1
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Placci M, Giannotti MI, Muro S. Polymer-based drug delivery systems under investigation for enzyme replacement and other therapies of lysosomal storage disorders. Adv Drug Deliv Rev 2023; 197:114683. [PMID: 36657645 PMCID: PMC10629597 DOI: 10.1016/j.addr.2022.114683] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/30/2022] [Accepted: 12/25/2022] [Indexed: 01/18/2023]
Abstract
Lysosomes play a central role in cellular homeostasis and alterations in this compartment associate with many diseases. The most studied example is that of lysosomal storage disorders (LSDs), a group of 60 + maladies due to genetic mutations affecting lysosomal components, mostly enzymes. This leads to aberrant intracellular storage of macromolecules, altering normal cell function and causing multiorgan syndromes, often fatal within the first years of life. Several treatment modalities are available for a dozen LSDs, mostly consisting of enzyme replacement therapy (ERT) strategies. Yet, poor biodistribution to main targets such as the central nervous system, musculoskeletal tissue, and others, as well as generation of blocking antibodies and adverse effects hinder effective LSD treatment. Drug delivery systems are being studied to surmount these obstacles, including polymeric constructs and nanoparticles that constitute the focus of this article. We provide an overview of the formulations being tested, the diseases they aim to treat, and the results observed from respective in vitro and in vivo studies. We also discuss the advantages and disadvantages of these strategies, the remaining gaps of knowledge regarding their performance, and important items to consider for their clinical translation. Overall, polymeric nanoconstructs hold considerable promise to advance treatment for LSDs.
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Affiliation(s)
- Marina Placci
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute for Science and Technology (BIST), Barcelona 08028, Spain
| | - Marina I Giannotti
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute for Science and Technology (BIST), Barcelona 08028, Spain; CIBER-BBN, ISCIII, Barcelona, Spain; Department of Materials Science and Physical Chemistry, University of Barcelona, Barcelona 08028, Spain
| | - Silvia Muro
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute for Science and Technology (BIST), Barcelona 08028, Spain; Institute of Catalonia for Research and Advanced Studies (ICREA), Barcelona 08010, Spain; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD 20742, USA; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
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2
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Xiao J, Liu Y, Steinmetz V, Çaǧlar M, Mc Hugh J, Baikie T, Gauriot N, Nguyen M, Ruggeri E, Andaji-Garmaroudi Z, Stranks SD, Legrand L, Barisien T, Friend RH, Greenham NC, Rao A, Pandya R. Optical and Electronic Properties of Colloidal CdSe Quantum Rings. ACS NANO 2020; 14:14740-14760. [PMID: 33044058 DOI: 10.1021/acsnano.0c01752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Luminescent colloidal CdSe nanorings are a recently developed type of semiconductor structure that have attracted interest due to the potential for rich physics arising from their nontrivial toroidal shape. However, the exciton properties and dynamics of these materials with complex topology are not yet well understood. Here, we use a combination of femtosecond vibrational spectroscopy, temperature-resolved photoluminescence (PL), and single-particle measurements to study these materials. We find that on transformation of CdSe nanoplatelets to nanorings, by perforating the center of platelets, the emission lifetime decreases and the emission spectrum broadens due to ensemble variations in the ring size and thickness. The reduced PL quantum yield of nanorings (∼10%) compared to platelets (∼30%) is attributed to an enhanced coupling between (i) excitons and CdSe LO-phonons at 200 cm-1 and (ii) negatively charged selenium-rich traps, which give nanorings a high surface charge (∼-50 mV). Population of these weakly emissive trap sites dominates the emission properties with an increased trap emission at low temperatures relative to excitonic emission. Our results provide a detailed picture of the nature of excitons in nanorings and the influence of phonons and surface charge in explaining the broad shape of the PL spectrum and the origin of PL quantum yield losses. Furthermore, they suggest that the excitonic properties of nanorings are not solely a consequence of the toroidal shape but also a result of traps introduced by puncturing the platelet center.
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Affiliation(s)
- James Xiao
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Yun Liu
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Violette Steinmetz
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Mustafa Çaǧlar
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Jeffrey Mc Hugh
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Tomi Baikie
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Nicolas Gauriot
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Malgorzata Nguyen
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Edoardo Ruggeri
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Zahra Andaji-Garmaroudi
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
- Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, CB3 0AS, Cambridge, United Kingdom
| | - Samuel D Stranks
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, 4 Place Jussieu, F-75005 Paris, France
| | - Laurent Legrand
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, 4 Place Jussieu, F-75005 Paris, France
| | - Thierry Barisien
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Richard H Friend
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Neil C Greenham
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Akshay Rao
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
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3
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Facciotti C, Saggiomo V, Bunschoten A, Fokkink R, Hove JBT, Wang J, Velders AH. Cyclodextrin-based complex coacervate core micelles with tuneable supramolecular host-guest, metal-to-ligand and charge interactions. SOFT MATTER 2018; 14:9542-9549. [PMID: 30357241 DOI: 10.1039/c8sm01504j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Micelles have been recognized as versatile platforms for different biomedical applications, from bioimaging to drug delivery. Complex coacervate core micelles present great advantages compared to traditional micelles, however controlling the number of charges per core-unit and the stability is still a challenge. We here present cyclodextrin-based complex coacervate core micelles where the charge per core-unit can be straightforwardly tuned by cyclodextrin host-guest interactions. By varying the ratio between two adamantane guest molecules, 1-adamantanecarboxylic acid and 1,3-adamantanediacetic acid, the charge of the monomeric core-units can be finely tuned from 6- to 9-. By adding an adamantane bislinker, monomeric core-units can be combined together in dimeric and polymeric structures, increasing the micelles' stability. The orthogonal supramolecular host-guest and coordination-chemistry allows for well-controlled cyclodextrin-based complex coacervate core micelles that offer a versatile platform for designing future, e.g., responsive systems.
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Affiliation(s)
- Camilla Facciotti
- Laboratory of BioNanoTechnology, Wageningen University & Research, Bornse Weilanden 9, 6708WG, Wageningen, The Netherlands.
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4
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Kumar A, Hertel B, Müllen K. Self-Assembly and Responsive Behavior of Poly(peptide)-Based Copolymers. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Avneesh Kumar
- Institute of Organic Chemistry; Technical University of Darmstadt; L2/02, Room No. 554, Alarich-Weiss-Str. 4 Darmstadt 64287 Germany
| | - Brigitte Hertel
- Institute of Biology; TU Darmstadt; Schnittspahnstrasse 3 64287 Darmstadt Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer ResearchMainz; Ackermannweg 10 55128 Mainz Germany
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5
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6
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Biopolymer-based coacervates: Structures, functionality and applications in food products. Curr Opin Colloid Interface Sci 2017. [DOI: 10.1016/j.cocis.2017.03.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Pseudo-semi interpenetrating polyurethane network based on polyalkylene glycols mixture: improving the physical, mechanical, and thermal properties. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-016-4010-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Motealleh A, Kehr NS. Nanocomposite Hydrogels and Their Applications in Tissue Engineering. Adv Healthc Mater 2017; 6. [PMID: 27900856 DOI: 10.1002/adhm.201600938] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/18/2016] [Indexed: 01/21/2023]
Abstract
Nanocomposite (NC) hydrogels, organic-inorganic hybrid materials, are of great interest as artificial three-dimensional (3D) biomaterials for biomedical applications. NC hydrogels are prepared in water by chemically or physically cross-linking organic polymers with nanomaterials (NMs). The incorporation of hard inorganic NMs into the soft organic polymer matrix enhances the physical, chemical, and biological properties of NC hydrogels. Therefore, NC hydrogels are excellent candidates for artificial 3D biomaterials, particularly in tissue engineering applications, where they can mimic the chemical, mechanical, electrical, and biological properties of native tissues. A wide range of functional NMs and synthetic or natural organic polymers have been used to design new NC hydrogels with novel properties and tailored functionalities for biomedical uses. Each of these approaches can improve the development of NC hydrogels and, thus, provide advanced 3D biomaterials for biomedical applications.
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Affiliation(s)
- Andisheh Motealleh
- Physikalisches Institut and Center for Nanotechnology; Westfälische Wilhelms-Universität Münster; Heisenbergstrasse 11 D-48149 Münster Germany
| | - Nermin Seda Kehr
- Physikalisches Institut and Center for Nanotechnology; Westfälische Wilhelms-Universität Münster; Heisenbergstrasse 11 D-48149 Münster Germany
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9
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Catrouillet S, Bouteiller L, Boyron O, Lorthioir C, Nicol E, Pensec S, Colombani O. Patchy Supramolecular Bottle-Brushes Formed by Solution Self-Assembly of Bis(urea)s and Tris(urea)s Decorated by Two Incompatible Polymer Arms. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8900-8908. [PMID: 27459308 DOI: 10.1021/acs.langmuir.6b01609] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In an attempt to design urea-based Janus nanocylinders through a supramolecular approach, nonsymmetrical bis(urea)s and tris(urea)s decorated by two incompatible polymer arms, namely, poly(styrene) (PS) and poly(isobutylene) (PIB), were synthesized using rather straightforward organic and polymer chemistry techniques. Light scattering experiments revealed that these molecules self-assembled in cyclohexane by cooperative hydrogen bonds. The extent of self-assembly was limited for the bis(urea)s. On the contrary, reasonably anisotropic 1D structures (small nanocylinders) could be obtained with the tris(urea)s (Nagg ∼ 50) which developed six cooperative hydrogen bonds per molecule. (1)H transverse relaxation measurements and NOESY NMR experiments in cyclohexane revealed that perfect Janus nanocylinders with one face consisting of only PS and the other of PIB were not obtained. Nevertheless, phase segregation between the PS and PIB chains occurred to a large extent, resulting in patchy cylinders containing well separated domains of PIB and PS chains. Reasons for this behavior were proposed, paving the way to improve the proposed strategy toward true urea-based supramolecular Janus nanocylinders.
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Affiliation(s)
- Sylvain Catrouillet
- LUNAM Université, Université du Maine, IMMM - UMR CNRS 6283, Université du Maine , av. O. Messiaen, 72085 cedex 9 Le Mans, France
| | - Laurent Bouteiller
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères , 4 Place Jussieu, F-75005 Paris, France
| | - Olivier Boyron
- Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265, Bat 308F, 43 Bd du 11 Novembre 1918, 69100 Villeurbanne, France
| | - Cédric Lorthioir
- Université Paris Est, ICMPE (UMR7182), CNRS, UPEC , F-94320 Thiais, France
| | - Erwan Nicol
- LUNAM Université, Université du Maine, IMMM - UMR CNRS 6283, Université du Maine , av. O. Messiaen, 72085 cedex 9 Le Mans, France
| | - Sandrine Pensec
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères , 4 Place Jussieu, F-75005 Paris, France
| | - Olivier Colombani
- LUNAM Université, Université du Maine, IMMM - UMR CNRS 6283, Université du Maine , av. O. Messiaen, 72085 cedex 9 Le Mans, France
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10
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Gröschel AH, Müller AHE. Self-assembly concepts for multicompartment nanostructures. NANOSCALE 2015; 7:11841-76. [PMID: 26123217 DOI: 10.1039/c5nr02448j] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Compartmentalization is ubiquitous to many biological and artificial systems, be it for the separate storage of incompatible matter or to isolate transport processes. Advancements in the synthesis of sequential block copolymers offer a variety of tools to replicate natural design principles with tailor-made soft matter for the precise spatial separation of functionalities on multiple length scales. Here, we review recent trends in the self-assembly of amphiphilic block copolymers to multicompartment nanostructures (MCNs) under (semi-)dilute conditions, with special emphasis on ABC triblock terpolymers. The intrinsic immiscibility of connected blocks induces short-range repulsion into discrete nano-domains stabilized by a third, soluble block or molecular additive. Polymer blocks can be synthesized from an arsenal of functional monomers directing self-assembly through packing frustration or response to various fields. The mobility in solution further allows the manipulation of self-assembly processes into specific directions by clever choice of environmental conditions. This review focuses on practical concepts that direct self-assembly into predictable nanostructures, while narrowing particle dispersity with respect to size, shape and internal morphology. The growing understanding of underlying self-assembly mechanisms expands the number of experimental concepts providing the means to target and manipulate progressively complex superstructures.
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Affiliation(s)
- André H Gröschel
- Molecular Materials, Department of Applied Physics, Aalto University School of Science, FIN-00076 Aalto, Espoo, Finland.
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11
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Kehr NS, Atay S, Ergün B. Self-assembled Monolayers and Nanocomposite Hydrogels of Functional Nanomaterials for Tissue Engineering Applications. Macromol Biosci 2014; 15:445-63. [DOI: 10.1002/mabi.201400363] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nermin Seda Kehr
- Physikalisches Institut and Center for Nanotechnology; Westfälische Wilhelms-Universität Münster; Heisenbergstrasse 11 D-48149 Münster Germany
| | - Seda Atay
- Department of Nanotechnology and Nanomedicine; Hacettepe University; 06800 Ankara Turkey
| | - Bahar Ergün
- Department of Chemistry; Biochemistry Division; Hacettepe University; 06800 Ankara Turkey
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12
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Marsat JN, Stahlhut F, Laschewsky A, Berlepsch HV, Böttcher C. Multicompartment micelles from silicone-based triphilic block copolymers. Colloid Polym Sci 2013. [DOI: 10.1007/s00396-013-3001-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Tan Y, Yildiz UH, Wei W, Waite JH, Miserez A. Layer-by-layer polyelectrolyte deposition: a mechanism for forming biocomposite materials. Biomacromolecules 2013; 14:1715-26. [PMID: 23600626 DOI: 10.1021/bm400448w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Complex coacervates prepared from poly(aspartic acid) (polyAsp) and poly-l-histidine (polyHis) were investigated as models of the metastable protein phases used in the formation of biological structures such as squid beak. When mixed, polyHis and polyAsp form coacervates whereas poly-l-glutamic acid (polyGlu) forms precipitates with polyHis. Layer-by-layer (LbL) structures of polyHis-polyAsp on gold substrates were compared with those of precipitate-forming polyHis-polyGlu by monitoring with iSPR and QCM-D. PolyHis-polyAsp LbL was found to be stiffer than polyHis-polyGlu LbL with most water evicted from the structure but with sufficient interfacial water remaining for molecular rearrangement to occur. This thin layer is believed to be fluid and like preformed coacervate films, capable of spreading over both hydrophilic ethylene glycol as well as hydrophobic monolayers. These results suggest that coacervate-forming polyelectrolytes deserve consideration for potential LbL applications and point to LbL as an important process by which biological materials form.
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Affiliation(s)
- Yerpeng Tan
- Biomolecular Science and Engineering Program, University of California, Santa Barbara , Santa Barbara, California 93106, United States
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14
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Steinhauer W, Hoogenboom R, Keul H, Moeller M. Block and Gradient Copolymers of 2-Hydroxyethyl Acrylate and 2-Methoxyethyl Acrylate via RAFT: Polymerization Kinetics, Thermoresponsive Properties, and Micellization. Macromolecules 2013. [DOI: 10.1021/ma302606x] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Wiktor Steinhauer
- DWI an der
RWTH Aachen e.V.
and Institute of Technical and Macromolecular Chemistry, RWTH Aachen, Forckenbeckstrasse 50, 52056 Aachen, Germany
| | - Richard Hoogenboom
- DWI an der
RWTH Aachen e.V.
and Institute of Technical and Macromolecular Chemistry, RWTH Aachen, Forckenbeckstrasse 50, 52056 Aachen, Germany
- Supramolecular Chemistry Group,
Department of Organic Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
| | - Helmut Keul
- DWI an der
RWTH Aachen e.V.
and Institute of Technical and Macromolecular Chemistry, RWTH Aachen, Forckenbeckstrasse 50, 52056 Aachen, Germany
| | - Martin Moeller
- DWI an der
RWTH Aachen e.V.
and Institute of Technical and Macromolecular Chemistry, RWTH Aachen, Forckenbeckstrasse 50, 52056 Aachen, Germany
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15
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Ubbink J. Soft matter approaches to structured foods: from "cook-and-look" to rational food design? Faraday Discuss 2012; 158:9-35; discussion 105-24. [PMID: 23234158 DOI: 10.1039/c2fd20125a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Developments in soft matter physics are discussed within the context of food structuring. An overview is given of soft matter-based approaches used in food, and a relation is established between soft matter approaches and food technology, food creation, product development and nutrition. Advances in food complexity and food sustainability are discussed from a physical perspective, and the potential for future developments is highlighted.
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Affiliation(s)
- Job Ubbink
- Food Concept & Physical Design "The Mill", Mühleweg 10, CH-4112 Flüh, Switzerland.
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16
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Kehr NS, Prasetyanto EA, Benson K, Ergün B, Galstyan A, Galla HJ. Periodic Mesoporous Organosilica-Based Nanocomposite Hydrogels as Three-Dimensional Scaffolds. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206951] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Kehr NS, Prasetyanto EA, Benson K, Ergün B, Galstyan A, Galla HJ. Periodic Mesoporous Organosilica-Based Nanocomposite Hydrogels as Three-Dimensional Scaffolds. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201206951] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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18
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Sanna R, Sanna D, Alzari V, Nuvoli D, Scognamillo S, Piccinini M, Lazzari M, Gioffredi E, Malucelli G, Mariani A. Synthesis and characterization of graphene-containing thermoresponsive nanocomposite hydrogels of poly(N
-vinylcaprolactam) prepared by frontal polymerization. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26215] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Coelho S, Moreno-Flores S, Toca-Herrera JL, Coelho MA, Carmo Pereira M, Rocha S. Nanostructure of polysaccharide complexes. J Colloid Interface Sci 2011; 363:450-5. [DOI: 10.1016/j.jcis.2011.07.098] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 07/27/2011] [Accepted: 07/28/2011] [Indexed: 10/17/2022]
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20
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Giannotti MI, Esteban O, Oliva M, García-Parajo MF, Sanz F. pH-Responsive Polysaccharide-Based Polyelectrolyte Complexes As Nanocarriers for Lysosomal Delivery of Therapeutic Proteins. Biomacromolecules 2011; 12:2524-33. [DOI: 10.1021/bm2003384] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Marina I. Giannotti
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, 50018, Spain
- Physical Chemistry Department, University of Barcelona (UB), Martí i Franquès 1-3, Barcelona,08028, Spain
| | - Olga Esteban
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, 50018, Spain
| | - Mireia Oliva
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, 50018, Spain
- Pharmaceutical Technology Unit, School of Pharmacy, University of Barcelona (UB), Av. Joan XXIII s/n, Barcelona, 08028, Spain
| | - María F. García-Parajo
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, 50018, Spain
- ICREA-Institució Catalana de Recerca i Estudis Avançats, Barcelona, 08010, Spain
| | - Fausto Sanz
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, 50018, Spain
- Physical Chemistry Department, University of Barcelona (UB), Martí i Franquès 1-3, Barcelona,08028, Spain
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21
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Polyelectrolyte microgels based on poly-N-isopropylacrylamide: influence of charge density on microgel properties, binding of poly-diallyldimethylammonium chloride, and properties of polyelectrolyte complexes. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2401-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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22
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Kleinen J, Richtering W. Rearrangements in and Release from Responsive Microgel−Polyelectrolyte Complexes Induced by Temperature and Time. J Phys Chem B 2011; 115:3804-10. [DOI: 10.1021/jp2014594] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jochen Kleinen
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany
| | - Walter Richtering
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany
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23
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Marsat JN, Heydenreich M, Kleinpeter E, Berlepsch HV, Böttcher C, Laschewsky A. Self-Assembly into Multicompartment Micelles and Selective Solubilization by Hydrophilic−Lipophilic−Fluorophilic Block Copolymers. Macromolecules 2011. [DOI: 10.1021/ma200032j] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jean-Noël Marsat
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
| | - Matthias Heydenreich
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
| | - Erich Kleinpeter
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
| | - Hans v. Berlepsch
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, D-14195 Berlin, Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, D-14195 Berlin, Germany
| | - André Laschewsky
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
- Fraunhofer Institute for Applied Polymer Research, D-14476 Potsdam-Golm, Germany
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Zehm D, Laschewsky A, Heunemann P, Gradzielski M, Prévost S, Liang H, Rabe JP, Lutz JF. Synthesis and self-assembly of amphiphilic semi-brush and dual brush block copolymers in solution and on surfaces. Polym Chem 2011. [DOI: 10.1039/c0py00200c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Siebert M, Henke A, Eckert T, Richtering W, Keul H, Möller M. Polystyrene-block-polyglycidol micelles cross-linked with titanium tetraisopropoxide. laser light and small-angle X-ray scattering studies on their formation in solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:16791-16800. [PMID: 20942422 DOI: 10.1021/la102780y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Hybrid micelles from polystyrene-block-polyglycidol (PS-b-PG) copolymers with chemically cross-linked cores by titanium tetraisopropoxide (Ti(OC(3)H(7))(4)) were prepared in toluene solution. Additionally, micellization of PS-b-PG copolymers with different mass fractions of polyglycidol (x(PG)), was studied by static and dynamic light scattering as well as small-angle X-ray scattering. It was observed that copolymers with x(PG) smaller than 0.5 self-assembled in toluene into spherical core-shell micelles with hydrodynamic radii R(h) between 12 and 23 nm. On the other hand, copolymers with larger PG content formed particles with R(h) = 50-70 nm and aggregation numbers of several thousands. The presence of these aggregates in solution was attributed to the nonequilibrated form of block copolymers upon dissolving, most probably due to hydrogen bonding. In the following, spherical PS-b-PG micelles were loaded in toluene with hydrochloric acid and titanium tetraisopropoxide. Confined hydrolysis of Ti(OC(3)H(7))(4) induced by HCl in the micellar core was confirmed by small-angle X-ray scattering experiments. The subsequent condensation of the precursor with hydroxyl groups of polyglycidol chains led to covalently stabilized hybrid organic-inorganic particles. The presence of cross-linked PS-b-PG micelles was proven in two ways. First, micelles with "frozen" core showed stable hydrodynamic size in time upon dilution below critical micellization concentration while non-cross-linked PS-b-PG micelles underwent disintegration under the same conditions within several hours. Second, light scattering experiments revealed the presence of stable, swollen particles in N,N-dimethylformamide, which is a good solvent for both blocks.
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Affiliation(s)
- Melanie Siebert
- DWI and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Pauwelsstrasse 8, 52056 Aachen, Germany
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26
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Kleinen J, Klee A, Richtering W. Influence of architecture on the interaction of negatively charged multisensitive poly(N-isopropylacrylamide)-co-methacrylic acid microgels with oppositely charged polyelectrolyte: absorption vs adsorption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:11258-11265. [PMID: 20377221 DOI: 10.1021/la100579b] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Two sets of core-shell microgels composed of temperature-sensitive poly(N-isopropylacrylamide) (PNiPAM) with different spatial distribution of pH-sensitive methacrylic acid (MAA) groups were prepared. The cores consist of either PNiPAM (neutral core; nc) or PNiPAM-co-MAA (charged core; cc). A charged shell existing of PNiPAM-co-MAA was added to the neutral core (yielding neutral core-charged shell; nccs), on the charged core, on the other hand, a neutral shell of PNiPAM was added (charged core-neutral shell; ccns). Complexes of these microgels with positively charged poly(diallyldimethylammonium chloride) (PDADMAC) of different molar masses were prepared. The amount of bound polyelectrolyte was quantified, and the microgel-polyelectrolyte complexes were characterized with respect to electrophoretic mobility and hydrodynamic radius. The penetration of polyelectrolyte into the microgel was also monitored by means of lifetime analysis of a fluorescent dye covalently bound to poly(L-lysine) providing information on the probe's local environment. The architecture of the microgel has a significant influence on the interaction with oppositely charged polyelectrolyte. Complexes with microgel with the charged shell tend to flocculate at charge ratios of 1 and are thus similar to polyelectrolyte complexes with rigid colloidal particles. Complexes with microgels that consist of a charged core and a neutral shell show very different properties: They are still temperature sensitive and reveal an influence of the polyelectrolyte's chain length. Low molecular weight PDADMAC can penetrate through the neutral shell into the charged core, and thus nearly no charge reversal occurs. The high-MW polyelectrolyte does not penetrate fully and leads to charge reversal. The results demonstrate that microgels are able to absorb or adsorb polyelectrolytes depending on the polyelectrolyte's chain length and the microgels architecture. Complexes with different surface properties and different colloidal stability can be prepared, and polyelectrolytes can be encapsulated in the microgel core. Thus, multisensitive core-shell microgels combine permeability and compartmentalization on a nanometer length scale and provide unique opportunities for applications in controlled uptake and release.
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Affiliation(s)
- Jochen Kleinen
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany
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27
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Johansson C, Gernandt J, Bradley M, Vincent B, Hansson P. Interaction between lysozyme and colloidal poly(NIPAM-co-acrylic acid) microgels. J Colloid Interface Sci 2010; 347:241-51. [DOI: 10.1016/j.jcis.2010.03.072] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 03/29/2010] [Accepted: 03/31/2010] [Indexed: 10/19/2022]
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He P, Liu J, Liu K, Ding L, Yan J, Gao D, Fang Y. Preparation of novel organometallic derivatives of cholesterol and their gel-formation properties. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.04.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Beheshti N, Zhu K, Kjøniksen AL, Nyström B. Characterization of complexation and phase behavior of mixed systems of unmodified and hydrophobically modified oppositely charged polyelectrolytes. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2239-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Schachschal S, Balaceanu A, Melian C, Demco DE, Eckert T, Richtering W, Pich A. Polyampholyte Microgels with Anionic Core and Cationic Shell. Macromolecules 2010. [DOI: 10.1021/ma100184h] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Susann Schachschal
- Department of Macromolecular Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Andreea Balaceanu
- DWI RWTH Aachen e.V., Institut of Technical and Macromolekular Chemistry, RWTH Aachen University, Pauwelsstr. 8, D-52056 Aachen, Germany
| | - Claudiu Melian
- DWI RWTH Aachen e.V., Institut of Technical and Macromolekular Chemistry, RWTH Aachen University, Pauwelsstr. 8, D-52056 Aachen, Germany
| | - Dan E. Demco
- DWI RWTH Aachen e.V., Institut of Technical and Macromolekular Chemistry, RWTH Aachen University, Pauwelsstr. 8, D-52056 Aachen, Germany
| | - Thomas Eckert
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany
| | - Walter Richtering
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany
| | - Andrij Pich
- DWI RWTH Aachen e.V., Institut of Technical and Macromolekular Chemistry, RWTH Aachen University, Pauwelsstr. 8, D-52056 Aachen, Germany
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Mendrek S, Mendrek A, Adler HJ, Dworak A, Kuckling D. Temperature-sensitive behaviour of poly(glycidol)-b-poly(N-isopropylacrylamide) block copolymers. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2203-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Future challenges in colloid and interfacial science. Colloid Polym Sci 2010; 288:123-131. [PMID: 20098719 PMCID: PMC2808514 DOI: 10.1007/s00396-009-2176-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 12/01/2009] [Accepted: 12/04/2009] [Indexed: 11/17/2022]
Abstract
This article deals with topics where I expect special future challenges, exemplifying these by experiments out of my own department. One area where I expect large progress also in view of many technical developments in the past concerns the understanding of the structure of fluid interfaces at the atomic level. It is shown by non-linear optical spectroscopies that the free water surface is ice-like and can be “liquefied” by ion adsorption. X-ray fluorescence from the interface demonstrates that ion binding is very specific which cannot be explained by existing theories. A second major area are nonequilibrium features, and one of the old and new ones here is nucleation and growth. This presentation concentrates on effects produced by ultrasound, a well-defined trigger of gas bubble formation. It exhibits high potential for chemistry at extreme conditions but with a reactor at normal conditions. It has special importance for treatment of surfaces that can be also manipulated via controlled surface energies. A third area will concern complex and smart systems with multiple functions in materials and biosciences. As next generation, I anticipate those with feedback control, and examples on this are self-repairing coatings.
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Moschakis T, Murray BS, Biliaderis CG. Modifications in stability and structure of whey protein-coated o/w emulsions by interacting chitosan and gum arabic mixed dispersions. Food Hydrocoll 2010. [DOI: 10.1016/j.foodhyd.2009.07.001] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liberatore MW, Wyatt NB, Henry M, Dubin PL, Foun E. Shear-induced phase separation in polyelectrolyte/mixed micelle coacervates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13376-13383. [PMID: 19852482 DOI: 10.1021/la903260r] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A quantitative study of the shear-induced phase separation of a polycation/anionic-nonionic micelle coacervate is presented. Simultaneous rheology and small-angle light scattering (SALS) measurements allow the elucidation of micrometer-scale phase separation under flow in three coacervate solutions. Below 18 degrees C, all three of the coacervate solutions are optically clear Newtonian fluids across the entire shear rate range investigated. Once a critical temperature range and/or shear rate is achieved, phase separation is observed in the small-angle light scattering images and the fluid exhibits shear thinning. Two definitive SALS patterns demonstrate the appearance of circular droplets at low shear rates near the critical temperature and ellipsoidal droplets at higher temperatures and shear rates. The shear-induced droplets range in size from approximately 1 to 4 mum. The ellipsoidal droplets have aspect ratios as high as 4. A conceptual picture in which shear flow extends the polyelectrolyte chains of the clear coacervate liquid phase is proposed. The extended chains create interpolyelectrolyte-micelle interactions and promote expulsion of small ions from the complex, resulting in the formation of micrometer-scale phase-separated droplets.
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Affiliation(s)
- Matthew W Liberatore
- Department of Chemical Engineering, Colorado School of Mines, Golden, Colorado 80004, USA.
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Skrabania K, Berlepsch HV, Böttcher C, Laschewsky A. Synthesis of Ternary, Hydrophilic−Lipophilic−Fluorophilic Block Copolymers by Consecutive RAFT Polymerizations and Their Self-Assembly into Multicompartment Micelles. Macromolecules 2009. [DOI: 10.1021/ma901913f] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Katja Skrabania
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
| | - Hans v. Berlepsch
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, D-14195 Berlin, Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 36a, D-14195 Berlin, Germany
| | - André Laschewsky
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
- Fraunhofer Institute for Applied Polymer Research, D-14476 Potsdam-Golm, Germany
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36
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Schmitz C, Mourran A, Keul H, Möller M, Keerl M, Richtering W. Synthesis and aggregation behaviour of amphiphilic block copolymers with random middle block. Colloid Polym Sci 2009. [DOI: 10.1007/s00396-009-2081-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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38
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Keerl M, Pedersen JS, Richtering W. Temperature Sensitive Copolymer Microgels with Nanophase Separated Structure. J Am Chem Soc 2009; 131:3093-7. [DOI: 10.1021/ja807367p] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martina Keerl
- Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany, and Department of Chemistry and iNANO Interdisciplinary Nanoscience Centre, University of Aarhus, Langelandsgade 140, DK-8000 Århus C, Denmark
| | - Jan Skov Pedersen
- Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany, and Department of Chemistry and iNANO Interdisciplinary Nanoscience Centre, University of Aarhus, Langelandsgade 140, DK-8000 Århus C, Denmark
| | - Walter Richtering
- Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany, and Department of Chemistry and iNANO Interdisciplinary Nanoscience Centre, University of Aarhus, Langelandsgade 140, DK-8000 Århus C, Denmark
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39
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Synthesis of amphiphilic diblock copolymers poly[2-(N, N-dimethylamino)ethyl methacrylate]-b-poly(stearyl methacrylate) and their self-assembly in mixed solvent. Colloid Polym Sci 2008. [DOI: 10.1007/s00396-008-1951-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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42
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Keerl M, Smirnovas V, Winter R, Richtering W. Copolymer Microgels from Mono- and Disubstituted Acrylamides: Phase Behavior and Hydrogen Bonds. Macromolecules 2008. [DOI: 10.1021/ma800785w] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martina Keerl
- Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany, and Department of Chemistry, Physical Chemistry I, Dortmund University of Technology, Otto-Hahn-Str. 6, D-44227 Dortmund, Germany
| | - Vytautas Smirnovas
- Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany, and Department of Chemistry, Physical Chemistry I, Dortmund University of Technology, Otto-Hahn-Str. 6, D-44227 Dortmund, Germany
| | - Roland Winter
- Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany, and Department of Chemistry, Physical Chemistry I, Dortmund University of Technology, Otto-Hahn-Str. 6, D-44227 Dortmund, Germany
| | - Walter Richtering
- Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056 Aachen, Germany, and Department of Chemistry, Physical Chemistry I, Dortmund University of Technology, Otto-Hahn-Str. 6, D-44227 Dortmund, Germany
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43
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Müller CB, Richtering W. Sealed and temperature-controlled sample cell for inverted and confocal microscopes and fluorescence correlation spectroscopy. Colloid Polym Sci 2008. [DOI: 10.1007/s00396-008-1901-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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