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Zhang K, Oldenhof S, Wang Y, Esch JH, Mendes E. Spatial Manipulation and Integration of Supramolecular Filaments on Hydrogel Substrates towards Advanced Soft Devices. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kai Zhang
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Sander Oldenhof
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
- Netherlands Forensic Institute Laan van Ypenburg 6 2497 GB Den Haag The Netherlands
| | - Yiming Wang
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Meilong Road 130 200237 Shanghai China
| | - Jan H. Esch
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Eduardo Mendes
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
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Zhang K, Oldenhof S, Wang Y, Esch JH, Mendes E. Spatial Manipulation and Integration of Supramolecular Filaments on Hydrogel Substrates towards Advanced Soft Devices. Angew Chem Int Ed Engl 2020; 59:8601-8607. [DOI: 10.1002/anie.201915100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Kai Zhang
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Sander Oldenhof
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
- Netherlands Forensic Institute Laan van Ypenburg 6 2497 GB Den Haag The Netherlands
| | - Yiming Wang
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Meilong Road 130 200237 Shanghai China
| | - Jan H. Esch
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Eduardo Mendes
- Department of Chemical Engineering Deflt University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
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Zhang K, Suratkar A, Vedaraman S, Lakshminarayanan V, Jennings L, Glazer PJ, van Esch JH, Mendes E. Two Robust Strategies toward Hydrogels from Quenched Block Copolymer Nanofibrillar Micelles. Macromolecules 2018; 51:5788-5797. [PMID: 30258253 PMCID: PMC6150727 DOI: 10.1021/acs.macromol.8b01158] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/11/2018] [Indexed: 12/03/2022]
Abstract
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While the formation of (tri)block
copolymer hydrogels has been
extensively investigated, such studies mostly focused on equilibrium
self-assembling whereas the use of preformed structures as building
blocks such as out of equilibrium, quenched, nanofibrillar micelles
is still a challenge. Here, we demonstrate that quenched, ultralong
polystyrene-b-poly(ethylene oxide) (PS-b-PEO) micelles can be used as robust precursors of hydrogels. Two
cross-linking strategies, (i) thermal fusion of micellar cores and
(ii) chemical cross-linking of preformed micellar coronas were studied.
The gelation process and the structure of the micellar networks were
investigated by in situ rheological measurements, confocal microscopy
and transmission electron microscopy. Direct observation of core fusion
of preformed quenched micelles is provided validating this method
as a robust gelation route. Using time sweep rheological experiments,
it was found for both cross-linking methods that these 3D “mikado”
gels are formed in three different stages, containing (1) initiation,
(2) transition (growth), and (3) stabilization regimes.
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Affiliation(s)
- Kai Zhang
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Aaditya Suratkar
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Sitara Vedaraman
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Vasudevan Lakshminarayanan
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Laurence Jennings
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Piotr J Glazer
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Jan H van Esch
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Eduardo Mendes
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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Zhang K, Arranja A, Chen H, Mytnyk S, Wang Y, Oldenhof S, van Esch JH, Mendes E. A nano-fibrous platform of copolymer patterned surfaces for controlled cell alignment. RSC Adv 2018; 8:21777-21785. [PMID: 35541759 PMCID: PMC9081099 DOI: 10.1039/c8ra03527j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 06/05/2018] [Indexed: 11/25/2022] Open
Abstract
The last decade has witnessed great progress in understanding and manipulating self-assembly of block copolymers in solution. A wide variety of micellar structures can be created and many promising applications in bioscience have been reported. In particular, nano-fibrous micelles provide a great platform to mimic the filamentous structure of native extracellular matrix (ECM). However, the evaluation of this kind of filomicellar system with potential use in tissue engineering is virtually unexplored. The question behind it, such as if the block copolymer nano-fibrous micelles can regulate cellular response, has lingered for many years because of the difficulties in preparation and 3D manipulation of these tiny objects. Here, by using a combination approach of self-assembly of block copolymers and soft lithography, we establish a novel and unique nano-fibrous 2D platform of organized micelles and demonstrate that patterned micelles enable control over the cellular alignment behavior. The area density and orientation of fibrous micelles determine the alignment degree and directionality of cells, respectively. Furthermore, when cells were cultured on multi-directionally aligned micelles, a competitive response was observed. Due to the virtually infinite possibilities of functionalization of the micelle corona, our work opens a new route to further mimic the native fibrous networks with artificial micelles containing various functionalities.
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Affiliation(s)
- Kai Zhang
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology Delft 2629 HZ The Netherlands
| | - Alexandra Arranja
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology Delft 2629 HZ The Netherlands
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht Utrecht 3584 CX The Netherlands
| | - Hongyu Chen
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University Blacksburg VA 24061 USA
| | - Serhii Mytnyk
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology Delft 2629 HZ The Netherlands
| | - Yiming Wang
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology Delft 2629 HZ The Netherlands
| | - Sander Oldenhof
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology Delft 2629 HZ The Netherlands
- Netherlands Forensic Institute Den Haag 2497 GB The Netherlands
| | - Jan H van Esch
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology Delft 2629 HZ The Netherlands
| | - Eduardo Mendes
- Advanced Soft Matter Group, Department of Chemical Engineering, Delft University of Technology Delft 2629 HZ The Netherlands
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Choudhury P, Das K, Das PK. l-Phenylalanine-Tethered, Naphthalene Diimide-Based, Aggregation-Induced, Green-Emitting Organic Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4500-4510. [PMID: 28438019 DOI: 10.1021/acs.langmuir.7b00452] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The present article delineates the formation of green fluorescent organic nanoparticle through supramolecular aggregation of naphthalene diimide (NDI)-based, carboxybenzyl-protected, l-phenylalanine-appended bola-amphiphile, NDI-1. The amphiphilic molecule is soluble in DMSO, and, with gradual addition of water within the DMSO solution, the amphiphile starts to self-assemble via H-type aggregation to form spherical nanoparticles. These self-assembly of NDI-1 in the presence of a high amount of water exhibited aggregation-induced emission (AIE) through excimer formation. Notably, in the presence of 99% water content, the amphiphile forms spherical aggregated nanoparticles as confirmed from microscopic investigations and dynamic light scattering study. Interestingly, the emission maxima of molecularly dissolved NDI-1 (weak blue fluorescence) red-shifted upon aggregation with increase in water concentration and led to the formation of green-emitting fluorescent organic nanoparticles (FONPs) at 99% water content. These green-emitting FONPs were utilized in cell imaging as well as for efficient transportation of anticancer drug curcumin inside mammalian cells.
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Affiliation(s)
- Pritam Choudhury
- Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur , Kolkata - 700032, India
| | - Krishnendu Das
- Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur , Kolkata - 700032, India
| | - Prasanta Kumar Das
- Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur , Kolkata - 700032, India
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