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Garcia SADS, da Rocha PBR, Souza BDS, Paz ATS, Negris ALC, Marreto RN, da Conceição EC, Bara MTF, Taveira SF. Enhanced Skin Permeation of Punicalagin after Topical Application of Pluronic Micelles or Vesicles Loaded with Lafoensia pacari Extract. PLANTA MEDICA 2022; 88:479-488. [PMID: 33862644 DOI: 10.1055/a-1464-1525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Punicalagin, the principal ellagitannin of Lafoensia pacari leaves, has proven antioxidant activity, and standardized extracts of L. pacari can be topically used for skin aging management. We hypothesized that Pluronic nanomicelles or vesicles could solubilize sufficiently large amounts of the standardized extracts of L. pacari and provide chemical stability to punicalagin. The standardized extracts of L. pacari were obtained with an optimized extraction procedure, and the antioxidant activity was characterized. Formulations containing Pluronic at 25% and 35% were obtained with or without Span 80. They were characterized by average diameter, polydispersity index, punicalagin content, physicochemical stability, and rheology. A release and skin permeation study was carried out in vertical diffusion cells. The extraction procedure allowed quantifying high punicalagin content (i.e., 141.61 ± 3.87 mg/g). The standardized extracts of L. pacari showed antioxidant activity for all evaluated methods. Pluronic at 25 and Pluronic at 35 with standardized extracts of L. pacari showed an average diameter of about 25 nm. The addition of Span 80 significantly increased the mean diameter by 15-fold (p < 0.05), indicating the spontaneous formation of vesicles. Pluronic formulations significantly protected punicalagin from chemical degradation (p < 0.05). Pluronic at 25 formulations presented as free-flowing liquid-like systems, while Pluronic at 35 resulted in an increase of about 44-fold in |ƞ*|. The addition of Span 80 significantly reduced the Pluronic sol-gel transition temperature (p < 0.05), indicating the formation of vesicles. Formulations with Span 80 significantly enhanced punicalagin skin permeation compared to formulations without Span 80 (p < 0.05). Formulations with Span 80 were demonstrated to be the most promising formulations, as they allowed significant permeation of punicalagin (about 80 to 315 µg/cm2), which has been shown to have antioxidant activity.
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Affiliation(s)
- Sandra Alves de Sousa Garcia
- Natural Products Research Laboratory (LPPN), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Priscila Bianca Rodrigues da Rocha
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Bruno Dos Santos Souza
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Andressa Tuane Santana Paz
- Natural Products Research Laboratory (LPPN), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Ana Luiza Caetano Negris
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Ricardo Neves Marreto
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Edemilson Cardoso da Conceição
- Natural Products Research Laboratory (LPPN), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Maria Teresa Freitas Bara
- Natural Products Research Laboratory (LPPN), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
| | - Stephânia Fleury Taveira
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy - Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
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2
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Nanoengineering of Gold Nanoparticles: Green Synthesis, Characterization, and Applications. CRYSTALS 2019. [DOI: 10.3390/cryst9120612] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The fundamental aspects of the manufacturing of gold nanoparticles (AuNPs) are discussed in this review. In particular, attention is devoted to the development of a simple and versatile method for the preparation of these nanoparticles. Eco-friendly synthetic routes, such as wet chemistry and biosynthesis with the aid of polymers, are of particular interest. Polymers can act as reducing and/or capping agents, or as soft templates leading to hybrid nanomaterials. This methodology allows control of the synthesis and stability of nanomaterials with novel properties. Thus, this review focus on a fundamental study of AuNPs properties and different techniques to characterize them, e.g., Transmission Electron Microscopy (TEM), Atomic Force Microscopy (AFM), UV-Visible spectroscopy, Dynamic Light Scattering (DLS), X-Ray Diffraction (XRD), X-Ray Photoelectron Spectroscopy, Small-angle X-Ray Scattering (SAXS), and rheology. Recently, AuNPs obtained by “green” synthesis have been applied in catalysis, in medicine, and as antibacterials, sensors, among others.
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Martín Del Campo A, García-Sandoval JP, Soltero JFA, Bautista F, Manero O, Puig JE. Shear-induced structural and thermodynamic phase transitions in micellar systems. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2017; 40:20. [PMID: 28236110 DOI: 10.1140/epje/i2017-11508-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 01/31/2017] [Indexed: 06/06/2023]
Abstract
In this contribution a methodology to compute and classify shear-induced structural and phase transitions in surfactant/water mixtures from rheological measurements is presented. Non-linear rheological experiments, considering variations in surfactant concentration and temperature, are analyzed. In particular, the parameters of the BMP (Bautista-Manero-Puig) model, obtained from the fitting of the shear stress versus shear rate data, which are functions of surfactant concentration and temperature, allow classifying structural and phase transition boundaries. To test this methodology, we consider the analysis of the shear-induced structural and phase transitions of two micellar systems, cetyltrimethylammonium tosylate (CTAT)/water as a function of CTAT concentrations and Pluronics P103/water as a function of temperature. We found that the CTAT/water system presents a first-order phase transition at 30 ° C, and around 31 to 32 wt.% from isotropic to nematic phases, whereas a 20 wt.% Pluronics P103 aqueous micellar solution has two second-order (structural) phase transitions, one from spherical to cylindrical micelles at 33.1 ° C, and another one from cylindrical micelles to a nematic phase at 35.8 ° C and one first-order phase transition around 37.9 ° C at high shear rates near to the cloud point previously reported. The proposed methodology is also able to identify the instability regions where the wormlike micelles are broken, producing the typical shear banding behavior.
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Affiliation(s)
- Angelina Martín Del Campo
- Departamentos de Ingeniería Química y Física, Universidad de Guadalajara, Blvd. M. García Barragán 1451, 44430, Guadalajara, Jal., Mexico
| | - J Paulo García-Sandoval
- Departamentos de Ingeniería Química y Física, Universidad de Guadalajara, Blvd. M. García Barragán 1451, 44430, Guadalajara, Jal., Mexico.
| | - J F Armando Soltero
- Departamentos de Ingeniería Química y Física, Universidad de Guadalajara, Blvd. M. García Barragán 1451, 44430, Guadalajara, Jal., Mexico
| | - Fernando Bautista
- Departamentos de Ingeniería Química y Física, Universidad de Guadalajara, Blvd. M. García Barragán 1451, 44430, Guadalajara, Jal., Mexico
| | - Octavio Manero
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, México D. F., Mexico
| | - Jorge E Puig
- Departamentos de Ingeniería Química y Física, Universidad de Guadalajara, Blvd. M. García Barragán 1451, 44430, Guadalajara, Jal., Mexico
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4
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Dutertre F, Benyahia L, Chassenieux C, Nicolai T. Dynamic Mechanical Properties of Networks of Wormlike Micelles Formed by Self-Assembled Comblike Amphiphilic Copolyelectrolytes. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabien Dutertre
- LUNAM Université,
UMR CNRS 6283 IMMM-PCI, Université du Maine, Avenue Olivier
Messiaen, 72085 Le Mans, Cedex 9, France
| | - Lazhar Benyahia
- LUNAM Université,
UMR CNRS 6283 IMMM-PCI, Université du Maine, Avenue Olivier
Messiaen, 72085 Le Mans, Cedex 9, France
| | - Christophe Chassenieux
- LUNAM Université,
UMR CNRS 6283 IMMM-PCI, Université du Maine, Avenue Olivier
Messiaen, 72085 Le Mans, Cedex 9, France
| | - Taco Nicolai
- LUNAM Université,
UMR CNRS 6283 IMMM-PCI, Université du Maine, Avenue Olivier
Messiaen, 72085 Le Mans, Cedex 9, France
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Bautista F, Tepale N, Fernández VVA, Landázuri G, Hernández E, Macías ER, Soltero JFA, Escalante JI, Manero O, Puig JE. A master dynamic flow diagram for the shear thickening transition in micellar solutions. SOFT MATTER 2016; 12:165-170. [PMID: 26448618 DOI: 10.1039/c5sm01625h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The shear thickening behavior of dilute micellar solutions of hexadecyltrimethylammonium-type surfactants with different counterions (tosylate, 3- and 4-fluorobenzoate, vinylbenzoate and salicylate) and of n-alkyltetradecylammonium bromide (CnTAB), with n = 14, 16 and 18, is examined here. These solutions undergo a shear thickening transition due to the formation of shear-induced structures (SISs) in the shear range studied. Here we report a relationship between the shear thickening intensity and the differences in the hydrophobicity of counterions according to the Hofmeister-like anion series, which leads to a master flow diagram. This master flow diagram is produced by plotting a normalized shear thickening intensity (Iη - 1)/(Imax - 1) versus CD/CD,max, where Iη is the shear-thickening intensity, defined as the largest viscosity obtained in the shear-thickening transition (STT) at a given surfactant concentration CD divided by the Newtonian viscosity η0, and Imax is the largest intensity value obtained in the STT at a surfactant concentration CD,max. The master flow diagram is built using several cetyltrimethylammonium-type surfactants with different counterions, according to a Hofmeister-like series, and by n-alkyltetradecylammonium bromide surfactants with different alkyl chain lengths.
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Affiliation(s)
- F Bautista
- Departamentos de Física, Universidad de Guadalajara, Boul. M. García Barragán #1451, Guadalajara, Jal. 44430, Mexico
| | - N Tepale
- Departamento de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Ave. San Claudio y 18 Sur, Puebla, Pue. 72000, Mexico
| | - V V A Fernández
- Departamento de Ciencias Tecnológicas, Universidad de Guadalajara, Av. Universidad #1115, Ocotlán, Jal. 47820, Mexico
| | - G Landázuri
- Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García Barragán #1451, Guadalajara, Jal. 44430, Mexico.
| | - E Hernández
- Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García Barragán #1451, Guadalajara, Jal. 44430, Mexico.
| | - E R Macías
- Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García Barragán #1451, Guadalajara, Jal. 44430, Mexico.
| | - J F A Soltero
- Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García Barragán #1451, Guadalajara, Jal. 44430, Mexico.
| | - J I Escalante
- Departamento de Química, Universidad de Guadalajara, Boul. M. García Barragán #1451, Guadalajara, Jal. 44430, Mexico
| | - O Manero
- Instituto de Investigación en Materiales, Universidad Nacioal Autónoma de Mexico, Apdo. Postal 70-360, Mexico D.F. 04510, Mexico
| | - J E Puig
- Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García Barragán #1451, Guadalajara, Jal. 44430, Mexico.
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Bravo-Anaya L, Macías E, Casillas N, Ramos FC, Fernández V, Soltero J, Larios-Durán E. The Scaling of Electrochemical Parameters of DNA Aqueous Solutions with Concentration and Temperature Through an Electrochemical Impedance Spectroscopy Study. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.03.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Chau M, Sriskandha SE, Thérien-Aubin H, Kumacheva E. Supramolecular Nanofibrillar Polymer Hydrogels. SUPRAMOLECULAR POLYMER NETWORKS AND GELS 2015. [DOI: 10.1007/978-3-319-15404-6_5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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8
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Effect of pH and temperature upon self-assembling process between poly(aspartic acid) and Pluronic F127. Colloids Surf B Biointerfaces 2014; 119:47-54. [DOI: 10.1016/j.colsurfb.2014.04.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 04/03/2014] [Accepted: 04/23/2014] [Indexed: 11/18/2022]
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9
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Warren NJ, Mykhaylyk OO, Mahmood D, Ryan AJ, Armes SP. RAFT aqueous dispersion polymerization yields poly(ethylene glycol)-based diblock copolymer nano-objects with predictable single phase morphologies. J Am Chem Soc 2014; 136:1023-33. [PMID: 24400622 PMCID: PMC3920722 DOI: 10.1021/ja410593n] [Citation(s) in RCA: 288] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
A poly(ethylene
glycol) (PEG) macromolecular chain transfer agent
(macro-CTA) is prepared in high yield (>95%) with 97% dithiobenzoate
chain-end functionality in a three-step synthesis starting from a
monohydroxy PEG113 precursor. This PEG113-dithiobenzoate
is then used for the reversible addition–fragmentation chain
transfer (RAFT) aqueous dispersion polymerization of 2-hydroxypropyl
methacrylate (HPMA). Polymerizations conducted under optimized conditions
at 50 °C led to high conversions as judged by 1H NMR
spectroscopy and relatively low diblock copolymer polydispersities
(Mw/Mn <
1.25) as judged by GPC. The latter technique also indicated good blocking
efficiencies, since there was minimal PEG113 macro-CTA
contamination. Systematic variation of the mean degree of polymerization
of the core-forming PHPMA block allowed PEG113-PHPMAx diblock copolymer spheres, worms, or vesicles
to be prepared at up to 17.5% w/w solids, as judged by dynamic light
scattering and transmission electron microscopy studies. Small-angle X-ray scattering (SAXS) analysis revealed that more exotic
oligolamellar vesicles were observed at 20% w/w solids when targeting
highly asymmetric diblock compositions. Detailed analysis of SAXS
curves indicated that the mean number of membranes per oligolamellar
vesicle is approximately three. A PEG113-PHPMAx phase diagram was constructed to enable the reproducible
targeting of pure phases, as opposed to mixed morphologies (e.g.,
spheres plus worms or worms plus vesicles). This new RAFT PISA formulation
is expected to be important for the rational and efficient synthesis
of a wide range of biocompatible, thermo-responsive PEGylated diblock
copolymer nano-objects for various biomedical applications.
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Affiliation(s)
- Nicholas J Warren
- Department of Chemistry, University of Sheffield , Brook Hill, Sheffield S3 7HF, United Kingdom
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10
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Barradas TN, Lopes LMA, Ricci-Júnior E, de Holanda e Silva KG, Mansur CRE. Development and characterization of micellar systems for application as insect repellents. Int J Pharm 2013; 454:633-40. [DOI: 10.1016/j.ijpharm.2013.05.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 05/17/2013] [Accepted: 05/19/2013] [Indexed: 10/26/2022]
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11
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Stress-Temperature Effects on Transitions in PEO17PPO60PEO17 Triblock Copolymer Micellar Solutions. J SURFACTANTS DETERG 2013. [DOI: 10.1007/s11743-013-1525-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Nambam JS, Philip J. Thermogelling properties of triblock copolymers in the presence of hydrophilic Fe3O4 nanoparticles and surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12044-12053. [PMID: 22845748 DOI: 10.1021/la302310y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We investigate the supramolecular structure formed by thermogelation of a triblock polymer in the presence of nanoparticles and surfactant using rheometry and small-angle X-ray scattering (SAXS). The triblock copolymer, nanoparticle, and surfactant used in this study are poly(oxyethylene-oxypropylene-oxyethylene), Pluronic F108, Fe(3)O(4) nanoparticles, and sodium dodecyl surfactant, respectively. Addition of 1-5 wt % of Fe(3)O(4) nanoparticle, of average particle size ~10 nm, in a weak template of F108 (15 wt %) shows a decrease in the onset of gelation temperature and dramatic alteration in the viscoelastic moduli. The nanocomposite samples show a linear viscoelastic regime up to 5% strain. The SAXS measurement shows that the intermicellar spacing of the supramolecular structure of pure F108 is ~16.5 nm, and the supramolecular structure is destroyed when nanoparticles and surfactants are incorporated in it. Further, the addition of anionic surfactant to nanocomposites leads to a dramatic reduction in the viscoelastic properties due to strong electrostatic barrier imparted by the surfactant headgroup that prevents the formation of hexagonally ordered micelles. Our results show that the thermogelation is due to the clustering of nanoparticles into a fractal network rather than a close-packed F108 micelles, in agreement with the recent findings in Pluronic F127-laponite systems.
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Affiliation(s)
- J S Nambam
- SMARTS, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
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13
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Ganguly R, Kuperkar K, Parekh P, Aswal V, Bahadur P. Phenol solubilization in aqueous Pluronic® solutions: Investigating the micellar growth and interaction as a function of Pluronic® composition. J Colloid Interface Sci 2012; 378:118-24. [DOI: 10.1016/j.jcis.2012.04.034] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 04/11/2012] [Accepted: 04/12/2012] [Indexed: 10/28/2022]
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14
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Blanazs A, Verber R, Mykhaylyk OO, Ryan AJ, Heath JZ, Douglas CWI, Armes SP. Sterilizable Gels from Thermoresponsive Block Copolymer Worms. J Am Chem Soc 2012; 134:9741-8. [PMID: 22582795 DOI: 10.1021/ja3024059] [Citation(s) in RCA: 305] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Adam Blanazs
- Department
of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, U.K
- Department
of Oral Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent,
Sheffield S10 2TA, U.K
| | - Robert Verber
- Department
of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, U.K
- Department
of Oral Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent,
Sheffield S10 2TA, U.K
| | - Oleksandr O. Mykhaylyk
- Department
of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, U.K
- Department
of Oral Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent,
Sheffield S10 2TA, U.K
| | - Anthony J. Ryan
- Department
of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, U.K
- Department
of Oral Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent,
Sheffield S10 2TA, U.K
| | - Jason Z. Heath
- Department
of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, U.K
- Department
of Oral Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent,
Sheffield S10 2TA, U.K
| | - C. W. Ian Douglas
- Department
of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, U.K
- Department
of Oral Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent,
Sheffield S10 2TA, U.K
| | - Steven P. Armes
- Department
of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, U.K
- Department
of Oral Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent,
Sheffield S10 2TA, U.K
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15
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Haldar S, Chattopadhyay K. Effects of arginine and other solution additives on the self-association of different surfactants: an investigation at single-molecule resolution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:5842-5849. [PMID: 21488688 DOI: 10.1021/la200580z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Fluorescence correlation spectroscopy is used to monitor the self-association of SDS and DTAB monomers at single-molecule resolution. Tetramethylrhodamine-5-maleimide (TMR) has been chosen as a probe because rhodamine dyes have been shown to bind surfactant micelles. Correlation functions obtained by FCS experiments have been fit using conventional discrete diffusional component analysis as well as the more recent maximum entropy method (MEM). Hydrodynamic radii calculated from the diffusion time values increase with surfactant concentration as the monomers self-associate. Effects of several solution additives on the self-association property of the surfactants have been studied. Urea and glycerol inhibit self-association, and arginine shows a dual nature. With SDS, arginine favors self-association, and with DTAB, it inhibits micelle formation. We propose surfactant self-association to be a "supersimplified" model of protein aggregation.
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Affiliation(s)
- Shubhasis Haldar
- Structural Biology and Bioinformatics Division, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, 4 Raja S. C. Mullick Road, Kolkata 700032, India
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Lopez-Diaz D, Castillo R. The Wormlike Micellar Solution made of a Zwitterionic Surfactant (TDPS), an Anionic Surfactant (SDS), and Brine in the Semidilute Regime. J Phys Chem B 2010; 114:8917-25. [DOI: 10.1021/jp102108y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David Lopez-Diaz
- Instituto de Física, Universidad Nacional Autónoma de México, P.O. Box 20-364, Mexico D. F. 01000
| | - Rolando Castillo
- Instituto de Física, Universidad Nacional Autónoma de México, P.O. Box 20-364, Mexico D. F. 01000
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17
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Bautista F, Muñoz M, Castillo-Tejas J, Pérez-López JH, Puig JE, Manero O. Critical Phenomenon Analysis of Shear-Banding Flow in Polymer-like Micellar Solutions. 1. Theoretical Approach. J Phys Chem B 2009; 113:16101-9. [DOI: 10.1021/jp906310k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fernando Bautista
- Departamentos de Física e Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451 Guadalajara, Jal. 44430, Mexico, Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Calz. Apizaquito S/N, Apizaco, Tlax. 90300, México, and Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal México, D.F. 04510, México
| | - Manuel Muñoz
- Departamentos de Física e Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451 Guadalajara, Jal. 44430, Mexico, Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Calz. Apizaquito S/N, Apizaco, Tlax. 90300, México, and Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal México, D.F. 04510, México
| | - Jorge Castillo-Tejas
- Departamentos de Física e Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451 Guadalajara, Jal. 44430, Mexico, Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Calz. Apizaquito S/N, Apizaco, Tlax. 90300, México, and Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal México, D.F. 04510, México
| | - Juan H. Pérez-López
- Departamentos de Física e Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451 Guadalajara, Jal. 44430, Mexico, Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Calz. Apizaquito S/N, Apizaco, Tlax. 90300, México, and Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal México, D.F. 04510, México
| | - Jorge E. Puig
- Departamentos de Física e Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451 Guadalajara, Jal. 44430, Mexico, Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Calz. Apizaquito S/N, Apizaco, Tlax. 90300, México, and Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal México, D.F. 04510, México
| | - Octavio Manero
- Departamentos de Física e Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451 Guadalajara, Jal. 44430, Mexico, Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Calz. Apizaquito S/N, Apizaco, Tlax. 90300, México, and Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal México, D.F. 04510, México
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