1
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Niezabitowska E, Gray DM, Gallardo-Toledo E, Owen A, Rannard SP, McDonald TO. Understanding the Degradation of Core-Shell Nanogels Using Asymmetrical Flow Field Flow Fractionation. J Funct Biomater 2023; 14:346. [PMID: 37504841 PMCID: PMC10381601 DOI: 10.3390/jfb14070346] [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: 05/26/2023] [Revised: 06/16/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
Nanogels are candidates for biomedical applications, and core-shell nanogels offer the potential to tune thermoresponsive behaviour with the capacity for extensive degradation. These properties were achieved by the combination of a core of poly(N-isopropylmethacrylamide) and a shell of poly(N-isopropylacrylamide), both crosslinked with the degradable crosslinker N,N'-bis(acryloyl)cystamine. In this work, the degradation behaviour of these nanogels was characterised using asymmetric flow field flow fractionation coupled with multi-angle and dynamic light scattering. By monitoring the degradation products of the nanogels in real-time, it was possible to identify three distinct stages of degradation: nanogel swelling, nanogel fragmentation, and nanogel fragment degradation. The results indicate that the core-shell nanogels degrade slower than their non-core-shell counterparts, possibly due to a higher degree of self-crosslinking reactions occurring in the shell. The majority of the degradation products had molecule weights below 10 kDa, which suggests that they may be cleared through the kidneys. This study provides important insights into the design and characterisation of degradable nanogels for biomedical applications, highlighting the need for accurate characterisation techniques to measure the potential biological impact of nanogel degradation products.
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Affiliation(s)
- Edyta Niezabitowska
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Dominic M Gray
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Eduardo Gallardo-Toledo
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L3 5TR, UK
- Centre of Excellence in Long-Acting Therapeutics (CELT), University of Liverpool, Liverpool L3 5TR, UK
| | - Andrew Owen
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L3 5TR, UK
- Centre of Excellence in Long-Acting Therapeutics (CELT), University of Liverpool, Liverpool L3 5TR, UK
| | - Steve P Rannard
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
- Materials Innovation Factory, University of Liverpool, Liverpool L7 3NY, UK
| | - Tom O McDonald
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
- Department of Materials, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
- Henry Royce Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
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2
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Poly(2-oxazoline)-derived star-shaped polymers as potential materials for biomedical applications: A review. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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3
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Synthesis and thermoresponsive behavior of double hydrophilic graft copolymer based on poly(2-methyl-2-oxazoline) and poly(2-ethyl-2-oxazoline). Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Liu Y, Li B, Zhang H, Liu Y, Xie P. Detection of Microcystin-LR in the Cells and Natural Lake Water Samples by A Unique Fluorescence-Based Method. J Fluoresc 2022; 32:505-519. [PMID: 34981282 DOI: 10.1007/s10895-021-02882-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/27/2021] [Indexed: 11/29/2022]
Abstract
Microcystin-LR (MC-LR) is widely distributed in natural lakes and could strongly inhibit protein phosphatase activity; it is also a potent liver tumor promoter. Over the last two decades, tremendous efforts have been devoted to enhance the detection of MC-LR in water samples. However, the traditional method is complex and costly, and achieving the fast, sensitive, and accurate determination of MC-LR in the cells and natural lakes by using fluorescence signal changes is fairly difficult. Our work explores novel fluorescent probes that are capable of concurrently analyzing and detecting MC-LR in the cells and water. In this study, we introduce, for the first time, 5-AF and 6-AF as small-molecule fluorescent probes suitable for MC-LR detection in the cells and water samples based on fluorescence signal changes. We titrated 5-AF and 6-AF with MC-LR in pure water, scanned the fluorescence of the sample, and then obtained the equation the fluorescence intensity versus MC-LR concentration curve. MC-LR in lake water samples was crudely purified, and then 5-AF was added to measure its fluorescence peak. The fluorescence intensity of 5-AF is significantly enhanced with increasing MC-LR concentration. This enhancement trend is stable and could be mathematically modeled. We also comprehensively analyzed the mechanism and recognition principle of the probe response to MC-LR in natural lake water. Moreover, we believe that 5-AF may be capable of detecting exogenous MC-LR in cells. The results of this study reveal that these unique fluorescent probes may be applied to construct near-infrared fluorescent probes that could detect MC-LR levels in vivo.
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Affiliation(s)
- Yipeng Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, P.R. China
| | - Bingyan Li
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, P.R. China
| | - Huixia Zhang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, P.R. China
| | - Yong Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, P.R. China.
| | - Ping Xie
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, PR China.
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5
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Nishimura T, Sumi N, Koda Y, Sasaki Y, Akiyoshi K. Intrinsically permeable polymer vesicles based on carbohydrate-conjugated poly(2-oxazoline)s synthesized using a carbohydrate-based initiator system. Polym Chem 2019. [DOI: 10.1039/c8py01502c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A thermo-responsive poly(n-propyl oxazoline) block was employed as the hydrophobic segment in an amphiphilic glyco polymer. This approach affords intrinsically permeable polymer vesicles for water-soluble compounds.
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Affiliation(s)
- Tomoki Nishimura
- Department of Polymer Chemistry
- Graduate school of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Naoki Sumi
- Department of Polymer Chemistry
- Graduate school of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yuta Koda
- Department of Polymer Chemistry
- Graduate school of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yoshihiro Sasaki
- Department of Polymer Chemistry
- Graduate school of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry
- Graduate school of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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6
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Qi X, Yuan Y, Zhang J, Bulte JWM, Dong W. Oral Administration of Salecan-Based Hydrogels for Controlled Insulin Delivery. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:10479-10489. [PMID: 30240201 PMCID: PMC7764162 DOI: 10.1021/acs.jafc.8b02879] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
We present an improved type of food gum (salecan) based hydrogels for oral delivery of insulin. Structural hydrogel formation was assessed with Fourier transform infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction. We found that the hydrogel modulus, morphology, and swelling properties can be controlled by varying the salecan dose during hydrogel formation. Insulin was introduced into the hydrogel using a swelling-diffusion approach and then further used a drug prototype. In vitro insulin release profiles demonstrated that the release of entrapped insulin was suppressed in acidic conditions but markedly increased at neutral pH. Cell viability and toxicity tests revealed that the salecan hydrogel constructs were biocompatible. Oral administration of insulin-loaded salecan hydrogels in diabetic rats resulted in a sustained decrease of fasting plasma glucose levels over 6 h postadministration. For nondiabetic animals, the relative pharmacological bioavailability of insulin was significantly larger (6.24%, p < 0.05) for insulin-loaded hydrogels compared to free insulin. These results encourage further development of salecan-based hydrogels as vehicles for controlled insulin delivery following oral administration.
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Affiliation(s)
- Xiaoliang Qi
- Russell H. Morgan Dept. of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Yue Yuan
- Russell H. Morgan Dept. of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Jeff W. M. Bulte
- Russell H. Morgan Dept. of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland 21205, United States
- Department of Chemical & Biomolecular Engineering, The Johns Hopkins University Whiting School of Engineering, Baltimore, Maryland 21218, United States
| | - Wei Dong
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
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7
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Lorson T, Lübtow MM, Wegener E, Haider MS, Borova S, Nahm D, Jordan R, Sokolski-Papkov M, Kabanov AV, Luxenhofer R. Poly(2-oxazoline)s based biomaterials: A comprehensive and critical update. Biomaterials 2018; 178:204-280. [DOI: 10.1016/j.biomaterials.2018.05.022] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 02/06/2023]
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8
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Li T, Kumru B, Al Nakeeb N, Willersinn J, Schmidt BVKJ. Thermoadaptive Supramolecular α-Cyclodextrin Crystallization-Based Hydrogels via Double Hydrophilic Block Copolymer Templating. Polymers (Basel) 2018; 10:E576. [PMID: 30966610 PMCID: PMC6404023 DOI: 10.3390/polym10060576] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/16/2018] [Accepted: 05/21/2018] [Indexed: 12/14/2022] Open
Abstract
Supramolecular hydrogels play a prominent role in contemporary research of hydrophilic polymers. Especially, hydrogels based on α-cyclodextrin/poly(ethylene glycol) (α-CD/PEG) complexation and crystal formation are studied frequently. Here, the effect of double hydrophilic block copolymers (DHBCs) on α-CD/PEG hydrogel properties is investigated. Therefore, a novel DHBC, namely poly(N-vinylpyrrolidone)-b-poly(oligo ethylene glycol methacrylate) (PVP-b-POEGMA), was synthesized via a combination of reversible deactivation radical polymerization and modular conjugation methods. In the next step, hydrogel formation was studied after α-CD addition. Interestingly, DHBC-based hydrogels showed a significant response to thermal history. Heating of the gels to different temperatures led to different mechanical properties after cooling to ambient temperature, i.e., gels with mechanical properties similar to the initial gels or weak flowing gels were obtained. Thus, the hydrogels showed thermoadaptive behavior, which might be an interesting property for future applications in sensing.
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Affiliation(s)
- Tingting Li
- Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Baris Kumru
- Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.
| | - Noah Al Nakeeb
- Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.
| | - Jochen Willersinn
- Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.
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9
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Hoelzer D, Leiske MN, Hartlieb M, Bus T, Pretzel D, Hoeppener S, Kempe K, Thierbach R, Schubert US. Tumor targeting with pH-responsive poly(2-oxazoline)-based nanogels for metronomic doxorubicin treatment. Oncotarget 2018; 9:22316-22331. [PMID: 29854280 PMCID: PMC5976466 DOI: 10.18632/oncotarget.24806] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 02/24/2018] [Indexed: 12/18/2022] Open
Abstract
The synthesis of a new nanogel drug carrier system loaded with the anti-cancer drug doxorubicin (DOX) is presented. Poly(2-oxazoline) (POx) based nanogels from block copolymer micelles were cross-linked and covalently loaded with DOX using pH-sensitive Schiff' base chemistry. DOX loaded POx based nanogels showed a toxicity profile comparable to the free drug, while unloaded drug carriers showed no toxicity. Hemolytic activity and erythrocyte aggregation of the drug delivery system was found to be low and cellular uptake was investigated by flow cytometry and fluorescence microscopy. While the amount of internalized drug was enhanced when incorporated into a nanogel, the release of the drug into the nucleus was delayed. For in vivo investigations the nanogel drug delivery system was combined with a metronomic treatment of DOX. Low doses of free DOX were compared to equivalent DOX loaded nanogels in a xenograft mouse model. Treatment with POx based nanogels revealed a significant tumor growth inhibition and increase in survival time, while pure DOX alone had no effect on tumor progression. The biodistribution was investigated by microscopy of organs of mice and revealed a predominant localization of DOX within tumorous tissue. Thus, the POx based nanogel system revealed a therapeutic efficiency despite the low DOX concentrations and could be a promising strategy to control tumor growth with fewer side effects.
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Affiliation(s)
- Doerte Hoelzer
- Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Meike N. Leiske
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Matthias Hartlieb
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Current address: Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, 14513 Teltow, Germany
| | - Tanja Bus
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
| | - David Pretzel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Kristian Kempe
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Current address: Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - René Thierbach
- Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
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10
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Kempe K. Chain and Step Growth Polymerizations of Cyclic Imino Ethers: From Poly(2‐oxazoline)s to Poly(ester amide)s. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kristian Kempe
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology Monash Institute of Pharmaceutical Sciences Monash University Parkville VIC 3052 Australia
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11
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Hartlieb M, Bus T, Kübel J, Pretzel D, Hoeppener S, Leiske MN, Kempe K, Dietzek B, Schubert US. Tailoring Cellular Uptake and Fluorescence of Poly(2-oxazoline)-Based Nanogels. Bioconjug Chem 2017; 28:1229-1235. [DOI: 10.1021/acs.bioconjchem.7b00067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthias Hartlieb
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Tanja Bus
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Joachim Kübel
- Institute
of Physical Chemistry (IPC) and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - David Pretzel
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Stephanie Hoeppener
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Meike N. Leiske
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Kristian Kempe
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Benjamin Dietzek
- Institute
of Physical Chemistry (IPC) and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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12
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13
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Zschoche S, Rueda JC, Binner M, Komber H, Janke A, Appelhans D, Voit B. Temperature- and pH-dependent aggregation behavior of hydrophilic dual-sensitive poly(2-oxazoline)s block copolymers as latent amphiphilic macromolecules. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.11.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Ying WB, Kim S, Lee MW, Go NY, Jung H, Ryu SG, Lee B, Lee KJ. Toward a detoxification fabric against nerve gas agents: guanidine-functionalized poly[2-(3-butenyl)-2-oxazoline]/Nylon-6,6 nanofibers. RSC Adv 2017. [DOI: 10.1039/c7ra01278k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A novel guanidine-functionalized polymer, poly[2-(3-butenyl)-2-oxazoline] (PBuOxz), has been co-electrospun with Nylon-6,6 to form fibers that could be used for the decontamination of chemical warfare agents (CWAs).
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Affiliation(s)
- Wu Bin Ying
- Department of Applied Chemical Engineering
- College of Engineering
- Chungnam National University
- Daejeon 305–764
- Korea
| | - Sohee Kim
- Department of Applied Chemical Engineering
- College of Engineering
- Chungnam National University
- Daejeon 305–764
- Korea
| | - Min Woo Lee
- Department of Applied Chemical Engineering
- College of Engineering
- Chungnam National University
- Daejeon 305–764
- Korea
| | - Na Yeong Go
- Department of Applied Chemical Engineering
- College of Engineering
- Chungnam National University
- Daejeon 305–764
- Korea
| | | | - Sam Gon Ryu
- Agency for Defense Development (ADD)
- Daejeon
- Korea
| | - Bumjae Lee
- Department of Applied Chemical Engineering
- College of Engineering
- Chungnam National University
- Daejeon 305–764
- Korea
| | - Kyung Jin Lee
- Department of Applied Chemical Engineering
- College of Engineering
- Chungnam National University
- Daejeon 305–764
- Korea
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15
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Hartlieb M, Floyd T, Cook AB, Sanchez-Cano C, Catrouillet S, Burns JA, Perrier S. Well-defined hyperstar copolymers based on a thiol–yne hyperbranched core and a poly(2-oxazoline) shell for biomedical applications. Polym Chem 2017. [DOI: 10.1039/c7py00303j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Well defined ‘hyperstar’ copolymers were synthesized by combining hyperbranched polymers produced by thiol–yne chemistry with poly(oxazoline)s.
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Affiliation(s)
| | - Thomas Floyd
- Department of Chemistry
- The University of Warwick
- Coventry CV4 7AL
- UK
| | | | | | | | - James A. Burns
- Syngenta
- Jealott's Hill International Research Centre
- Berkshire
- UK
| | - Sébastien Perrier
- Department of Chemistry
- The University of Warwick
- Coventry CV4 7AL
- UK
- Faculty of Pharmacy and Pharmaceutical Sciences
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16
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Tang L, Chen X, Wang L, Qu J. Metallo-supramolecular hydrogels based on amphiphilic polymers bearing a hydrophobic Schiff base ligand with rapid self-healing and multi-stimuli responsive properties. Polym Chem 2017. [DOI: 10.1039/c7py00739f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metallo-supramolecular hydrogels with hydrophobic ligands were fabricated by a versatile strategy.
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Affiliation(s)
- Liuyan Tang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Xiuli Chen
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Lei Wang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Jinqing Qu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
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17
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Leiske MN, Hartlieb M, Sobotta FH, Paulus RM, Görls H, Bellstedt P, Schubert US. Cationic ring-opening polymerization of protected oxazolidine imines resulting in gradient copolymers of poly(2-oxazoline) and poly(urea). Polym Chem 2016. [DOI: 10.1039/c6py00785f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Synthesis of well-defined poly(urea)-poly(2-ethyl-2-oxazoline) gradient copolymers.
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Affiliation(s)
- Meike N. Leiske
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Matthias Hartlieb
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Fabian H. Sobotta
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Renzo M. Paulus
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Peter Bellstedt
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- Jena
- Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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18
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Cui Y, Jiang X, Feng C, Gu G, Xu J, Huang X. First double hydrophilic graft copolymer bearing a poly(2-hydroxylethyl acrylate) backbone synthesized by sequential RAFT polymerization and SET-LRP. Polym Chem 2016. [DOI: 10.1039/c6py00489j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This article reports the first synthesis of well-defined double hydrophilic graft copolymers with a PHEA backbone, by the combination of RAFT polymerization, SET-LRP, and a grafting-from strategy.
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Affiliation(s)
- Yinan Cui
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Xiuyu Jiang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Guangxin Gu
- Department of Materials Science
- Fudan University
- Shanghai 200433
- People's Republic of China
| | - Jie Xu
- Department of Materials Science
- Fudan University
- Shanghai 200433
- People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
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19
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Zeng Z, She Y, Peng Z, Wei J, He X. Enzyme-mediated in situ formation of pH-sensitive nanogels for proteins delivery. RSC Adv 2016. [DOI: 10.1039/c5ra25133h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
pH-Sensitive (PEG-b-P(LGA-g-Tyr)) nanogels were fabricated through the enzyme-mediated crosslinking reaction and used to load FITC-BSA for intracellular protein delivery.
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Affiliation(s)
- Zhipeng Zeng
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Yingqi She
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Zhiping Peng
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Junchao Wei
- College of Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Xiaohui He
- School of Materials Science and Engineering
- Nanchang University
- Nanchang 330031
- China
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