1
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Navals P, Rangaswamy AMM, Kasyanchyk P, Berezovski MV, Keillor JW. Conformational Modulation of Tissue Transglutaminase via Active Site Thiol Alkylating Agents: Size Does Not Matter. Biomolecules 2024; 14:496. [PMID: 38672511 PMCID: PMC11048362 DOI: 10.3390/biom14040496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/02/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
TG2 is a unique member of the transglutaminase family as it undergoes a dramatic conformational change, allowing its mutually exclusive function as either a cross-linking enzyme or a G-protein. The enzyme's dysregulated activity has been implicated in a variety of pathologies (e.g., celiac disease, fibrosis, cancer), leading to the development of a wide range of inhibitors. Our group has primarily focused on the development of peptidomimetic targeted covalent inhibitors, the nature and size of which were thought to be important features to abolish TG2's conformational dynamism and ultimately inhibit both its activities. However, we recently demonstrated that the enzyme was unable to bind guanosine triphosphate (GTP) when catalytically inactivated by small molecule inhibitors. In this study, we designed a library of models targeting covalent inhibitors of progressively smaller sizes (15 to 4 atoms in length). We evaluated their ability to inactivate TG2 by measuring their respective kinetic parameters kinact and KI. Their impact on the enzyme's ability to bind GTP was then evaluated and subsequently correlated to the conformational state of the enzyme, as determined via native PAGE and capillary electrophoresis. All irreversible inhibitors evaluated herein locked TG2 in its open conformation and precluded GTP binding. Therefore, we conclude that steric bulk and structural complexity are not necessary factors to consider when designing TG2 inhibitors to abolish G-protein activity.
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Affiliation(s)
| | | | | | | | - Jeffrey W. Keillor
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada; (P.N.); (A.M.M.R.); (P.K.); (M.V.B.)
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2
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Vu TT, Jo SH, Kim SH, Kim BK, Park SH, Lim KT. Injectable and Multifunctional Hydrogels Based on Poly( N-acryloyl glycinamide) and Alginate Derivatives for Antitumor Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38470564 DOI: 10.1021/acsami.4c00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Chemotherapy is a conventional treatment that uses drugs to kill cancer cells; however, it may induce side effects and may be incompletely effective, leading to the risk of tumor recurrence. To address this issue, we developed novel injectable thermal/near-infrared (NIR)-responsive hydrogels to control drug release. The injectable hydrogel formulation was composed of biocompatible alginates, poly(N-acryloyl glycinamide) (PNAGA) copolymers with an upper critical solution temperature, and NIR-responsive cross-linkers containing coumarin groups, which were gelated through bioorthogonal inverse electron demand Diels-Alder reactions. The hydrogels exhibited quick gelation times (120-800 s) and high drug loading efficiencies (>90%). The hydrogels demonstrated a higher percentage of drug release at 37 °C than that at 25 °C due to the enhanced swelling behavior of temperature-responsive PNAGA moieties. Upon NIR irradiation, the hydrogels released most of the entrapped doxorubicin (DOX) (97%) owing to the cleavage of NIR-sensitive coumarin ester groups. The hydrogels displayed biocompatibility with normal cells, while induced antitumor activity toward cancer cells. DOX/hydrogels treated with NIR light inhibited tumor growth in nude mice bearing tumors. In addition, the injected hydrogels emitted red fluorescence upon excitation at a green wavelength, so that the drug delivery and hydrogel degradation in vivo could be tracked in the xenograft model.
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Affiliation(s)
- Trung Thang Vu
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, South Korea
- Major of Biomedical Engineering, Division of Smart Healthcare, College of Information Technology and Convergence, Pukyong National University, Busan 48513, South Korea
| | - Sung-Han Jo
- Major of Biomedical Engineering, Division of Smart Healthcare, College of Information Technology and Convergence, Pukyong National University, Busan 48513, South Korea
| | - Seon-Hwa Kim
- Major of Biomedical Engineering, Division of Smart Healthcare, College of Information Technology and Convergence, Pukyong National University, Busan 48513, South Korea
| | - Byeong Kook Kim
- Major of Biomedical Engineering, Division of Smart Healthcare, College of Information Technology and Convergence, Pukyong National University, Busan 48513, South Korea
| | - Sang-Hyug Park
- Major of Biomedical Engineering, Division of Smart Healthcare, College of Information Technology and Convergence, Pukyong National University, Busan 48513, South Korea
| | - Kwon Taek Lim
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, South Korea
- Institute of Display Semiconductor Technology, Pukyong National University, Busan 48513, South Korea
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3
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Bonda L, Müller J, Fischer L, Löwe M, Kedrov A, Schmidt S, Hartmann L. Facile Synthesis of Catechol-Containing Polyacrylamide Copolymers: Synergistic Effects of Amine, Amide and Catechol Residues in Mussel-Inspired Adhesives. Polymers (Basel) 2023; 15:3663. [PMID: 37765517 PMCID: PMC10535631 DOI: 10.3390/polym15183663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/27/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
The straightforward synthesis of polyamide-derived statistical copolymers with catechol, amine, amide and hydroxy residues via free radical polymerization is presented. In particular, catechol, amine and amide residues are present in natural mussel foot proteins, enabling strong underwater adhesion due to synergistic effects where cationic residues displace hydration and ion layers, followed by strong short-rang hydrogen bonding between the catechol or primary amides and SiO2 surfaces. The present study is aimed at investigating whether such synergistic effects also exist for statistical copolymer systems that lack the sequence-defined positioning of functional groups in mussel foot proteins. A series of copolymers is established and the adsorption in saline solutions on SiO2 is determined by quartz crystal microbalance measurements and ellipsometry. These studies confirm a synergy between cationic amine groups with catechol units and primary amide groups via an increased adsorptivity and increased polymer layer thicknesses. Therefore, the free radical polymerization of catechol, amine and amide monomers as shown here may lead to simplified mussel-inspired adhesives that can be prepared with the readily scalable methods required for large-scale applications.
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Affiliation(s)
- Lorand Bonda
- Institut für Organische und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany; (L.B.); (J.M.)
| | - Janita Müller
- Institut für Organische und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany; (L.B.); (J.M.)
| | - Lukas Fischer
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, Universitätsstr. 7, 45141 Essen, Germany;
| | - Maryna Löwe
- Synthetische Membransysteme, Institut für Biochemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany; (M.L.); (A.K.)
| | - Alexej Kedrov
- Synthetische Membransysteme, Institut für Biochemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany; (M.L.); (A.K.)
| | - Stephan Schmidt
- Institut für Organische und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany; (L.B.); (J.M.)
- Institut für Makromolekulare Chemie, Albert-Ludwigs-Universität Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
| | - Laura Hartmann
- Institut für Organische und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany; (L.B.); (J.M.)
- Institut für Makromolekulare Chemie, Albert-Ludwigs-Universität Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
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4
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Tian Y, Lai J, Li C, Sun J, Liu K, Zhao C, Zhang M. Poly( N-acryloyl glycinamide- co- N-acryloxysuccinimide) Nanoparticles: Tunable Thermo-Responsiveness and Improved Bio-Interfacial Adhesion for Cell Function Regulation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7867-7877. [PMID: 36740782 DOI: 10.1021/acsami.2c22267] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Poly(N-acryloyl glycinamide) (PNAGA) can form high-strength hydrogen bonds (H-bonds) through the dual amide motifs in the side chain, allowing the polymer to exhibit gelation behavior and an upper critical solution temperature (UCST) property. These features make PNAGA a candidate platform for biomedical devices. However, most applications focused on PNAGA hydrogels, while few focused on PNAGA nanoparticles. Improving the UCST tunability and bio-interfacial adhesion of the PNAGA nanoparticles may expand their applications in biomedical fields. To address the issues, we established a reactive H-bond-type P(NAGA-co-NAS) copolymer via reversible addition-fragmentation chain transfer polymerization of NAGA and N-acryloxysuccinimide (NAS) monomers. The UCST behaviors and the bio-interfacial adhesion toward the proteins and cells along with the potential application of the copolymer nanoparticles were investigated in detail. Taking advantage of the enhanced H-bonding and reactivity, the copolymer exhibited a tunable UCST in a broad temperature range, showing thermo-reversible transition between nanoparticles (PNPs) and soluble chains; the PNPs efficiently bonded proteins into nano-biohybrids while keeping the secondary structure of the protein, and more importantly, they also exhibited good adhesion ability to the cell membrane and significantly inhibited cell-specific propagation. These features suggest broad prospects for the P(NAGA-co-NAS) nanoparticles in the fields of biosensors, protein delivery, cell surface decoration, and cell-specific function regulation.
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Affiliation(s)
- Yueyi Tian
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin300192, China
| | - Jiahui Lai
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin300192, China
| | - Chen Li
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin300192, China
| | - Jialin Sun
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin300192, China
| | - Kang Liu
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, China
| | - Chuanzhuang Zhao
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo315211, China
| | - Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin300192, China
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5
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Masuko K, Kumano C, Sugawara R, Nakabayashi K, Mori H. Polymerization‐induced self‐assembly of amino‐acid‐based nano‐objects by reversible addition–fragmentation chain‐transfer dispersion polymerization. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Kazunori Masuko
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
| | - Chiharu Kumano
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
| | - Ryo Sugawara
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
| | | | - Hideharu Mori
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
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6
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Akiyama Y. Synthesis of Temperature-Responsive Polymers Containing Piperidine Carboxamide and N,N-diethylcarbamoly Piperidine Moiety via RAFT Polymerization. Macromol Rapid Commun 2021; 42:e2100208. [PMID: 34145666 DOI: 10.1002/marc.202100208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/09/2021] [Indexed: 02/06/2023]
Abstract
In this study, poly(N-acryloyl-nipecotamide) (PNANAm), poly(N-acryloyl-isonipecotamide) (PNAiNAm), and poly(N-acryloyl-N,N-diethylnipecotamide) (PNADNAm) are synthesized as novel temperature-responsive polymers using reversible addition-fragmentation chain-transfer polymerization. Aqueous solutions of these three polymers are examined via temperature-dependent optical transmittance measurements. The PNANAm sample with a hydrophilic terminal group shows an upper critical solution temperature (UCST) in phosphate-buffered saline (PBS) when its molecular weight (Mn ) is 7600 or higher, whereas PNANAm (Mn < 7600) is soluble. The UCST is influenced by molecular weight and the polymer concentration. In contrast, PNANAm sample with nonionic terminal group shows UCST, when Mn is below 7600, suggesting that the terminal nonionic group possibly increases UCST of PNANAm. The urea addition experiment suggests that the driving force for expression of UCST of PNANAm is the formation of inter-and intramolecular hydrogen bonds among the polymer chains. PNAiNAm is soluble in PBS but exhibits an UCST in an appropriate concentration of ammonium sulfate. In contrast, PNADNAm exhibits a lower critical solution temperature. Comparing the chemical structure of these polymers and their phase transition behaviors suggests that the carboxamide group position in the piperidine ring could determine the UCST expression. These results could help design temperature-responsive polymers with a desired the cloud point temperature.
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Affiliation(s)
- Yoshikatsu Akiyama
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo, 162-8666, Japan
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7
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Eckert T, Abetz V. Polymethacrylamide—An underrated and easily accessible upper critical solution temperature polymer: Green synthesis via photoiniferter reversible addition–fragmentation chain transfer polymerization and analysis of solution behavior in water/ethanol mixtures. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200566] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tilman Eckert
- Helmholtz‐Zentrum Geesthacht Institute of Polymer Research Geesthacht Germany
- Institute of Physical Chemistry University of Hamburg Hamburg Germany
| | - Volker Abetz
- Helmholtz‐Zentrum Geesthacht Institute of Polymer Research Geesthacht Germany
- Institute of Physical Chemistry University of Hamburg Hamburg Germany
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8
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Yamano T, Higashi N, Koga T. Unique Self-Assembly of Sequence-Controlled Amino Acid Derived Vinyl Polymer with Gradient Thermoresponsiveness along a Chain. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6550-6556. [PMID: 32479728 DOI: 10.1021/acs.langmuir.0c01036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A novel water-soluble amino acid derived vinyl polymer whose block sequence was designed to achieve a gradient thermoresponsiveness along a chain was accurately prepared through an ultrarapid reversible addition-fragmentation chain-transfer polymerization. The polymer exhibited unique temperature-regulated self-assembly in water, leading to multiple nanostructural transformations including disassembly-to-ordered and ordered-to-ordered transitions. The morphologies were drastically changed by heating the solution from 4 °C (soluble form) to 20 °C (spherical micelle) to 70 °C (vesicle). Moreover, such transitions exhibited hysteresis upon cooling, namely, from 70 °C (vesicle) to 20 °C (wormlike micelle) to 4 °C (soluble form). In this polymer system, the specific monomer sequence contributed to the self-assembly behavior. These findings provide significant insight into the design of new thermoresponsive nanomaterials with potential applications in biomedical chemistry.
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Affiliation(s)
- Tsukasa Yamano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Tomoyuki Koga
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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9
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Tran TN, Piogé S, Fontaine L, Pascual S. Hydrogen‐Bonding UCST‐Thermosensitive Nanogels by Direct Photo‐RAFT Polymerization‐Induced Self‐Assembly in Aqueous Dispersion. Macromol Rapid Commun 2020; 41:e2000203. [DOI: 10.1002/marc.202000203] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/19/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Thi Nga Tran
- Institut des Molécules et Matériaux du MansUMR 6283 CNRS–Le Mans Université Avenue Olivier Messiaen Le Mans Cedex 72085 France
| | - Sandie Piogé
- Institut des Molécules et Matériaux du MansUMR 6283 CNRS–Le Mans Université Avenue Olivier Messiaen Le Mans Cedex 72085 France
| | - Laurent Fontaine
- Institut des Molécules et Matériaux du MansUMR 6283 CNRS–Le Mans Université Avenue Olivier Messiaen Le Mans Cedex 72085 France
| | - Sagrario Pascual
- Institut des Molécules et Matériaux du MansUMR 6283 CNRS–Le Mans Université Avenue Olivier Messiaen Le Mans Cedex 72085 France
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10
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Koga T, Tomimori K, Higashi N. Transparent, High‐Strength, and Shape Memory Hydrogels from Thermo‐Responsive Amino Acid–Derived Vinyl Polymer Networks. Macromol Rapid Commun 2020; 41:e1900650. [DOI: 10.1002/marc.201900650] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/24/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Tomoyuki Koga
- Department of Molecular Chemistry & BiochemistryFaculty of Science & EngineeringDoshisha University Kyotanabe Kyoto 610‐0321 Japan
| | - Kotoha Tomimori
- Department of Molecular Chemistry & BiochemistryFaculty of Science & EngineeringDoshisha University Kyotanabe Kyoto 610‐0321 Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry & BiochemistryFaculty of Science & EngineeringDoshisha University Kyotanabe Kyoto 610‐0321 Japan
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11
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12
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Yamano T, Higashi N, Koga T. Precisely Synthesized Sequence-Controlled Amino Acid-Derived Vinyl Polymers: New Insights into Thermo-Responsive Polymer Design. Macromol Rapid Commun 2020; 41:e1900550. [PMID: 31894629 DOI: 10.1002/marc.201900550] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/06/2019] [Indexed: 01/01/2023]
Abstract
Thermo-responsive block copolymers are of great interest in biomedical and nanotechnological fields. These polymers achieve a versatile and complex responsiveness through a sophisticated and intricate combination of different thermo-responsive blocks. While their utility is clear, the fundamental design principles of such vinyl polymers are not yet thoroughly understood. Herein, a precise synthesis of sequence-controlled amino-acid-derived vinyl polymers and their unique thermal response in water are reported. Seven distinct block (random) copolymers that contain two kinds of amino acid blocks (poly(N-acryloyl alanine(A)- or glycine(G)-methyl ester)) with the same total chain length (degree of polymerization [DP] ≈30) and chemical composition (A/G ≈1), but with systematic variations in the block sequence and length, with an accuracy target of DP ± 1, are prepared. By specifying the primary structure, the thermal responses including transition temperature, thermo-sensitivity, and microenvironment in the dehydrated state can be finely tuned. These findings offer new directions in the design of structurally and functionally diverse thermo-responsive vinyl polymers.
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Affiliation(s)
- Tsukasa Yamano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto, 610-0321, Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto, 610-0321, Japan
| | - Tomoyuki Koga
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto, 610-0321, Japan
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13
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Zhao C, Dolmans L, Zhu XX. Thermoresponsive Behavior of Poly(acrylic acid-co-acrylonitrile) with a UCST. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00794] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chuanzhuang Zhao
- Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Louis Dolmans
- Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada
| | - X. X. Zhu
- Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada
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14
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Boustta M, Vert M. Poly[( N-acryloyl glycinamide)- co-( N-acryloyl l-alaninamide)] and Their Ability to Form Thermo-Responsive Hydrogels for Sustained Drug Delivery. Gels 2019; 5:E13. [PMID: 30832445 PMCID: PMC6473385 DOI: 10.3390/gels5010013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 02/21/2019] [Accepted: 02/27/2019] [Indexed: 02/01/2023] Open
Abstract
In the presence of water, poly(N-acryloyl glycinamide) homopolymers form highly swollen hydrogels that undergo fast and reversible gel↔sol transitions on heating. According to the literature, the transition temperature depends on concentration and average molecular weight, and in the case of copolymers, composition and hydrophilic/hydrophobic character. In this article, we wish to introduce new copolymers made by free radical polymerization of mixtures of N-acryloyl glycinamide and of its analog optically active N-acryloyl l-alaninamide in various proportions. The N-acryloyl l-alaninamide monomer was selected in attempts to introduce hydrophobicity and chirality in addition to thermo-responsiveness of the Upper Critical Solubilization Temperature-type. The characterization of the resulting copolymers included solubility in solvents, dynamic viscosity in solution, Fourrier Transform Infrared, Nuclear Magnetic Resonance, and Circular Dichroism spectra. Gel→sol transition temperatures were determined in phosphate buffer (pH = 7.4, isotonic to 320 mOsm/dm³). The release characteristics of hydrophilic Methylene Blue and hydrophobic Risperidone entrapped in poly(N-acryloyl glycinamide) and in two copolymers containing 50 and 75% of alanine-based units, respectively, were compared. It was found that increasing the content in N-acryloyl-alaninamide-based units increased the gel→sol transition temperature, decreased the gel consistency, and increased the release rate of Risperidone, but not that of Methylene Blue, with respect to homo poly(N-acryloyl glycinamide). The increase observed in the case of Risperidone appeared to be related to the hydrophobicity generated by alanine residues.
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Affiliation(s)
- Mahfoud Boustta
- Department of Artificial Biopolymer, Institute for Biomolecules Max Mousseron, UMR CNRS 5247, Faculty of Pharmacy, University of Montpellier-CNRS-ENSCM, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier CEDEX 5, France.
| | - Michel Vert
- Department of Artificial Biopolymer, Institute for Biomolecules Max Mousseron, UMR CNRS 5247, Faculty of Pharmacy, University of Montpellier-CNRS-ENSCM, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier CEDEX 5, France.
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15
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Xue X, Thiagarajan L, Dixon JE, Saunders BR, Shakesheff KM, Alexander C. Post-Modified Polypeptides with UCST-Type Behavior for Control of Cell Attachment in Physiological Conditions. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E95. [PMID: 29315257 PMCID: PMC5793593 DOI: 10.3390/ma11010095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 12/31/2017] [Accepted: 01/05/2018] [Indexed: 01/17/2023]
Abstract
Upper Critical Solution Temperature (UCST)-type thermally responsive polypeptides (TRPs) with phase transition temperatures around 37 °C in phosphate-buffered saline (PBS) buffer (pH 7.4, 100 mM) were prepared from poly(l-ornithine) hydrobromide and coated on non-tissue culture-treated plastic plates (nTCP). Cell adhesion was observed at temperatures above the phase transition temperature of the coating polymer (39 °C), while cell release was triggered when the culture temperature was switched to 37 °C. Approximately 65% of the attached cells were released from the surface within 6 h after changing the temperature, and more than 96% of the released cells were viable. Water contact angle measurements performed at 39 and 37 °C demonstrated that the surface hydrophobicity of the new TRP coatings changed in response to applied temperature. The cell attachment varied with the presence of serum in the media, suggesting that the TRP coatings mediated cell attachment and release as the underlying polymer surface changed conformation and consequently the display of adsorbed protein. These new TRP coatings provide an additional means to mediate cell attachment for application in cell-based tissue regeneration and therapies.
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Affiliation(s)
- Xuan Xue
- School of Pharmacy, the University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Lalitha Thiagarajan
- School of Pharmacy, the University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - James E Dixon
- School of Pharmacy, the University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Brian R Saunders
- School of Materials, the University of Manchester, Manchester M13 9PL, UK.
| | - Kevin M Shakesheff
- School of Pharmacy, the University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Cameron Alexander
- School of Pharmacy, the University of Nottingham, University Park, Nottingham NG7 2RD, UK.
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16
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Xu Z, Liu W. Poly(N-acryloyl glycinamide): a fascinating polymer that exhibits a range of properties from UCST to high-strength hydrogels. Chem Commun (Camb) 2018; 54:10540-10553. [DOI: 10.1039/c8cc04614j] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This feature article introduces the diverse intriguing properties of poly(N-acryloyl glycinamide) aqueous systems spanning from low to high concentrations.
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Affiliation(s)
- Ziyang Xu
- School of Materials Science and Engineering
- Tianjin Key Laboratory of Composite and Functional Materials
- Tianjin University
- Tianjin 300350
- China
| | - Wenguang Liu
- School of Materials Science and Engineering
- Tianjin Key Laboratory of Composite and Functional Materials
- Tianjin University
- Tianjin 300350
- China
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17
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Umapathi R, Reddy PM, Rani A, Venkatesu P. Influence of additives on thermoresponsive polymers in aqueous media: a case study of poly(N-isopropylacrylamide). Phys Chem Chem Phys 2018; 20:9717-9744. [DOI: 10.1039/c7cp08172c] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Thermoresponsive polymers (TRPs) in different solvent media have been studied over a long period and are important from both scientific and technical points of view.
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Affiliation(s)
| | - P. Madhusudhana Reddy
- Department of Chemistry
- University of Delhi
- Delhi-110 007
- India
- Department of Chemical Engineering
| | - Anjeeta Rani
- Department of Chemistry
- University of Delhi
- Delhi-110 007
- India
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18
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Methyl matters: An autonomic rapid self-healing supramolecular poly(N-methacryloyl glycinamide) hydrogel. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.08.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Guo H, Mussault C, Marcellan A, Hourdet D, Sanson N. Hydrogels with Dual Thermoresponsive Mechanical Performance. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700287] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/06/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Hui Guo
- Soft Matter Sciences and Engineering; ESPCI Paris; PSL Research University; CNRS UMR 7615; 10 rue Vauquelin F-75231 Paris cedex 05 France
- UPMC - University of Paris VI; Sorbonne Universités; 10 rue Vauquelin F-75231 Paris cedex 05 France
| | - Cécile Mussault
- Soft Matter Sciences and Engineering; ESPCI Paris; PSL Research University; CNRS UMR 7615; 10 rue Vauquelin F-75231 Paris cedex 05 France
- UPMC - University of Paris VI; Sorbonne Universités; 10 rue Vauquelin F-75231 Paris cedex 05 France
| | - Alba Marcellan
- Soft Matter Sciences and Engineering; ESPCI Paris; PSL Research University; CNRS UMR 7615; 10 rue Vauquelin F-75231 Paris cedex 05 France
- UPMC - University of Paris VI; Sorbonne Universités; 10 rue Vauquelin F-75231 Paris cedex 05 France
| | - Dominique Hourdet
- Soft Matter Sciences and Engineering; ESPCI Paris; PSL Research University; CNRS UMR 7615; 10 rue Vauquelin F-75231 Paris cedex 05 France
- UPMC - University of Paris VI; Sorbonne Universités; 10 rue Vauquelin F-75231 Paris cedex 05 France
| | - Nicolas Sanson
- Soft Matter Sciences and Engineering; ESPCI Paris; PSL Research University; CNRS UMR 7615; 10 rue Vauquelin F-75231 Paris cedex 05 France
- UPMC - University of Paris VI; Sorbonne Universités; 10 rue Vauquelin F-75231 Paris cedex 05 France
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20
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Xiang C, Wan H, Zhu M, Chen Y, Peng J, Zhou G. Dipicolylamine Functionalized Polyfluorene Based Gel with Lower Critical Solution Temperature: Preparation, Characterization, and Application. ACS APPLIED MATERIALS & INTERFACES 2017; 9:8872-8879. [PMID: 28229598 DOI: 10.1021/acsami.7b00600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A thermoresponsive fluorescent polymer gel with lower critical solution temperature (LCST) phase transition has been prepared by cooperating conjugated fluorene homopolymer poly(2,7-(9,9-di(8-di(2-picolyl)aminooctyl))fluorene) (PPAOF) and small organic dye sulforhodamine B (SRB) or its sodium salt (SRB-Na). The sol-gel phase transition originates from the electrostatic interactions between the protonated pyridyl/amino groups in PPAOF and the sulfonic groups in the organic dye molecules, as revealed by FTIR, variable-temperature 1H NMR spectroscopies, and cyclic voltammetry measurements. Consequently, the LCST value can be finely controlled by simply tuning the component concentrations. Moreover, due to the inefficient energy transfer, the resulting fluorescent polymer gel exhibits two independent emission bands at 440 and 577 nm, assigned to the characteristic emissions from fluorene homopolymer and organic dye, respectively. Furthermore, this fluorescent polymer gel exhibits a reversible electrofluorochromic (EFC) property with high fluorescence contrast when it is assembled in a single-layer supporting electrolyte-free EFC device. Most interestingly, different fluorescence colors can be achieved from the two electrodes of the device. Our findings may present a new way to design conjugated polymer based LCST gels and EFC materials.
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Affiliation(s)
- Chunlan Xiang
- Lab of Advanced Materials & Department of Macromolecular Science, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University , Shanghai 200438, P. R. China
| | - Hao Wan
- Lab of Advanced Materials & Department of Macromolecular Science, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University , Shanghai 200438, P. R. China
| | - Mingjing Zhu
- Lab of Advanced Materials & Department of Macromolecular Science, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University , Shanghai 200438, P. R. China
| | - Yijing Chen
- Lab of Advanced Materials & Department of Macromolecular Science, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University , Shanghai 200438, P. R. China
| | - Juan Peng
- Lab of Advanced Materials & Department of Macromolecular Science, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University , Shanghai 200438, P. R. China
| | - Gang Zhou
- Lab of Advanced Materials & Department of Macromolecular Science, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University , Shanghai 200438, P. R. China
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21
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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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22
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Parmar IA, Shedge AS, Badiger MV, Wadgaonkar PP, Lele AK. Thermo-reversible sol–gel transition of aqueous solutions of patchy polymers. RSC Adv 2017. [DOI: 10.1039/c6ra27030a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aqueous solutions of an amphiphilic thermoreversible patchy polymer show abrupt gelation upon cooling by the combined effect of percolation and transition from intra to intermolecular hydrophobic associations.
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Affiliation(s)
- Indravadan A. Parmar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Aarti S. Shedge
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Manohar V. Badiger
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Prakash P. Wadgaonkar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Ashish K. Lele
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
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23
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Zhang H, Guo S, Fan W, Zhao Y. Ultrasensitive pH-Induced Water Solubility Switch Using UCST Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02522] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hu Zhang
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
| | - Shengwei Guo
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
- School of Material Science & Engineering, Beifang University of Nationalities, Yinchuan, China 750021
| | - Weizheng Fan
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
| | - Yue Zhao
- Département
de chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
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24
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Mäkinen L, Varadharajan D, Tenhu H, Hietala S. Triple Hydrophilic UCST–LCST Block Copolymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02543] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Lauri Mäkinen
- Laboratory of Polymer Chemistry,
Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki FIN-00014, Finland
| | - Divya Varadharajan
- Laboratory of Polymer Chemistry,
Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki FIN-00014, Finland
| | - Heikki Tenhu
- Laboratory of Polymer Chemistry,
Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki FIN-00014, Finland
| | - Sami Hietala
- Laboratory of Polymer Chemistry,
Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki FIN-00014, Finland
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25
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Buskohl PR, Kramb RC, Vaia RA. Synchronicity in Composite Hydrogels: Belousov–Zhabotinsky (BZ) Active Nodes in Gelatin. J Phys Chem B 2015; 119:3595-602. [DOI: 10.1021/jp512829h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Philip R. Buskohl
- AFRL/RX Materials & Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, United States
- UES, Inc., Dayton, Ohio 45432, United States
| | - Ryan C. Kramb
- AFRL/RX Materials & Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, United States
- UES, Inc., Dayton, Ohio 45432, United States
| | - Richard A. Vaia
- AFRL/RX Materials & Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, United States
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26
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Zhang H, Tong X, Zhao Y. Diverse thermoresponsive behaviors of uncharged UCST block copolymer micelles in physiological medium. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:11433-11441. [PMID: 25141758 DOI: 10.1021/la5026334] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Three amphiphilic diblock copolymers, representative of three types of block copolymer (BCP) design, were synthesized using reversible addition-fragmentation chain-transfer (RAFT) polymerization. All of them have a same uncharged block of a random copolymer of commercially available acrylamide and acrylonitrile, P(AAm-co-AN), and exhibit a composition-tunable upper critical solution temperature (UCST). We show that by coupling a common P(AAm-co-AN) block with either hydrophobic polystyrene (PS) or hydrophilic poly(dimethylacrylamide) (PDMA) or the lower critical solution temperature (LCST) polymer of poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA), the BCP micelles formed in water or in phosphate buffered saline (PBS) can display diverse and UCST-dictated changes in response to temperature variations, such as the reversible dispersion-aggregation of micelles, dissolution-formation of micelles, and reversal of micelle core and corona. The results point out that P(AAm-co-AN) is a robust UCST polymer that can be introduced into controlled polymer architectures producible by RAFT, the same way as using the extensively studied LCST counterparts like poly(N-isopropylacrylamide) (PNIPAM). This ability should make the door wide open to exploring new thermosensitive polymers based on the thermosensitivity opposite to the LCST.
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Affiliation(s)
- Hu Zhang
- Département de Chimie, Université de Sherbrooke , Sherbrooke, Quebec Canada J1K 2R1
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27
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Postpolymerization synthesis of (bis)amide (co)polymers: Thermoresponsive behavior and self-association. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.07.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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28
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Boustta M, Colombo PE, Lenglet S, Poujol S, Vert M. Versatile UCST-based thermoresponsive hydrogels for loco-regional sustained drug delivery. J Control Release 2013; 174:1-6. [PMID: 24211433 DOI: 10.1016/j.jconrel.2013.10.040] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 10/30/2013] [Accepted: 10/30/2013] [Indexed: 11/18/2022]
Abstract
Poly(N-acryloyl glycinamide) is a neutral polymer that can form gel-sol thermoresponsive systems with upper critical solution temperature in aqueous media. The temperature of the reversible gel-sol transition depends on the molar mass and the concentration of macromolecules. These parameters were combined to adjust the transition temperature slightly above body temperature for the sake of respecting living tissues during the sol form injection using a classical syringe. On contact with local tissues, the injected sol turned rapidly to a gel. The simplicity of the process makes it exploitable to administrate and deliver neutral or ionic drug and especially those that are soluble in aqueous media. The versatility was exemplified from formulations with cobalt acetate, small polymers (MW~2000g/mol), tartrazine and methylene blue dyes and albumin. The model compounds were allowed to diffuse in an isotonic pH=7.4 buffered medium at 37°C. All the release profiles were typical of diffusion control with 100% release within 2 to 3weeks and no obvious burst. The in vitro release of methylene blue from a gel formulation was checked prior to injection in the peritoneal cavity of mice where the release of the dye was monitored visually through tissue and organ colorations. A comparable polymer-free dye solution was used as control. Coloration appeared rapidly in tissues and organs and it was still detectable 52h post injection of the gel whereas it was no longer present at 24h in control mice.
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Affiliation(s)
- Mahfoud Boustta
- Institute For Biomolecules Max Mousseron, Team CRBA, UMR CNRS 5247, University Montpellier 1, Faculty of Pharmacy, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5, France
| | - Pierre-Emmanuel Colombo
- Department of Surgical Oncology, Montpellier Cancer Institute, ICM Val d'Aurelle, Parc Euromédecine, 34298 Montpellier Cedex 5, France
| | - Sébastien Lenglet
- Institute For Biomolecules Max Mousseron, Team CRBA, UMR CNRS 5247, University Montpellier 1, Faculty of Pharmacy, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5, France
| | - Sylvain Poujol
- Laboratory of Oncopharmacology, Montpellier Cancer Institute, ICM Val d'Aurelle, Parc Euromédecine, 34298 Montpellier Cedex 5, France
| | - Michel Vert
- Institute For Biomolecules Max Mousseron, Team CRBA, UMR CNRS 5247, University Montpellier 1, Faculty of Pharmacy, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5, France.
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29
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30
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Abstract
Interest in thermoresponsive polymers has steadily grown over many decades, and a great deal of work has been dedicated to developing temperature sensitive macromolecules that can be crafted into new smart materials. However, the overwhelming majority of previously reported temperature-responsive polymers are based on poly(N-isopropylacrylamide) (PNIPAM), despite the fact that a wide range of other thermoresponsive polymers have demonstrated similar promise for the preparation of adaptive materials. Herein, we aim to highlight recent results that involve thermoresponsive systems that have not yet been as fully considered. Many of these (co)polymers represent clear opportunities for advancements in emerging biomedical and materials fields due to their increased biocompatibility and tuneable response. By highlighting recent examples of newly developed thermoresponsive polymer systems, we hope to promote the development of new generations of smart materials.
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Affiliation(s)
- Debashish Roy
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275-0314, USA
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31
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Liu F, Seuring J, Agarwal S. Atom transfer radical polymerization as a tool for making poly(N-acryloylglycinamide) with molar mass independent UCST-type transitions in water and electrolytes. Polym Chem 2013. [DOI: 10.1039/c3py00222e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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32
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Seuring J, Agarwal S. Polymers with upper critical solution temperature in aqueous solution. Macromol Rapid Commun 2012; 33:1898-920. [PMID: 22961764 DOI: 10.1002/marc.201200433] [Citation(s) in RCA: 387] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 07/27/2012] [Indexed: 01/29/2023]
Abstract
This review focuses on polymers with upper critical solution temperature (UCST) in water or electrolyte solution and provides a detailed survey of the yet few existing examples. A guide for synthetic chemists for the design of novel UCST polymers is presented and possible handles to tune the phase transition temperature, sharpness of transition, hysteresis, and effectiveness of phase separation are discussed. This review tries to answer the question why polymers with UCST remained largely underrepresented in academic as well as applied research and what requirements have to be fulfilled to make these polymers suitable for the development of smart materials with a positive thermoresponse.
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Affiliation(s)
- Jan Seuring
- Philipps-Universität Marburg, Department of Chemistry and Scientific Center for Materials Science, Hans-Meerwein Straße, 35032 Marburg, Germany
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33
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Liu F, Seuring J, Agarwal S. Controlled radical polymerization ofN-acryloylglycinamide and UCST-type phase transition of the polymers. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26322] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Seuring J, Bayer FM, Huber K, Agarwal S. Upper Critical Solution Temperature of Poly(N-acryloyl glycinamide) in Water: A Concealed Property. Macromolecules 2011. [DOI: 10.1021/ma202059t] [Citation(s) in RCA: 173] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jan Seuring
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein Straße, D-35032 Marburg, Germany
| | - Frank M. Bayer
- Department Chemie−Physikalische Chemie,Universität Paderborn,Warburger Straße 100, D-33098 Paderborn, Germany
| | - Klaus Huber
- Department Chemie−Physikalische Chemie,Universität Paderborn,Warburger Straße 100, D-33098 Paderborn, Germany
| | - Seema Agarwal
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein Straße, D-35032 Marburg, Germany
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35
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Schmidt BVKJ, Hetzer M, Ritter H, Barner-Kowollik C. Cyclodextrin-Complexed RAFT Agents for the Ambient Temperature Aqueous Living/Controlled Radical Polymerization of Acrylamido Monomers. Macromolecules 2011. [DOI: 10.1021/ma2011969] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bernhard V. K. J. Schmidt
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany
| | - Martin Hetzer
- Lehrstuhl für Präparative Polymerchemie, Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine Universität, Universitätsstrasse 1, Geb. 26.33.00, 40225 Düsseldorf, Germany
| | - Helmut Ritter
- Lehrstuhl für Präparative Polymerchemie, Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine Universität, Universitätsstrasse 1, Geb. 26.33.00, 40225 Düsseldorf, Germany
| | - Christopher Barner-Kowollik
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany
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36
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Seuring J, Agarwal S, Harms K. N-Acryloyl glycinamide. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o2170. [PMID: 22091182 PMCID: PMC3213605 DOI: 10.1107/s1600536811029758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 07/22/2011] [Indexed: 05/26/2023]
Abstract
The molecule of the title compound [systematic name: N-(carbamoylmethyl)prop-2-enamide], C5H8N2O2, which can be radically polymerized to polymers with thermoresponsive behavior in aqueous solution, consists of linked essentially planar acrylamide and amide segments [maximum deviations = 0.054 (1) and 0.009 (1) Å] with an angle of 81.36 (7)° between their mean planes. In the crystal, N—H⋯O hydrogen bonding leads to an infinite two-dimensional network along (100).
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Affiliation(s)
- Jan Seuring
- Philipps Universität Marburg, Fachbereich Chemie, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
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37
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Glatzel S, Laschewsky A, Lutz JF. Well-Defined Uncharged Polymers with a Sharp UCST in Water and in Physiological Milieu. Macromolecules 2010. [DOI: 10.1021/ma102677k] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Stefan Glatzel
- Fraunhofer Institute for Applied Polymer Research, Geiselbergstrasse 69, Potsdam 14476, Germany
| | - André Laschewsky
- Fraunhofer Institute for Applied Polymer Research, Geiselbergstrasse 69, Potsdam 14476, Germany
- Department of Chemistry, University of Potsdam, Potsdam, Germany
| | - Jean-François Lutz
- Fraunhofer Institute for Applied Polymer Research, Geiselbergstrasse 69, Potsdam 14476, Germany
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38
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Boyer C, Stenzel MH, Davis TP. Building nanostructures using RAFT polymerization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24482] [Citation(s) in RCA: 280] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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39
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Ott P, Trenkenschuh K, Gensel J, Fery A, Laschewsky A. Free-standing membranes via covalent cross-linking of polyelectrolyte multilayers with complementary reactivity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:18182-18188. [PMID: 21033763 DOI: 10.1021/la1035882] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polyelectrolyte multilayers were prepared by the layer-by-layer (LbL) technique from polyanions bearing aldehyde and polycations with 4-methylpyridinium moieties. The aldol reaction of these complementary reactive groups can be followed by the formation of fluorescent merocyanine dyes, resulting in cross-linked, ultrathin polymer films. The efficient stabilization of the polymer films allows for their intact removal from high surface energy supports, such as glass or surface oxidized silicon wafers, by simple treatment with salt solutions, yielding free-standing membranes. Increasing separation of the reactive polycation and polyanion layers with layers of inert polycation and polyanion analogues only gradually prevents the coupling reaction. From this dependence, polyions assembled in consecutive adsorption layers seem to be able to penetrate into as far as three neighboring layers.
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Affiliation(s)
- Patrick Ott
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
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