1
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Wang H, Wang C, Liu L, Zhao H. Synthesis of Polymer Brushes and Removable Surface Nanostructures on Tannic Acid Coatings. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Huan Wang
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Tianjin 300071, China
| | - Chen Wang
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Tianjin 300071, China
| | - Li Liu
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Tianjin 300071, China
| | - Hanying Zhao
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Tianjin 300071, China
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2
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Sarker M, Watts S, Salentinig S, Lim S. Protein Cage-Stabilized Emulsions: Formulation and Characterization. Methods Mol Biol 2023; 2671:219-239. [PMID: 37308648 DOI: 10.1007/978-1-0716-3222-2_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The formulation of Pickering emulsions using protein cages is gaining interest for applications in molecular delivery. Despite the growing interest, methods to investigate the at the liquid-liquid interface are limited. This chapter describes standard methods to formulate and protocols to characterize protein cage-stabilized emulsions. The characterization methods are dynamic light scattering (DLS), intrinsic fluorescence spectroscopy (TF), circular dichroism (CD), and small angle X-ray scattering (SAXS). Combining these methods allows understanding of the protein cage nanostructure at the oil/water interface.
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Affiliation(s)
- Mridul Sarker
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Samuel Watts
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Stefan Salentinig
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland.
| | - Sierin Lim
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore.
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3
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Cai J, Manners I, Qiu H. "Self-Adaptive" Coassembly of Colloidal "Saturn-like" Host-Guest Complexes Enabled by Toroidal Micellar Rubber Bands. J Am Chem Soc 2022; 144:5734-5738. [PMID: 35324193 DOI: 10.1021/jacs.2c01109] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The creation of inclusion complexes with "Saturn-like" geometries has attracted increasing attention for supramolecular systems, but expansion of the concept to nanoscale colloidal systems remains a challenge. Here, we report a strategy to assemble toroidal polyisoprene-b-poly(2-vinylpyridine) (PI-b-P2VP) block copolymer micelles with a PI core and a P2VP corona and inorganic (e.g., silica) nanoparticles of variable shape and dimensions into "Saturn-like" constructs with high fidelity and yield. The precise nesting of the nanoparticles between the toroidal building units is realized by virtue of hydrogen bonding and self-adaptive expansion of the flexible toroidal units enabled by a flexible, low Tg PI core. Once the toroidal units are cross-linked, the self-adaptive feature is lost and coassembly yields instead out-of-cavity bound nanoparticles. "Saturn-like" assemblies can also be formed along silica nanosphere-decorated cylindrical micelles or, alternatively, at the hydroxyl-functionalized termini of cylindrical micelles to yield colloidal [3]rotaxanes.
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Affiliation(s)
- Jiandong Cai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.,Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada
| | - Ian Manners
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.,Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada.,Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Huibin Qiu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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4
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Self-regulated co-assembly of soft and hard nanoparticles. Nat Commun 2021; 12:5682. [PMID: 34584088 PMCID: PMC8479080 DOI: 10.1038/s41467-021-25995-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 08/30/2021] [Indexed: 11/30/2022] Open
Abstract
Controlled self-assembly of colloidal particles into predetermined organization facilitates the bottom-up manufacture of artificial materials with designated hierarchies and synergistically integrated functionalities. However, it remains a major challenge to assemble individual nanoparticles with minimal building instructions in a programmable fashion due to the lack of directional interactions. Here, we develop a general paradigm for controlled co-assembly of soft block copolymer micelles and simple unvarnished hard nanoparticles through variable noncovalent interactions, including hydrogen bonding and coordination interactions. Upon association, the hairy micelle corona binds with the hard nanoparticles with a specific valence depending exactly on their relative size and feeding ratio. This permits the integration of block copolymer micelles with a diverse array of hard nanoparticles with tunable chemistry into multidimensional colloidal molecules and polymers. Secondary co-assembly of the resulting colloidal molecules further leads to the formation of more complex hierarchical colloidal superstructures. Notably, such colloidal assembly is processible on surface either through initiating the alternating co-assembly from a micelle immobilized on a substrate or directly grafting a colloidal oligomer onto the micellar anchor. Colloidal self-assembly enables bottom-up manufacture of materials with designed hierarchies and functions. Here the authors develop a facile method to construct multidimensional colloidal architectures via the association of soft block copolymer micelles with simple unvarnished hard nanoparticles.
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5
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Ayubali M, Kotlarchyk M, Smith TW.
H
3
PO
4
‐induced
micellization of
styrene‐ethylene
oxide block copolymers in toluene solutions. J Appl Polym Sci 2021. [DOI: 10.1002/app.50657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Michael Kotlarchyk
- School of Chemistry & Materials Science and School of Physics & Astronomy Rochester Institute of Technology Rochester New York USA
| | - Thomas W. Smith
- School of Chemistry & Materials Science and School of Physics & Astronomy Rochester Institute of Technology Rochester New York USA
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6
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Song S, Yu Q, Zhou H, Hicks G, Zhu H, Rastogi CK, Manners I, Winnik MA. Solvent effects leading to a variety of different 2D structures in the self-assembly of a crystalline-coil block copolymer with an amphiphilic corona-forming block. Chem Sci 2020; 11:4631-4643. [PMID: 34122918 PMCID: PMC8159233 DOI: 10.1039/d0sc01453b] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/06/2020] [Indexed: 01/07/2023] Open
Abstract
We describe a polyferrocenyldimethylsilane (PFS) block copolymer (BCP), PFS27-b-P(TDMA65-ran-OEGMA69) (the subscripts refer to the mean degrees of polymerization), in which the corona-forming block is a random brush copolymer of hydrophobic tetradecyl methacrylate (TDMA) and hydrophilic oligo(ethylene glycol) methyl ether methacrylate (OEGMA). Thus, the corona is amphiphilic. This BCP generates a remarkable series of different structures when subjected to crystallization-driven self-assembly (CDSA) in solvents of different polarity. Long ribbon-like micelles formed in isopropanol, and their lengths could be controlled using both self-seeding and seeded growth protocols. In hexanol, the BCP formed more complex structures. These objects consisted of oval platelets connected to long fiber-like micelles that were uniform in width but polydisperse in length. In octane, relatively uniform rectangular platelets formed. Finally, a distinct morphology formed in a mixture of octane/hexanol, namely uniform oval structures, whose height corresponded to the fully extended PFS block. Both long and short axes of these ovals increased with the initial annealing temperature and with the BCP concentration. The self-seeding protocol also afforded uniform two-dimensional structures. Seeded growth experiments, in which a solution of the BCP in THF was added to a colloidal solution of the oval micelles led to a linear increase in area while maintaining the aspect ratio of the ovals. These experiments demonstrate the powerful effect of the amphiphilic corona chains on the CDSA of a core crystalline BCP in solvents of different hydrophilicity.
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Affiliation(s)
- Shaofei Song
- Department of Chemistry, University of Toronto Toronto Ontario M5S 3H6 Canada
| | - Qing Yu
- Department of Chemistry, University of Toronto Toronto Ontario M5S 3H6 Canada
| | - Hang Zhou
- Department of Chemistry, University of Toronto Toronto Ontario M5S 3H6 Canada
| | - Garion Hicks
- Department of Chemistry, University of Toronto Toronto Ontario M5S 3H6 Canada
| | - Hu Zhu
- Department of Chemistry, University of Toronto Toronto Ontario M5S 3H6 Canada
| | | | - Ian Manners
- Department of Chemistry, University of Victoria Victoria British Columbia V8W 3V6 Canada
| | - Mitchell A Winnik
- Department of Chemistry, University of Toronto Toronto Ontario M5S 3H6 Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto Toronto ON M5S 3E2 Canada
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7
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Zhang S, Cai C, Xu Z, Lin J, Jin X. Role of High‐Molecular‐Weight Homopolymers on Block Copolymer Self‐Assembly: From Morphology Modifier to Template. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuo Zhang
- Shanghai Key Laboratory of Advanced Polymeric MaterialsSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric MaterialsSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zhanwen Xu
- Shanghai Key Laboratory of Advanced Polymeric MaterialsSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric MaterialsSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Xiao Jin
- Shanghai Key Laboratory of Advanced Polymeric MaterialsSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
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8
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Atanase LI, Riess G. Self-Assembly of Block and Graft Copolymers in Organic Solvents: An Overview of Recent Advances. Polymers (Basel) 2018; 10:E62. [PMID: 30966101 PMCID: PMC6414829 DOI: 10.3390/polym10010062] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 12/31/2022] Open
Abstract
This review is an attempt to update the recent advances in the self-assembly of amphiphilic block and graft copolymers. Their micellization behavior is highlighted for linear AB, ABC triblock terpolymers, and graft structures in non-aqueous selective polar and non-polar solvents, including solvent mixtures and ionic liquids. The micellar characteristics, such as particle size, aggregation number, and morphology, are examined as a function of the copolymers' architecture and molecular characteristics.
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Affiliation(s)
- Leonard Ionut Atanase
- Faculty of Dental Medicine, "Apollonia" University, 700399 Iasi, Romania.
- Research Institute "Academician Ioan Haulica", 700399 Iasi, Romania.
| | - Gerard Riess
- University of Haute Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse, Laboratoire de Photochimie et d'Ingénierie Macromoléculaires, 68093 Mulhouse CEDEX, France.
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9
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Salentinig S, Zabara M, Parisse P, Amenitsch H. Formation of highly ordered liquid crystalline coatings – an in situ GISAXS study. Phys Chem Chem Phys 2018; 20:21903-21909. [PMID: 30123907 DOI: 10.1039/c8cp03205j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ GISAXS and AFM reveal the formation of highly geometrically organized glycerol monooleate based liquid crystalline films on silicon wafers.
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Affiliation(s)
- S. Salentinig
- Laboratory for Biointerfaces
- Department Materials Meet Life
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
| | - Mahsa Zabara
- Laboratory for Biointerfaces
- Department Materials Meet Life
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
| | - P. Parisse
- Elettra Sincrotrone Trieste S.C.p.A
- 34149-Basovizza
- Italy
| | - H. Amenitsch
- Institute for Inorganic Chemistry
- Graz University of Technology
- Stremayergasse 9/V
- 8010 Graz
- Austria
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10
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Penfold NJW, Parnell AJ, Molina M, Verstraete P, Smets J, Armes SP. Layer-By-Layer Self-Assembly of Polyelectrolytic Block Copolymer Worms on a Planar Substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14425-14436. [PMID: 29148796 PMCID: PMC5789390 DOI: 10.1021/acs.langmuir.7b03571] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/16/2017] [Indexed: 05/30/2023]
Abstract
Cationic and anionic block copolymer worms are prepared by polymerization-induced self-assembly via reversible addition-fragmentation chain transfer (RAFT) aqueous dispersion copolymerization of 2-hydroxypropyl methacrylate and glycidyl methacrylate (GlyMA), using a binary mixture of a nonionic poly(ethylene oxide) macromolecular RAFT agent and either a cationic poly([2-(methacryloyloxy)ethyl]trimethylammonium chloride) or an anionic poly(potassium 3-sulfopropyl methacrylate) macromolecular RAFT agent. In each case, covalent stabilization of the worm cores was achieved via reaction of the epoxide groups on the GlyMA repeat units with 3-mercaptopropyltriethoxysilane. Aqueous electrophoresis studies indicated a pH-independent mean zeta potential of +40 mV and -39 mV for the cationic and anionic copolymer worms, respectively. These worms are expected to mimic the rigid rod behavior of water-soluble polyelectrolyte chains in the absence of added salt. The kinetics of adsorption of the cationic worms onto a planar anionic silicon wafer was examined at pH 5 and was found to be extremely fast at 1.0 w/w % copolymer concentration in the absence of added salt. Scanning electron microscopy (SEM) analysis indicated that a relatively constant worm surface coverage of 16% was achieved at 20 °C for adsorption times ranging from just 2 s up to 2 min. Furthermore, the successive layer-by-layer deposition of cationic and anionic copolymer worms onto planar surfaces was investigated using SEM, ellipsometry, and surface zeta potential measurements. These techniques confirmed that the deposition of oppositely charged worms resulted in a monotonic increase in the mean layer thickness, with a concomitant surface charge reversal occurring on addition of each new worm layer. Unexpectedly, two distinct linear regimes were observed when plotting the mean layer thickness against the total number of adsorbed worm layers, with a steeper gradient (corresponding to thicker layers) being observed after the deposition of six worm layers.
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Affiliation(s)
- Nicholas J. W. Penfold
- Department
of Chemistry, The University of Sheffield,
Dainton Building, Brook
Hill, Sheffield S3 7HF, U.K.
| | - Andrew J. Parnell
- Department
of Physics & Astronomy, The University
of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, U.K.
| | - Marta Molina
- Department
of Chemistry, The University of Sheffield,
Dainton Building, Brook
Hill, Sheffield S3 7HF, U.K.
| | | | - Johan Smets
- Procter
& Gamble, Temselaan
100, 1853 Strombeek
Bever, Belgium
| | - Steven P. Armes
- Department
of Chemistry, The University of Sheffield,
Dainton Building, Brook
Hill, Sheffield S3 7HF, U.K.
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11
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Salentinig S, Schubert M. Softwood Lignin Self-Assembly for Nanomaterial Design. Biomacromolecules 2017; 18:2649-2653. [DOI: 10.1021/acs.biomac.7b00822] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Stefan Salentinig
- Laboratory
for Biointerfaces, Department Materials meet Life, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse
5, 9014 St. Gallen, Switzerland
| | - Mark Schubert
- Laboratory
for Applied Wood Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, Switzerland
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