51
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Cobo I, Li M, Sumerlin BS, Perrier S. Smart hybrid materials by conjugation of responsive polymers to biomacromolecules. NATURE MATERIALS 2015; 14:143-59. [PMID: 25401924 DOI: 10.1038/nmat4106] [Citation(s) in RCA: 420] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Accepted: 09/04/2014] [Indexed: 05/18/2023]
Abstract
The chemical structure and function of biomacromolecules has evolved to fill many essential roles in biological systems. More specifically, proteins, peptides, nucleic acids and polysaccharides serve as vital structural components, and mediate chemical transformations and energy/information storage processes required to sustain life. In many cases, the properties and applications of biological macromolecules can be further expanded by attaching synthetic macromolecules. The modification of biomacromolecules by attaching a polymer that changes its properties in response to environmental variations, thus affecting the properties of the biomacromolecule, has led to the emergence of a new family of polymeric biomaterials. Here, we summarize techniques for conjugating responsive polymers to biomacromolecules and highlight applications of these bioconjugates reported so far. In doing so, we aim to show how advances in synthetic tools could lead to rapid expansion in the variety and uses of responsive bioconjugates.
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Affiliation(s)
- Isidro Cobo
- Key Centre for Polymers &Colloids, School of Chemistry, The University of Sydney, New South Wales 2006, Australia
| | - Ming Li
- Tyco Fire Protection Products, Mansfield, Texas 76063, USA
| | - Brent S Sumerlin
- George &Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science &Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA
| | - Sébastien Perrier
- 1] Department of Chemistry, The University of Warwick, Coventry CV4 7AL, UK [2] Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
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52
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Vaish A, Roy SG, De P. Synthesis of amino acid based covalently cross-linked polymeric gels using tetrakis(hydroxymethyl) phosphonium chloride as a cross-linker. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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53
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Lau HK, Kiick KL. Opportunities for multicomponent hybrid hydrogels in biomedical applications. Biomacromolecules 2015; 16:28-42. [PMID: 25426888 PMCID: PMC4294583 DOI: 10.1021/bm501361c] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 11/14/2014] [Indexed: 02/08/2023]
Abstract
Hydrogels provide mechanical support and a hydrated environment that offer good cytocompatibility and controlled release of molecules, and myriad hydrogels thus have been studied for biomedical applications. In the past few decades, research in these areas has shifted increasingly to multicomponent hydrogels that better capture the multifunctional nature of native biological environments and that offer opportunities to selectively tailor materials properties. This review summarizes recent approaches aimed at producing multicomponent hydrogels, with descriptions of contemporary chemical and physical approaches for forming networks, and of the use of both synthetic and biologically derived molecules to impart desired properties. Specific multicomponent materials with enhanced mechanical properties are presented, as well as materials in which multiple biological functions are imparted for applications in tissue engineering, cancer treatment, and gene therapies. The progress in the field suggests significant promise for these approaches in the development of biomedically relevant materials.
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Affiliation(s)
- Hang Kuen Lau
- Department of Materials Science and Engineering and ‡Biomedical Engineering, University of Delaware , Newark Delaware 19716, United States
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54
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Espeel P, Du Prez FE. One-pot multi-step reactions based on thiolactone chemistry: A powerful synthetic tool in polymer science. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2014.07.008] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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55
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Falatach R, McGlone C, Al-Abdul-Wahid MS, Averick S, Page RC, Berberich JA, Konkolewicz D. The best of both worlds: active enzymes by grafting-to followed by grafting-from a protein. Chem Commun (Camb) 2015; 51:5343-6. [DOI: 10.1039/c4cc09287b] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrophilic polymers were attached to lysozyme by a combination of grafting-to and grafting-from approaches using RAFT polymerization.
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Affiliation(s)
- Rebecca Falatach
- Department of Chemical
- Paper and Biomedical Engineering
- Miami University
- Oxford
- USA
| | - Cameron McGlone
- Department of Chemistry and Biochemistry
- Miami University
- Oxford
- USA
| | | | - Saadyah Averick
- Laboratory for Biomolecular Medicine
- Allegheny Health Network Research Institute
- Pittsburgh
- USA
| | - Richard C. Page
- Department of Chemistry and Biochemistry
- Miami University
- Oxford
- USA
| | - Jason A. Berberich
- Department of Chemical
- Paper and Biomedical Engineering
- Miami University
- Oxford
- USA
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56
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Wu L, Glebe U, Böker A. Surface-initiated controlled radical polymerizations from silica nanoparticles, gold nanocrystals, and bionanoparticles. Polym Chem 2015. [DOI: 10.1039/c5py00525f] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review summarizes recent progress in surface-initiated controlled radical polymerizations from silica nanoparticles, gold nanocrystals, and bionanoparticles.
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Affiliation(s)
- Lei Wu
- Fraunhofer Institute for Applied Polymer Research IAP
- 14476 Potsdam-Golm
- Germany
- DWI – Leibniz Institute for Interactive Materials e.V
- Lehrstuhl für Makromolekulare Materialien und Oberflächen
| | - Ulrich Glebe
- Fraunhofer Institute for Applied Polymer Research IAP
- 14476 Potsdam-Golm
- Germany
| | - Alexander Böker
- Fraunhofer Institute for Applied Polymer Research IAP
- 14476 Potsdam-Golm
- Germany
- Lehrstuhl für Polymermaterialien und Polymertechnologie
- Universität Potsdam
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57
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Hoenders D, Tigges T, Walther A. Combining the incompatible: Block copolymers consecutively displaying activated esters and amines and their use as protein-repellent surface modifiers with multivalent biorecognition. Polym Chem 2015. [DOI: 10.1039/c4py00928b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the facile synthesis and orthogonal functionalization of diblock copolymers consisting of two incompatible segments, i.e. primary amines and activated esters, and demonstrate their use as protein-repellent brush layers with multivalent biorecognition.
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Affiliation(s)
- Daniel Hoenders
- DWI – Leibniz-Institute for Interactive Materials
- 52074 Aachen
- Germany
| | - Thomas Tigges
- DWI – Leibniz-Institute for Interactive Materials
- 52074 Aachen
- Germany
| | - Andreas Walther
- DWI – Leibniz-Institute for Interactive Materials
- 52074 Aachen
- Germany
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58
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Vanparijs N, Maji S, Louage B, Voorhaar L, Laplace D, Zhang Q, Shi Y, Hennink WE, Hoogenboom R, De Geest BG. Polymer-protein conjugation via a ‘grafting to’ approach – a comparative study of the performance of protein-reactive RAFT chain transfer agents. Polym Chem 2015. [DOI: 10.1039/c4py01224k] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The performances of various protein-reactive RAFT CTAs to afford polymer-protein conjugation via a grafting-to approach were compared.
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Affiliation(s)
- N. Vanparijs
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
| | - S. Maji
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| | - B. Louage
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
| | - L. Voorhaar
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| | - D. Laplace
- Laboratory for Organic Synthesis
- Department of Organic Chemistry
- 9000 Ghent
- Belgium
| | - Q. Zhang
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| | - Y. Shi
- Department of Pharmaceutics
- Utrecht Institute for Pharmaceutical Sciences
- Utrecht University
- 3584 Utrecht
- The Netherlands
| | - W. E. Hennink
- Department of Pharmaceutics
- Utrecht Institute for Pharmaceutical Sciences
- Utrecht University
- 3584 Utrecht
- The Netherlands
| | - R. Hoogenboom
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| | - B. G. De Geest
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
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59
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Vanparijs N, De Coen R, Laplace D, Louage B, Maji S, Lybaert L, Hoogenboom R, De Geest BG. Transiently responsive protein–polymer conjugates via a ‘grafting-from’ RAFT approach for intracellular co-delivery of proteins and immune-modulators. Chem Commun (Camb) 2015; 51:13972-5. [DOI: 10.1039/c5cc04809e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
‘Grafting-from’ RAFT polymerization is used to synthesize protein–polymer conjugates that change from the soluble to the aggregated state in response to temperature, but become fully soluble by acid triggered hydrolysis.
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Affiliation(s)
- N. Vanparijs
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
| | - R. De Coen
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
| | - D. Laplace
- Department of Organic and Macromolecular Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - B. Louage
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
| | - S. Maji
- Department of Organic and Macromolecular Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - L. Lybaert
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
| | - R. Hoogenboom
- Department of Organic and Macromolecular Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - B. G. De Geest
- Department of Pharmaceutics
- Ghent University
- 9000 Ghent
- Belgium
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60
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Espeel P, Du Prez FE. “Click”-Inspired Chemistry in Macromolecular Science: Matching Recent Progress and User Expectations. Macromolecules 2014. [DOI: 10.1021/ma501386v] [Citation(s) in RCA: 207] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pieter Espeel
- Department
of Organic and
Macromolecular Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Ghent, Belgium
| | - Filip E. Du Prez
- Department
of Organic and
Macromolecular Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Ghent, Belgium
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61
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Tan H, Zhao L, Liu W, Ren L, Xu S, Chen L, Li W. Synthesis of thermo-responsive polymer–protein conjugates through disulfide bonding. RSC Adv 2014. [DOI: 10.1039/c4ra06813k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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62
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Pelegri-O'Day EM, Lin EW, Maynard HD. Therapeutic protein-polymer conjugates: advancing beyond PEGylation. J Am Chem Soc 2014; 136:14323-32. [PMID: 25216406 DOI: 10.1021/ja504390x] [Citation(s) in RCA: 460] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Protein-polymer conjugates are widely used as therapeutics. All Food and Drug Administration (FDA)-approved protein conjugates are covalently linked to poly(ethylene glycol) (PEG). These PEGylated drugs have longer half-lives in the bloodstream, leading to less frequent dosing, which is a significant advantage for patients. However, there are some potential drawbacks to PEG that are driving the development of alternatives. Polymers that display enhanced pharmacokinetic properties along with additional advantages such as improved stability or degradability will be important to advance the field of protein therapeutics. This perspective presents a summary of protein-PEG conjugates for therapeutic use and alternative technologies in various stages of development as well as suggestions for future directions. Established methods of producing protein-PEG conjugates and new approaches utilizing controlled radical polymerization are also covered.
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Affiliation(s)
- Emma M Pelegri-O'Day
- Department of Chemistry and Biochemistry and California Nanosystems Institute, University of California, Los Angeles , 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
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63
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Peng CH, Yang TY, Zhao Y, Fu X. Reversible deactivation radical polymerization mediated by cobalt complexes: recent progress and perspectives. Org Biomol Chem 2014; 12:8580-7. [DOI: 10.1039/c4ob01427h] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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64
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Hovlid ML, Lau JL, Breitenkamp K, Higginson CJ, Laufer B, Manchester M, Finn MG. Encapsidated atom-transfer radical polymerization in Qβ virus-like nanoparticles. ACS NANO 2014; 8:8003-14. [PMID: 25073013 PMCID: PMC4148144 DOI: 10.1021/nn502043d] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 07/16/2014] [Indexed: 04/14/2023]
Abstract
Virus-like particles (VLPs) are unique macromolecular structures that hold great promise in biomedical and biomaterial applications. The interior of the 30 nm-diameter Qβ VLP was functionalized by a three-step process: (1) hydrolytic removal of endogenously packaged RNA, (2) covalent attachment of initiator molecules to unnatural amino acid residues located on the interior capsid surface, and (3) atom-transfer radical polymerization of tertiary amine-bearing methacrylate monomers. The resulting polymer-containing particles were moderately expanded in size; however, biotin-derivatized polymer strands were only very weakly accessible to avidin, suggesting that most of the polymer was confined within the protein shell. The polymer-containing particles were also found to exhibit physical and chemical properties characteristic of positively charged nanostructures, including the ability to easily enter mammalian cells and deliver functional small interfering RNA.
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Affiliation(s)
- Marisa L. Hovlid
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Jolene L. Lau
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Kurt Breitenkamp
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Cody J. Higginson
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Burkhardt Laufer
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Marianne Manchester
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, California 92093, United States
| | - M. G. Finn
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
- School of Chemistry and Biochemistry, School of Biology, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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65
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Yang PC, Chen HC, Wen HW, Wu PI. Preparation and self-assembly of stimuli-responsive azobenzene-containing diblock copolymers through microwave-assisted RAFT polymerization. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27360] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Po-Chih Yang
- Department of Chemical Engineering and Materials Science; Yuan Ze University; Chung-Li 32003 Taoyuan Taiwan Republic of China
| | - Hsin-Cheng Chen
- Department of Chemical Engineering and Materials Science; Yuan Ze University; Chung-Li 32003 Taoyuan Taiwan Republic of China
| | - Hua-Wen Wen
- Department of Chemical Engineering and Materials Science; Yuan Ze University; Chung-Li 32003 Taoyuan Taiwan Republic of China
| | - Po-I Wu
- Department of Chemical Engineering and Materials Science; Yuan Ze University; Chung-Li 32003 Taoyuan Taiwan Republic of China
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66
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Ghosh Roy S, De P. Facile RAFT synthesis of side-chain amino acids containing pH-responsive hyperbranched and star architectures. Polym Chem 2014. [DOI: 10.1039/c4py00766b] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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67
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Tappertzhofen K, Bednarczyk M, Koynov K, Bros M, Grabbe S, Zentel R. Toward Anticancer Immunotherapeutics: Well-Defined Polymer-Antibody Conjugates for Selective Dendritic Cell Targeting. Macromol Biosci 2014; 14:1444-57. [DOI: 10.1002/mabi.201400190] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 05/22/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Kristof Tappertzhofen
- Institute of Organic Chemistry; Johannes Gutenberg-University; Duesbergweg 10-14 55128 Mainz Germany
| | - Monika Bednarczyk
- Department of Dermatology; University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Matthias Bros
- Department of Dermatology; University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
| | - Stephan Grabbe
- Department of Dermatology; University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
- Research Center Immunology (FZI); University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
| | - Rudolf Zentel
- Institute of Organic Chemistry; Johannes Gutenberg-University; Duesbergweg 10-14 55128 Mainz Germany
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68
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Ren T, Mao Z, Moya SE, Gao C. Immobilization of Enzymes on 2-Hydroxyethyl Methacrylate and Glycidyl Methacrylate Copolymer Brushes. Chem Asian J 2014; 9:2132-9. [DOI: 10.1002/asia.201402150] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 04/01/2014] [Indexed: 01/24/2023]
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69
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Matyjaszewski K, Tsarevsky NV. Macromolecular engineering by atom transfer radical polymerization. J Am Chem Soc 2014; 136:6513-33. [PMID: 24758377 DOI: 10.1021/ja408069v] [Citation(s) in RCA: 831] [Impact Index Per Article: 83.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This Perspective presents recent advances in macromolecular engineering enabled by ATRP. They include the fundamental mechanistic and synthetic features of ATRP with emphasis on various catalytic/initiation systems that use parts-per-million concentrations of Cu catalysts and can be run in environmentally friendly media, e.g., water. The roles of the major components of ATRP--monomers, initiators, catalysts, and various additives--are explained, and their reactivity and structure are correlated. The effects of media and external stimuli on polymerization rates and control are presented. Some examples of precisely controlled elements of macromolecular architecture, such as chain uniformity, composition, topology, and functionality, are discussed. Syntheses of polymers with complex architecture, various hybrids, and bioconjugates are illustrated. Examples of current and forthcoming applications of ATRP are covered. Future challenges and perspectives for macromolecular engineering by ATRP are discussed.
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Affiliation(s)
- Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University , 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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70
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Abstract
The remarkable diversity of the self-assembly behavior of PEG-peptides is reviewed, including self-assemblies formed by PEG-peptides with β-sheet and α-helical (coiled-coil) peptide sequences. The modes of self-assembly in solution and in the solid state are discussed. Additionally, applications in bionanotechnology and synthetic materials science are summarized.
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Affiliation(s)
- Ian W Hamley
- Department of Chemistry, University of Reading , Whiteknights, Reading RG6 6AD, United Kingdom
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71
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Paira TK, Saha A, Banerjee S, Das T, Das P, Jana NR, Mandal TK. Fluorescent amphiphilic PEG-peptide-PEG triblock conjugate micelles for cell imaging. Macromol Biosci 2014; 14:929-35. [PMID: 24687698 DOI: 10.1002/mabi.201400083] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Indexed: 12/18/2022]
Abstract
A fluorescent amphiphilic poly(ethylene glycol)-peptide-fluorophore-peptide-poly(ethylene glycol) (PEG-Pep-F-Pep-PEG) triblock conjugate with a hydrophobic fluorophore moiety at the centre of the chain is synthesized by "grafting to" technique based on Schiff-base coupling chemistry. The conjugate is characterized by nuclear magnetic resonance (NMR), circular dichroism (CD), and fluorescence spectroscopy techniques. The aqueous solution of the triblock conjugate emits blue light and exhibits a fluorescence emission band at 430 nm. The amphiphilic conjugate molecules undergo self-assembly into micelles (D ≈ 15-20 nm) in aqueous solution as confirmed from transmission electron microscopy (TEM) and dynamic light scattering (DLS). The critical aggregation concentration is determined by pyrene fluorescence assay and is found to be 0.051 mg mL(-1) . The highly stable and low toxic fluorescent PEG-Pep-F-Pep-PEG conjugate micelles are used for imaging of HeLa cells.
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Affiliation(s)
- Tapas K Paira
- Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700 032, India
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72
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Roy SG, Haldar U, De P. Remarkable swelling capability of amino acid based cross-linked polymer networks in organic and aqueous medium. ACS APPLIED MATERIALS & INTERFACES 2014; 6:4233-4241. [PMID: 24556036 DOI: 10.1021/am405932f] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work reports design and synthesis of side chain amino acid based cross-linked polymeric gels, able to switch over from organogel to hydrogel by a simple deprotection reaction and showing superabsorbancy in water. Amino acid based methacrylate monomers, tert-butoxycarbonyl (Boc)-l/d-alanine methacryloyloxyethyl ester (Boc-l/d-Ala-HEMA), have been polymerized in the presence of a cross-linker via conventional free radical polymerization (FRP) and the reversible addition-fragmentation chain transfer (RAFT) technique for the synthesis of cross-linked polymer gels. The swelling behaviors of these organogels are investigated in organic solvents, and they behave as superabsorbent materials for organic solvents such as dichloromethane, acetone, tetrahydrofuran, etc. Swollen cross-linked polymer gels release the absorbed organic solvent rapidly. After Boc group deprotection from the pendant alanine moiety, the organogels transform to the hydrogels due to the formation of side chain ammonium (-NH3(+)) groups, and these hydrogels showed a significantly high swelling ratio (∼560 times than their dry volumes) in water. The morphology of organogels and hydrogels is studied by field emission scanning electron microscopy (FE-SEM). Amino acid based cross-linked gels could find applications as absorbents for oil spilled on water as well as superabsorbent hydrogels.
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Affiliation(s)
- Saswati Ghosh Roy
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata , PO: BCKV, Mohanpur, 741252, Nadia, West Bengal, India
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73
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Thompson MP, Randolph LM, James CR, Davalos AN, Hahn ME, Gianneschi NC. Labelling Polymers and Micellar Nanoparticles via Initiation, Propagation and Termination with ROMP. Polym Chem 2014; 5:1954-1964. [PMID: 24855496 PMCID: PMC4023353 DOI: 10.1039/c3py01338c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this paper we compare and contrast three approaches for labelling polymers with functional groups via ring-opening metathesis polymerization (ROMP). We explored the incorporation of functionality via initiation, termination and propagation employing an array of novel initiators, termination agents and monomers. The goal was to allow the generation of selectively labelled and well-defined polymers that would in turn lead to the formation of labelled nanomaterials. Norbornene analogues, prepared as functionalized monomers for ROMP, included fluorescent dyes (rhodamine, fluorescein, EDANS, and coumarin), quenchers (DABCYL), conjugatable moieties (NHS esters, pentafluorophenyl esters), and protected amines. In addition, a set of symmetrical olefins for terminally labelling polymers, and for the generation of initiators in situ is described.
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Affiliation(s)
- Matthew P. Thompson
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, U.S.A.. Fax: XX XXXX XXXX; Tel: XX XXXX XXXX
| | - Lyndsay M. Randolph
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, U.S.A.. Fax: XX XXXX XXXX; Tel: XX XXXX XXXX
| | - Carrie R. James
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, U.S.A.. Fax: XX XXXX XXXX; Tel: XX XXXX XXXX
| | - Ashley N. Davalos
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, U.S.A.. Fax: XX XXXX XXXX; Tel: XX XXXX XXXX
| | - Michael E. Hahn
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, U.S.A.. Fax: XX XXXX XXXX; Tel: XX XXXX XXXX
| | - Nathan C. Gianneschi
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, U.S.A.. Fax: XX XXXX XXXX; Tel: XX XXXX XXXX
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74
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Ding X, Janjanam J, Tiwari A, Thompson M, Heiden PA. Peptide-directed self-assembly of functionalized polymeric nanoparticles part I: design and self-assembly of peptide-copolymer conjugates into nanoparticle fibers and 3D scaffolds. Macromol Biosci 2014; 14:853-71. [PMID: 24610743 DOI: 10.1002/mabi.201300569] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 01/26/2014] [Indexed: 11/05/2022]
Abstract
A robust self-assembly of nanoparticles into fibers and 3D scaffolds is designed and fabricated by functionalizing a RAFT-polymerized amphiphilic triblock copolymer with designer ionic complementary peptides so that the assembled core-shell polymeric nanoparticles are directed by peptide assembly into continuous "nanoparticle fibers," ultimately leading to 3D fiber scaffolds. The assembled nanostructure is confirmed by FESEM and optical microscopy. The assembly is not hindered when a protein (insulin) is incorporated within the nanoparticles as an active ingredient. MTS cytotoxicity tests on SW-620 cell lines show that the peptides, copolymers, and peptide-copolymer conjugates are biocompatible. The methodology of self-assembled nanoparticle fibers and 3D scaffolds is intended to combine the advantages of a flexible hydrogel scaffold with the versatility of controlled release nanoparticles to offer unprecedented ability to incorporate desired drug(s) within a self-assembled scaffold system with individual control over the release of each drug.
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Affiliation(s)
- Xiaochu Ding
- Department of Chemistry, Michigan Technological University, Houghton, MI, 49931, USA.
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75
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Fan L, Chen H, Wei S, Cao F. Protein–polymer hybrid oil–absorbing gel using hair keratin as macroinitiator by SET-LRP. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2013.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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76
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Cao J, Liu S, Chen Y, Shi L, Zhang Z. Synthesis of end-functionalized boronic acid containing copolymers and their bioconjugates with rod-like viruses for multiple responsive hydrogels. Polym Chem 2014. [DOI: 10.1039/c4py00508b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
End-functionalized boronic acid containing copolymers are grafted to a rod-like M13 virus. The resultant virus polymer can reversibly form hydrogels, which can be regulated by temperature, pH and glucose.
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Affiliation(s)
- Jun Cao
- Key Laboratory of Functional Polymer Materials of Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
| | - Shuaiyu Liu
- Key Laboratory of Functional Polymer Materials of Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
| | - Yingjun Chen
- Key Laboratory of Functional Polymer Materials of Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
| | - Zhenkun Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
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77
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Audebeau E, Oikonomou EK, Norvez S, Iliopoulos I. One-pot synthesis and gelation by borax of glycopolymers in water. Polym Chem 2014. [DOI: 10.1039/c3py01266b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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78
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Dan K, Ghosh S. Stimuli responsive triblock copolymers by chain-growth polymerization from telechelic macroinitiators prepared via a step-growth polymerization. Polym Chem 2014. [DOI: 10.1039/c4py00078a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The synthesis of stimuli-responsive ABA tri-block copolymers using a step-growth polmerization followed by a chain-growth polymerization.
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Affiliation(s)
- Krishna Dan
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700032, India
| | - Suhrit Ghosh
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700032, India
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79
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Roy SG, Bauri K, Pal S, De P. Tryptophan containing covalently cross-linked polymeric gels with fluorescence and pH-induced reversible sol–gel transition properties. Polym Chem 2014. [DOI: 10.1039/c3py01691a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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80
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Kumar S, Acharya R, Chatterji U, De P. Controlled synthesis of β-sheet polymers based on side-chain amyloidogenic short peptide segments via RAFT polymerization. Polym Chem 2014. [DOI: 10.1039/c4py00620h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A strategy was developed for the controlled synthesis of side-chain peptide containing pH-responsive polymers with an antiparallel β-sheet motif, which was independent of solvent polarity, PEGylation of homopolymers, the block length of PEG or peptidic segments in the block copolymer and temperature.
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Affiliation(s)
- Sonu Kumar
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Nadia, India
| | | | - Urmi Chatterji
- Department of Zoology
- University of Calcutta
- Kolkata – 700 019, India
| | - Priyadarsi De
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Nadia, India
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81
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Espeel P, Du Prez FE. One-Pot Double Modification of Polymers Based on Thiolactone Chemistry. MULTI-COMPONENT AND SEQUENTIAL REACTIONS IN POLYMER SYNTHESIS 2014. [DOI: 10.1007/12_2014_304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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82
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Qi Y, Chilkoti A. Growing polymers from peptides and proteins: a biomedical perspective. Polym Chem 2014. [DOI: 10.1039/c3py01089a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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83
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Delplace V, Harrisson S, Tardy A, Gigmes D, Guillaneuf Y, Nicolas J. Nitroxide-mediated radical ring-opening copolymerization: chain-end investigation and block copolymer synthesis. Macromol Rapid Commun 2013; 35:484-91. [PMID: 24338914 DOI: 10.1002/marc.201300809] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 11/10/2013] [Indexed: 11/10/2022]
Abstract
Well-defined, degradable copolymers are successfully prepared by nitroxide-mediated radical ring opening polymerization (NMrROP) of oligo(ethylene glycol) methyl ether methacrylate (OEGMA) or methyl methacrylate (MMA), a small amount of acrylonitrile (AN) and cyclic ketene acetals (CKAs) of different structures. Phosphorous nuclear magnetic resonance allows in-depth chain-end characterization and gives crucial insights into the nature of the copoly-mer terminal sequences and the living chain fractions. By using a small library of P(OEGMA-co-AN-co-CKA) and P(MMA-co-AN-co-CKA) as macroinitiators, chain extensions with styrene are performed to furnish (amphiphilic) block copolymers comprising a degradable segment.
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Affiliation(s)
- Vianney Delplace
- Institut Galien Paris-Sud, UMR CNRS 8612, Univ Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, F-92296, Châtenay-Malabry cedex, France
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84
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Kumar S, Acharya R, Chatterji U, De P. Side-chain amino-acid-based pH-responsive self-assembled block copolymers for drug delivery and gene transfer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15375-15385. [PMID: 24274731 DOI: 10.1021/la403819g] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Developing safe and effective nanocarriers for multitype of delivery system is advantageous for several kinds of successful biomedicinal therapy with the same carrier. In the present study, we have designed amino acid biomolecules derived hybrid block copolymers which can act as a promising vehicle for both drug delivery and gene transfer. Two representative natural chiral amino acid-containing (l-phenylalanine and l-alanine) vinyl monomers were polymerized via reversible addition-fragmentation chain transfer (RAFT) process in the presence of monomethoxy poly(ethylene glycol) based macro-chain transfer agents (mPEGn-CTA) for the synthesis of well-defined side-chain amino-acid-based amphiphilic block copolymers, monomethoxy poly(ethylene glycol)-b-poly(Boc-amino acid methacryloyloxyethyl ester) (mPEGn-b-P(Boc-AA-EMA)). The self-assembled micellar aggregation of these amphiphilic block copolymers were studied by fluorescence spectroscopy, atomic force microscopy (AFM) and scanning electron microscopy (SEM). Potential applications of these hybrid polymers as drug carrier have been demonstrated in vitro by encapsulation of nile red dye or doxorubicin drug into the core of the micellar nanoaggregates. Deprotection of side-chain Boc- groups in the amphiphilic block copolymers subsequently transformed them into double hydrophilic pH-responsive cationic block copolymers having primary amino groups in the side-chain terminal. The DNA binding ability of these cationic block copolymers were further investigated by using agarose gel retardation assay and AFM. The in vitro cytotoxicity assay demonstrated their biocompatible nature and these polymers can serve as "smart" materials for promising bioapplications.
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Affiliation(s)
- Sonu Kumar
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research - Kolkata , BCKV Campus Main Office, Mohanpur 741252, Nadia, West Bengal, India
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85
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Castelletto V, Gouveia RJ, Connon CJ, Hamley IW. Self-assembly and bioactivity of a polymer/peptide conjugate containing the RGD cell adhesion motif and PEG. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.02.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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86
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Atom transfer radical polymerization on the interior of the P22 capsid and incorporation of photocatalytic monomer crosslinks. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.06.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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87
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88
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Delplace V, Tardy A, Harrisson S, Mura S, Gigmes D, Guillaneuf Y, Nicolas J. Degradable and Comb-Like PEG-Based Copolymers by Nitroxide-Mediated Radical Ring-Opening Polymerization. Biomacromolecules 2013; 14:3769-79. [DOI: 10.1021/bm401157g] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Vianney Delplace
- Institut
Galien Paris-Sud, UMR CNRS 8612, University Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, F-92296 Châtenay-Malabry Cedex, France
| | - Antoine Tardy
- Aix-Marseille Université, Institut de Chimie Radicalaire, UMR CNRS 7273, Avenue
Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Simon Harrisson
- Institut
Galien Paris-Sud, UMR CNRS 8612, University Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, F-92296 Châtenay-Malabry Cedex, France
| | - Simona Mura
- Institut
Galien Paris-Sud, UMR CNRS 8612, University Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, F-92296 Châtenay-Malabry Cedex, France
| | - Didier Gigmes
- Aix-Marseille Université, Institut de Chimie Radicalaire, UMR CNRS 7273, Avenue
Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Yohann Guillaneuf
- Aix-Marseille Université, Institut de Chimie Radicalaire, UMR CNRS 7273, Avenue
Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Julien Nicolas
- Institut
Galien Paris-Sud, UMR CNRS 8612, University Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, F-92296 Châtenay-Malabry Cedex, France
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89
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Thomas CS, Xu L, Olsen BD. Effect of small molecule osmolytes on the self-assembly and functionality of globular protein-polymer diblock copolymers. Biomacromolecules 2013; 14:3064-72. [PMID: 23941572 DOI: 10.1021/bm400664t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Blending the small molecule osmolytes glycerol and trehalose with the model globular protein-polymer block copolymer mCherry-b-poly(N-isopropyl acrylamide) (mCherry-b-PNIPAM) is demonstrated to improve protein functionality in self-assembled nanostructures. The incorporation of either additive into block copolymers results in functionality retention in the solid state of 80 and 100% for PNIPAM volume fractions of 40 and 55%, respectively. This represents a large improvement over the 50-60% functionality observed in the absence of any additive. Furthermore, glycerol decreases the thermal stability of block copolymer films by 15-20 °C, while trehalose results in an improvement in the thermal stability by 15-20 °C. These results suggest that hydrogen bond replacement is responsible for the retention of protein function but suppression or enhancement of thermal motion based on the glass transition of the osmolyte primarily determines thermal stability. While both osmolytes are observed to have a disordering effect on the nanostructure morphology with increasing concentration, this effect is less pronounced in materials with a larger polymer volume fraction. Glycerol preferentially localizes in the protein domains and swells the nanostructures, inducing disordering or a change in morphology depending on the PNIPAM coil fraction. In contrast, trehalose is observed to macrophase separate from the block copolymer, which results in nanodomains becoming more disordered without changing significantly in size.
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Affiliation(s)
- Carla S Thomas
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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90
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Hasegawa U, van der Vlies AJ, Wandrey C, Hubbell JA. Preparation of well-defined ibuprofen prodrug micelles by RAFT polymerization. Biomacromolecules 2013; 14:3314-20. [PMID: 23937521 DOI: 10.1021/bm4009149] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) are widely used to treat acute pain, fever, and inflammation and are being explored in a new indication in cancer. Side effects associated with long-term use of NSAIDs such as gastrointestinal damage and elevated risk of stroke, however, can limit their use and exploration in new indications. Here we report a facile method to prepare well-defined amphiphilic diblock copolymer NSAID prodrugs by direct reversible addition-fragmentation transfer (RAFT) polymerization of the acrylamide derivative of ibuprofen (IBU), a widely used NSAID. The synthesis and self-assembling behavior of amphiphilic diblock copolymers (PEG-PIBU) having a hydrophilic poly(ethylene glycol) block and a hydrophobic IBU-bearing prodrug block were investigated. Release profiles of IBU from the micelles by hydrolysis were evaluated. Furthermore, the antiproliferative action of the IBU-containing micelles in human cervical carcinoma (HeLa) and murine melanoma (B16-F10) cells was assessed.
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Affiliation(s)
- Urara Hasegawa
- Institute of Bioengineering and Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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91
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Roth PJ, Theato P. Thiol–Thiosulfonate Chemistry in Polymer Science: Simple Functionalization of Polymers via Disulfide Linkages. THIOL‐X CHEMISTRIES IN POLYMER AND MATERIALS SCIENCE 2013. [DOI: 10.1039/9781849736961-00076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Herein we highlight the reaction of thiols with thiosulfonates yielding asymmetric disulfides. The chapter begins with an overview of the synthesis and reactivity of functional thiosulfonates and is followed by a review of polymeric thiosulfonates. We then emphasize the novel use of thiosulfonates as trapping/functionalization agents for macromolecular thiols obtained from parent (co)polymers prepared by reversible addition‐fragmentation chain transfer (RAFT) radical polymerization. We also note how such facile disulfide‐forming chemistries can be readily employed simultaneously with other highly efficient coupling chemistries with an emphasis on the concurrent reaction of activated esters with amines in the presence of thiosulfonates. Finally, we discuss the use of methyl disulfide (SSMe) functional/end‐modified (co)polymers as reagents for the formation of polymeric self‐assembled monolayers (polymer brushes) on metal surfaces such as nanoparticles and quantum dots.
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Affiliation(s)
- Peter J. Roth
- Centre for Advanced Macromolecular Design (CAMD) School of Chemical Engineering, University of New South Wales, UNSW Sydney, NSW 2052 Australia
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry University of Hamburg, Bundesstrasse 45, D‐20146 Hamburg Germany ‐hamburg.de
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92
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Dan K, Ghosh S. One-Pot Synthesis of an Acid-Labile Amphiphilic Triblock Copolymer and its pH-Responsive Vesicular Assembly. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302722] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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93
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Dan K, Ghosh S. One-Pot Synthesis of an Acid-Labile Amphiphilic Triblock Copolymer and its pH-Responsive Vesicular Assembly. Angew Chem Int Ed Engl 2013; 52:7300-5. [DOI: 10.1002/anie.201302722] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Indexed: 12/27/2022]
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94
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Polypeptoids by Living Ring-Opening Polymerization of N-Substituted N-Carboxyanhydrides from Solid Supports. Macromol Rapid Commun 2013; 34:997-1001. [DOI: 10.1002/marc.201300269] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 04/03/2013] [Indexed: 12/21/2022]
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95
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Nguyen NH, Leng X, Sun HJ, Percec V. Single-electron transfer-living radical polymerization of oligo(ethylene oxide) methyl ether methacrylate in the absence and presence of air. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26718] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Nga H. Nguyen
- Roy & Diana Vagelos Laboratories; Department of Chemistry; University of Pennsylvania; Philadelphia Pennsylvania 19104-6323
| | - Xuefei Leng
- Roy & Diana Vagelos Laboratories; Department of Chemistry; University of Pennsylvania; Philadelphia Pennsylvania 19104-6323
| | - Hao-Jan Sun
- Roy & Diana Vagelos Laboratories; Department of Chemistry; University of Pennsylvania; Philadelphia Pennsylvania 19104-6323
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories; Department of Chemistry; University of Pennsylvania; Philadelphia Pennsylvania 19104-6323
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96
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Luxenhofer R, Fetsch C, Grossmann A. Polypeptoids: A perfect match for molecular definition and macromolecular engineering? ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26687] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Robert Luxenhofer
- Functional Polymer Materials; Chair of Chemical Technology of Materials Synthesis; Department of Chemistry and Pharmacy, Julius-Maximilian, University of Würzburg; 97070 Würzburg Germany
| | - Corinna Fetsch
- Functional Polymer Materials; Chair of Chemical Technology of Materials Synthesis; Department of Chemistry and Pharmacy, Julius-Maximilian, University of Würzburg; 97070 Würzburg Germany
| | - Arlett Grossmann
- Professur für Makromolekulare Chemie; Department Chemie; Technische Universität Dresden; 01062 Dresden Germany
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97
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Stals PJM, Li Y, Burdyńska J, Nicolaÿ R, Nese A, Palmans ARA, Meijer EW, Matyjaszewski K, Sheiko SS. How far can we push polymer architectures? J Am Chem Soc 2013; 135:11421-4. [PMID: 23465051 DOI: 10.1021/ja400890v] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We here report the synthesis and characterization of a complex polymeric architecture based on a block copolymer with a cylindrical brush block and a single-chain polymeric nanoparticle block folded due to strong intramolecular hydrogen-bonds. The self-assembly of these constructs on mica surfaces was studied with atomic force microscopy, corroborating the distinct presence of block copolymer architectures.
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Affiliation(s)
- Patrick J M Stals
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
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98
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Bauri K, Roy SG, Pant S, De P. Controlled synthesis of amino acid-based pH-responsive chiral polymers and self-assembly of their block copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:2764-74. [PMID: 23346856 DOI: 10.1021/la304918s] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Leucine/isoleucine side chain polymers are of interest due to their hydrophobicity and reported role in the formation of α-helical structures. The synthesis and reversible addition-fragmentation chain transfer (RAFT) polymerization of amino acid-based chiral monomers, namely Boc-L-leucine methacryloyloxyethyl ester (Boc-L-Leu-HEMA, 1a), Boc-L-leucine acryloyloxyethyl ester (Boc-L-Leu-HEA, 1b), Boc-L-isoleucine methacryloyloxyethyl ester (Boc-L-Ile-HEMA, 1c), and Boc-L-isoleucine acryloyloxyethyl ester (Boc-L-Ile-HEA, 1d), are reported. The controlled nature of the polymerization of the said chiral monomers in N, N-dimethylformamide (DMF) at 70 °C is evident from the formation of narrow polydisperse polymers, the molecular weight controlled by the monomer/chain transfer agent (CTA) molar ratio and the linear relationship between molecular weight and monomer conversion. The resulting well-defined polymers were used as macro-CTAs to prepare corresponding diblock copolymers by RAFT polymerization of methyl (meth)acrylate monomers. Deprotection of Boc groups in the homopolymers and block copolymers under acidic conditions produced cationic, pH-responsive polymers with primary amine moieties at the side chains. The optical activity of the homopolymers and block copolymers were studied using circular dichroism (CD) spectroscopy and specific rotation measurements. The self-assembling nature of the block copolymers to produce highly ordered structures was illustrated through dynamic light scattering (DLS) and atomic force microscopy (AFM) studies. The side chain amine functionality instills pH-responsive behavior, which makes these cationic polymers attractive candidates for drug delivery applications, as well as for conjugation of biomolecules.
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Affiliation(s)
- Kamal Bauri
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research-Kolkata, PO: BCKV Campus Main Office, Mohanpur-741252 Nadia, West Bengal, India
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99
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Kadir MA, Lee C, Han HS, Kim BS, Ha EJ, Jeong J, Song JK, Lee SG, An SSA, Paik HJ. In situ formation of polymer–protein hybrid spherical aggregates from (nitrilotriacetic acid)-end-functionalized polystyrenes and His-tagged proteins. Polym Chem 2013. [DOI: 10.1039/c2py21077k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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100
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Ho HT, Levere ME, Pascual S, Montembault V, Casse N, Caruso A, Fontaine L. Thermoresponsive block copolymers containing reactive azlactone groups and their bioconjugation with lysozyme. Polym Chem 2013. [DOI: 10.1039/c2py20714a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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