading and target release in a controlled manner. This review focused on how CMC has been calculated using various techniques. Further, micelle importance is explained briefly, different types and shapes of micelles are discussed, and further extensions for the application of micelles are addressed. In the summary and outlook, points that need focus in future research on micelles are discussed. This will help researchers in the development of micelles for different applications.
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15
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Lipopeptides in promoting signals at surface/interface of micelles: Their roles in repairing cellular and nuclear damages. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2021.101522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Uji H, Watabe N, Komi T, Sakaguchi T, Akamatsu R, Mihara K, Kimura S. Downsizing to 25-nm reverse polymeric micelle composed of AB3-type polydepsipeptide with comprising siRNA. CHEM LETT 2022. [DOI: 10.1246/cl.210704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hirotaka Uji
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
| | - Naoki Watabe
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
| | - Tatsuya Komi
- Drug Discovery Research Laboratories, Kyoto R&D Center, Maruho Co., Ltd., 92 Awata-cho, Chudoji, Shimogyo-ku, Kyoto, 600-8815
| | - Tomoki Sakaguchi
- Drug Discovery Research Laboratories, Kyoto R&D Center, Maruho Co., Ltd., 92 Awata-cho, Chudoji, Shimogyo-ku, Kyoto, 600-8815
| | - Ryo Akamatsu
- Drug Discovery Research Laboratories, Kyoto R&D Center, Maruho Co., Ltd., 92 Awata-cho, Chudoji, Shimogyo-ku, Kyoto, 600-8815
| | - Kenta Mihara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
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17
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Xu H, Tae H, Cho NJ, Huang C, Hsia KJ. Thermodynamic Modeling of Solvent-Assisted Lipid Bilayer Formation Process. MICROMACHINES 2022; 13:mi13010134. [PMID: 35056299 PMCID: PMC8777629 DOI: 10.3390/mi13010134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 12/22/2022]
Abstract
The solvent-assisted lipid bilayer (SALB) formation method provides a simple and efficient, microfluidic-based strategy to fabricate supported lipid bilayers (SLBs) with rich compositional diversity on a wide range of solid supports. While various studies have been performed to characterize SLBs formed using the SALB method, relatively limited work has been carried out to understand the underlying mechanisms of SALB formation under various experimental conditions. Through thermodynamic modeling, we studied the experimental parameters that affect the SALB formation process, including substrate surface properties, initial lipid concentration, and temperature. It was found that all the parameters are critically important to successfully form high-quality SLBs. The model also helps to identify the range of parameter space within which conformal, homogeneous SLBs can be fabricated, and provides mechanistic guidance to optimize experimental conditions for lipid membrane-related applications.
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Affiliation(s)
- Hongmei Xu
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore;
| | - Hyunhyuk Tae
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore;
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore;
- Correspondence: (N.-J.C.); (C.H.); (K.J.H.)
| | - Changjin Huang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore;
- Correspondence: (N.-J.C.); (C.H.); (K.J.H.)
| | - K. Jimmy Hsia
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore;
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
- Correspondence: (N.-J.C.); (C.H.); (K.J.H.)
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18
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Calabrese C, La Parola V, Testa ML, Liotta LF. Antifouling and antimicrobial activity of Ag, Cu and Fe nanoparticles supported on silica and titania. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120636] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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19
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Villeneuve P, Bourlieu-Lacanal C, Durand E, Lecomte J, McClements DJ, Decker EA. Lipid oxidation in emulsions and bulk oils: a review of the importance of micelles. Crit Rev Food Sci Nutr 2021:1-41. [PMID: 34839769 DOI: 10.1080/10408398.2021.2006138] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Lipid oxidation is a major cause of quality deterioration in food products. In these foods, lipids are often present in a bulk or in emulsified forms. In both systems, the rate, extent and pathway of oxidation are highly dependent on the presence of colloidal structures and interfaces because these are the locations where oxidation normally occurs. In bulk oils, reverse micelles (association colloids) are present and are believed to play a crucial role on lipid oxidation. Conversely, in emulsions, surfactant micelles are present that also play a major role in lipid oxidation pathways. After a brief description of lipid oxidation and antioxidants mechanisms, this review discusses the current understanding of the influence of micellar structures on lipid oxidation. In particular, is discussed the major impact of the presence of micelles in emulsions, or reverse micelles (association colloids) in bulk oil on the oxidative stability of both systems. Indeed, both micelles in emulsions and associate colloids in bulk oils are discussed in this review as nanoscale structures that can serve as reservoirs of antioxidants and pro-oxidants and are involved in their transport within the concerned system. Their role as nanoreactors where lipid oxidation reactions occur is also commented.
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Affiliation(s)
- Pierre Villeneuve
- CIRAD, UMR QualiSud, Montpellier, France.,QualiSud, Univ Montpellier, CIRAD, Montpellier SupAgro, Université d'Avignon, Université de La Réunion, Montpellier, France
| | - Claire Bourlieu-Lacanal
- QualiSud, Univ Montpellier, CIRAD, Montpellier SupAgro, Université d'Avignon, Université de La Réunion, Montpellier, France.,UMR IATE, Univ Montpellier, INRAE, Institut Agro, Montpellier, France
| | - Erwann Durand
- CIRAD, UMR QualiSud, Montpellier, France.,QualiSud, Univ Montpellier, CIRAD, Montpellier SupAgro, Université d'Avignon, Université de La Réunion, Montpellier, France
| | - Jérôme Lecomte
- CIRAD, UMR QualiSud, Montpellier, France.,QualiSud, Univ Montpellier, CIRAD, Montpellier SupAgro, Université d'Avignon, Université de La Réunion, Montpellier, France
| | | | - Eric A Decker
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
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20
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Photocatalytic performance and interaction mechanism of reverse micelle synthesized Cu-TiO 2 nanomaterials towards levofloxacin under visible LED light. Photochem Photobiol Sci 2021; 21:77-89. [PMID: 34839454 DOI: 10.1007/s43630-021-00141-8] [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] [Received: 06/22/2021] [Accepted: 11/15/2021] [Indexed: 10/19/2022]
Abstract
The degradation performance of Cu-TiO2 nanomaterials towards levofloxacin (LFX) antibiotic was investigated under an environmentally benign visible LED light source. Cu-TiO2 nanomaterials were prepared using the reverse micelle sol-gel method with different copper content ranging from 0.25 to 1.0 wt% concerning titania. Characterization of Cu-TiO2 samples was performed by XRD, TEM, UV-Vis, BET, ICP-MS, FTIR and XPS techniques. 0.5 wt% Cu-TiO2 showed crystallite size below 6 nm, surface area (69.85 m2/g) and significant visible light absorption capacity. Both Cu1+ and Cu2+ are formed in lower Cu-doped TiO2 samples, whereas only Cu2+ is present in higher Cu-doped TiO2 samples as evident in XPS analysis. 0.5 wt% Cu-TiO2 has shown the optimum photocatalytic degradation of 75.5% under 6 h. of a visible light source. FTIR analysis of LFX adsorbed Cu-TiO2 materials indicated the pollutant-catalyst interaction, where the declining trend was observed in photocatalytic degradation efficiency for higher Cu-doped TiO2 samples due to copper-LFX complex formation. Copper-LFX complexes are formed due to the presence of Cu2+ in higher Cu-doped TiO2 nanomaterials, which might have hindered the photocatalytic activity under visible light. Effects of initial pollutant concentration, catalyst loading and visible light intensity on the degradation of LFX are studied. Photocatalytic degradation pathways of LFX using best performing Cu-TiO2 material were also proposed based on the LC-MS analysis.
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21
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Farias CBB, Soares da Silva RDCF, Almeida FCG, Santos VA, Sarubbo LA. Removal of heavy oil from contaminated surfaces with a detergent formulation containing biosurfactants produced by Pseudomonas spp. PeerJ 2021; 9:e12518. [PMID: 34900433 PMCID: PMC8627655 DOI: 10.7717/peerj.12518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/27/2021] [Indexed: 12/17/2022] Open
Abstract
Industrial plants powered by heavy oil routinely experience problems with leaks in different parts of the system, such as during oil transport, the lubrication of equipment and mechanical failures. The surfactants, degreasing agents and solvents that make up detergents commonly used for cleaning grease-covered surfaces are synthetic, non-biodegradable and toxic, posing risks to the environment as well as the health of workers involved in the cleaning process. To address this problem, surfactant agents of a biodegradable nature and low toxicity, such as microbial surfactants, have been widely studied as an attractive, efficient solution to replace chemical surfactants in decontamination processes. In this work, the bacterial strains Pseudomonas cepacia CCT 6659, Pseudomonas aeruginosa UCP 0992, Pseudomonas aeruginosa ATCC 9027 and Pseudomonas aeruginosa ATCC 10145 were evaluated as biosurfactant producers in media containing different combinations and types of substrates and under different culture conditions. The biosurfactant produced by P. aeruginosa ATCC 10145 cultivated in a mineral medium composed of 5.0% glycerol and 2.0% glucose for 96 h was selected to formulate a biodetergent capable of removing heavy oil. The biosurfactant was able to reduce the surface tension of the medium to 26.40 mN/m, with a yield of approximately 12.00 g/L and a critical micelle concentration of 60.00 mg/L. The biosurfactant emulsified 97.40% and dispersed 98.00% of the motor oil. The detergent formulated with the biosurfactant also exhibited low toxicity in tests involving the microcrustacean Artemia salina and seeds of the vegetable Brassica oleracea. The detergent was compared to commercial formulations and removed 100% of the Special B1 Fuel Oil (OCB1) from different contaminated surfaces, demonstrating potential as a novel green remover with industrial applications.
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Affiliation(s)
- Charles Bronzo B. Farias
- Instituto Avançado de Tecnologia e Inovação, RECIFE, PE, Brasil
- Renorbio, Universidade Federal Rural de Pernambuco, RECIFE, PE, Brasil
| | - Rita de Cássia F. Soares da Silva
- Instituto Avançado de Tecnologia e Inovação, RECIFE, PE, Brasil
- Escola Icam Tech, Universidade Católica de Pernambuco, RECIFE, PE, Brasil
| | | | - Valdemir A. Santos
- Instituto Avançado de Tecnologia e Inovação, RECIFE, PE, Brasil
- Renorbio, Universidade Federal Rural de Pernambuco, RECIFE, PE, Brasil
- Escola Icam Tech, Universidade Católica de Pernambuco, RECIFE, PE, Brasil
| | - Leonie A. Sarubbo
- Instituto Avançado de Tecnologia e Inovação, RECIFE, PE, Brasil
- Renorbio, Universidade Federal Rural de Pernambuco, RECIFE, PE, Brasil
- Escola Icam Tech, Universidade Católica de Pernambuco, RECIFE, PE, Brasil
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22
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Palacios YB, Durantini JE, Heredia DA, Martínez SR, González de la Torre L, Durantini AM. Tuning the Polarity of Fullerene C 60 Derivatives for Enhanced Photodynamic Inactivation †. Photochem Photobiol 2021; 97:1431-1444. [PMID: 34115882 DOI: 10.1111/php.13465] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/08/2021] [Indexed: 12/21/2022]
Abstract
In this article, four novel fulleropyrrolidines derivatives were synthesized to study how the effect of polarity and positive charge distribution can influence the efficacy of photodynamic inactivation treatments to kill bacteria. The design of the photosensitizers was based on DFT calculations that allowed us to estimate the dipolar moment of the molecules. Neutral compounds bearing N-methyl bis-acetoxy-ethyl (1) and bis-hydroxyethyl (2) amine were the starting material to obtain the dicationic analogs N,N-dimethyl bis-methoxyethyl (3), and bis-acetoxy-ethyl) (4) methylammonio. As expected from fullerene C60 derivatives, compounds 1-4 absorb in the UV region, with a peak at 430 nm, a broader range of absorption up to 710 nm, and exhibit weak fluorescence emission in toluene and reverse micelles. In the biomimetic AOT micellar system, the highest singlet oxygen photosensitization was found for compounds 1, followed by 3, 2, and 4. Whereas 4 was the most effective reducing nitro blue tetrazolium in the presence of β-NADH. The influence of type I and type II mechanism on the photodynamic activity of compounds 3 and 4 was further examined in the presence of L-tryptophan and two reactive oxygen species scavengers. In vitro experiments indicated that the compounds with the highest dipolar moments, 3 (37.19 D) and 4 (38.46 D), inactivated methicillin-resistant Staphylococcus aureus and Escherichia coli bacteria using an energy dose <2.4 J cm-2 . No inactivation was observed for the neutral analogs with the lowest dipolar moments. These findings help to optimize sensitizer structures to improve photodynamic inactivation.
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Affiliation(s)
- Yohana B Palacios
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina
| | - Javier E Durantini
- IITEMA-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina
| | - Daniel A Heredia
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina
| | - Sol R Martínez
- IITEMA-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina
| | - Laura González de la Torre
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina
| | - Andrés M Durantini
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina
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