1
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Patri S, Thanh NTK, Kamaly N. Magnetic iron oxide nanogels for combined hyperthermia and drug delivery for cancer treatment. NANOSCALE 2024; 16:15446-15464. [PMID: 39113663 DOI: 10.1039/d4nr02058h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Hyperthermia and chemotherapy represent potential modalities for cancer treatments. However, hyperthermia can be invasive, while chemotherapy drugs often have severe side effects. Recent clinical investigations have underscored the potential synergistic efficacy of combining hyperthermia with chemotherapy, leading to enhanced cancer cell killing. In this context, magnetic iron oxide nanogels have emerged as promising candidates as they can integrate superparamagnetic iron oxide nanoparticles (IONPs), providing the requisite magnetism for magnetic hyperthermia, with the nanogel scaffold facilitating smart drug delivery. This review provides an overview of the synthetic methodologies employed in fabricating magnetic nanogels. Key properties and designs of these nanogels are discussed and challenges for their translation to the clinic and the market are summarised.
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Affiliation(s)
- Sofia Patri
- Department of Materials, Molecular Sciences Research Hub, Imperial College London, 82 Wood Ln, London W12 0BZ, UK.
| | - Nguyen Thi Kim Thanh
- UCL Healthcare Biomagnetic and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK.
- Biophysic Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK
| | - Nazila Kamaly
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Ln, London W12 0BZ, UK.
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2
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Ashikari Y, Yoshioka R, Yonekura Y, Yoo DE, Okamoto K, Nagaki A. Flowmicro In-Line Analysis-Driven Design of Reactions mediated by Unstable Intermediates: Flash Monitoring Approach. Chemistry 2024:e202303774. [PMID: 38216535 DOI: 10.1002/chem.202303774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/14/2024]
Abstract
The direct observation of reactive intermediates is an important issue for organic synthesis. However, intermediates with an extreme instability are hard to be monitored by common spectroscopic methods such as FTIR. We have developed synthetic method utilizing flow microreactors, which enables a generation and reactions of unstable intermediates. Herein we report that, based on our flowmicro techniques, we developed an in-line analysis method for reactive intermediates in increments of milliseconds. We demonstrated the direct observation of the living and dead species of the anionic polymerization of alkyl methacrylates. The direct information of the living species enabled the anionic polymerization and copolymerization of oligo(ethylene glycol) methyl ether methacrylates, which is the important but difficult reaction in the conventional method.
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Affiliation(s)
- Yosuke Ashikari
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
| | - Rikako Yoshioka
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
| | - Yuya Yonekura
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
- TOHO Chemical Industry Co., Ltd., 5-2931 Urago-cho, Yokosuka, Kanagawa, 237-0062, Japan
| | - Dong-Eun Yoo
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
| | - Kazuhiro Okamoto
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
| | - Aiichiro Nagaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
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3
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Otulakowski Ł, Trzebicka B. Aggregation of Thermoresponsive Polymethacrylates in a Dulbecco's Modified Eagle Medium and Its Salts. Polymers (Basel) 2023; 15:3587. [PMID: 37688213 PMCID: PMC10489804 DOI: 10.3390/polym15173587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/21/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
The thermal behavior and aggregation process of the poly(N-isopropyl acrylamide), poly[oligo(ethylene glycol) methyl ether methacrylate], and poly[(2-hydroxyethyl methacrylate)-co-oligo(ethylene glycol) methyl ether methacrylate] thermoresponsive polymers were studied in a commonly used Dulbecco's Modified Eagle Medium (DMEM) cell culture medium and solutions of its individual components in the same concentration as found in DMEM. All studied copolymers exhibited an unexpected transmittance profile in the DMEM. During heating above the cloud point temperature (TCP), the polymers additionally aggregated, which led to the formation of their precipitates. The behavior of the polymers was further studied to evaluate how individual salts affected the transition temperature, size (Dh), and stability of the polymer particles. Organic additives, such as amino acids and glucose, had a significantly lesser impact on the thermoresponsive aggregation of the polymers than inorganic ones. Changes to the TCP were small and the formation of precipitates was not observed. The presence of small amounts of amino acids caused a decrease in the polymer aggregate sizes. Obtained results are of utmost importance in thermoresponsive drug nanocarrier studies.
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Affiliation(s)
- Łukasz Otulakowski
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
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4
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Gjerde N, Del Giudice A, Zhu K, Knudsen KD, Galantini L, Schillén K, Nyström B. Synthesis and Characterization of a Thermoresponsive Copolymer with an LCST-UCST-like Behavior and Exhibiting Crystallization. ACS OMEGA 2023; 8:31145-31154. [PMID: 37663484 PMCID: PMC10468772 DOI: 10.1021/acsomega.3c03162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023]
Abstract
In this work, the diblock copolymer methoxy-poly(ethylene glycol)-block-poly(ε-caprolactone) (MPEG-b-PCL) was synthesized with a block composition that allows this polymer in aqueous media to possess both an upper critical solution temperature (UCST) and a lower critical solution temperature (LCST) over a limited temperature interval. The value of the UCST, associated with crystallization of the PCL-block, depended on heating (H) or cooling (C) of the sample and was found to be CPUCSTH = 32 °C and CPUCSTC = 23 °C, respectively. The LCST was not affected by the heating or cooling scans; assumed a value of 52 °C (CPLCSTH = CPLCSTC). At intermediate temperatures (e.g., 45 °C), dynamic light scattering (DLS), small-angle X-ray scattering (SAXS), and cryogenic transmission electron microscopy (cryo-TEM) showed that the solution consisted of a large population of spherical core-shell particles and some self-assembled rodlike objects. At low temperatures (below 32 °C), differential scanning calorimetry (DSC) and wide-angle X-ray scattering (WAXS) in combination with SAXS disclosed the formation of crystals with a cylindrical core-shell structure. Cryo-TEM supported a thread-like appearance of the self-assembled polymer chains. At temperatures above 52 °C, incipient phase separation took place and large aggregation complexes of amorphous morphology were formed. This work provides insight into the intricate interplay between UCST and LCST and the type of structures formed at these conditions in aqueous solutions of MPEG-b-PCL diblock copolymers.
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Affiliation(s)
- Natalie
Solfrid Gjerde
- Department
of Chemistry, “Sapienza” University
of Rome, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Alessandra Del Giudice
- Department
of Chemistry, “Sapienza” University
of Rome, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Kaizheng Zhu
- Faculty
of Engineering, Østfold University
College, P.O. Box 700, 1757 Halden, Norway
| | | | - Luciano Galantini
- Department
of Chemistry, “Sapienza” University
of Rome, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Karin Schillén
- Division
of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Bo Nyström
- Department
of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
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5
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Loginova TP, Khotina IA, Kabachii YA, Kochev SY, Abramov VM, Khlebnikov VS, Kulikova NL, Mezhuev YO. Promising Gene Delivery Properties of Polycations Based on 2-(N, N-dimethylamino)ethyl Methacrylate and Polyethylene Glycol Monomethyl Ether Methacrylate Copolymers. Polymers (Basel) 2023; 15:3036. [PMID: 37514425 PMCID: PMC10383831 DOI: 10.3390/polym15143036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Cationic copolymers based on 2-(N,N-dimethylamino)ethyl methacrylate and polyethylene glycol monomethyl ether (pDMAEMA-co-PEO) with different molecular weights have been synthesized. Their physicochemical properties were studied by NMR spectroscopy, sedimentation, and potentiometric titration. According to the data of potentiometric titration for the synthesized pegylated cationic copolymers, the apparent dissociation constants were determined in the pH range from 4.5 to 8.5. The physicochemical properties of interpolyelectrolyte complexes of these polycations with circular DNA (IPEC DNA) were also studied by dynamic light scattering, electrophoretic mobility, and TEM methods. It has been established that the diameter and electrokinetic potential (ζ-potential) of interpolyelectrolyte complexes can be varied over a wide range (from 200 nm to 1.5 μm and from -25 mV to +30 mV) by changing the ratio of oppositely charged ionizable groups in pegylated cationic copolymers and DNA, as well as by regulating medium pH. The resistance of the IPEC DNA/polycation complex to the action of nucleases was studied by electrophoresis in agarose gel; the cytotoxic effect of the polymers in vitro, and the efficiency of penetration (transfection) of IPEC DNA with PDMAEMA-co-PEO-polycations into eukaryotic cells of a cell line derived from human embryonic kidneys HEK 293 in vitro.
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Affiliation(s)
- Tatiana P Loginova
- A.N. Nesmeyanov Instituite of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
| | - Irina A Khotina
- A.N. Nesmeyanov Instituite of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
| | - Yurii A Kabachii
- A.N. Nesmeyanov Instituite of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
| | - Sergei Yu Kochev
- A.N. Nesmeyanov Instituite of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
| | - Vyacheslav M Abramov
- JSC Institute Immunological Engineering, Nauchnaya street 1, 142380 Lybuchany, Moscow District, Moscow Region, Russia
| | - Valentin S Khlebnikov
- JSC Institute Immunological Engineering, Nauchnaya street 1, 142380 Lybuchany, Moscow District, Moscow Region, Russia
| | - Natalia L Kulikova
- JSC Institute Immunological Engineering, Nauchnaya street 1, 142380 Lybuchany, Moscow District, Moscow Region, Russia
| | - Yaroslav O Mezhuev
- A.N. Nesmeyanov Instituite of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia
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6
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Lukáš Petrova S, Vragović M, Pavlova E, Černochová Z, Jäger A, Jäger E, Konefał R. Smart Poly(lactide)- b-poly(triethylene glycol methyl ether methacrylate) (PLA- b-PTEGMA) Block Copolymers: One-Pot Synthesis, Temperature Behavior, and Controlled Release of Paclitaxel. Pharmaceutics 2023; 15:pharmaceutics15041191. [PMID: 37111676 PMCID: PMC10143907 DOI: 10.3390/pharmaceutics15041191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
This paper introduces a new class of amphiphilic block copolymers created by combining two polymers: polylactic acid (PLA), a biocompatible and biodegradable hydrophobic polyester used for cargo encapsulation, and a hydrophilic polymer composed of oligo ethylene glycol chains (triethylene glycol methyl ether methacrylate, TEGMA), which provides stability and repellent properties with added thermo-responsiveness. The PLA-b-PTEGMA block copolymers were synthesized using ring-opening polymerization (ROP) and reversible addition-fragmentation chain transfer (RAFT) polymerization (ROP-RAFT), resulting in varying ratios between the hydrophobic and hydrophilic blocks. Standard techniques, such as size exclusion chromatography (SEC) and 1H NMR spectroscopy, were used to characterize the block copolymers, while 1H NMR spectroscopy, 2D nuclear Overhauser effect spectroscopy (NOESY), and dynamic light scattering (DLS) were used to analyze the effect of the hydrophobic PLA block on the LCST of the PTEGMA block in aqueous solutions. The results show that the LCST values for the block copolymers decreased with increasing PLA content in the copolymer. The selected block copolymer presented LCST transitions at physiologically relevant temperatures, making it suitable for manufacturing nanoparticles (NPs) and drug encapsulation-release of the chemotherapeutic paclitaxel (PTX) via temperature-triggered drug release mechanism. The drug release profile was found to be temperature-dependent, with PTX release being sustained at all tested conditions, but substantially accelerated at 37 and 40 °C compared to 25 °C. The NPs were stable under simulated physiological conditions. These findings demonstrate that the addition of hydrophobic monomers, such as PLA, can tune the LCST temperatures of thermo-responsive polymers, and that PLA-b-PTEGMA copolymers have great potential for use in drug and gene delivery systems via temperature-triggered drug release mechanisms in biomedicine applications.
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Affiliation(s)
- Svetlana Lukáš Petrova
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Martina Vragović
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Zulfiya Černochová
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Alessandro Jäger
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Eliézer Jäger
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Rafał Konefał
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
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7
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Zhang Y, Xu C, Zhang D, Chen X. Proteinosomes via Self-Assembly of Thermoresponsive Miktoarm Polymer Protein Bioconjugates. Biomacromolecules 2023; 24:1994-2002. [PMID: 37002865 DOI: 10.1021/acs.biomac.2c01368] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
To fabricate nanoscale proteinosomes, thermoresponsive miktoarm polymer protein bioconjugates were prepared through highly efficient molecular recognition between the β-cyclodextrin modified BSA (CD-BSA) and the adamantyl group anchored at the junction point of the thermoresponsive block copolymer poly(ethylene glycol)-b-poly(di(ethylene glycol) methyl ether methacrylate) (PEG-b-PDEGMA). PEG-b-PDEGMA was synthesized by the Passerini reaction of benzaldehyde-modified PEG, 2-bromo-2-methylpropionic acid, and 1-isocyanoadamantane, followed by the atom transfer radical polymerization of DEGMA. Two block copolymers with different chain lengths of PDEGMA were prepared, and both self-assembled into polymersomes at a temperature above their lower critical solution temperatures (LCST). The two copolymers can undergo molecular recognition with the CD-BSA and form miktoarm star-like bioconjugates. The bioconjugates self-assembled into ∼160 nm proteinosomes at a temperature above their LCSTs, and the miktoarm star-like structure has a great effect on the formation of the proteinosomes. Most of the secondary structure and esterase activity of BSA in the proteinosomes were maintained. The proteinosomes exhibited low toxicity to the 4T1 cells and could deliver model drug doxorubicin into the 4T1 cells.
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Affiliation(s)
- Yue Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Changlan Xu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Daowen Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Xiaoai Chen
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
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8
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Liu C, Wang Y, Wang S, Xu P, Liu R, Han D, Wei Y. A Star-Shaped Copolymer with Tetra-Hydroxy-Phenylporphyrin Core and Four PNIPAM- b-PMAGA Arms for Targeted Photodynamic Therapy. Polymers (Basel) 2023; 15:polym15030509. [PMID: 36771810 PMCID: PMC9919623 DOI: 10.3390/polym15030509] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
The novel thermosensitive star-shaped tetra-hydroxy-phenylporphyrin-cored (THPP) double hydrophilic poly(N-isopropylacrylamide)-b-poly(methylacrylamide glucose) block copolymers (THPP-(PNIPAM-b-PMAGA)4) were synthesized via the reversible addition-fragmentation chain transfer (RAFT) polymerization. Notably, the low critical solution temperatures (LCSTs) of THPP-(PNIPAM-b-PMAGA)4 were above normal body temperature (37 °C) which depended on the hydrophilic PMAGA contents of copolymers. When the temperature was higher than the LCST of the copolymer, the copolymer could be neutralized into micelles in aqueous and could be coated with antitumor drugs and released around tumor cells. The MTT study indicated that THPP-(PNIPAM-b-PMAGA)4 had a low toxicity to L929 and HeLa cells in the absence of light. However, THPP-(PNIPAM-b-PMAGA)4 showed a high toxicity with HeLa cells under light irradiation which could be used as a potential photosensitizer for photodynamic therapy (PDT). In addition, THPP-(PNIPAM-b-PMAGA)4 showed specific a recognition function with Concanavalin A (Con A) to achieve active targeted drug delivery. This work provides a new approach for the development of tumor targeting and chemotherapy/PDT.
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Affiliation(s)
- Changling Liu
- School of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China
| | - Yirong Wang
- College of Biology and Food Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China
| | - Siyu Wang
- College of Biology and Food Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China
| | - Pengcheng Xu
- College of Biology and Food Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China
| | - Renning Liu
- College of Biology and Food Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China
| | - Dandan Han
- College of Biology and Food Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China
- Correspondence: (D.H.); (Y.W.)
| | - Yen Wei
- Department of Chemistry, The Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing 100084, China
- Correspondence: (D.H.); (Y.W.)
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9
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Synthesis and thermoresponsive properties of polymethacrylate molecular brushes with oligo(ethylene glycol)-block-oligo(propylene glycol) side chains. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03929-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Perez SJLP, Montalbo RCK, Concio CAP, Madrid LLB, Arco SD. Thermoresponsive oligo(ethylene glycol) methyl ether methacrylate homopolymers via RAFT polymerization in 1-alkyl-3-methylimidazolium hexafluorophosphate ionic liquids. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2022. [DOI: 10.1080/10601325.2022.2117054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Ser John Lynon P. Perez
- Natural Sciences Research Institute, University of the Philippines Diliman, Quezon City, Philippines
| | | | - Christian Angelo P. Concio
- Synthetic Organic Chemistry Laboratory Institute of Chemistry, University of the Philippines Diliman, Quezon City, Philippines
| | - Ludhovik Luiz B. Madrid
- Synthetic Organic Chemistry Laboratory Institute of Chemistry, University of the Philippines Diliman, Quezon City, Philippines
| | - Susan D. Arco
- Natural Sciences Research Institute, University of the Philippines Diliman, Quezon City, Philippines
- Synthetic Organic Chemistry Laboratory Institute of Chemistry, University of the Philippines Diliman, Quezon City, Philippines
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11
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Yuan Z, Ding J, Zhang Y, Huang B, Song Z, Meng X, Ma X, Gong X, Huang Z, Ma S, Xiang S, Xu W. Components, mechanisms and applications of stimuli-responsive polymer gels. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Liu Y, Lei Y, Chen Y. Thermoresponsive Properties of Poly[oligo(ethylene glycol) sorbate]s Prepared by Organocatalyzed Group Transfer Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yujian Liu
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong 518060, China
| | - Yongyao Lei
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong 518060, China
| | - Yougen Chen
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong 518060, China
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13
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Fu T, Shen J, Meng Y, Wang J, Wang S, Zhang Y, Wang T, Zhang X. Automatic Detoxification Medicine Delivery by Thermo-Sensitive Poly(ethylene glycol)-Based Nanogels. Polymers (Basel) 2022; 14:892. [PMID: 35267715 PMCID: PMC8912541 DOI: 10.3390/polym14050892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 02/01/2023] Open
Abstract
During the medication-assisted treatment of drug abuse, side effects and addiction liabilities are commonly observed. Thus, control of the medication dose is very important. According to body temperature abnormalities in drug abusers, a thermo-sensitive nanogel was synthesized as a drug carrier to automatically deliver detoxification medicines. This nanogel was prepared through the synthesis of polystyrene (PS) core microspheres, followed by coverage with a nonlinear poly(ethylene glycol)-based copolymer shell. The PS core microspheres were found to be an ideal hydrophobic core for loading the detoxification medicines effectively. The nonlinear poly(ethylene glycol)-based copolymer shell layer consisted of 2-(2-methoxyethoxy)ethyl methacrylate (MEO2MA) and oligo(ethylene glycol) methyl ether methacrylates (Mn = 300 g mol-1, MEO5MA). The monomer feeding molar ratio n(MEO2MA)/n(MEO5MA) of 1:3 enabled PS@P(MEO2MA-co-MEO5MA) nanogels to exhibit a distinguished colloidal stability and an adjustable volume phase transition temperature which is within the drug addicts' abnormally fluctuating temperature range. Importantly, it was found that the obtained PS@P(MEO2MA-co-MEO5MA) nanogels displayed good biocompatibility with rat aortic endothelial cells in the given concentration range. The nanogels also exhibited a satisfactory loading efficiency and thermo-sensitive/sustained release characteristics for three detoxification medicines: sinomenine, diltiazem and chlorpromazine.
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Affiliation(s)
- Ting Fu
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China; (T.F.); (Y.M.); (J.W.); (Y.Z.); (T.W.)
| | - Jing Shen
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China; (T.F.); (Y.M.); (J.W.); (Y.Z.); (T.W.)
| | - Yuting Meng
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China; (T.F.); (Y.M.); (J.W.); (Y.Z.); (T.W.)
| | - Jun Wang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China; (T.F.); (Y.M.); (J.W.); (Y.Z.); (T.W.)
| | - Siping Wang
- Institute of Education, China Democratic League (Yunnan), Kunming 650228, China;
| | - Yuhui Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China; (T.F.); (Y.M.); (J.W.); (Y.Z.); (T.W.)
| | - Tongwen Wang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China; (T.F.); (Y.M.); (J.W.); (Y.Z.); (T.W.)
| | - Xufeng Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China; (T.F.); (Y.M.); (J.W.); (Y.Z.); (T.W.)
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14
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Narumi A, Sato SI, Shen X, Kakuchi T. Precision synthesis for well-defined linear and/or architecturally controlled thermoresponsive poly(N-substituted acrylamide)s. Polym Chem 2022. [DOI: 10.1039/d1py01449h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe the progress in precision polymerizations of specific kinds of N-alkylacrylamides and N,N-dialkylacrylamides to produce polymers showing thermoresponsive properties in aqueous media, which representatively include the reversible-deactivation radical polymerizations...
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15
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Li Y, Liu L, Zhao H. Enzyme-catalyzed cascade reactions on multienzyme proteinosomes. J Colloid Interface Sci 2021; 608:2593-2601. [PMID: 34763887 DOI: 10.1016/j.jcis.2021.10.185] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/21/2021] [Accepted: 10/29/2021] [Indexed: 10/19/2022]
Abstract
In this research, to mimic the structures and the functionalities of the organelles in living cells multienzyme proteinosomes with β-galactosidase (β-gal), glucose oxidase (GOx) and horseradish peroxidase (HRP) on the surfaces are fabricated by hydrophobic-interaction induced self-assembly approach. To investigate the mechanism of the formation of proteinosomes, poly(di(ethylene glycol) methyl ether methacrylate) (PDEGMA) and bovine serum albumin are employed in a model system and the study demonstrates that the hydrophobic interaction between the dehydrated polymer chains and the hydrophobic patches on the proteins plays a key role in the fabrication of the proteinosomes. Based on the model system, multienzyme proteinosomes with β-gal, GOx and HRP on the surfaces are fabricated through hydrophobic interaction between PDEGMA and enzyme molecules. Enzyme-catalyzed cascade reactions are performed on the surfaces of the proteinosomes, and the immobilized enzymes show higher bioactivities than the "free" enzymes, due to the direct transfer of the product as a substrate from one enzyme molecule to another. This research provides a unique method for the synthesis of multienzyme proteinosomes with improved bioactivities, and the biofunctional structures will find promising applications in medical and biological science.
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Affiliation(s)
- Yuwei Li
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Li Liu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China.
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China.
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16
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Quijada-Garrido I, García O. How a family of nanostructured amphiphilic block copolymers synthesized by RAFT-PISA take advantage of thiol groups to direct the in situ assembly of high luminescent CuNCs within their thermo-responsive core. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Aoki D, Miyake A, Tachaboonyakiat W, Ajiro H. Remarkable diastereomeric effect on thermoresponsive behavior of polyurethane based on lysine and tartrate ester derivatives. RSC Adv 2021; 11:35607-35613. [PMID: 35493186 PMCID: PMC9043254 DOI: 10.1039/d1ra05877k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/23/2021] [Indexed: 11/24/2022] Open
Abstract
This study describes the long-distance diastereomeric effect on thermoresponsive properties in water-soluble diastereomeric polyurethanes (PUs) composed of an l-lysine ethyl ester diisocyanate and a trimethylene glycol l-/d-tartrate ester, which have differences in spatial arrangements of the ethyl esters in the mirror image. The PUs based on l-lysine and l-/d-tartrate ester, named l-PU and d-PU, were synthesized with various number average molecular weights from 4700 to 13 100. In turbidimetry, l-PU showed a steep phase transition from 100%T to 0%T within about 10 °C at 4 g L−1, whereas d-PU did not change completely to 0%T transmittance even at 80 °C at 4 g L−1. In addition, the thermoresponsive properties of l-PU were less affected by concentration than those of d-PU. This long-distance diastereomeric effect on thermoresponsive behavior between l-PU and d-PU appeared in common among 6 samples with 4700 to 13 100 number average molecular weight. In the dynamic light scattering experiments at each transmittance, the hydrodynamic diameter (Dh) of l-PU increased up to 1000 nm, while the Dh of d-PU remained almost at 200–300 nm. The C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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O stretching vibration of FT-IR spectra showed that d-PU has more hydrogen-bonded ester groups than L-PU. Thus, we speculated that the difference in the retention of polymer chains in the micelle to promote intermicellar bridging generates the long-distance diastereomeric effect. The long-distance diastereomeric effect on thermoresponsive properties in a polyurethane system consisting of chiral monomers was reported.![]()
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Affiliation(s)
- Daisuke Aoki
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology 8916-5 Takayama-cho Ikoma Nara 630-0192 Japan
| | - Akihiro Miyake
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology 8916-5 Takayama-cho Ikoma Nara 630-0192 Japan
| | - Wanpen Tachaboonyakiat
- Department of Materials Science, Faculty of Science, Chulalongkorn University Phayathai, Pathumwan Bangkok 10330 Thailand
| | - Hiroharu Ajiro
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology 8916-5 Takayama-cho Ikoma Nara 630-0192 Japan .,Data Science Center, Nara Institute of Science and Technology 8916-5 Takayama-cho Ikoma Nara 630-0192 Japan
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18
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Oberhausen B, Kickelbick G. Induction heating induced self-healing of nanocomposites based on surface-functionalized cationic iron oxide particles and polyelectrolytes. NANOSCALE ADVANCES 2021; 3:5589-5604. [PMID: 36133272 PMCID: PMC9417805 DOI: 10.1039/d1na00417d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/05/2021] [Indexed: 06/16/2023]
Abstract
Supramolecular interactions represent versatile, reversible, and intrinsic mechanisms for bond formation after the failure of materials. Ionic interactions excel through high flexibility and binding strength. In this study, ionic interactions between polymer matrices and inorganic nanoparticles were used to induce self-healing properties. Random, anionic polyelectrolyte copolymers consisting of di(ethylene glycol) methyl ether methacrylate and sodium-4-(methacryloyloxy)butan-1-sulfonate were synthesized by atom transfer radical polymerization. Differential scanning calorimetry measurements confirmed the adjustability of the glass transition temperature via the polymer composition. Within the glass transition temperature window of the homopolymers from -23 °C to 126 °C, the range between -18 °C to 50 °C was examined, generating suitable matrices for self-healing. Superparamagnetic iron oxide nanoparticles with a size of 8 nm were synthesized by thermal decomposition of iron(iii) acetylacetonate and used as the inorganic filler. Positive surface charges were introduced by functionalization with N,N,N-trimethyl-6-phosphonhexan-1-aminium bromide. Functionalization was confirmed with FTIR, TGA, and zeta potential measurements. Ionic interactions between filler and polymer promote a uniform particle dispersion within the material. Self-healing experiments were performed at 80 °C and without the addition of further healing agents. Utilizing the magnetic properties induced by the iron oxide nanoparticles, spatially resolved healing within an alternating magnetic field was achieved on a μm scale.
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Affiliation(s)
- Bastian Oberhausen
- Saarland University, Inorganic Solid-State Chemistry Campus, Building C4.1 66123 Saarbrücken Germany
| | - Guido Kickelbick
- Saarland University, Inorganic Solid-State Chemistry Campus, Building C4.1 66123 Saarbrücken Germany
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19
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Zhao P, Deng M, Yang Y, Zhang J, Zhang Y. Synthesis and Self-Assembly of Thermoresponsive Biohybrid Graft Copolymers Based on a Combination of Passerini Multicomponent Reaction and Molecular Recognition. Macromol Rapid Commun 2021; 42:e2100424. [PMID: 34505724 DOI: 10.1002/marc.202100424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/07/2021] [Indexed: 12/25/2022]
Abstract
Amphiphilic graft copolymers exhibit fascinating self-assembly behaviors. Their molecular architectures significantly affect the morphology and functionality of the self-assemblies. Considering the potential application of amphiphilic graft copolymers in the fabrication of nanocarriers, it is essential to synthesize well-defined graft copolymers with desired functional groups. Herein, the Passerini reaction and molecular recognition are introduced to the synthesis of functional thermoresponsive graft copolymers. A bifunctional monomer 2-((adamantan-1-yl)amino)-1-(4-((2-bromo-2-methylpropanoyl)oxy)phenyl)-2-oxoethyl methacrylate (ABMA) with a bromo group for atom transfer radical polymerization (ATRP) and an adamantyl group for molecular recognition is synthesized through the Passerini reaction. The graft copolymers are prepared by reversible addition-fragmentation transfer (RAFT) copolymerization of ABMA and oligo(ethylene glycol) methyl ether methacrylate (OEGMA) followed by RAFT end group removal and ATRP of di(ethylene glycol)methyl ether methacrylate (DEGMA) initiated by the ABMA units. The graft copolymer P(OEGMA-co-ABMA)-g-PDEGMA can be functionalized with β-cyclodextrin modified peptides, affording a thermoresponsive biohybrid graft copolymer. At a temperature above its lower critical solution temperature, the biohybrid graft copolymer self-assembles into peptide-modified polymersomes.
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Affiliation(s)
- Peiqiong Zhao
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Meigui Deng
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Yongfang Yang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Jimin Zhang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Yue Zhang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
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20
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Wang M, Wang E, Cao H, Liu S, Wang X, Wang F. Construction of
Self‐Reporting
Biodegradable
CO
2
‐Based
Polycarbonates for the Visualization of Thermoresponsive Behavior with
Aggregation‐Induced
Emission Technology
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100372] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Molin Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun Jilin 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei Anhui 230026 China
| | - Enhao Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun Jilin 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei Anhui 230026 China
| | - Han Cao
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun Jilin 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei Anhui 230026 China
| | - Shunjie Liu
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun Jilin 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei Anhui 230026 China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun Jilin 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei Anhui 230026 China
| | - Fosong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun Jilin 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei Anhui 230026 China
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21
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Kalinova R, Valchanova M, Dimitrov I, Turmanova S, Ugrinova I, Petrova M, Vlahova Z, Rangelov S. Functional Polyglycidol-Based Block Copolymers for DNA Complexation. Int J Mol Sci 2021; 22:9606. [PMID: 34502513 PMCID: PMC8431755 DOI: 10.3390/ijms22179606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 01/04/2023] Open
Abstract
Gene therapy is an attractive therapeutic method for the treatment of genetic disorders for which the efficient delivery of nucleic acids into a target cell is critical. The present study is aimed at evaluating the potential of copolymers based on linear polyglycidol to act as carriers of nucleic acids. Functional copolymers with linear polyglycidol as a non-ionic hydrophilic block and a second block bearing amine hydrochloride pendant groups were prepared using previously synthesized poly(allyl glycidyl ether)-b-polyglycidol block copolymers as precursors. The amine functionalities were introduced via highly efficient radical addition of 2-aminoethanethiol hydrochloride to the alkene side groups. The modified copolymers formed loose aggregates with strongly positive surface charge in aqueous media, stabilized by the presence of dodecyl residues at the end of the copolymer structures and the hydrogen-bonding interactions in polyglycidol segments. The copolymer aggregates were able to condense DNA into stable and compact nanosized polyplex particles through electrostatic interactions. The copolymers and the corresponding polyplexes showed low to moderate cytotoxicity on a panel of human cancer cell lines. The cell internalization evaluation demonstrated the capability of the polyplexes to successfully deliver DNA into the cancer cells.
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Affiliation(s)
- Radostina Kalinova
- Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Miroslava Valchanova
- Department of Material Science and Technology, University “Prof. Assen Zlatarov”, 8010 Burgas, Bulgaria; (M.V.); (S.T.)
| | - Ivaylo Dimitrov
- Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Sevdalina Turmanova
- Department of Material Science and Technology, University “Prof. Assen Zlatarov”, 8010 Burgas, Bulgaria; (M.V.); (S.T.)
| | - Iva Ugrinova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.P.); (Z.V.)
| | - Maria Petrova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.P.); (Z.V.)
| | - Zlatina Vlahova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.P.); (Z.V.)
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
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22
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Meng Y, Shen J, Fu T, Feng X, Wang S, Wang T, Zhang X. Thermosensitive
PMMA
core/oligo(ethylene glycol)‐based shell microgels as drug carriers in detoxification treatment. J Appl Polym Sci 2021. [DOI: 10.1002/app.51454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yuting Meng
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Jing Shen
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Ting Fu
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Xiyun Feng
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Siping Wang
- Institute of Education Sciences, Yunnan Long‐Spring International Academy Kunming China
| | - Tongwen Wang
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
| | - Xufeng Zhang
- College of Chemistry and Chemical Engineering Yunnan Normal University Kunming China
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23
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Roos AH, Hoffmann JF, Binder WH, Hinderberger D. Nanoscale structure and dynamics of thermoresponsive single-chain nanoparticles investigated by EPR spectroscopy. SOFT MATTER 2021; 17:7032-7037. [PMID: 34251013 DOI: 10.1039/d1sm00582k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We characterize temperature-dependent macroscopic and nanoscopic phase transitions and nanoscopic pre-transitions of water-soluble single chain nanoparticles (SCNPs). The studied SCNPs are based on polymers displaying lower-critical solution temperature (LCST) behavior and show nanoscale compartmentation. SCNPs are amenable to continuous wave electron paramagnetic resonance (CW EPR) spectroscopy to study how amphiphilic, non-covalently added nitroxide spin probes or covalently attached spin labels sample their environment concerning nanoscale structures (polarity, hydrophilicity/-phobicity) and dynamics. These SCNPs are formed through single-chain collapse and have been shown to have nanosized compartments that are rigidified during the crosslinking process. We analyze the temperature-dependent phase transitions of spin-labeled SCNPs by rigorous spectral simulations of a series of multicomponent EPR-spectra that derive from the nanoinhomogeneities (1) that are due to the single-chain compartmentation in SCNPs and (2) the transformation upon temperature change due to the LCST behavior. These transitions of the SCNPs and their respective polymer precursors can be monitored and understood on the nanoscale by following EPR-spectroscopic parameters like hyperfine couplings that depend on the surrounding solvent molecules or Heisenberg spin exchange between small molecule spin probes or covalently attached spin labels in the nanocompartments. In particular, for one SCNP, we find an interesting behavior that we ascribe to the properties of the nanosized inner core with continuous effects before and jump-like changes after the macroscopic thermal collapse, indicating highly efficient desolvation and compaction upon an increase in temperature and aggregation of individual nanoparticles above the collapse temperature.
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Affiliation(s)
- Andreas H Roos
- Institute of Chemistry, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
| | - Justus F Hoffmann
- Institute of Chemistry, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
| | - Wolfgang H Binder
- Institute of Chemistry, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
| | - Dariush Hinderberger
- Institute of Chemistry, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
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24
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Santos AC, Alves SP, Carvalhão G, Correia NT, Viciosa MT, Farinha JPS. Phase diagrams of temperature-responsive copolymers p(MEO2MA-co-OEGMA) in water. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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25
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Xiong K, Mitomo H, Su X, Shi Y, Yonamine Y, Sato SI, Ijiro K. Molecular configuration-mediated thermo-responsiveness in oligo(ethylene glycol) derivatives attached on gold nanoparticles. NANOSCALE ADVANCES 2021; 3:3762-3769. [PMID: 36133023 PMCID: PMC9418479 DOI: 10.1039/d1na00187f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 03/25/2021] [Indexed: 05/24/2023]
Abstract
Biomolecular systems actively control their local environment on a sub-nm scale via changes in molecular configuration from their flexible structures and derive emergent functions. Although this functional emergence based on local environmental control is attracting a great deal of attention in chemistry, it remains challenging to realize this artificially. Herein, we report the tuning of the thermo-responsive properties of oligo(ethylene glycol) (OEG) derivatives attached on gold nanoparticles via local environmental control not only by the hydrophobic moiety at their terminus but also by their molecular configuration. OEG-attached alkane thiol-modified AuNPs showed thermo-responsive assembly/disassembly in water through the hydration/dehydration of the OEG portions in a manner dependent both on the hydrophobicity at their terminus and the surface curvature of the core nanoparticles. Further, the assembly temperature (T A) was also tuned by ligand mixing with a non-thermo-responsive ligand with a shorter OEG length. Molecular dynamics simulations show that the distribution of the hydrophobic terminus in the normal direction along the gold surface varied in accordance with the surface curvature, indicating variations in molecular configuration. It is expected that a bent configuration could accelerate the thermo-responsiveness of OEG by allowing them greater accessibility to the hydrophobic terminus. Experimental and simulation results support the notion that local OEG density tuning by surface curvature or ligand mixing with a different OEG length leads to different degrees of accessibility to the hydrophobic terminus via changes in molecular configuration, promoting local environmental control-directed assembly temperature tuning.
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Affiliation(s)
- Kun Xiong
- Graduate School of Life Sciences, Hokkaido University Kita 10, Nishi 8, Kita-Ku Sapporo 060-0810 Japan
| | - Hideyuki Mitomo
- Research Institute for Electronic Science, Hokkaido University Kita 21, Nishi 10, Kita-Ku Sapporo 001-0021 Japan
- Global Institution for Collaborative Research and Education, Hokkaido University Kita 21, Nishi 11, Kita-Ku Sapporo 001-0021 Japan
| | - Xueming Su
- Graduate School of Chemical Engineering and Sciences, Hokkaido University Kita 13, Nishi 8, Kita-ku Sapporo 060-8628 Japan
| | - Yier Shi
- Graduate School of Life Sciences, Hokkaido University Kita 10, Nishi 8, Kita-Ku Sapporo 060-0810 Japan
| | - Yusuke Yonamine
- Research Institute for Electronic Science, Hokkaido University Kita 21, Nishi 10, Kita-Ku Sapporo 001-0021 Japan
- Global Institution for Collaborative Research and Education, Hokkaido University Kita 21, Nishi 11, Kita-Ku Sapporo 001-0021 Japan
| | - Shin-Ichiro Sato
- Graduate School of Chemical Engineering and Sciences, Hokkaido University Kita 13, Nishi 8, Kita-ku Sapporo 060-8628 Japan
- Faculty of Engineering, Hokkaido University Kita 13, Nishi 8, Kita-ku Sapporo 060-8628 Japan
| | - Kuniharu Ijiro
- Research Institute for Electronic Science, Hokkaido University Kita 21, Nishi 10, Kita-Ku Sapporo 001-0021 Japan
- Global Institution for Collaborative Research and Education, Hokkaido University Kita 21, Nishi 11, Kita-Ku Sapporo 001-0021 Japan
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26
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Schweigerdt A, Heinen S, Stöbener DD, Weinhart M. Grafting Density-Dependent Phase Transition Mechanism of Thermoresponsive Poly(glycidyl ether) Brushes: A Comprehensive QCM-D Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7087-7096. [PMID: 34077209 DOI: 10.1021/acs.langmuir.1c00695] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thermoresponsive coatings that exhibit "switchable" protein- and cell-adhesive properties are frequently used for the fabrication of cell sheets. Among other architectures, polymer brush coatings have shown to be especially viable due to their distinct phase transition behavior, which can be tailored via a manifold of adjustable brush characteristics, such as the (co)monomer composition, polymer chain length, and grafting density. Brush coatings based on poly(glycidyl ether)s (PGEs) have shown to efficiently mediate cell sheet fabrication when tethered to various tissue culture substrates. Herein, we report the phase transition of self-assembled PGE brushes with respect to polymer molecular weight (M: 10 and 22 kDa) and grafting density (0.07-0.5 chains nm-2) on gold model substrates studied by quasi-static QCM-D temperature ramp measurements. The brush grafting density can be tuned via the applied grafting conditions, and all brushes investigated feature broad phase transition regimes (ΔT ∼15 °C) with volume phase transition temperatures (VPTTs) close to the cloud point temperatures (CPTs) of the PGEs in solution. We further demonstrate that brush coatings with a low grafting density (0.07-0.12 chains nm-2) exhibit a continuous brush-to-mushroom transition, whereas brushes with medium grafting densities (0.3-0.5 chains nm-2) undergo a brush-to-brush transition comprising vertical phase separation during the phase transition progress. These insights help to understand the transition behavior of thin, thermoresponsive brushes prepared via grafting-to strategies and contribute to their rational design for improved functional surfaces.
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Affiliation(s)
- Alexander Schweigerdt
- Institute of Chemistry and Biochemistry, Freie Universitaet Berlin, Takustr. 3, Berlin 14195, Germany
| | - Silke Heinen
- Institute of Chemistry and Biochemistry, Freie Universitaet Berlin, Takustr. 3, Berlin 14195, Germany
| | - Daniel D Stöbener
- Institute of Chemistry and Biochemistry, Freie Universitaet Berlin, Takustr. 3, Berlin 14195, Germany
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universitaet Hannover, Callinstr. 3A, Hannover 30167, Germany
| | - Marie Weinhart
- Institute of Chemistry and Biochemistry, Freie Universitaet Berlin, Takustr. 3, Berlin 14195, Germany
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universitaet Hannover, Callinstr. 3A, Hannover 30167, Germany
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27
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Choi H, Schulte A, Müller M, Park M, Jo S, Schönherr H. Drug Release from Thermo-Responsive Polymer Brush Coatings to Control Bacterial Colonization and Biofilm Growth on Titanium Implants. Adv Healthc Mater 2021; 10:e2100069. [PMID: 33951320 DOI: 10.1002/adhm.202100069] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/05/2021] [Indexed: 02/05/2023]
Abstract
Despite decades of biomedical advances, the colonization of implant devices with bacterial biofilms is still a leading cause of implant failure. Clearly, new strategies and materials that suppress both initial and later stage bacterial colonization are required in this context. Ideal would be the implementation of a bactericidal functionality in the implants that is temporally and spatially triggered in an autonomous fashion at the infection site. Herein, the fabrication and validation of functional titanium-based implants with triggered antibiotic release function afforded via an intelligent polymer coating is reported. In particular, thermo-responsive poly(di(ethylene glycol) methyl ether methacrylate) (PDEGMA) brushes on titanium implants synthesized via a surface-initiated atom transfer radical polymerization with activators regenerated through the electron transfer technique (ARGET ATRP) allows for a controlled and thermally triggered release of the antibiotic levofloxacin at the wound site. Antibiotic loaded brushes are investigated as a function of thickness, loading capacity for antibiotics, and temperature. At temperatures of the infection site >37 °C the lower critical solution temperature behavior of the brushes afforded the triggered release. Hence, in addition to the known antifouling effects, the PDEGMA coating ensured enhanced bactericidal effects, as demonstrated in initial in vivo tests with rodents infected with Staphylococcus aureus.
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Affiliation(s)
- Hongsuh Choi
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ) Department of Chemistry and Biology School of Science and Technology University of Siegen Adolf‐Reichwein‐Str. 2 Siegen 57076 Germany
| | - Anna Schulte
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ) Department of Chemistry and Biology School of Science and Technology University of Siegen Adolf‐Reichwein‐Str. 2 Siegen 57076 Germany
| | - Mareike Müller
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ) Department of Chemistry and Biology School of Science and Technology University of Siegen Adolf‐Reichwein‐Str. 2 Siegen 57076 Germany
| | - Mineon Park
- Seoul National University Hospital Biomedical Research Institute Seoul 03080 Republic of Korea
| | - Suenghwan Jo
- Department of Orthopaedic Surgery School of Medicine Chosun University 365 Pilmundaero Gwangju 61453 Republic of Korea
| | - Holger Schönherr
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ) Department of Chemistry and Biology School of Science and Technology University of Siegen Adolf‐Reichwein‐Str. 2 Siegen 57076 Germany
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28
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Synthesis, self-assembly and thermoresponsive behavior of Poly(lactide-co-glycolide)-b-Poly(ethylene glycol)-b-Poly(lactide-co-glycolide) copolymer in aqueous solution. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Wang K, Liu Q, Lu G, Zhang Y, Zhou Y, Chen S, Ma Q, Liu G, Zeng Y. Acid-Labile Temperature-Responsive Homopolymers and a Diblock Copolymer Bearing the Pendent Acetal Group. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ke Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Qi Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Ganghui Lu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Yi Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Yuanhong Zhou
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Siqi Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Qian Ma
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Guiyan Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Yongfei Zeng
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
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30
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Zhang L, Zhang D, Yang Y, Zhang Y. Stimuli-Responsive Proteinosomes Based on Biohybrid Shell Cross-Linked Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3950-3959. [PMID: 33751892 DOI: 10.1021/acs.langmuir.1c00202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A new method of stimuli-responsive proteinosome fabrication with the shell cross-linked micelle as a template is reported in this research. A thermoresponsive diblock copolymer poly[di(ethylene glycol) methyl ether methacrylate]-b-poly[poly(ethylene glycol) methyl ether methacrylate-co-pyridyl disulfide methacrylamide] [PDEGMA-b-P(PEGMA-co-PDSMA)] was synthesized and self-assembled into micelles with PDEGMA cores and P(PEGMA-co-PDSMA) shells at the temperature above its lower critical solution temperature (LCST). Reduced bovine serum albumin (BSA) molecules with six thiol groups were used to cross-link the shells of the micelles by reacting with the pendant pyridyl disulfide groups on the P(PEGMA-co-PDSMA) block. At a temperature below the LCST of the polymer, the PDEGMA cores were dissolved in water, affording proteinosomes with a size of about 50 nm and capsule-like structures. The proteinosome was also thermoresponsive with a phase transition temperature at 35 °C. The fabrication of the proteinosome had no obvious influence on the structure and activity of BSA, and BSA retained most of its secondary structure and esterase-like activity. Because the BSA molecules were connected to the polymer chains through disulfide bonds, they could be released upon addition of dithiothreitol. The in vitro cell viability evaluation and the cellular uptake assay demonstrated that the proteinosome showed low toxicity to NIH 3T3 and 4T1 cells and could be internalized into the 4T1 cells.
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Affiliation(s)
- Lixin Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Daowen Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Yongfang Yang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Yue Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
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31
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Sohail M, An H, Choi W, Singh J, Yim K, Kim BH, Park YC, Lee JS, Kim H. Sorption-enhanced thin film composites with metal-organic polyhedral nanocages for CO2 separation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Zhang Y, Zhang D, Wang JT, Zhang X, Yang Y. Fabrication of stimuli-responsive nanogels for protein encapsulation and traceless release without introducing organic solvents, surfactants, or small-molecule cross-linkers. Polym Chem 2021. [DOI: 10.1039/d0py01600d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Stimuli-responsive nanogels were fabricated by reaction of proteins and polymers without using small-organic-molecules. Once the nanogels dissociated, the proteins were released with functional groups, secondary structures, and activities maintained.
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Affiliation(s)
- Yue Zhang
- School of Chemical Engineering and Technology
- Hebei Key Laboratory of Functional Polymers
- Hebei University of Technology
- Tianjin 300130
- China
| | - Daowen Zhang
- School of Chemical Engineering and Technology
- Hebei Key Laboratory of Functional Polymers
- Hebei University of Technology
- Tianjin 300130
- China
| | - Jin-Tao Wang
- Henan Key Laboratory of Rare Earth Functional Materials
- Zhoukou Normal University
- Zhoukou
- China
| | - Xiaojie Zhang
- School of Chemical Engineering and Technology
- Hebei Key Laboratory of Functional Polymers
- Hebei University of Technology
- Tianjin 300130
- China
| | - Yongfang Yang
- School of Chemical Engineering and Technology
- Hebei Key Laboratory of Functional Polymers
- Hebei University of Technology
- Tianjin 300130
- China
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33
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Temperature-sensitive effect of topological polymers: Application of polymer-supported manganese porphyrins in catalytic oxidation of low concentration ferrous iron. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Usman A, Zhang C, Zhao J, Peng H, Kurniawan ND, Fu C, Hill DJT, Whittaker AK. Tuning the thermoresponsive properties of PEG-based fluorinated polymers and stimuli responsive drug release for switchable 19F magnetic resonance imaging. Polym Chem 2021. [DOI: 10.1039/d1py00602a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Switching on of the 19F MRI signal via stimuli-responsive release of hydrophobic drug from PEG-based partly-fluorinated polymers due to change in thermoresponsive properties.
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Affiliation(s)
- Adil Usman
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Jiacheng Zhao
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Hui Peng
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Nyoman D. Kurniawan
- Centre for Advanced Imaging, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Changkui Fu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - David J. T. Hill
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
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35
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Li Q, Constantinou AP, Georgiou TK. A library of thermoresponsive
PEG
‐based methacrylate homopolymers: How do the molar mass and number of ethylene glycol groups affect the cloud point? JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200720] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qian Li
- Department of Materials Imperial College London, Royal School of Mines London UK
| | - Anna P. Constantinou
- Department of Materials Imperial College London, Royal School of Mines London UK
| | - Theoni K. Georgiou
- Department of Materials Imperial College London, Royal School of Mines London UK
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36
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Pires-Oliveira R, Tang J, Percebom AM, Petzhold CL, Tam KC, Loh W. Effect of Molecular Architecture and Composition on the Aggregation Pathways of POEGMA Random Copolymers in Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:15018-15029. [PMID: 33275433 DOI: 10.1021/acs.langmuir.0c02538] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Understanding of the temperature-induced phase transition of poly(oligo(ethylene glycol) methyl ether methacrylate) (POEGMA) random copolymers with varied composition remains largely incomplete. Upon heating they can form either macroscopically phase-separated aggregates or micelles. We examined the effect of polymer architecture by rationally designing and synthesizing various POEGMA copolymer structures via atom transfer radical polymerization using OEGMA monomers of different EO lengths. Micelle formation occurred for copolymers with a small fraction of long side chains counterbalanced by an appropriate number of short side chains, while macroscopic phase separation occurred for other copolymer compositions. In some copolymer compositions and architectures, micelle formation followed by macroscopic phase separation occurred, and the temperature of these phase transitions could be tailored accordingly. This new strategy allows the control over the microstructure and specific transition temperatures enabling, for instance, the preparation of nanocarriers for encapsulating hydrophobic compounds.
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Affiliation(s)
- Rafael Pires-Oliveira
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13084-970, Brazil
- Department of Chemical Engineering and Waterloo Institute of Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Juntao Tang
- Department of Chemical Engineering and Waterloo Institute of Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
| | - Ana Maria Percebom
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro, Gávea, Rio de Janeiro 22541-041, Brazil
| | - Cesar L Petzhold
- Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90040-060, Brazil
| | - Kam C Tam
- Department of Chemical Engineering and Waterloo Institute of Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Watson Loh
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13084-970, Brazil
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37
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Haladjova E, Chrysostomou V, Petrova M, Ugrinova I, Pispas S, Rangelov S. Physicochemical Properties and Biological Performance of Polymethacrylate Based Gene Delivery Vector Systems: Influence of Amino Functionalities. Macromol Biosci 2020; 21:e2000352. [PMID: 33283423 DOI: 10.1002/mabi.202000352] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/13/2020] [Indexed: 02/06/2023]
Abstract
Physicochemical characteristics and biological performance of polyplexes based on two identical copolymers bearing tertiary amino or quaternary ammonium groups are evaluated and compared. Poly(2-(dimethylamino)ethyl methacrylate)-b-poly(oligo(ethylene glycol) methyl ether methacrylate) block copolymer (PDMAEMA-b-POEGMA) is synthesized by reversible addition fragmentation chain transfer polymerization. The tertiary amines of PDMAEMA are converted to quaternary ammonium groups by quaternization with methyl iodide. The two copolymers spontaneously formed well-defined polyplexes with DNA. The size, zeta potential, molar mass, aggregation number, and morphology of the polyplex particles are determined. The parent PDMAEMA-b-POEGMA exhibits larger buffering capacity, whereas the corresponding quaternized copolymer (QPDMAEMA-b-POEGMA) displays stronger binding affinity to DNA, yielding invariably larger in size and molar mass particles bearing greater number of DNA molecules per particle. Experiments revealed that QPDMAEMA-b-POEGMA is more effective in transfecting pEGFP-N1 than the parent copolymer, attributed to the larger size, molar mass, and DNA cargo, as well as to the effective cellular traffic, which dominated over the enhanced ability for endo-lysosomal escape of PDMAEMA-b-POEGMA.
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Affiliation(s)
- Emi Haladjova
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev st. bl.103A, Sofia, 1113, Bulgaria
| | - Varvara Chrysostomou
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vass. Constantinou Ave., Athens, 11635, Greece
| | - Maria Petrova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, Acad. G. Bonchev st. bl.21, Sofia, 1113, Bulgaria
| | - Iva Ugrinova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, Acad. G. Bonchev st. bl.21, Sofia, 1113, Bulgaria
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vass. Constantinou Ave., Athens, 11635, Greece
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev st. bl.103A, Sofia, 1113, Bulgaria
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38
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Kominato Y, Ito K, Sasaoka Y, Ito K. LCST Behaviors of Amphiphilic Cholesterols with an AB 2-type Aryl Ether Dendron Bearing Oligo(ethylene gylcol) Chains at the Outer Periphery. CHEM LETT 2020. [DOI: 10.1246/cl.200492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Yuusuke Kominato
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
| | - Kazuki Ito
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
| | - Yuuki Sasaoka
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
| | - Kazuaki Ito
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
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39
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Naveed KUR, Wang L, Yu H, Teng L, Uddin MA, Fahad S, Ullah RS, Nazir A, Elshaarani T. Synthesis of spin labeled ethylene glycol based polymers and study of their segmental motion. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128528] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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40
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Zuppardi F, Malinconico M, D’Agosto F, D’Ayala GG, Cerruti P. Well-Defined Thermo-Responsive Copolymers Based on Oligo(Ethylene Glycol) Methacrylate and Pentafluorostyrene for the Removal of Organic Dyes from Water. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1779. [PMID: 32911815 PMCID: PMC7558912 DOI: 10.3390/nano10091779] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 02/01/2023]
Abstract
Thermo-responsive copolymers based on oligo(ethylene glycol) methacrylate (OEGMA, Mn = 300 g/mol) and pentafluorostyrene (PFS), coded PFG, were synthesized by RAFT polymerization, using a trithiocarbonate (CTTPC) as controlling agent. Different molar masses were targeted and dispersities lower than 1.51 were obtained. The thermally triggered self-assembly of the resulting PFG copolymers in water was investigated by dynamic light scattering (DLS). The lower critical solution temperature (LCST) slightly increased with the molecular weight in the 26-30 °C temperature range, whereas the sizes of the intermicellar aggregates formed upon self-assembly tended to decrease with increasing molecular weights (ranging from 1415 to 572 nm). The resulting thermally-induced polymer aggregates were then used to encapsulate and remove organic contaminants from water. Nile Red (NR) and Thiazole yellow G (TYG) were employed as hydrophobic and hydrophilic model contaminants, respectively. Experimental results evidenced that higher molecular weight copolymers removed up to 90% of NR from aqueous solution, corresponding to about 10 mg of dye per g of copolymer, regardless of NR concentration. The removal of TYG was lower with respect to NR, decreasing from about 40% to around 20% with TYG concentration. Finally, the copolymers were shown to be potentially recycled and reused in the treatment of contaminated water.
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Affiliation(s)
- Federica Zuppardi
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), 80078 Pozzuoli, Italy; (F.Z.); (M.M.); (P.C.)
| | - Mario Malinconico
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), 80078 Pozzuoli, Italy; (F.Z.); (M.M.); (P.C.)
| | - Franck D’Agosto
- CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), Université Claude Bernard Lyon 1, 69616 Villeurbanne, France;
| | - Giovanna Gomez D’Ayala
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), 80078 Pozzuoli, Italy; (F.Z.); (M.M.); (P.C.)
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), 80078 Pozzuoli, Italy; (F.Z.); (M.M.); (P.C.)
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41
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Kumar S, Binder WH. Peptide-induced RAFT polymerization via an amyloid-β 17-20-based chain transfer agent. SOFT MATTER 2020; 16:6964-6968. [PMID: 32717010 DOI: 10.1039/d0sm01169j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We here describe the synthesis of a novel peptide/polymer-conjugate, embedding the amyloid-β (Aβ) protein core sequence Leu-Val-Phe-Phe (LVFF, Aβ17-20) via RAFT polymerization. Based on a novel chain transfer-agent, the "grafting-from" approach effectively generates the well-defined peptide-polymer conjugates with appreciably high monomer conversion rate, resulting in mechanically stiffer peptide-functional cross-linked polymeric hydrogels.
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Affiliation(s)
- Sonu Kumar
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany. and Department of Applied Sciences (Chemistry), Punjab Engineering College (Deemed to be University), Sector 12, Chandigarh, 160012, India
| | - Wolfgang H Binder
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany.
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42
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Wang K, Liu Q, Liu G, Zeng Y. Novel thermoresponsive homopolymers of poly[oligo(ethylene glycol) (acyloxy) methacrylate]s: LCST-type transition in water and UCST-type transition in alcohols. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122746] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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43
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Yiu A, Simchuk D, Hao J. Facile Synthesis of Novel Thermo‐Responsive Polyvalerolactones with Tunable LCSTs. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Asteria Yiu
- Department of Biochemistry and ChemistryGeorge Fox University 414, N. Meridian St. Newberg OR 97132 USA
| | - Daniel Simchuk
- Department of Biochemistry and ChemistryGeorge Fox University 414, N. Meridian St. Newberg OR 97132 USA
| | - Jing Hao
- Department of Biochemistry and ChemistryGeorge Fox University 414, N. Meridian St. Newberg OR 97132 USA
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44
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Oh J, Hong J, Khan A. Ethylene glycol-rich thermosensitive poly(ß-hydroxyl amine)s. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2020. [DOI: 10.1080/10601325.2020.1761259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Junki Oh
- Department of Chemical and Biological Engineering, Korea University, Seoul, Korea
| | - Jeonghui Hong
- Department of Chemical and Biological Engineering, Korea University, Seoul, Korea
| | - Anzar Khan
- Department of Chemical and Biological Engineering, Korea University, Seoul, Korea
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45
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Surface characterization of amphiphilic block copolymers possessing polyisoprene and poly[tri(ethylene glycol) methacrylate] segments and the effect of side chain ω-function on surface energy. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122257] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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46
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Koseki Y, Murayama R, Fujiwara W, Kimata M, Ito K. LCST Behaviors of Amphiphilic Pyridine Derivatives with Oligo(ethylene glycol) Chains. CHEM LETT 2020. [DOI: 10.1246/cl.190835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yugo Koseki
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
| | - Ryota Murayama
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
| | - Wataru Fujiwara
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
| | - Mitsumasa Kimata
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
| | - Kazuaki Ito
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jhonan, Yonezawa, Yamagata 992-8510, Japan
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47
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Konefał R, Spěváček J, Mužíková G, Laga R. Thermoresponsive behavior of poly(DEGMA)-based copolymers. NMR and dynamic light scattering study of aqueous solutions. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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48
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Naya M, Kokado K, Landenberger KB, Kanaoka S, Aoshima S, Sada K. Supramolecularly Designed Thermoresponsive Polymers in Different Polymer Backbones. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900455] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Masami Naya
- Graduate School of Chemical Sciences and Engineering Hokkaido University Kita 10 Nishi 8, Kita‐ku Sapporo Hokkaido 060–0810 Japan
| | - Kenta Kokado
- Graduate School of Chemical Sciences and Engineering Hokkaido University Kita 10 Nishi 8, Kita‐ku Sapporo Hokkaido 060–0810 Japan
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita‐ku Sapporo Hokkaido 060–0810 Japan
| | - Kira Beth Landenberger
- Department of Macromolecular Science Graduate School of Science Osaka University Toyonaka Osaka 560‐0043 Japan
| | - Shokyoku Kanaoka
- Department of Macromolecular Science Graduate School of Science Osaka University Toyonaka Osaka 560‐0043 Japan
| | - Sadahito Aoshima
- Department of Macromolecular Science Graduate School of Science Osaka University Toyonaka Osaka 560‐0043 Japan
| | - Kazuki Sada
- Graduate School of Chemical Sciences and Engineering Hokkaido University Kita 10 Nishi 8, Kita‐ku Sapporo Hokkaido 060–0810 Japan
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita‐ku Sapporo Hokkaido 060–0810 Japan
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49
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Bozorg M, Hankiewicz B, Abetz V. Solubility behaviour of random and gradient copolymers of di- and oligo(ethylene oxide) methacrylate in water: effect of various additives. SOFT MATTER 2020; 16:1066-1081. [PMID: 31859702 DOI: 10.1039/c9sm02032b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Poly[oligo(ethylene oxide)] based gradient and random copolymers with different compositions are synthesized via Cu-based atom transfer radical polymerization. The solubility behavior of these copolymers in pure water and in the presence of different salts, surfactants and ethanol is investigated. According to dynamic light scattering results, the lower critical solution temperature (LCST) depends on the structure of the copolymer and changes slightly in the presence of additives. Good cosolvents like ethanol can increase the LCST through dissolving the collapsed copolymer chains to some extent. The same effect is observed for surfactants that make the copolymer solution more stable by preventing aggregation. Above a certain concentration of surfactant, depending on the copolymer structure, the solution is stable at all temperatures (no LCST). The effect of salts on the solubility of the copolymers follows the Hofmeister series and it is related linearly to the salt concentration. Based on their affinity to the copolymer, the salts can increase or decrease the LCST. There is a considerable difference in phase transition changes for gradient or random copolymers after salt addition. While both copolymers show a two-step phase transition in the presence of different salts, the changes in the hydrodynamic radius and normalized scattering intensity are rather broad for random compared to gradient copolymers. Contrary to what was expected, varying the cations has no distinguishable effect on the LCST for both copolymers. All chlorides decrease the LCST. This decrease is almost the same for gradient copolymers and fluctuates for random copolymers.
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Affiliation(s)
- Maryam Bozorg
- Institute of Physical Chemistry, Universität Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Birgit Hankiewicz
- Institute of Physical Chemistry, Universität Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Volker Abetz
- Institute of Physical Chemistry, Universität Hamburg, Grindelallee 117, 20146 Hamburg, Germany and Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany.
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Stanojkovic J, Oh J, Khan A, Stuparu MC. Synthesis of thermoresponsive oligo(ethylene glycol) polymers through radical ring-opening polymerization of vinylcyclopropane monomers. RSC Adv 2020; 10:2359-2363. [PMID: 35494601 PMCID: PMC9048585 DOI: 10.1039/c9ra10721e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 01/06/2020] [Indexed: 01/20/2023] Open
Abstract
Polyvinylcyclopropanes are an old class of polymers typically known for their low polymerization-induced shrinkage properties. In this work, we show that they are capable of exhibiting a thermally triggered aggregation process in aqueous solutions. The phase transition is sharp, tunable within the temperature range of 25-46 °C, and relatively insensitive to environmental conditions. It is anticipated that this preliminary study will shine new light on polyvinylcyclopropanes and lead to new avenues in their studies and future application.
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Affiliation(s)
- Jovana Stanojkovic
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University 21-Nanyang Link 637371 Singapore
| | - Junki Oh
- Department of Chemical and Biological Engineering, Korea University Seoul 02841 South Korea
| | - Anzar Khan
- Department of Chemical and Biological Engineering, Korea University Seoul 02841 South Korea
| | - Mihaiela C Stuparu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University 21-Nanyang Link 637371 Singapore
- School of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue 639798 Singapore
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