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Wang X, Liu S, Cao S, Han F, Wang H, Chen H. Tandem Self-Assembly of Block Copolymer: From Vesicles to Stacked Bowls. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01341] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xiaoqing Wang
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Songlin Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Shida Cao
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Fei Han
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Hong Wang
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Hongyu Chen
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
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Chakraborty K, Vijayan K, Brown AEX, Discher DE, Loverde SM. Glassy worm-like micelles in solvent and shear mediated shape transitions. SOFT MATTER 2018; 14:4194-4203. [PMID: 29744515 PMCID: PMC6174325 DOI: 10.1039/c8sm00080h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The glassiness of polymer melts is generally considered to be suppressed by small dimensions, added solvent, and heat. Here, we suggest that glassiness persists at the nanoscale in worm-like micelles composed of amphiphilic diblock copolymers of poly(ethylene oxide)-polystyrene (PS). The glassiness of these worms is indicated by a lack of fluorescence recovery after photobleaching as well as micron-length rigid segments separated by hinges. The coarse-grained molecular dynamics studies probe the dynamics of the PS in these glassy worms. Addition of an organic solvent promotes a transition from hinged to fully flexible worms and to spheres or vesicles. Simulation demonstrates two populations of organic solvent in the core of the micelle-a solvent 'pool' in the micelle core and a second population that accumulates at the interface between the core and the corona. The stable heterogeneity of the residual solvent could explain the unusual hinged rigidity, but solvent removal during shear-extension could be more effective and yield - as observed - nearly straight worms without hinges.
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Affiliation(s)
- Kaushik Chakraborty
- Department of Chemistry, College of Staten Island, The City University of New York, 2800 Victory Boulevard, Staten Island, New York 10314, USA.
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Zhang WJ, Hong CY, Pan CY. Formation of Hexagonally Packed Hollow Hoops and Morphology Transition in RAFT Ethanol Dispersion Polymerization. Macromol Rapid Commun 2015; 36:1428-36. [DOI: 10.1002/marc.201500122] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 04/03/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Wen-Jian Zhang
- CAS Key Laboratory of Soft Matter Chemistry; Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Chun-Yan Hong
- CAS Key Laboratory of Soft Matter Chemistry; Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Cai-Yuan Pan
- CAS Key Laboratory of Soft Matter Chemistry; Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
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Zhang J, Liu K, Müllen K, Yin M. Self-assemblies of amphiphilic homopolymers: synthesis, morphology studies and biomedical applications. Chem Commun (Camb) 2015; 51:11541-55. [DOI: 10.1039/c5cc03016a] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The need for a simplified access to supramolecular assemblies with enhanced tenability has led to the development of amphiphilic homopolymers (APHPs). This review highlights recent advances and future trends in APHP design, self-assembly, and biomedical applications.
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Affiliation(s)
- Jin Zhang
- State Key Laboratory of Chemical Resource Engineering
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- 100029 Beijing
| | - Kelan Liu
- State Key Laboratory of Chemical Resource Engineering
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- 100029 Beijing
| | - Klaus Müllen
- Max-Planck-Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- 100029 Beijing
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Kim Y, Binauld S, Stenzel MH. Zwitterionic guanidine-based oligomers mimicking cell-penetrating peptides as a nontoxic alternative to cationic polymers to enhance the cellular uptake of micelles. Biomacromolecules 2012; 13:3418-26. [PMID: 22946476 DOI: 10.1021/bm301351e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The aim of this work is to generate polymer micelles decorated with a synthetic version of cell-penetrating peptides, which are often rich in arginine with its positively charged guanidine group. A methacrylate-based monomer with guanidinium as functional groups was prepared using arginine (M-Arg) as a building block, resulting in a zwitterionic monomer. RAFT (reversible addition-fragmentation chain transfer) polymerization was employed to generate triblock copolymers with poly(methyl methacrylate)-block-poly(polyethylene glycol methyl ether methacrylate) as the first two blocks, which were subsequently chain extended with the guanidine-based monomer to generate micelles with guanidinium functional groups on the surface. To simulate the actual oligoarginine peptide, which only carries cationic charges, the carboxylate group of P(M-Arg) was methylated to convert the zwitterionic polymer into a cationic polymer P(Me-M-Arg). For comparison, micelles based on triblock copolymers with a third block with permanently cationic charges, poly(2-methacryolyloxy ethyl) trimethyl ammonium chloride (PTMA), was prepared. The hydrodynamic diameters of the micelles were approximately 30-40 nm based on DLS and TEM. A direct correlation between surface charge (zeta potential ζ) and cytotoxicity was observed. The micelles based on the zwitterionic P(M-Arg) were nontoxic (ζ = -10 mV at pH = 7), while the methylated version P(Me-M-Arg) with a high cationic charge (ζ = +35 mV at pH = 7) were observed to be toxic. The cellular uptake of the block copolymers by OVCAR-3 ovarian cancer cell lines was found to be relatively fast (about 35% in 3 min) reaching an equilibrium after approximately 30 min. Both micelles, with either P(M-Arg) or P(Me-M-Arg) on the surface, showed an enhanced uptake compared to micelles with P(PEGMEMA) as shell only. In fact, the percentage of uptake was similar, with the difference that cells incubated with micelles with P(M-Arg) (zwitterionic) stayed alive, while P(Me-M-Arg) (cationic) led to significant cell death.
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Affiliation(s)
- Yoseop Kim
- University of New South Wales, Sydney, Australia
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Kim Y, Liemmawal ED, Pourgholami MH, Morris DL, Stenzel MH. Comparison of Shell-Cross-Linked Micelles with Soft and Glassy Cores as a Drug Delivery Vehicle for Albendazole: Is There a Difference in Performance? Macromolecules 2012. [DOI: 10.1021/ma300644v] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoseop Kim
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - Elviana D. Liemmawal
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - Mohammad H. Pourgholami
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - David L. Morris
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - Martina H. Stenzel
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
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Deepak VD, Sundararajan PR. Solvent Mixture Induced Self Assembly of a Terthiophene Based Rod–Coil Block Co-oligomer. J Phys Chem B 2011; 115:8458-64. [DOI: 10.1021/jp204469n] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- V. D. Deepak
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6 Canada
| | - Pudupadi R. Sundararajan
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6 Canada
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Kim Y, Pourgholami MH, Morris DL, Stenzel MH. Triggering the fast release of drugs from crosslinked micelles in an acidic environment. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11062d] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kim Y, Pourgholami MH, Morris DL, Stenzel MH. An optimized RGD-decorated micellar drug delivery system for albendazole for the treatment of ovarian cancer: from RAFT polymer synthesis to cellular uptake. Macromol Biosci 2010; 11:219-33. [PMID: 21077226 DOI: 10.1002/mabi.201000293] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 08/31/2010] [Indexed: 01/22/2023]
Abstract
Block copolymers were prepared via RAFT polymerization with P(PEGMEMA) as the hydrophilic block to form micelles for the controlled delivery of ABZ. The group contribution method was used to estimate the partial solubility parameters for ABZ and various polymers as potential core-forming block to achieve optimum compatibility. Different ratios between MMA and LMA, a non-compatible monomer, were prepared. Cytotoxicity tests revealed a high toxicity of the ABZ-loaded micelle resulting in 80% cell deaths at a micelle concentration of 10 µg · mL(-1) . Cellular uptake of micelles has been studied using fluorescently labeled micelles, showing that a large fraction of micelles is readily taken up by OVCAR-3 cells. RGD-conjugated micelles were prepared and showed an increased cellular uptake.
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Affiliation(s)
- Yoseop Kim
- Centre for Advanced Macromolecular Design (CAMD), University of New South Wales, Sydney, NSW 2052, Australia
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Miao Q, Jin Y, Dong Y, Cao Z, Zhang B. Synthesis and morphology transformation of amphiphilic diblock polyurethane copolymers in aqueous solution. POLYM INT 2010. [DOI: 10.1002/pi.2836] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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O'Driscoll S, Demirel G, Farrell RA, Fitzgerald TG, O'Mahony C, Holmes JD, Morris MA. The morphology and structure of PS-b-P4VP block copolymer films by solvent annealing: effect of the solvent parameter. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1596] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang C, Wang T, Pei X, Wang Q. Shell–core–corona aggregates formed from poly(styrene)-poly(4-vinylpyridine) block copolymer induced by added homopolymer via interpolymer hydrogen-bonding. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.09.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kale TS, Klaikherd A, Popere B, Thayumanavan S. Supramolecular assemblies of amphiphilic homopolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:9660-9670. [PMID: 19453140 DOI: 10.1021/la900734d] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Amphiphilic molecules self-assemble in solvents because of the differential solvation of the hydrophilic and lipophilic functionalities. Small-molecule surfactants have long been known to form micelles in water that can solubilize lipophilic guest molecules in their water-excluded interior. Polymeric surfactants based on block copolymers are also known to form several types of aggregates in water owing either to the mutual incompatibility of the blocks or better solvation of one of the blocks by the solvent. Incorporating amphiphilicity at smaller length scales in polymers would provide an avenue to capture the interesting properties of macromolecules and fine tune their supramolecular assemblies. To address this issue, we designed and synthesized amphiphilic homopolymers containing hydrophilic and lipophilic functionalities in the monomer. Such a polymer can be imagined to be a string of small-molecule surfactants tethered together such that the hydrophilic and lipophilic functionalities are located on opposite faces, rendering the assemblies facially amphiphilic. This feature article describes the self-assembly of our amphiphilic homopolymers in polar and apolar solvents. These homopolymers not only form micelles in water but also form inverse micelles in organic solvents. Subtle changes to the molecular structure have been demonstrated to yield vesicles in water and inverted micelles in organic solvents. The characterization of these assemblies and their applications in separations, catalysis, and sensing are described here.
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Affiliation(s)
- Tejaswini S Kale
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
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14
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Structures of the cylindrical and vesicular micelles of an P4VP-longer asymmetric PS-b-P4VP. Macromol Res 2009. [DOI: 10.1007/bf03218907] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Lin CH, Chen WC, Chen HL. Heteroarm Star Polystyrene-block-Poly(4-vinylpyridine): Multiple Morphologies in Dilute Solutions. MACROMOL CHEM PHYS 2008. [DOI: 10.1002/macp.200800378] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Guo P, Guan W, Liang L, Yao P. Self-assembly of pH-sensitive random copolymers: Poly(styrene-co-4-vinylpyridine). J Colloid Interface Sci 2008; 323:229-34. [DOI: 10.1016/j.jcis.2008.04.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2008] [Revised: 03/30/2008] [Accepted: 04/04/2008] [Indexed: 10/22/2022]
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Keller T, Semmler C, Jandt KD. Strain-Induced Phase Morphology in Melt Drawn Ultrathin Highly Oriented Block Copolymer Films. Macromol Rapid Commun 2008. [DOI: 10.1002/marc.200800060] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Zou P, Pan CY. Multiple Vesicle Morphologies Formed from Reactive H-Shaped Block Copolymers. Macromol Rapid Commun 2008. [DOI: 10.1002/marc.200700886] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Mai Y, Zhou Y, Yan D. Real-time hierarchical self-assembly of large compound vesicles from an amphiphilic hyperbranched multiarm copolymer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2007; 3:1170-3. [PMID: 17492745 DOI: 10.1002/smll.200600733] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Affiliation(s)
- Yiyong Mai
- College of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
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Elsabahy M, Perron ME, Bertrand N, Yu GE, Leroux JC. Solubilization of docetaxel in poly(ethylene oxide)-block-poly(butylene/styrene oxide) micelles. Biomacromolecules 2007; 8:2250-7. [PMID: 17579476 DOI: 10.1021/bm070226v] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Poly(ethylene oxide)-block-poly(styrene oxide) (PEO-b-PSO) and PEO-b-poly(butylene oxide) (PEO-b-PBO) of different chain lengths were synthesized and characterized for their self-assembling properties in water by dynamic/static light scattering, spectrofluorimetry, and transmission electron microscopy. The resulting polymeric micelles were evaluated for their ability to solubilize and protect the anticancer drug docetaxel (DCTX) from degradation. The drug release kinetics as well as the cytotoxicity of the loaded micelles were assessed in vitro. All polymers formed micelles with a highly viscous core at low critical association concentrations (<10 mg/L). Micelle morphology depended on the nature of the hydrophobic block, with PBO- and PSO-based micelles yielding monodisperse spherical and cylindrical nanosized aggregates, respectively. The maximum solubilization capacity for DCTX ranged from 0.7 to 4.2% and was the highest for PSO micelles exhibiting the longest hydrophobic segment. Despite their high affinity for DCTX, PEO-b-PSO micelles were not able to efficiently protect DCTX against hydrolysis under accelerated stability testing conditions. Only PEO-b-PBO bearing 24 BO units afforded significant protection against degradation. In vitro, DCTX was released slower from the latter micelles, but all formulations possessed a similar cytotoxic effect against PC-3 prostate cancer cells. These data suggest that PEO-b-P(SO/BO) micelles could be used as alternatives to conventional surfactants for the solubilization of taxanes.
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Affiliation(s)
- Mahmoud Elsabahy
- Faculty of Pharmacy, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montreal, QC, Canada
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Tung PH, Kuo SW, Chen SC, Lin CL, Chang FC. Micellar morphologies of self-associated diblock copolymers in acetone solution. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.03.071] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lefèvre N, Fustin CA, Varshney SK, Gohy JF. Self-assembly of block copolymer complexes in organic solvents. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.02.060] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Miura Y, Dote H, Kubonishi H, Fukuda K, Saka T. Syntheses and characterization of 16-arm star and star diblock copolymer and AB8 9-miktoarm star copolymer via NMRP and ROP from dendritic multifunctional macroinitiators. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.21885] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Tung YC, Wu WC, Chen WC. Morphological Transformation and Photophysical Properties of Rod-Coil Poly[2,7-(9,9-dihexylfluorene)]-block-poly(acrylic acid) in Solution. Macromol Rapid Commun 2006. [DOI: 10.1002/marc.200600518] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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