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Ferreira GA, Ram-On M, Talmon Y, Schillén K, Piculell L, Loh W. Complexes of Charged-Neutral Block Copolymers and Surfactants: Process-Dependent Features and Long-Term Stability of Their Aqueous Dispersions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4113-4124. [PMID: 36881854 DOI: 10.1021/acs.langmuir.2c03500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Aqueous dispersions of charged-neutral block copolymers (poly(acrylamide)-b-poly(acrylate)) complexed with an oppositely charged surfactant (dodecyltrimethylammonium) have been prepared by different approaches: the simple mixing of two solutions (MS approach) containing the block copolymer and surfactant, with their respective simple counterions, and dispersion of a freeze-dried complex salt prepared in the absence of simple counterions (CS approach). The CS particles were investigated under different conditions: dispersion of a CS in salt-free water and dispersion of a CS in a dilute salt solution, the latter condition yielding dispersions with the same composition as the MS process. Additionally, aged dispersions (up to 6 months) and dispersed complexes of the polyacrylate homopolymer and dodecyltrimethylammonium surfactant were evaluated. By employing different characterization techniques, it was seen that dispersions prepared by the MS approach display nanometric spherical particles with disordered cores, and poor colloidal stability, partially caused by the absence of surface charge (ζ-potential close to zero). Oppositely, anisometric particles were formed in CS dispersions and were large enough to sustain micellar cubic cores. The CS particles presented long-time colloidal stability, partially due to a net negative surface charge, but the stability varied with the length of the neutral block composing the corona. Our results demonstrate that all dispersed particles are metastable structures, with physicochemical properties strongly dependent on the preparation procedure, thus making these particles suitable for fundamental studies and potential applications where accurate control of their properties, including size, shape, internal structure, and stability, is desired.
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Affiliation(s)
- Guilherme A Ferreira
- Institute of Chemistry, University of Campinas (UNICAMP), 13083-970 Campinas, São Paulo, Brazil
| | - Maor Ram-On
- Department of Chemical Engineering and The Russell Berrie Nanotechnology Institute (RBNI), Technion─Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and The Russell Berrie Nanotechnology Institute (RBNI), Technion─Israel Institute of Technology, Haifa 3200003, Israel
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Lund University, SE-221 00 Lund, Sweden
| | - Lennart Piculell
- Division of Physical Chemistry, Department of Chemistry, Lund University, SE-221 00 Lund, Sweden
| | - Watson Loh
- Institute of Chemistry, University of Campinas (UNICAMP), 13083-970 Campinas, São Paulo, Brazil
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2
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Yao Y, Patel C, Vekariya RL, Yusa SI, Sangani CB, Duan Y, Pillai S, Patel H, Kumar NS, Khimani M. Synthesis and aggregation behaviour of thermo-responsive-b-poly(ionic liquid) diblock copolymers in aqueous solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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3
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Marras AE, Campagna TR, Vieregg JR, Tirrell MV. Physical Property Scaling Relationships for Polyelectrolyte Complex Micelles. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00743] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alexander E. Marras
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Trinity R. Campagna
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Jeffrey R. Vieregg
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Matthew V. Tirrell
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
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4
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Shah S, Leon L. Structural dynamics, phase behavior, and applications of polyelectrolyte complex micelles. Curr Opin Colloid Interface Sci 2021. [DOI: 10.1016/j.cocis.2021.101424] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Gioldasis C, Gergidis LN, Vlahos C. Micellization through complexation of oppositely charged diblock copolymers: Effects of composition, polymer architecture, salt of different valency, and thermoresponsive block. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | - Leonidas N. Gergidis
- Department of Materials Science and Engineering University of Ioannina Ioannina Greece
| | - Costas Vlahos
- Department of Chemistry University of Ioannina Ioannina Greece
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6
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van Hees IA, Hofman AH, Dompé M, van der Gucht J, Kamperman M. Temperature-responsive polyelectrolyte complexes for bio-inspired underwater adhesives. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110034] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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7
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Du G, Del Giudice A, Alfredsson V, Carnerup AM, Pavel NV, Loh W, Masci G, Nyström B, Galantini L, Schillén K. Effect of temperature on the association behavior in aqueous mixtures of an oppositely charged amphiphilic block copolymer and bile salt. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Magana JR, Sproncken CCM, Voets IK. On Complex Coacervate Core Micelles: Structure-Function Perspectives. Polymers (Basel) 2020; 12:E1953. [PMID: 32872312 PMCID: PMC7565781 DOI: 10.3390/polym12091953] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 12/31/2022] Open
Abstract
The co-assembly of ionic-neutral block copolymers with oppositely charged species produces nanometric colloidal complexes, known, among other names, as complex coacervates core micelles (C3Ms). C3Ms are of widespread interest in nanomedicine for controlled delivery and release, whilst research activity into other application areas, such as gelation, catalysis, nanoparticle synthesis, and sensing, is increasing. In this review, we discuss recent studies on the functional roles that C3Ms can fulfil in these and other fields, focusing on emerging structure-function relations and remaining knowledge gaps.
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Affiliation(s)
| | | | - Ilja K. Voets
- Laboratory of Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands; (J.R.M.); (C.C.M.S.)
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9
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Fehér B, Zhu K, Nyström B, Varga I, Pedersen JS. Effect of Temperature and Ionic Strength on Micellar Aggregates of Oppositely Charged Thermoresponsive Block Copolymer Polyelectrolytes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13614-13623. [PMID: 31577150 DOI: 10.1021/acs.langmuir.9b01896] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The self-assembly of two oppositely charged diblock copolymers that have a common thermosensitive nonionic block of poly(N-isopropylacrylamide) (pNIPAAM) has been investigated. The effect of the mixing ratio and total polymer concentrations on the self-assembly of the components and on the phase stability of the mixtures was studied by dynamic light scattering, electrophoretic mobility, and turbidimetry measurements in water at 20 °C. The effect of the competing electrostatic and hydrophobic interactions on the nanostructure of negatively charged electrostatically self-assembled micelles bearing a pNIPAAM corona was investigated by small-angle X-ray scattering (SAXS). The electrostatic and hydrophobic interactions were controlled independently by tuning the ionic strength (from pure water to 50 mM NaCl) and the temperature (20-50 °C) of the investigated mixtures. The SAXS data could be fitted by a spherical micelle model, which has a smoothly decaying radial profile and a Gaussian star term that describes the internal structure of the micellar structures and possible attractive interactions between the polymer chains. At high temperature, a cluster structure factor was included for describing the formation of bulky clusters of the formed micelles. At low temperature and ionic strength, the formation of micelles with a coacervate core and hydrated pNIPAAM shell was observed. The structural evolution of the self-assembled micelles with increasing ionic strength and temperature could be followed, and finally at high ionic strength and temperature, the formation of inverted micelles with a hydrophobic core and polyelectrolyte shell could be identified.
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Affiliation(s)
- Bence Fehér
- Institute of Chemistry , ELTE , Pázmány Péter sétány 1/A , Budapest 1117 , Hungary
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus C , Denmark
| | - Kaizheng Zhu
- Department of Chemistry , University of Oslo , P.O. Box 1033, Blindern , N-0315 Oslo , Norway
| | - Bo Nyström
- Department of Chemistry , University of Oslo , P.O. Box 1033, Blindern , N-0315 Oslo , Norway
| | - Imre Varga
- Institute of Chemistry , ELTE , Pázmány Péter sétány 1/A , Budapest 1117 , Hungary
| | - Jan Skov Pedersen
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus C , Denmark
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van Hees IA, Swinkels PJM, Fokkink RG, Velders AH, Voets IK, van der Gucht J, Kamperman M. Self-assembly of oppositely charged polyelectrolyte block copolymers containing short thermoresponsive blocks. Polym Chem 2019; 10:3127-3134. [PMID: 34912475 PMCID: PMC8612725 DOI: 10.1039/c9py00250b] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 03/27/2019] [Indexed: 12/12/2022]
Abstract
The assembly of oppositely charged block copolymers, containing small thermoresponsive moieties, was investigated as a function of salt concentration and temperature. Aqueous solutions of poly-[N-isopropylacrylamide]-b-poly[dimethylaminoethyl methacrylate] (NIPAM44-b-DMAEMA216) and PNIPAM-b-poly[acrylic acid]-b-PNIPAM (NIPAM35-b-AA200-b-NIPAM35) were mixed in equal charge stoichiometry, and analysed by light scattering (LS), NMR spectroscopy and small angle X-ray scattering (SAXS). At room temperature, two different micelle morphologies were found at different salt concentrations. At NaCl concentrations below 0.75 M, complex coacervate core micelles (C3M) with a PNIPAM corona were formed as a result of interpolyelectrolyte complexation. At NaCl concentrations exceeding 0.75 M, the C3M micelles inverted into PNIPAM cored micelles (PCM), containing a water soluble polyelectrolyte corona. This behavior is ascribed to the salt concentration dependence of both the lower critical solution temperature (LCST) of PNIPAM, and the complex coacervation. Above 0.75 M NaCl, the PNIPAM blocks are insoluble in water at room temperature, while complexation between the polyelectrolytes is prevented because of charge screening by the salt. Upon increasing the temperature, both types of micelles display a cloud point temperature (Tcp), despite the small thermoresponsive blocks, and aggregate into hydrogels. These hydrogels consist of a complexed polyelectrolyte matrix with microphase separated PNIPAM domains. Controlling the morphology and aggregation of temperature sensitive polyelectrolytes can be an important tool for drug delivery systems, or the application and hardening of underwater glues. The assembly of oppositely charged block copolymers, containing small thermoresponsive moieties, was investigated as a function of salt concentration and temperature.![]()
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Affiliation(s)
- I. A. van Hees
- Physical Chemistry and Soft Matter
- Wageningen University and Research
- 6708 WE Wageningen
- The Netherlands
| | - P. J. M. Swinkels
- Institute of Physics
- University of Amsterdam
- 1098 XH Amsterdam
- the Netherlands
| | - R. G. Fokkink
- Physical Chemistry and Soft Matter
- Wageningen University and Research
- 6708 WE Wageningen
- The Netherlands
| | - A. H. Velders
- Laboratory of BioNanoTechnology
- Wageningen University and Research
- Wageningen
- The Netherlands
| | - I. K. Voets
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - J. van der Gucht
- Physical Chemistry and Soft Matter
- Wageningen University and Research
- 6708 WE Wageningen
- The Netherlands
| | - M. Kamperman
- Polymer Science
- Zernike Institute for Advanced Materials
- University of Groningen
- 9747 AG Groningen
- The Netherlands
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11
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Shah S, Leon L. Structural transitions and encapsulation selectivity of thermoresponsive polyelectrolyte complex micelles. J Mater Chem B 2019; 7:6438-6448. [DOI: 10.1039/c9tb01194c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Polyelectrolyte complex micelles containing thermoresponsive coronas can exhibit varying morphologies and encapsulate multivalently charged therapeutics for drug delivery applications.
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Affiliation(s)
- Sachit Shah
- Department of Materials Science and Engineering
- University of Central Florida
- Orlando
- USA
| | - Lorraine Leon
- Department of Materials Science and Engineering
- University of Central Florida
- Orlando
- USA
- NanoScience Technology Center
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12
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Gineste S, Di Cola E, Amouroux B, Till U, Marty JD, Mingotaud AF, Mingotaud C, Violleau F, Berti D, Parigi G, Luchinat C, Balor S, Sztucki M, Lonetti B. Mechanistic Insights into Polyion Complex Associations. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02391] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Stéphane Gineste
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, Cedex 9 F-31062, Toulouse, France
| | - Emanuela Di Cola
- BioSoftMatter
Laboratorio Dip CBBM LITA, Universita di Milano, Via F lli Cervi
93 MI IT, 20090 Segrate, Italy
| | - Baptiste Amouroux
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, Cedex 9 F-31062, Toulouse, France
| | - Ugo Till
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, Cedex 9 F-31062, Toulouse, France
- Département
Sciences Agronomiques et Agroalimentaires, Université de Toulouse, Institut National Polytechnique de Toulouse - Ecole d’Ingénieurs de Purpan, 75 voie du TOEC, BP 57611, Cedex 03 F-31076 Toulouse, France
| | - Jean-Daniel Marty
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, Cedex 9 F-31062, Toulouse, France
| | - Anne-Françoise Mingotaud
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, Cedex 9 F-31062, Toulouse, France
| | - Christophe Mingotaud
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, Cedex 9 F-31062, Toulouse, France
| | - Frédéric Violleau
- Laboratoire
de Chimie Agro-industrielle (LCA), Université de Toulouse, INRA, INPT, INP-EI PURPAN, Toulouse, France
| | - Debora Berti
- Department
of Chemistry “Ugo Schiff”, University of Florence and CSGI, Via della Lastruccia 3, 50019 Sesto Fiorentino Firenze, Italy
| | - Giacomo Parigi
- Department
of Chemistry Ugo Schiff and Magnetic Resonance Center (CERM), University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino Firenze, Italy
| | - Claudio Luchinat
- Department
of Chemistry Ugo Schiff and Magnetic Resonance Center (CERM), University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino Firenze, Italy
| | - Stéphanie Balor
- Plateforme
METi, Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Michael Sztucki
- European Synchrotron
Radiation Facility-71, avenue des Martyrs,
CS 40220, Cedex 9 38043 Grenoble, France
| | - Barbara Lonetti
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, Cedex 9 F-31062, Toulouse, France
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