1
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Jiang S, Yang S, Lei W, Liu Z, Schönherr H. Boosting the Cell Harvesting Performance of Poly(di(ethylene glycol)methyl ether methacrylate) Cell Release Layers via Copolymerization of Photo- and Thermoresponsive Monomers. Macromol Biosci 2024:e2400249. [PMID: 39052359 DOI: 10.1002/mabi.202400249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/13/2024] [Indexed: 07/27/2024]
Abstract
The performance of the cell-selective thermoresponsive poly(di(ethylene glycol)methyl ether methacrylate) (PDEGMA) cell harvest system is shown to be drastically enhanced by exploiting the combination of photoresponsive spiropyran derivates and PDEGMA in copolymerized brushes. The analysis of copolymerized 1'-(2-methacryloxyethyl)-3',3'-dimethyl-6-nitrospiro(2H-1-benzopyran-2,2'-indoline) (SPMA) (DEMGA) di(ethylene glycol)methyl ether methacrylate brushes revealed that a minor adjustment of the SPMA/DEGMA ratios results in a significant alternation of wettability as well as protein adsorption, when switching the temperature from 37 to 22 °C and alternately irradiating using different light wavelengths (from 530 to 365 nm). Thin P(SPMA-co-DEGMA) layers supported pancreatic tumor PaTu 8988t cells with high cell viability. Copolymer layers with 2.5% SPMA/DEGMA led to the highest efficiency of enzyme-free cell release with very good cell viability. The release is induced by cooling the cell culture medium to 22 °C and irradiating the surface with 365 nm light. Compared to neat PDEGMA, the P(SPMA-co-DEGMA) layers showed a threefold increase in the speed of the change of cell morphology of the attached cells and a >5 times increased fraction of detached cells, which underlines the potential of these dual responsive PDEGMA systems for optimized performance in the facile capture, culture, and release of different cell lines.
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Affiliation(s)
- Siyu Jiang
- Department of Bioengineering, School of Environmental and Chemical Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, 066004, China
- Nano-biotechnology Key Lab of Hebei Province, Yanshan University, No.438 Hebei Street, 066004, Qinhuangdao, China
| | - Sijia Yang
- Department of Bioengineering, School of Environmental and Chemical Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, 066004, China
| | - Wenwei Lei
- Nano-biotechnology Key Lab of Hebei Province, Yanshan University, No.438 Hebei Street, 066004, Qinhuangdao, China
| | - Zhiwei Liu
- Nano-biotechnology Key Lab of Hebei Province, Yanshan University, No.438 Hebei Street, 066004, Qinhuangdao, China
| | - Holger Schönherr
- Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), Physical Chemistry I, University of Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
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2
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Pavón C, Ongaro A, Filipucci I, Ramakrishna SN, Mattarei A, Isa L, Klok HA, Lorandi F, Benetti EM. The Structural Dispersity of Oligoethylene Glycol-Containing Polymer Brushes Determines Their Interfacial Properties. J Am Chem Soc 2024. [PMID: 38859572 DOI: 10.1021/jacs.4c05565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Ought to their bioinert properties and facile synthesis, poly[(oligoethylene glycol)methacrylate]s (POEGMAs) have been raised as attractive alternatives to poly(ethylene glycols) (PEGs) in an array of (bio)material applications, especially when they are applied as polymer brush coatings. However, commercially available OEG-methacrylate (macro)monomers feature a broad distribution of OEG lengths, thus generating structurally polydisperse POEGMAs when polymerized through reversible deactivation radical polymerization. Here, we demonstrate that the interfacial physicochemical properties of POEGMA brushes are significantly affected by their structural dispersity, i.e., the degree of heterogeneity in the length of side OEG segments. POEGMA brushes synthesized from discrete (macro)monomers obtained through chromatographic purification of commercial mixtures show increased hydration and reduced adhesion when compared to their structurally polydisperse analogues. The observed alteration of interfacial properties is directly linked to the presence of monodisperse OEG side chains, which hamper intramolecular and intermolecular hydrophobic interactions while simultaneously promoting the association of water molecules. These phenomena provide structurally homogeneous POEGMA brushes with a more lubricious and protein repellent character with respect to their heterogeneous counterparts. More generally, in contrast to what has been assumed until now, the properties of POEGMA brushes cannot be anticipated while ruling out the effect of dispersity by (macro)monomer feeds. Simultaneously, side chain dispersity of POEGMAs emerges as a critical parameter for determining the interfacial characteristics of brushes.
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Affiliation(s)
- Carlos Pavón
- Laboratory for Macromolecular and Organic Chemistry, Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Alberto Ongaro
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy
| | - Irene Filipucci
- Laboratory for Macromolecular and Organic Chemistry, Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymeres, École Polytechnique Fédérale de Lausanne (EPFL), Rte Cantonale, CH-1015 Lausanne, Switzerland
| | - Shivaprakash N Ramakrishna
- Laboratory for Soft Materials and Interfaces, ETH Zürich, Vladmir-Prelog-Weg 1-5, 8093 Zürich, Switzerland
| | - Andrea Mattarei
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy
| | - Lucio Isa
- Laboratory for Soft Materials and Interfaces, ETH Zürich, Vladmir-Prelog-Weg 1-5, 8093 Zürich, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymeres, École Polytechnique Fédérale de Lausanne (EPFL), Rte Cantonale, CH-1015 Lausanne, Switzerland
| | - Francesca Lorandi
- Laboratory for Macromolecular and Organic Chemistry, Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Edmondo M Benetti
- Laboratory for Macromolecular and Organic Chemistry, Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
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3
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Temperature-Responsive Polymer Brush Coatings for Advanced Biomedical Applications. Polymers (Basel) 2022; 14:polym14194245. [PMID: 36236192 PMCID: PMC9571834 DOI: 10.3390/polym14194245] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 01/15/2023] Open
Abstract
Modern biomedical technologies predict the application of materials and devices that not only can comply effectively with specific requirements, but also enable remote control of their functions. One of the most prospective materials for these advanced biomedical applications are materials based on temperature-responsive polymer brush coatings (TRPBCs). In this review, methods for the fabrication and characterization of TRPBCs are summarized, and possibilities for their application, as well as the advantages and disadvantages of the TRPBCs, are presented in detail. Special attention is paid to the mechanisms of thermo-responsibility of the TRPBCs. Applications of TRPBCs for temperature-switchable bacteria killing, temperature-controlled protein adsorption, cell culture, and temperature-controlled adhesion/detachment of cells and tissues are considered. The specific criteria required for the desired biomedical applications of TRPBCs are presented and discussed.
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4
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Cao H, Duan L, Zhang Y, Cao J, Zhang K. Current hydrogel advances in physicochemical and biological response-driven biomedical application diversity. Signal Transduct Target Ther 2021; 6:426. [PMID: 34916490 PMCID: PMC8674418 DOI: 10.1038/s41392-021-00830-x] [Citation(s) in RCA: 272] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 02/05/2023] Open
Abstract
Hydrogel is a type of versatile platform with various biomedical applications after rational structure and functional design that leverages on material engineering to modulate its physicochemical properties (e.g., stiffness, pore size, viscoelasticity, microarchitecture, degradability, ligand presentation, stimulus-responsive properties, etc.) and influence cell signaling cascades and fate. In the past few decades, a plethora of pioneering studies have been implemented to explore the cell-hydrogel matrix interactions and figure out the underlying mechanisms, paving the way to the lab-to-clinic translation of hydrogel-based therapies. In this review, we first introduced the physicochemical properties of hydrogels and their fabrication approaches concisely. Subsequently, the comprehensive description and deep discussion were elucidated, wherein the influences of different hydrogels properties on cell behaviors and cellular signaling events were highlighted. These behaviors or events included integrin clustering, focal adhesion (FA) complex accumulation and activation, cytoskeleton rearrangement, protein cyto-nuclei shuttling and activation (e.g., Yes-associated protein (YAP), catenin, etc.), cellular compartment reorganization, gene expression, and further cell biology modulation (e.g., spreading, migration, proliferation, lineage commitment, etc.). Based on them, current in vitro and in vivo hydrogel applications that mainly covered diseases models, various cell delivery protocols for tissue regeneration and disease therapy, smart drug carrier, bioimaging, biosensor, and conductive wearable/implantable biodevices, etc. were further summarized and discussed. More significantly, the clinical translation potential and trials of hydrogels were presented, accompanied with which the remaining challenges and future perspectives in this field were emphasized. Collectively, the comprehensive and deep insights in this review will shed light on the design principles of new biomedical hydrogels to understand and modulate cellular processes, which are available for providing significant indications for future hydrogel design and serving for a broad range of biomedical applications.
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Affiliation(s)
- Huan Cao
- Department of Nuclear Medicine, West China Hospital, and National Engineering Research Center for Biomaterials, Sichuan University, 610064, Chengdu, P. R. China
- Department of Medical Ultrasound and Central Laboratory, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, 200072, Shanghai, People's Republic of China
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Lixia Duan
- Department of Medical Ultrasound and Central Laboratory, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, 200072, Shanghai, People's Republic of China
| | - Yan Zhang
- Department of Medical Ultrasound and Central Laboratory, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, 200072, Shanghai, People's Republic of China
| | - Jun Cao
- Department of Nuclear Medicine, West China Hospital, and National Engineering Research Center for Biomaterials, Sichuan University, 610064, Chengdu, P. R. China.
| | - Kun Zhang
- Department of Medical Ultrasound and Central Laboratory, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, 200072, Shanghai, People's Republic of China.
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5
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Romio M, Grob B, Trachsel L, Mattarei A, Morgese G, Ramakrishna SN, Niccolai F, Guazzelli E, Paradisi C, Martinelli E, Spencer ND, Benetti EM. Dispersity within Brushes Plays a Major Role in Determining Their Interfacial Properties: The Case of Oligoxazoline-Based Graft Polymers. J Am Chem Soc 2021; 143:19067-19077. [PMID: 34738797 PMCID: PMC8769490 DOI: 10.1021/jacs.1c08383] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 12/14/2022]
Abstract
Many synthetic polymers used to form polymer-brush films feature a main backbone with functional, oligomeric side chains. While the structure of such graft polymers mimics biomacromolecules to an extent, it lacks the monodispersity and structural purity present in nature. Here we demonstrate that side-chain heterogeneity within graft polymers significantly influences hydration and the occurrence of hydrophobic interactions in the subsequently formed brushes and consequently impacts fundamental interfacial properties. This is demonstrated for the case of poly(methacrylate)s (PMAs) presenting oligomeric side chains of different length (n) and dispersity. A precise tuning of brush structure was achieved by first synthesizing oligo(2-ethyl-2-oxazoline) methacrylates (OEOXMAs) by cationic ring-opening polymerization (CROP), subsequently purifying them into discrete macromonomers with distinct values of n by column chromatography, and finally obtaining poly[oligo(2-ethyl-2-oxazoline) methacrylate]s (POEOXMAs) by reversible addition-fragmentation chain-transfer (RAFT) polymerization. Assembly of POEOXMA on Au surfaces yielded graft polymer brushes with different side-chain dispersities and lengths, whose properties were thoroughly investigated by a combination of variable angle spectroscopic ellipsometry (VASE), quartz crystal microbalance with dissipation (QCMD), and atomic force microscopy (AFM) methods. Side-chain dispersity, or dispersity within brushes, leads to assemblies that are more hydrated, less adhesive, and more lubricious and biopassive compared to analogous films obtained from graft polymers characterized by a homogeneous structure.
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Affiliation(s)
- Matteo Romio
- Biointerfaces
Lab, Swiss Federal Laboratories for Materials
Science and Technology (Empa), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
- Laboratory
for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Benjamin Grob
- Laboratory
for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Lucca Trachsel
- George
& Josephine Butler Polymer Research Laboratory, Department of
Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Andrea Mattarei
- Department
of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Giulia Morgese
- Institute
of Materials and Process Engineering (IMPE), School of Engineering
(SoE), Zürich University of Applied
Sciences (ZHAW), Technikumstrasse 9, 8401 Winterthur, Switzerland
| | - Shivaprakash N. Ramakrishna
- Soft Materials
and Interfaces, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg
5, 8093 Zürich, Switzerland
| | - Francesca Niccolai
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Elisa Guazzelli
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Cristina Paradisi
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, 35122 Padova, Italy
| | - Elisa Martinelli
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Nicholas D. Spencer
- Laboratory
for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Edmondo M. Benetti
- Biointerfaces
Lab, Swiss Federal Laboratories for Materials
Science and Technology (Empa), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
- Laboratory
for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, 35122 Padova, Italy
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6
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Yu Y, Brió Pérez M, Cao C, de Beer S. Switching (bio-) adhesion and friction in liquid by stimulus responsive polymer coatings. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110298] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Nagase K, Shimura M, Shimane R, Hanaya K, Yamada S, Akimoto AM, Sugai T, Kanazawa H. Selective capture and non-invasive release of cells using a thermoresponsive polymer brush with affinity peptides. Biomater Sci 2021; 9:663-674. [DOI: 10.1039/d0bm01453b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Thermoresponsive block copolymer brush with cell affinity peptides was prepared via two steps of ATRP and subsequent click reaction. The prepared polymer brush can purify cells with high selectivity by simply changing temperature.
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Affiliation(s)
| | | | | | | | - Sota Yamada
- Faculty of Pharmacy
- Keio University
- Minato
- Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Bunkyo
- Japan
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8
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Mokhtarinia K, Masaeli E. Transiently thermally responsive surfaces: Concepts for cell sheet engineering. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Mohamed MA, Fallahi A, El-Sokkary AM, Salehi S, Akl MA, Jafari A, Tamayol A, Fenniri H, Khademhosseini A, Andreadis ST, Cheng C. Stimuli-responsive hydrogels for manipulation of cell microenvironment: From chemistry to biofabrication technology. Prog Polym Sci 2019; 98. [DOI: 10.1016/j.progpolymsci.2019.101147] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10
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Yan W, Ramakrishna SN, Romio M, Benetti EM. Bioinert and Lubricious Surfaces by Macromolecular Design. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13521-13535. [PMID: 31532689 DOI: 10.1021/acs.langmuir.9b02316] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The modification of a variety of biomaterials and medical devices often encompasses the generation of biopassive and lubricious layers on their exposed surfaces. This is valid when the synthetic supports are required to integrate within physiological media without altering their interfacial composition and when the minimization of shear stress prevents or reduces damage to the surrounding environment. In many of these cases, hydrophilic polymer brushes assembled from surface-interacting polymer adsorbates or directly grown by surface-initiated polymerizations (SIP) are chosen. Although growing efforts by polymer chemists have been focusing on varying the composition of polymer brushes in order to attain increasingly bioinert and lubricious surfaces, the precise modulation of polymer architecture has simultaneously enabled us to substantially broaden the tuning potential for the above-mentioned properties. This feature article concentrates on reviewing this latter strategy, comparatively analyzing how polymer brush parameters such as molecular weight and grafting density, the application of block copolymers, the introduction of branching and cross-links, or the variation of polymer topology beyond the simple, linear chains determine highly technologically relevant properties, such as biopassivity and lubrication.
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Affiliation(s)
- Wenqing Yan
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Shivaprakash N Ramakrishna
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Matteo Romio
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
| | - Edmondo M Benetti
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
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11
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Sponchioni M, Capasso Palmiero U, Moscatelli D. Thermo-responsive polymers: Applications of smart materials in drug delivery and tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:589-605. [PMID: 31147031 DOI: 10.1016/j.msec.2019.04.069] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/02/2019] [Accepted: 04/22/2019] [Indexed: 01/01/2023]
Abstract
Synthetic polymers are attracting great attention in the last decades for their use in the biomedical field as nanovectors for controlled drug delivery, hydrogels and scaffolds enabling cell growth. Among them, polymers able to respond to environmental stimuli have been recently under growing consideration to impart a "smart" behavior to the final product, which is highly desirable to provide it with a specific dynamic and an advanced function. In particular, thermo-responsive polymers, materials able to undergo a discontinuous phase transition or morphological change in response to a temperature variation, are among the most studied. The development of the so-called controlled radical polymerization techniques has paved the way to a high degree of engineering for the polymer architecture and properties, which in turn brought to a plethora of sophisticated behaviors for these polymers by simply switching the external temperature. These can be exploited in many different fields, from separation to advanced optics and biosensors. The aim of this review is to critically discuss the latest advances in the development of thermo-responsive materials for biomedical applications, including a highly controlled drug delivery, mediation of cell growth and bioseparation. The focus is on the structural and design aspects that are required to exploit such materials for cutting-edge applications in the biomedical field.
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Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland.
| | - Umberto Capasso Palmiero
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Davide Moscatelli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy
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12
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Yan W, Fantin M, Ramakrishna S, Spencer ND, Matyjaszewski K, Benetti EM. Growing Polymer Brushes from a Variety of Substrates under Ambient Conditions by Cu 0-Mediated Surface-Initiated ATRP. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27470-27477. [PMID: 31276375 DOI: 10.1021/acsami.9b09529] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Cu0-mediated surface-initiated atom transfer radical polymerization (Cu0 SI-ATRP) is a highly versatile, oxygen-tolerant, and extremely controlled polymer-grafting technique that enables the modification of flat inorganic surfaces, as well as porous organic and polymeric supports of different compositions. Exploiting the intimate contact between a copper plate, acting as a source of catalyst and reducing agent, and an initiator-bearing support, Cu0 SI-ATRP enables the rapid growth of biopassive, lubricious brushes from large flat surfaces, as well as from various organic supports, including cellulose fibers and elastomers, using microliter volumes of reaction mixtures, and without the need for deoxygenation of reaction mixtures or an inert atmosphere. Thanks to a detailed analysis of its mechanism and the parameters governing the polymerization process, polymer brush growth by Cu0 SI-ATRP can be precisely modulated and adapted to be applied to morphologically and chemically different substrates, setting up the basis for translating SI-ATRP methods from academic studies into technologically relevant surface-modification approaches.
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Affiliation(s)
- Wenqing Yan
- Laboratory of Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , Zurich CH-8093 , Switzerland
| | - Marco Fantin
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Shivaprakash Ramakrishna
- Laboratory of Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , Zurich CH-8093 , Switzerland
| | - Nicholas D Spencer
- Laboratory of Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , Zurich CH-8093 , Switzerland
| | - Krzysztof Matyjaszewski
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Edmondo M Benetti
- Laboratory of Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , Zurich CH-8093 , Switzerland
- Laboratory for Biointerfaces , Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5 , St. Gallen CH-9014 , Switzerland
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13
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Jiang S, Müller M, Schönherr H. Propagation and Purification of Human Induced Pluripotent Stem Cells with Selective Homopolymer Release Surfaces. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Siyu Jiang
- Physical Chemistry I and Research Center of Micro and Nano-chemistry and Engineering (Cμ)University of Siegen Adolf-Reichwein-Strasse 2 57076 Siegen Germany
| | - Mareike Müller
- Physical Chemistry I and Research Center of Micro and Nano-chemistry and Engineering (Cμ)University of Siegen Adolf-Reichwein-Strasse 2 57076 Siegen Germany
| | - Holger Schönherr
- Physical Chemistry I and Research Center of Micro and Nano-chemistry and Engineering (Cμ)University of Siegen Adolf-Reichwein-Strasse 2 57076 Siegen Germany
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14
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Yan W, Fantin M, Spencer ND, Matyjaszewski K, Benetti EM. Translating Surface-Initiated Atom Transfer Radical Polymerization into Technology: The Mechanism of Cu 0-Mediated SI-ATRP under Environmental Conditions. ACS Macro Lett 2019; 8:865-870. [PMID: 35619512 DOI: 10.1021/acsmacrolett.9b00388] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The exceptional features of Cu0-mediated surface-initiated atom transfer radical polymerization (Cu0 SI-ATRP), and its potential for implementation in technologically relevant surface functionalizations are demonstrated thanks to a comprehensive understanding of its mechanism. Cu0 SI-ATRP enables the synthesis of multifunctional polymer brushes with a remarkable degree of control, over extremely large areas and without the need for inert atmosphere or deoxygenation of monomer solutions. When a polymerization mixture is placed between a flat copper plate and an ATRP-initiator-functionalized substrate, the vertical distance between these two overlaying surfaces determines the tolerance of the grafting process toward the oxygen, while the composition of the polymerization solution emerges as the critical parameter regulating polymer-grafting kinetics. At very small distances between the copper plate and the initiating surfaces, the oxygen dissolved in the solution is rapidly consumed via oxidation of the metallic substrate. In the presence of ligand, copper species diffuse to the surface-immobilized initiators and trigger a rapid growth of polymer brushes. Concurrently, the presence and concentration of added CuII regulates the generation of CuI-based activators through comproportionation with Cu0. Hence, under oxygen-tolerant conditions, the extent of comproportionation, together with the solvent-dependent rate constant of activation (kact) of ATRP are the main determinants of the growth rate of polymer brushes.
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Affiliation(s)
- Wenqing Yan
- Laboratory of Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
| | - Marco Fantin
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Nicholas D. Spencer
- Laboratory of Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Edmondo M. Benetti
- Laboratory of Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
- Swiss Federal Laboratories for Materials Science and Technology (EMPA), Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
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15
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Jiang S, Müller M, Schönherr H. Propagation and Purification of Human Induced Pluripotent Stem Cells with Selective Homopolymer Release Surfaces. Angew Chem Int Ed Engl 2019; 58:10563-10566. [DOI: 10.1002/anie.201903299] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/01/2019] [Indexed: 01/27/2023]
Affiliation(s)
- Siyu Jiang
- Physical Chemistry I and Research Center of Micro and Nano-chemistry and Engineering (Cμ)University of Siegen Adolf-Reichwein-Strasse 2 57076 Siegen Germany
| | - Mareike Müller
- Physical Chemistry I and Research Center of Micro and Nano-chemistry and Engineering (Cμ)University of Siegen Adolf-Reichwein-Strasse 2 57076 Siegen Germany
| | - Holger Schönherr
- Physical Chemistry I and Research Center of Micro and Nano-chemistry and Engineering (Cμ)University of Siegen Adolf-Reichwein-Strasse 2 57076 Siegen Germany
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16
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Benetti EM, Spencer ND. Using Polymers to Impart Lubricity and Biopassivity to Surfaces: Are These Properties Linked? Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900071] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Edmondo M. Benetti
- Laboratory for Surface Science and Technology, Department of MaterialsETH Zurich Vladimir-Prelog-Weg 5 CH-8093 Zurich Switzerland
| | - Nicholas D. Spencer
- Laboratory for Surface Science and Technology, Department of MaterialsETH Zurich Vladimir-Prelog-Weg 5 CH-8093 Zurich Switzerland
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17
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Jiang S, Lyu B, Müller M, Wesner D, Schönherr H. Thickness-Encoded Micropatterns in One-Component Thermoresponsive Polymer Brushes for Culture and Triggered Release of Pancreatic Tumor Cell Monolayers and Spheroids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:14670-14677. [PMID: 30474988 DOI: 10.1021/acs.langmuir.8b03040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fabrication, characterization, and application of micropatterned one-component poly(di(ethylene glycol)methyl ether methacrylate) (PDEGMA) brushes for monolayer cell and spheroid culture and temperature-triggered release are reported. Micropatterns of various shapes and sizes were designed to possess a unique functionality imparted by thermoresponsive thin PDEGMA patches, which are cell adhesive at 37 °C, embedded in a much thicker cell-resistant PDEGMA matrix that does not exhibit measurable thermoresponsive properties. Depending on the cell seeding density, PaTu 8988t human pancreatic tumor cells or spheroids were cultured area-selectively, confined by the 40 ± 4 nm thick passivating PDEGMA matrix, and could be released on demand by a mild thermally triggered brush swelling in the 5 ± 1 nm thin regions. As shown by surface plasmon resonance (SPR) measurements, in contrast to the thinner brushes, the thicker brushes exhibited virtually no fibronectin adhesive properties at 37 °C, whereas at 25 °C, both areas showed similar protein resistant behavior. The quasi-2D thickness-encoded micropatterns were shown to be useful templates for the growth of 3D multicellular aggregates. Thermally induced release after 5 days of incubation afforded 3D cell spheroids comprising up to 99% viable cells demonstrating that the system can be used as a 3D spheroid in vitro model for basic tumor research and anticancer drug screenings.
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Affiliation(s)
- Siyu Jiang
- Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), Physical Chemistry I , University of Siegen , Adolf-Reichwein-Street 2 , 57076 Siegen , Germany
| | - Beier Lyu
- Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), Physical Chemistry I , University of Siegen , Adolf-Reichwein-Street 2 , 57076 Siegen , Germany
| | - Mareike Müller
- Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), Physical Chemistry I , University of Siegen , Adolf-Reichwein-Street 2 , 57076 Siegen , Germany
| | - Daniel Wesner
- Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), Physical Chemistry I , University of Siegen , Adolf-Reichwein-Street 2 , 57076 Siegen , Germany
| | - Holger Schönherr
- Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), Physical Chemistry I , University of Siegen , Adolf-Reichwein-Street 2 , 57076 Siegen , Germany
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18
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Santos Gomes B, Cantini E, Tommasone S, Gibson JS, Wang X, Zhu Q, Ma J, McGettrick JD, Watson TM, Preece JA, Kirkman-Brown JC, Publicover SJ, Mendes PM. On-Demand Electrical Switching of Antibody-Antigen Binding on Surfaces. ACS APPLIED BIO MATERIALS 2018; 1:738-747. [PMID: 34996164 DOI: 10.1021/acsabm.8b00201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The development of stimuli-responsive interfaces between synthetic materials and biological systems is providing the unprecedented ability to modulate biomolecular interactions for a diverse range of biotechnological and biomedical applications. Antibody-antigen binding interactions are at the heart of many biosensing platforms, but no attempts have been made yet to control antibody-antigen binding in an on-demand fashion. Herein, a molecular surface was designed and developed that utilizes an electric potential to drive a conformational change in surface bound peptide moiety, to give on-demand control over antigen-antibody interactions on sensor chips. The molecularly engineered surfaces allow for propagation of conformational changes from the molecular switching unit to a distal progesterone antigen, resulting in promotion (ON state) or inhibition (OFF state) of progesterone antibody binding. The approach presented here can be generally applicable to other antigen-antibody systems and meets the technological needs for in situ long-term assessment of biological processes and disease monitoring on-demand.
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Affiliation(s)
- Bárbara Santos Gomes
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Eleonora Cantini
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Stefano Tommasone
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Joshua S Gibson
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Xingyong Wang
- School of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Qiang Zhu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Jing Ma
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | | | - Trystan M Watson
- College of Engineering, Swansea University, Swansea SA1 8EN, U.K
| | - Jon A Preece
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Jackson C Kirkman-Brown
- Centre for Human Reproductive Science, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Stephen J Publicover
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Paula M Mendes
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
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19
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Murdoch TJ, Humphreys BA, Johnson EC, Webber GB, Wanless EJ. Specific ion effects on thermoresponsive polymer brushes: Comparison to other architectures. J Colloid Interface Sci 2018; 526:429-450. [DOI: 10.1016/j.jcis.2018.04.086] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/20/2018] [Accepted: 04/23/2018] [Indexed: 02/06/2023]
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20
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Benetti EM. Quasi-3D-Structured Interfaces by Polymer Brushes. Macromol Rapid Commun 2018; 39:e1800189. [DOI: 10.1002/marc.201800189] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/10/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Edmondo M. Benetti
- Polymer Surfaces Group; Laboratory for Surface Science and Technology; Department of Materials; ETH Zürich; Vladimir-Prelog-Weg 5/10 8093 Zürich Switzerland
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21
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Zhang H, Zheng X, Ahmed W, Yao Y, Bai J, Chen Y, Gao C. Design and Applications of Cell-Selective Surfaces and Interfaces. Biomacromolecules 2018; 19:1746-1763. [PMID: 29665330 DOI: 10.1021/acs.biomac.8b00264] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Tissue regeneration involves versatile types of cells. The accumulation and disorganized behaviors of undesired cells impair the natural healing process, leading to uncontrolled immune response, restenosis, and/or fibrosis. Cell-selective surfaces and interfaces can have specific and positive effects on desired types of cells, allowing tissue regeneration with restored structures and functions. This review outlines the importance of surfaces and interfaces of biomaterials with cell-selective properties. The chemical and biological cues including peptides, antibodies, and other molecules, physical cues such as topography and elasticity, and physiological cues referring mainly to interactions between cells-cells and cell-chemokines or cytokines are effective modulators for achieving cell selectivity upon being applied into the design of biomaterials. Cell-selective biomaterials have also shown practical significance in tissue regeneration, in particular for endothelialization, nerve regeneration, capture of stem cells, and regeneration of tissues of multiple structures and functions.
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Affiliation(s)
- Haolan Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Xiaowen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Wajiha Ahmed
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Yuejun Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Jun Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Yicheng Chen
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine , Zhejiang University , Hangzhou 310016 , China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
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22
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Dehghani ES, Ramakrishna SN, Spencer ND, Benetti EM. Engineering Lubricious, Biopassive Polymer Brushes by Surface-Initiated, Controlled Radical Polymerization. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00494] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Ella S. Dehghani
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
| | - Shivaprakash N. Ramakrishna
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
| | - Nicholas D. Spencer
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
| | - Edmondo M. Benetti
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
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23
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24
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Hall AR, Geoghegan M. Polymers and biopolymers at interfaces. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2018; 81:036601. [PMID: 29368695 DOI: 10.1088/1361-6633/aa9e9c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
This review updates recent progress in the understanding of the behaviour of polymers at surfaces and interfaces, highlighting examples in the areas of wetting, dewetting, crystallization, and 'smart' materials. Recent developments in analysis tools have yielded a large increase in the study of biological systems, and some of these will also be discussed, focussing on areas where surfaces are important. These areas include molecular binding events and protein adsorption as well as the mapping of the surfaces of cells. Important techniques commonly used for the analysis of surfaces and interfaces are discussed separately to aid the understanding of their application.
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Affiliation(s)
- A R Hall
- Department of Physics and Astronomy, University of Sheffield, Hounsfield Road, Sheffield S3 7RH, United Kingdom. Fraunhofer Project Centre for Embedded Bioanalytical Systems, Dublin City University, Glasnevin, Dublin 9, Ireland
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25
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Dalier F, Dubacheva GV, Coniel M, Zanchi D, Galtayries A, Piel M, Marie E, Tribet C. Mixed Copolymer Adlayers Allowing Reversible Thermal Control of Single Cell Aspect Ratio. ACS APPLIED MATERIALS & INTERFACES 2018; 10:2253-2258. [PMID: 29314825 DOI: 10.1021/acsami.7b18513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Dynamic guidance of living cells is achieved by fine-tuning and spatiotemporal modulation on artificial polymer layers enabling reversible peptide display. Adjustment of surface composition and interactions is obtained by coadsorption of mixed poly(lysine) derivatives, grafted with either repellent PEG, RGD adhesion peptides, or T-responsive poly(N-isopropylacrylamide) strands. Deposition of mixed adlayers provides a straightforward mean to optimize complex substrates, which is here implemented to achieve (1) thermal control of ligand accessibility and (2) adjustment of relative adhesiveness between adjacent micropatterns, while preserving cell attachment during thermal cycles. The reversible polarization of HeLa cells along orthogonal stripes mimics guidance along natural matrices.
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Affiliation(s)
- F Dalier
- PASTEUR, Département Chimie, Ecole Normale Supérieure, PSL Research University, Sorbonne Universités, UPMC Université Paris 06, CNRS , 75005 Paris, France
| | - G V Dubacheva
- PASTEUR, Département Chimie, Ecole Normale Supérieure, PSL Research University, Sorbonne Universités, UPMC Université Paris 06, CNRS , 75005 Paris, France
| | - M Coniel
- PASTEUR, Département Chimie, Ecole Normale Supérieure, PSL Research University, Sorbonne Universités, UPMC Université Paris 06, CNRS , 75005 Paris, France
| | - D Zanchi
- PASTEUR, Département Chimie, Ecole Normale Supérieure, PSL Research University, Sorbonne Universités, UPMC Université Paris 06, CNRS , 75005 Paris, France
- Université de Paris 7 Denis Diderot , 5 rue Thomas Mann, 75013 Paris, France
| | | | | | - E Marie
- PASTEUR, Département Chimie, Ecole Normale Supérieure, PSL Research University, Sorbonne Universités, UPMC Université Paris 06, CNRS , 75005 Paris, France
| | - C Tribet
- PASTEUR, Département Chimie, Ecole Normale Supérieure, PSL Research University, Sorbonne Universités, UPMC Université Paris 06, CNRS , 75005 Paris, France
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26
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Mendrek B, Żymełka-Miara I, Sieroń Ł, Fus A, Balin K, Kubacki J, Smet M, Trzebicka B, Sieroń AL, Kowalczuk A. Stable star polymer nanolayers and their thermoresponsiveness as a tool for controlled culture and detachment of fibroblast sheets. J Mater Chem B 2018; 6:641-655. [DOI: 10.1039/c7tb02748f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Star polymer nanolayers were successfully used as surfaces for fibroblast adhesion and proliferation, followed by their detachment in the form of a cell sheet, controlled by a temperature decrease.
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Affiliation(s)
- Barbara Mendrek
- Centre of Polymer and Carbon Materials
- Polish Academy of Sciences
- 41-819 Zabrze
- Poland
| | - Iwona Żymełka-Miara
- Centre of Polymer and Carbon Materials
- Polish Academy of Sciences
- 41-819 Zabrze
- Poland
| | - Łukasz Sieroń
- Department of Molecular Biology and Genetics
- School of Medicine in Katowice
- Medical University of Silesia
- 40-752 Katowice
- Poland
| | - Agnieszka Fus
- Department of Molecular Biology and Genetics
- School of Medicine in Katowice
- Medical University of Silesia
- 40-752 Katowice
- Poland
| | - Katarzyna Balin
- A. Chelkowski Institute of Physics
- University of Silesia
- 40-007 Katowice
- Poland
- Silesian Center for Education and Interdisciplinary Research
| | - Jerzy Kubacki
- A. Chelkowski Institute of Physics
- University of Silesia
- 40-007 Katowice
- Poland
- Silesian Center for Education and Interdisciplinary Research
| | - Mario Smet
- Department of Chemistry
- University of Leuven
- B-3001 Leuven (Heverlee)
- Belgium
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials
- Polish Academy of Sciences
- 41-819 Zabrze
- Poland
| | - Aleksander L. Sieroń
- Department of Molecular Biology and Genetics
- School of Medicine in Katowice
- Medical University of Silesia
- 40-752 Katowice
- Poland
| | - Agnieszka Kowalczuk
- Centre of Polymer and Carbon Materials
- Polish Academy of Sciences
- 41-819 Zabrze
- Poland
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27
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Großhans S, Lilge I, Schönherr H. Detailed Analysis of Pancreatic Tumor Cell Attachment on Gradient PDEGMA Brushes. Macromol Biosci 2017; 18. [PMID: 29280561 DOI: 10.1002/mabi.201700317] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 11/06/2017] [Indexed: 12/19/2022]
Abstract
Poly(di(ethylene glycol) methyl ether methacrylate) (PDEGMA) brushes show interesting thermoresponsive behavior that can be applied for cell release surfaces. Here it is shown that PDEGMA thickness gradients, which are synthesized by surface-initiated atom transfer radical polymerization, allow the systematic and precise analysis of the attachment of PaTu 8988 cells. By pumping the polymerization solution into the reactor with vertically fixed initiator samples, PDEGMA gradients with linearly increasing dry ellipsometric thickness with typical slopes of 2.5 nm cm-1 are obtained. A very narrow transition of PaTu 8988t cell attachment is observed that starts for a thickness larger than 7.1 ± 0.2 nm. For PDEGMA layers thicker than 8.7 ± 0.2 nm no attached cells are found. This very narrow transition in brush properties within a thickness difference of <2 nm from cell-adherent to cell-nonadherent can be determined in much greater detail than before owing to the thickness gradients with shallow slope.
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Affiliation(s)
- Sabine Großhans
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cµ), University of Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Inga Lilge
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cµ), University of Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Holger Schönherr
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cµ), University of Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
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28
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Hua Z, Keogh R, Li Z, Wilks TR, Chen G, O’Reilly RK. Reversibly Manipulating the Surface Chemistry of Polymeric Nanostructures via a "Grafting To" Approach Mediated by Nucleobase Interactions. Macromolecules 2017; 50:3662-3670. [PMID: 28529382 PMCID: PMC5435456 DOI: 10.1021/acs.macromol.7b00286] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/22/2017] [Indexed: 12/13/2022]
Abstract
"Grafting to" polymeric nanostructures or surfaces is a simple and versatile approach to achieve functionalization. Herein, we describe the formation of mixed polymer-grafted nanoparticles through a supramolecular "grafting to" method that exploits multiple hydrogen-bonding interactions between the thymine (T)-containing cores of preformed micelles and the complementary nucleobase adenine (A) of added diblock copolymers. To demonstrate this new "grafting to" approach, mixed-corona polymeric nanoparticles with different sizes were prepared by the addition of a series of complementary diblock copolymers containing thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) to a preformed micelle with a different coronal forming block, poly(4-acryloylmorpholine) (PNAM). PNIPAM chains were distributed throughout the corona and facilitated a fast and fully reversible size change of the resulting mixed-corona micelles upon heating. Through the introduction of an environmentally sensitive fluorophore, the reversible changes in nanoparticle size and coronal composition could be easily probed. Furthermore, preparation of mixed-corona micelles also enabled ligands, such as d-mannose, to be concealed and displayed on the micelle surface. This supramolecular "grafting to" approach provides a straightforward route to fabricate highly functionalized mixed polymeric nanostructures or surfaces with potential applications in targeted diagnosis or therapy and responsive surfaces.
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Affiliation(s)
- Zan Hua
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Robert Keogh
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Zhen Li
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Thomas R. Wilks
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
| | - Guosong Chen
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Rachel K. O’Reilly
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
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29
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Zoppe JO, Ataman NC, Mocny P, Wang J, Moraes J, Klok HA. Surface-Initiated Controlled Radical Polymerization: State-of-the-Art, Opportunities, and Challenges in Surface and Interface Engineering with Polymer Brushes. Chem Rev 2017; 117:1105-1318. [PMID: 28135076 DOI: 10.1021/acs.chemrev.6b00314] [Citation(s) in RCA: 600] [Impact Index Per Article: 85.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of polymer brushes by surface-initiated controlled radical polymerization (SI-CRP) techniques has become a powerful approach to tailor the chemical and physical properties of interfaces and has given rise to great advances in surface and interface engineering. Polymer brushes are defined as thin polymer films in which the individual polymer chains are tethered by one chain end to a solid interface. Significant advances have been made over the past years in the field of polymer brushes. This includes novel developments in SI-CRP, as well as the emergence of novel applications such as catalysis, electronics, nanomaterial synthesis and biosensing. Additionally, polymer brushes prepared via SI-CRP have been utilized to modify the surface of novel substrates such as natural fibers, polymer nanofibers, mesoporous materials, graphene, viruses and protein nanoparticles. The last years have also seen exciting advances in the chemical and physical characterization of polymer brushes, as well as an ever increasing set of computational and simulation tools that allow understanding and predictions of these surface-grafted polymer architectures. The aim of this contribution is to provide a comprehensive review that critically assesses recent advances in the field and highlights the opportunities and challenges for future work.
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Affiliation(s)
- Justin O Zoppe
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Nariye Cavusoglu Ataman
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Piotr Mocny
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Jian Wang
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - John Moraes
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
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30
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Xue X, Thiagarajan L, Braim S, Saunders BR, Shakesheff KM, Alexander C. Upper critical solution temperature thermo-responsive polymer brushes and a mechanism for controlled cell attachment. J Mater Chem B 2017; 5:4926-4933. [DOI: 10.1039/c7tb00052a] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report the synthesis of thermo-responsive polymer brushes with Upper Critical Solution Temperature (UCST)-type behaviour on glass to provide a new means to control cell attachment.
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Affiliation(s)
- Xuan Xue
- School of Pharmacy
- The University of Nottingham
- University Park
- Nottingham
- UK
| | | | - Shwana Braim
- School of Pharmacy
- The University of Nottingham
- University Park
- Nottingham
- UK
| | | | - Kevin M Shakesheff
- School of Pharmacy
- The University of Nottingham
- University Park
- Nottingham
- UK
| | - Cameron Alexander
- School of Pharmacy
- The University of Nottingham
- University Park
- Nottingham
- UK
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31
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Voß Y, Wassel E, Jiang S, Song Q, Druzhinin SI, Schönherr H. Thin Poly(Di(Ethylene Glycol)Methyl Ether Methacrylate) Homopolymer Brushes Allow Controlled Adsorption and Desorption of PaTu 8988t Cells. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600337] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 09/23/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Yvonne Voß
- University of Siegen; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); Physical Chemistry I; Adolf-Reichwein-Str. 2 57076 Siegen Germany
| | - Ekram Wassel
- University of Siegen; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); Physical Chemistry I; Adolf-Reichwein-Str. 2 57076 Siegen Germany
| | - Siyu Jiang
- University of Siegen; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); Physical Chemistry I; Adolf-Reichwein-Str. 2 57076 Siegen Germany
| | - Qimeng Song
- University of Siegen; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); Physical Chemistry I; Adolf-Reichwein-Str. 2 57076 Siegen Germany
| | - Sergey I. Druzhinin
- University of Siegen; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); Physical Chemistry I; Adolf-Reichwein-Str. 2 57076 Siegen Germany
| | - Holger Schönherr
- University of Siegen; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); Physical Chemistry I; Adolf-Reichwein-Str. 2 57076 Siegen Germany
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32
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Wassel E, Jiang S, Song Q, Vogt S, Nöll G, Druzhinin SI, Schönherr H. Thickness Dependence of Bovine Serum Albumin Adsorption on Thin Thermoresponsive Poly(diethylene glycol) Methyl Ether Methacrylate Brushes by Surface Plasmon Resonance Measurements. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9360-9370. [PMID: 27531168 DOI: 10.1021/acs.langmuir.6b02708] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study reports on the dependence of the temperature-induced changes in the properties of thin thermoresponsive poly(diethylene glycol) methyl ether methacrylate (PDEGMA) layers of end-tethered chains on polymer thickness and grafting density. PDEGMA layers with a dry ellipsometric thickness of 5-40 nm were synthesized by surface-initiated atom transfer radical polymerization on gold. To assess the temperature-induced changes, the adsorption of bovine serum albumin (BSA) was investigated systematically as a function of film thickness, temperature, and grafting density by surface plasmon resonance (SPR), complemented by wettability and quartz crystal microbalance with dissipation monitoring (QCM-D) measurements. BSA adsorption on PDEGMA brushes is shown to differ significantly above and below an apparent transition temperature. This surface transition temperature was found to depend linearly on the PDEGMA thickness and changed from 35 °C at 5 nm thickness to 48 °C at 23 nm. Similarly, a change of the grafting density enables the adjustment of this transition temperature presumably via a transition from the mushroom to the brush regime. Finally, BSA that adsorbed irreversibly on polymer brushes at temperatures above the transition temperature can be desorbed by reducing the temperature to 25 °C, underlining the reversibly switchable properties of PDEGMA brushes in response to temperature changes.
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Affiliation(s)
- Ekram Wassel
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), and ‡NRW Junior Research Group for Nanotechnology, Organic Chemistry, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen , Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Siyu Jiang
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), and ‡NRW Junior Research Group for Nanotechnology, Organic Chemistry, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen , Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Qimeng Song
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), and ‡NRW Junior Research Group for Nanotechnology, Organic Chemistry, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen , Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Stephan Vogt
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), and ‡NRW Junior Research Group for Nanotechnology, Organic Chemistry, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen , Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Gilbert Nöll
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), and ‡NRW Junior Research Group for Nanotechnology, Organic Chemistry, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen , Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Sergey I Druzhinin
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), and ‡NRW Junior Research Group for Nanotechnology, Organic Chemistry, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen , Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Holger Schönherr
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), and ‡NRW Junior Research Group for Nanotechnology, Organic Chemistry, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen , Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
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33
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Synthesis and characterization of well-defined ligand-terminated block copolymer brushes for multifunctional biointerfaces. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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34
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Desseaux S, Hinestrosa JP, Schüwer N, Lokitz BS, Ankner JF, Kilbey SM, Voitchovsky K, Klok HA. Swelling Behavior and Nanomechanical Properties of (Peptide-Modified) Poly(2-hydroxyethyl methacrylate) and Poly(poly(ethylene glycol) methacrylate) Brushes. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00881] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Solenne Desseaux
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Juan Pablo Hinestrosa
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Nicolas Schüwer
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | | | | | - S. Michael Kilbey
- Departments of Chemistry and Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996-1600, United States
| | - Kislon Voitchovsky
- Department
of Physics, Durham University, South Road, Durham DH1 3LE, U.K
| | - Harm-Anton Klok
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
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35
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Müller S, Cavallaro A, Vasilev K, Voelcker NH, Schönherr H. Temperature-Controlled Antimicrobial Release from Poly(diethylene glycol methylether methacrylate)-Functionalized Bottleneck-Structured Porous Silicon for the Inhibition of Bacterial Growth. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600099] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Stephanie Müller
- Physical Chemistry I; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); University of Siegen; Adolf-Reichwein-Str. 2 57076 Siegen Germany
| | - Alex Cavallaro
- School of Engineering; University of South Australia; Mawson Lakes SA 5095 Australia
| | - Krasimir Vasilev
- School of Engineering; University of South Australia; Mawson Lakes SA 5095 Australia
| | - Nicolas H. Voelcker
- Future Industries Institute; University of South Australia; Mawson Lakes Boulevard 5095 Adelaide Australia
| | - Holger Schönherr
- Physical Chemistry I; Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ); University of Siegen; Adolf-Reichwein-Str. 2 57076 Siegen Germany
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36
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Dalier F, Eghiaian F, Scheuring S, Marie E, Tribet C. Temperature-Switchable Control of Ligand Display on Adlayers of Mixed Poly(lysine)-g-(PEO) and Poly(lysine)-g-(ligand-modified poly-N-isopropylacrylamide). Biomacromolecules 2016; 17:1727-36. [DOI: 10.1021/acs.biomac.6b00136] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- F. Dalier
- Ecole Normale
Supérieure-PSL Research University, Dpt Chimie, Sorbonne Universités
- UPMC Univ. Paris 06, CNRS UMR 8640, 24 rue Lhomond, 75005 Paris, France
| | - F. Eghiaian
- U1006 INSERM,
Aix-Marseille Université, Parc Scientifique et Technologique
de Luminy, 163 av. de Luminy, 13009 Marseille, France
| | - S. Scheuring
- U1006 INSERM,
Aix-Marseille Université, Parc Scientifique et Technologique
de Luminy, 163 av. de Luminy, 13009 Marseille, France
| | - E. Marie
- Ecole Normale
Supérieure-PSL Research University, Dpt Chimie, Sorbonne Universités
- UPMC Univ. Paris 06, CNRS UMR 8640, 24 rue Lhomond, 75005 Paris, France
| | - C. Tribet
- Ecole Normale
Supérieure-PSL Research University, Dpt Chimie, Sorbonne Universités
- UPMC Univ. Paris 06, CNRS UMR 8640, 24 rue Lhomond, 75005 Paris, France
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37
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Shen Y, Li G, Ma Y, Yu D, Sun J, Li Z. Smart surfaces based on thermo-responsive polymer brushes prepared from L-alanine derivatives for cell capture and release. SOFT MATTER 2015; 11:7502-7506. [PMID: 26279262 DOI: 10.1039/c5sm01661d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two novel thermo-responsive polymer brushes were prepared from L-alanine derivatives using the surface-initiated atom transfer radical polymerization (SI-ATRP) technique. The temperature-induced cell capture and release on both polymer brush modified substrates were further explored.
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Affiliation(s)
- Yong Shen
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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38
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Hirschbiel AF, Geyer S, Yameen B, Welle A, Nikolov P, Giselbrecht S, Scholpp S, Delaittre G, Barner-Kowollik C. Photolithographic patterning of 3D-formed polycarbonate films for targeted cell guiding. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:2621-2626. [PMID: 25787094 DOI: 10.1002/adma.201500426] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Indexed: 06/04/2023]
Abstract
A facile photolithographic platform for the design of cell-guiding polymeric substrates is introduced. Specific areas of the substrate are photo-deactivated for the subsequent growth of bioresistant polymer brushes, creating zones for cell proliferation, and protein adhesion.
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Affiliation(s)
- Astrid F Hirschbiel
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces (IBG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany; Preparative Macromolecular Chemistry Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) Engesserstr. 18, 76128, Karlsruhe, Germany
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