1
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Wang F, Pizzi D, Lu Y, He K, Thurecht KJ, Hill MR, Marriott PJ, Banaszak Holl MM, Kempe K, Wang H. A Homochiral Poly(2-oxazoline)-based Membrane for Efficient Enantioselective Separation. Angew Chem Int Ed Engl 2023; 62:e202212139. [PMID: 36577702 PMCID: PMC10107185 DOI: 10.1002/anie.202212139] [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: 08/16/2022] [Revised: 12/18/2022] [Accepted: 12/28/2022] [Indexed: 12/30/2022]
Abstract
Chiral separation membranes have shown great potential for the efficient separation of racemic mixtures into enantiopure components for many applications, such as in the food and pharmaceutical industries; however, scalable fabrication of membranes with both high enantioselectivity and flux remains a challenge. Herein, enantiopure S-poly(2,4-dimethyl-2-oxazoline) (S-PdMeOx) macromonomers were synthesized and used to prepare a new type of enantioselective membrane consisting of a chiral S-PdMeOx network scaffolded by graphene oxide (GO) nanosheets. The S-PdMeOx-based membrane showed a near-quantitative enantiomeric excess (ee) (98.3±1.7 %) of S-(-)-limonene over R-(+)-limonene and a flux of 0.32 mmol m-2 h-1 . This work demonstrates the potential of homochiral poly(2,4-disubstituted-2-oxazoline)s in chiral discrimination and provides a new route to the development of highly efficient enantioselective membranes using synthetic homochiral polymer networks.
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Affiliation(s)
- Fanmengjing Wang
- Department of Chemical and Biological EngineeringMonash University3800ClaytonVictoriaAustralia
| | - David Pizzi
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University3052ParkvilleVICAustralia
| | - Yizhihao Lu
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial ScienceTechnical Institute of Physics and ChemistryChinese Academy of Sciences100190BeijingP. R. China
| | - Kaiqiang He
- Department of Chemical and Biological EngineeringMonash University3800ClaytonVictoriaAustralia
| | - Kristofer J. Thurecht
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and NanotechnologyARC Training Centre for Innovation in Biomedical Imaging TechnologyThe University of Queensland4072St. LuciaQLDAustralia
| | - Matthew R. Hill
- Department of Chemical and Biological EngineeringMonash University3800ClaytonVictoriaAustralia
| | | | - Mark M. Banaszak Holl
- Department of Chemical and Biological EngineeringMonash University3800ClaytonVictoriaAustralia
| | - Kristian Kempe
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University3052ParkvilleVICAustralia
- Materials Science and EngineeringMonash University3800ClaytonVictoriaAustralia
| | - Huanting Wang
- Department of Chemical and Biological EngineeringMonash University3800ClaytonVictoriaAustralia
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2
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Pizzi D, Humphries J, Morrow JP, Mahmoud AM, Fletcher NL, Sonderegger SE, Bell CA, Thurecht KJ, Kempe K. Probing the Biocompatibility and Immune Cell Association of Chiral, Water-Soluble, Bottlebrush Poly(2-oxazoline)s. Biomacromolecules 2023; 24:246-257. [PMID: 36464844 DOI: 10.1021/acs.biomac.2c01105] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Poly(2-oxazoline)s (POx) have received substantial attention as poly(ethylene glycol) (PEG) alternatives in the biomedical field due to their biocompatibility, high functionality, and ease of synthesis. While POx have demonstrated strong potential as biomaterial constituents, the larger family of poly(cyclic imino ether)s (PCIE) to which POx belongs remains widely underexplored. One highly interesting sub-class of PCIE is poly(2,4-disubstituted-2-oxazoline)s (PdOx), which bear an additional substituent on the backbone of the polymers' repeating units. This allows fine-tuning of the hydrophilic/hydrophobic balance and renders the PdOx chiral when enantiopure 2-oxazoline monomers are used. Herein, we synthesize new water-soluble (R-/S-/RS-) poly(oligo(2-ethyl-4-methyl-2-oxazoline) methacrylate) (P(OEtMeOxMA)) bottlebrushes and compare them to well-established PEtOx- and PEG-based bottlebrush controls in terms of their physical properties, hydrophilicity, and biological behavior. We reveal that the P(OEtMeOxMA) bottlebrushes show a lower critical solution temperature behavior at a physiologically relevant temperature (∼44 °C) and that the enantiopure (R-/S-) variants display a chiral secondary structure. Importantly, we demonstrate the biocompatibility of the chiral P(OEtMeOxMA) bottlebrushes through cellular association and mouse biodistribution studies and show that these systems display higher immune cell association and organ accumulation than the two control polymers. These novel materials possess properties that hold promise for applications in the field of nanomedicine and may be beneficial carriers for therapeutics that require enhanced cellular association and immune cell interaction.
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Affiliation(s)
- David Pizzi
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria3052, Australia
| | - James Humphries
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology, ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queesland4072, Australia
| | - Joshua P Morrow
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria3052, Australia
| | - Ayaat M Mahmoud
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria3052, Australia
| | - Nicholas L Fletcher
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology, ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queesland4072, Australia
| | - Stefan E Sonderegger
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology, ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queesland4072, Australia
| | - Craig A Bell
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology, ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queesland4072, Australia
| | - Kristofer J Thurecht
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology, ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queesland4072, Australia
| | - Kristian Kempe
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria3052, Australia.,Materials Science and Engineering, Monash University, Clayton, Victoria3800, Australia
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3
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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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4
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Kirila TY, Razina AB, Ten’kovtsev AV, Filippov AP. Effect of the Structure of Arms and Way of Their Attachment to Calix[4]arene on Self-Assembly Processes in Aqueous Solutions of Thermoresponsive Star-Shaped Poly(2-alkyl-2-oxazolines) and Poly(2-alkyl-2-oxazines). POLYMER SCIENCE SERIES C 2022. [DOI: 10.1134/s1811238222700102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Morrow JP, Mazrad ZAI, Bush AI, Kempe K. Poly(2-oxazoline) - Ferrostatin-1 drug conjugates inhibit ferroptotic cell death. J Control Release 2022; 350:193-203. [PMID: 35944752 DOI: 10.1016/j.jconrel.2022.08.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 07/15/2022] [Accepted: 08/04/2022] [Indexed: 10/15/2022]
Abstract
Ferroptosis is a form of non-apoptotic iron induced cell death mechanism implicated in neurodegeneration, yet can be ameliorated with potent radical scavengers such as ferrostatin-1 (Fer-1). Currently, Fer-1 suffers from low water solubility, poor biodistribution profile and is unsuitable for clinical application. Fer-1 polymer-drug conjugates (PDCs) for testing as an anti-ferroptosis therapeutic candidate have yet to be described. Here, we report the synthesis and characterization of a library of water-soluble Fer-1 based poly(2-oxazoline)-drug conjugates. The cationic ring opening polymerization (CROP) of water-soluble 2-oxazoline monomers, and a novel protected aromatic aldehyde 2-oxazoline (DPhOx), produced defined copolymers, which after deprotection were available for modification with Fer-1 via reductive amination and Schiff base chemistry. The conjugates were tested for their activity against RSL3-induced ferroptosis in vitro, and first structure-activity relationships were established. Irreversibly conjugated Fer-1 PDCs possessing an arylamine structural motif showed a greatly increased anti-ferroptosis activity compared to reversibly (Schiff base) linked Fer-1. Overall, this work introduces the first active ferrostatin-PDCs and a new highly tuneable poly(2-oxazoline)-based PDC platform, which provides access to next generation polymeric nanomaterials for anti-ferroptosis applications.
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Affiliation(s)
- Joshua P Morrow
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Zihnil A I Mazrad
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Ashley I Bush
- Melbourne Dementia Research Centre, The Florey Institute for Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Kristian Kempe
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia,.
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6
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Mahmoud AM, Nowell CJ, Feeney O, van 't Hag L, Davis TP, Kempe K. Hydrophobicity Regulates the Cellular Interaction of Cyanine5-Labeled Poly(3-hydroxypropionate)-Based Comb Polymers. Biomacromolecules 2022; 23:3560-3571. [PMID: 35921528 DOI: 10.1021/acs.biomac.2c00303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An in-depth understanding of the effect of physicochemical properties of nanocarriers on their cellular uptake and fate is crucial for the development of novel delivery systems. In this study, well-defined hydrophobic carboxylated poly(3-hydroxypropionate)-based comb polymers were synthesized. Two oligo(3-hydroxypropionate) (HPn) of different degrees of polymerization (DP; 5 and 9) bearing α-vinyl end-groups were obtained by an hydrogen transfer polymerization (HTP)-liquid/liquid extraction strategy. 2-Carboxyethyl acrylate (CEA), representing the DP 1 analogue of HPn, was also included in the study. (Macro)monomers were polymerized via reversible addition-fragmentation chain-transfer (RAFT) polymerization and fully characterized by 1H NMR spectroscopy and size exclusion chromatography. All polymers were non-hemolytic and non-cytotoxic against NIH/3T3 cells. Detailed cellular association and uptake studies of Cy5-labeled polymers by flow cytometry and confocal laser scanning microscopy (CLSM) revealed that the carboxylated water-soluble PCEA, the polymer with the shortest side chain, efficiently targets mitochondria. However, increasing the side-chain DP led to a change in the intracellular fate. P(HP5) was trafficked to both mitochondria and lysosomes, while P(HP9) was exclusively found in lysosomes. Importantly, FLIM-FRET investigation of P(HP5) provided initial insight into the mitochondria subcompartment location of Cy5-labeled carboxylated polymers. Moreover, intracellular uptake mechanism studies were performed. Blocking scavenger receptors by dextran sulfate or cooling cells to 4 °C significantly affected the cell association of hydrophobic carboxylated polymers with an insignificant response to membrane-potential inhibitors. In contrast, water-soluble carboxylated polymers' cellular association was substantially inhibited in cells treated with compounds depleting the mitochondrial potential (ΔΨ). Overall, this study highlights hydrophobicity as a valuable means to tune the cellular interaction of carboxylated polymers and thus will inform the design of future drug carriers based on Cy5-modified carboxylated polymers.
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Affiliation(s)
- Ayaat M Mahmoud
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Cameron J Nowell
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Orlagh Feeney
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Leonie van 't Hag
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Thomas P Davis
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.,Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia 4072, Australia
| | - Kristian Kempe
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.,Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
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7
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Smirnova AV, Tenkovtsev AV, Filippov AP. Effect of Annealing at High Temperatures on the Morphology of Aqueous Solutions of Star-Shaped Poly(2-Isopropyl-2-Oxazoline) and Linear Poly(2-Ethyl-5,6-Dihydrooxazine). POLYMER SCIENCE SERIES C 2022. [DOI: 10.1134/s1811238222700072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Dirauf M, Muljajew I, Weber C, Schubert US. Recent advances in degradable synthetic polymers for biomedical applications – Beyond polyesters. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Zia A, Finnegan JR, Morrow JP, Yin W, Jasieniak JJ, Pentzer E, Thickett S, Davis TP, Kempe K. Intrinsic Green Fluorescent Cross-Linked Poly(ester amide)s by Spontaneous Zwitterionic Copolymerization. Biomacromolecules 2021; 22:4794-4804. [PMID: 34623149 DOI: 10.1021/acs.biomac.1c01087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The spontaneous zwitterionic copolymerization (SZWIP) of 2-oxazolines and acrylic acid affords biocompatible but low molecular weight linear N-acylated poly(amino ester)s (NPAEs). Here, we present a facile one-step approach to prepare functional higher molar mass cross-linked NPAEs using 2,2'-bis(2-oxazoline)s (BOx). In the absence of solvent, insoluble free-standing gels were formed from BOx with different length n-alkyl bridging units, which when butylene-bridged BOx was used possessed an inherent green fluorescence, a behavior not previously observed for 2-oxazoline-based polymeric materials. We propose that this surprising polymerization-induced emission can be classified as nontraditional intrinsic luminescence. Solution phase and oil-in-oil emulsion approaches were investigated as means to prepare solution processable fluorescent NPAEs, with both resulting in water dispersible network polymers. The emulsion-derived system was investigated further, revealing pH-responsive intensity of emission and excellent photostability. Residual vinyl groups were shown to be available for modifications without affecting the intrinsic fluorescence. Finally, these systems were shown to be cytocompatible and to function as fluorescent bioimaging agents for in vitro imaging.
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Affiliation(s)
- Aadarash Zia
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology and Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - John R Finnegan
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology and Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Joshua P Morrow
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology and Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Wenping Yin
- Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Jacek J Jasieniak
- Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Emily Pentzer
- Department of Chemistry, Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Stuart Thickett
- School of Natural Sciences, The University of Tasmania, Hobart, TAS 7005, Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology and Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology and Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia.,Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
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10
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Warne NM, Finnegan JR, Feeney OM, Kempe K. Using
2‐isopropyl
‐2‐oxazine to explore the effect of monomer distribution and polymer architecture on the thermoresponsive behavior of copolymers. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210551] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Nicole M. Warne
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology, and Drug Delivery, Disposition and Dynamics Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria Australia
| | - John R. Finnegan
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology, and Drug Delivery, Disposition and Dynamics Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria Australia
| | - Orlagh M. Feeney
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology, and Drug Delivery, Disposition and Dynamics Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology, and Drug Delivery, Disposition and Dynamics Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria Australia
- Materials Science and Engineering Monash University Clayton Victoria Australia
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11
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Xiao W, Xu L, Liu P, Chen Y, Zhang J, Xu J. Hybrid Copolymerization of Ethylene Oxide and tert-Butyl Methacrylate with Organocatalyst. Polymers (Basel) 2021; 13:polym13152546. [PMID: 34372149 PMCID: PMC8347643 DOI: 10.3390/polym13152546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 12/03/2022] Open
Abstract
Hybrid copolymerization of structurally different, reactivity and mechanism distinct monomers (e.g., cyclic and vinyl type monomers) is of great interest and challenge for both academic research and practical application. Herein, ethylene oxide-co-tert-butyl methacrylate-co-poly(ethylene glycol) benzyl methacrylate (EO-co-BMA-co-bPEO), a statistical copolymer was synthesized via hybrid copolymerization of EO and BMA using an uncharged, non-nucleophilic organobase t-BuP4 as the catalyst. Detailed characterizations indicate that hybrid copolymerization of ethylene oxide and vinyl monomer forms a statistical copolymer concurrently with the transesterification of tert-butyl group and oligomer PEO anions. The application of the copolymer as all solid lithium-ion battery polymer electrolyte was investigated by detecting the ionic conductivity (σ) with electrical impedance spectrum measurement.
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Affiliation(s)
- Wenhao Xiao
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China; (W.X.); (P.L.); (Y.C.); (J.Z.)
| | - Liguo Xu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China;
| | - Pan Liu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China; (W.X.); (P.L.); (Y.C.); (J.Z.)
| | - Yang Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China; (W.X.); (P.L.); (Y.C.); (J.Z.)
| | - Jie Zhang
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China; (W.X.); (P.L.); (Y.C.); (J.Z.)
| | - Jinbao Xu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China; (W.X.); (P.L.); (Y.C.); (J.Z.)
- Correspondence:
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12
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Leiske MN, Lai M, Amarasena T, Davis TP, Thurecht KJ, Kent SJ, Kempe K. Interactions of core cross-linked poly(2-oxazoline) and poly(2-oxazine) micelles with immune cells in human blood. Biomaterials 2021; 274:120843. [PMID: 33984635 DOI: 10.1016/j.biomaterials.2021.120843] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 12/18/2022]
Abstract
Water-soluble poly(cyclic imino ether)s (PCIEs) have emerged as promising biocompatible polymers for nanomedicine applications in recent years. Despite their generally accepted stealth properties, there has been no comprehensive evaluation of their interactions with primary immune cells in human blood. Here we present a library of core cross-linked micelles (CCMs) containing various PCIE shells. Well-defined high molar mass CCMs (Mn > 175 kDa, Ð < 1.2) of similar diameter (~20 nm) were synthesised using a cationic ring-opening polymerisation (CROP) - surfactant-free reversible addition-fragmentation chain-transfer (RAFT) emulsion polymerisation strategy. The stealth properties of the different PCIE CCMs were assessed employing a whole human blood assay simulating the complex blood environment. Cell association studies revealed lower associations of poly(2-methyl-2-oxazoline) (PMeOx) and poly(2-ethyl-2-oxazoline) (PEtOx) CCMs with blood immune cells compared to the respective poly(2-oxazine) (POz) CCMs. Noteworthy, PMeOx CCMs outperformed all other reported CCMs, showing overall low associations and only negligible differences in the presence and absence of serum proteins. This study highlights the importance of investigating individual nanomaterials under physiologically relevant conditions and further strengthens the position of PMeOx as a highly promising stealth material for biomedical applications.
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Affiliation(s)
- Meike N Leiske
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia
| | - May Lai
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia
| | - Thakshila Amarasena
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, The University of Melbourne, Melbourne, Australia; Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3000, Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia; Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology, ARC Centre of Excellence in Convergent Bio-Nano Science & Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Kristofer J Thurecht
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology, ARC Centre of Excellence in Convergent Bio-Nano Science & Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Stephen J Kent
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, The University of Melbourne, Melbourne, Australia; Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3000, Australia; Melbourne Sexual Health Centre and Department of Infectious Diseases, Alfred Health, Central Clinical School, Monash University, Melbourne, VIC, 3800, Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia; Materials Science and Engineering, Monash University, Clayton, VIC, 3800, Australia.
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13
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Finnegan JR, Pilkington EH, Alt K, Rahim MA, Kent SJ, Davis TP, Kempe K. Stealth nanorods via the aqueous living crystallisation-driven self-assembly of poly(2-oxazoline)s. Chem Sci 2021; 12:7350-7360. [PMID: 34163824 PMCID: PMC8171341 DOI: 10.1039/d1sc00938a] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/10/2021] [Indexed: 11/21/2022] Open
Abstract
The morphology of nanomaterials critically influences their biological interactions. However, there is currently a lack of robust methods for preparing non-spherical particles from biocompatible materials. Here, we combine 'living' crystallisation-driven self-assembly (CDSA), a seeded growth method that enables the preparation of rod-like polymer nanoparticles, with poly(2-oxazoline)s (POx), a polymer class that exhibits 'stealth' behaviour and excellent biocompatibility. For the first time, the 'living' CDSA process was carried out in pure water, resulting in POx nanorods with lengths ranging from ∼60 to 635 nm. In vitro and in vivo study revealed low immune cell association and encouraging blood circulation times, but little difference in the behaviour of POx nanorods of different length. The stealth behaviour observed highlights the promising potential of POx nanorods as a next generation stealth drug delivery platform.
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Affiliation(s)
- John R Finnegan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria 3052 Australia
| | - Emily H Pilkington
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria 3052 Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science, Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne Parkville Victoria 3010 Australia
| | - Karen Alt
- NanoTheranostics Laboratory, Australian Centre for Blood Diseases, Monash University Melbourne Victoria 3004 Australia
| | - Md Arifur Rahim
- School of Chemical Engineering, University of New South Wales (UNSW) Sydney NSW 2052 Australia
| | - Stephen J Kent
- ARC Centre of Excellence in Convergent Bio-Nano Science, Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne Parkville Victoria 3010 Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria 3052 Australia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland Brisbane QLD 4072 Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University Parkville Victoria 3052 Australia
- Materials Science and Engineering, Monash University Clayton VIC 3800 Australia
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14
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Kirila T, Smirnova A, Razina A, Tenkovtsev A, Filippov A. Influence of Salt on the Self-Organization in Solutions of Star-Shaped Poly-2-alkyl-2-oxazoline and Poly-2-alkyl-2-oxazine on Heating. Polymers (Basel) 2021; 13:1152. [PMID: 33916516 PMCID: PMC8038499 DOI: 10.3390/polym13071152] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 11/24/2022] Open
Abstract
The water-salt solutions of star-shaped six-arm poly-2-alkyl-2-oxazines and poly-2-alkyl-2-oxazolines were studied by light scattering and turbidimetry. The core was hexaaza[26]orthoparacyclophane and the arms were poly-2-ethyl-2-oxazine, poly-2-isopropyl-2-oxazine, poly-2-ethyl-2-oxazoline, and poly-2-isopropyl-2-oxazoline. NaCl and N-methylpyridinium p-toluenesulfonate were used as salts. Their concentration varied from 0-0.154 M. On heating, a phase transition was observed in all studied solutions. It was found that the effect of salt on the thermosensitivity of the investigated stars depends on the structure of the salt and polymer and on the salt content in the solution. The phase separation temperature decreased with an increase in the hydrophobicity of the polymers, which is caused by both a growth of the side radical size and an elongation of the monomer unit. For NaCl solutions, the phase separation temperature monotonically decreased with growth of salt concentration. In solutions with methylpyridinium p-toluenesulfonate, the dependence of the phase separation temperature on the salt concentration was non-monotonic with minimum at salt concentration corresponding to one salt molecule per one arm of a polymer star. Poly-2-alkyl-2-oxazine and poly-2-alkyl-2-oxazoline stars with a hexaaza[26]orthoparacyclophane core are more sensitive to the presence of salt in solution than the similar stars with a calix[n]arene branching center.
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Affiliation(s)
- Tatyana Kirila
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Pr. 31, 199004 Saint Petersburg, Russia; (A.S.); (A.R.); (A.T.); (A.F.)
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15
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Deepagan VG, Leiske MN, Fletcher NL, Rudd D, Tieu T, Kirkwood N, Thurecht KJ, Kempe K, Voelcker NH, Cifuentes-Rius A. Engineering Fluorescent Gold Nanoclusters Using Xanthate-Functionalized Hydrophilic Polymers: Toward Enhanced Monodispersity and Stability. NANO LETTERS 2021; 21:476-484. [PMID: 33350838 DOI: 10.1021/acs.nanolett.0c03930] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We introduce xanthate-functionalized poly(cyclic imino ethers)s (PCIEs), specifically poly(2-ethyl-2-oxazoline) and poly(2-ethyl-2-oxazine) given their stealth characteristics, as an attractive alternative to conventional thiol-based ligands for the synthesis of highly monodisperse and fluorescent gold nanoclusters (AuNCs). The xanthate in the PCIEs interacts with Au ions, acting as a well-controlled template for the direct formation of PCIE-AuNCs. This method yields red-emitting AuNCs with a narrow emission peak (λem = 645 nm), good quantum yield (4.3-4.8%), long fluorescence decay time (∼722-844 ns), and unprecedented product yield (>98%). The PCIE-AuNCs exhibit long-term colloidal stability, biocompatibility, and antifouling properties, enabling a prolonged blood circulation, lower nonspecific accumulation in major organs, and better renal clearance when compared with AuNCs without polymer coating. The advances made here in the synthesis of metal nanoclusters using xanthate-functionalized PCIEs could propel the production of highly monodisperse, biocompatible, and renally clearable nanoprobes in large-scale for different theranostic applications.
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Affiliation(s)
- Veerasikku Gopal Deepagan
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
| | - Meike N Leiske
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Nicholas L Fletcher
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - David Rudd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
| | - Terence Tieu
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Bayview Avenue, Clayton, Victoria 3168, Australia
| | - Nicholas Kirkwood
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kristofer J Thurecht
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Kristian Kempe
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3168, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Bayview Avenue, Clayton, Victoria 3168, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3168, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, 151 Wellington Road, Clayton, Victoria 3168, Australia
| | - Anna Cifuentes-Rius
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
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16
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Mahmoud AM, Morrow JP, Pizzi D, Azizah AM, Davis TP, Tabor RF, Kempe K. Tuning Cellular Interactions of Carboxylic Acid-Side-Chain-Containing Polyacrylates: The Role of Cyanine Dye Label and Side-Chain Type. Biomacromolecules 2020; 21:3007-3016. [PMID: 32598140 DOI: 10.1021/acs.biomac.0c00244] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cellular uptake and intracellular targeting to specific organelles are key events in the cellular processing of nanomaterials. Herein, we perform a detailed structure-property relationship study on carboxylic acid-side-chain-bearing polyacrylates to provide design criteria for the manipulation of their cellular interactions. Redox-initiated reversible addition-fragmentation chain-transfer (RRAFT) polymerization of three tert-butyl-protected N-acylated amino ester-based acrylate monomers of different substitutions and degrees of polymerization (DPs) yielded defined and pH-responsive carboxylic acid-side-chain polymers upon deprotection (N-acetyl, DP 1: P(M1); N-propionyl, DP 1: P(E1), DP 2: P(E2)). Flow cytometry studies revealed time-dependent cell association with P(E2) > P(E1) > P(M1) at any given time point. Importantly, the type of cyanine dye used for labeling was found to significantly influence the cellular processing of the polymers. Changing the dye from Cy5 to its sulfonated version sulfoCy5 resulted in a much lower cellular association. Moreover, Cy5-labeled polymers were targeted to mitochondria, while sulfoCy5 modification caused a significant change in the cellular fate of polymers toward lysosome trafficking. This study highlights the importance of selecting a suitable dye but also demonstrates the possibilities for the rational design of organelle-specific targeting of carboxylated polyacrylates.
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Affiliation(s)
- Ayaat M Mahmoud
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Joshua P Morrow
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - David Pizzi
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Ailsa M Azizah
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia.,Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia.,Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
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17
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Zartner L, Muthwill MS, Dinu IA, Schoenenberger CA, Palivan CG. The rise of bio-inspired polymer compartments responding to pathology-related signals. J Mater Chem B 2020; 8:6252-6270. [PMID: 32452509 DOI: 10.1039/d0tb00475h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Self-organized nano- and microscale polymer compartments such as polymersomes, giant unilamellar vesicles (GUVs), polyion complex vesicles (PICsomes) and layer-by-layer (LbL) capsules have increasing potential in many sensing applications. Besides modifying the physicochemical properties of the corresponding polymer building blocks, the versatility of these compartments can be markedly expanded by biomolecules that endow the nanomaterials with specific molecular and cellular functions. In this review, we focus on polymer-based compartments that preserve their structure, and highlight the key role they play in the field of medical diagnostics: first, the self-assembling abilities that result in preferred architectures are presented for a broad range of polymers. In the following, we describe different strategies for sensing disease-related signals (pH-change, reductive conditions, and presence of ions or biomolecules) by polymer compartments that exhibit stimuli-responsiveness. In particular, we distinguish between the stimulus-sensitivity contributed by the polymer itself or by additional compounds embedded in the compartments in different sensing systems. We then address necessary properties of sensing polymeric compartments, such as the enhancement of their stability and biocompatibility, or the targeting ability, that open up new perspectives for diagnostic applications.
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Affiliation(s)
- Luisa Zartner
- Chemistry Department, University of Basel, Mattenstr. 24a, BPR1096, Basel, Switzerland.
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18
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Kirila T, Smirnova A, Razina A, Tenkovtsev A, Filippov A. Synthesis and Conformational Characteristics of Thermosensitive Star-Shaped Six-Arm Polypeptoids. Polymers (Basel) 2020; 12:polym12040800. [PMID: 32260090 PMCID: PMC7240544 DOI: 10.3390/polym12040800] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/25/2020] [Accepted: 03/28/2020] [Indexed: 11/16/2022] Open
Abstract
Star-shaped six-arm poly-2-alkyl-2-oxazine and poly-2-alkyl-2-oxazoline with hexaaza [26]orthoparacyclophane derivative core were synthesized successfully using cationic ring-opening polymerization. Conformational behavior of prepared polymer stars were investigated by the methods of molecular hydrodynamics and optics in molecular dispersed solutions. It was shown that conformation characteristics of star-shaped polypeptoids depends on arm length, while the chemical structure weakly affects the behavior of the studied polymers in solutions. This behavior is caused by the close equilibrium rigidity of arms. The star-shaped polypeptoids have relatively high intramolecular density. All synthesized stars exhibit LCST behavior. Phase separation temperature depends on arm structure. It is lower for poly-2-alkyl-2-oxazines, monomer units of which contains one methylene group more than monomers of poly-2-alkyl-2-oxazoline.
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19
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Leiske MN, Mahmoud AM, Warne NM, Goos JACM, Pascual S, Montembault V, Fontaine L, Davis TP, Whittaker MR, Kempe K. Poly(2-isopropenyl-2-oxazoline) – a structural analogue to poly(vinyl azlactone) with Orthogonal Reactivity. Polym Chem 2020. [DOI: 10.1039/d0py00861c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A modular copolymer platform based on two oxazole derivatives is presented. Post-polymerisation modifications revealed the potential to selectively modify the individual side groups, providing access to functional copolymer libraries in the future.
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20
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Muljajew I, Erlebach A, Weber C, Buchheim JR, Sierka M, Schubert US. A polyesteramide library from dicarboxylic acids and 2,2′-bis(2-oxazoline): synthesis, characterization, nanoparticle formulation and molecular dynamics simulations. Polym Chem 2020. [DOI: 10.1039/c9py01293a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined experimental and in silico approach enabled tailoring of polyesteramides with respect to formation of aqueous nanoparticle dispersions.
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Affiliation(s)
- Irina Muljajew
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Andreas Erlebach
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Otto Schott Institute of Materials Research (OSIM)
| | - Christine Weber
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Johannes R. Buchheim
- Institute for Technical Chemistry and Environmental Chemistry
- Center for Energy and Environmental Chemistry Jena (CEEC Jena)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Marek Sierka
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Otto Schott Institute of Materials Research (OSIM)
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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21
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Nguyen THN, Balligand F, Bormann A, Bennevault V, Guégan P. Synthesis of new biobased linear poly(ester amide)s. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109314] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Kerscher B, Trötschler TM, Pásztói B, Gröer S, Szabó Á, Iván B, Mülhaupt R. Thermoresponsive Polymer Ionic Liquids and Nanostructured Hydrogels Based upon Amphiphilic Polyisobutylene-b-poly(2-ethyl-2-oxazoline) Diblock Copolymers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00296] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin Kerscher
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79104 Freiburg, Germany
- Freiburg Materials Research Center (FMF), University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
| | - Tobias M. Trötschler
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79104 Freiburg, Germany
- Freiburg Materials Research Center (FMF), University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110 Freiburg, Germany
| | - Balázs Pásztói
- Polymer Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
- George Hevesy PhD School of Chemistry, Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 2, H-1117 Budapest, Hungary
| | - Saskia Gröer
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79104 Freiburg, Germany
- Freiburg Materials Research Center (FMF), University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110 Freiburg, Germany
| | - Ákos Szabó
- Polymer Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Béla Iván
- Polymer Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Rolf Mülhaupt
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79104 Freiburg, Germany
- Freiburg Materials Research Center (FMF), University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110 Freiburg, Germany
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23
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Tardy BL, Richardson JJ, Nithipipat V, Kempe K, Guo J, Cho KL, Rahim MA, Ejima H, Caruso F. Protein Adsorption and Coordination-Based End-Tethering of Functional Polymers on Metal-Phenolic Network Films. Biomacromolecules 2019; 20:1421-1428. [PMID: 30794387 DOI: 10.1021/acs.biomac.9b00006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal-phenolic network (MPN) coatings have generated increasing interest owing to their biologically inspired nature, facile fabrication, and near-universal adherence, especially for biomedical applications. However, a key issue in biomedicine is protein fouling, and the adsorption of proteins on tannic acid-based MPNs remains to be comprehensively studied. Herein, we investigate the interaction of specific biomedically relevant proteins in solution (e.g., bovine serum albumin (BSA), immunoglobulin G (IgG), fibrinogen) and complex biological media (serum) using layer-by-layer-assembled tannic acid/FeIII MPN films. When FeIII was the outermost layer, galloyl-modified poly(2-ethyl-2-oxazoline) (P(EtOx)-Gal) could be grafted to the films through coordination bonds. Protein fouling and bacterial adhesion were greatly suppressed after functionalization with P(EtOx)-Gal and the mass of adsorbed protein was reduced by 79%. Interestingly, larger proteins adsorbed more on both the MPNs and P(EtOx)-functionalized MPNs. This study provides fundamental information on the interactions of MPNs with single proteins, mixtures of proteins as encountered in serum, and the noncovalent, coordination-based, functionalization of MPN films.
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Affiliation(s)
- Blaise L Tardy
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Vichida Nithipipat
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Junling Guo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Kwun Lun Cho
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Md Arifur Rahim
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Hirotaka Ejima
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
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24
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Klein T, Parkin J, Jongh PAJM, Esser L, Sepehrizadeh T, Zheng G, Veer M, Alt K, Hagemeyer CE, Haddleton DM, Davis TP, Thelakkat M, Kempe K. Functional Brush Poly(2‐ethyl‐2‐oxazine)s: Synthesis by CROP and RAFT, Thermoresponsiveness and Grafting onto Iron Oxide Nanoparticles. Macromol Rapid Commun 2019; 40:e1800911. [DOI: 10.1002/marc.201800911] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/29/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Tobias Klein
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology Monash Institute of Pharmaceutical Sciences Monash University Parkville VIC 3052 Australia
- Applied Functional Polymers Macromolecular Chemistry I University of Bayreuth 95440 Bayreuth Germany
| | - Joshua Parkin
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology Monash Institute of Pharmaceutical Sciences Monash University Parkville VIC 3052 Australia
- Chemistry Department University of Warwick Coventry CV4 7AL UK
| | | | - Lars Esser
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology Monash Institute of Pharmaceutical Sciences Monash University Parkville VIC 3052 Australia
| | - Tara Sepehrizadeh
- Monash Biomedical Imaging Monash University Wellington Road Clayton VIC 3168 Australia
| | - Gang Zheng
- Monash Biomedical Imaging Monash University Wellington Road Clayton VIC 3168 Australia
| | - Michael Veer
- Monash Biomedical Imaging Monash University Wellington Road Clayton VIC 3168 Australia
| | - Karen Alt
- Australian Centre for Blood Diseases Monash University Melbourne VIC 3004 Australia
| | | | | | - Thomas P. Davis
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology Monash Institute of Pharmaceutical Sciences Monash University Parkville VIC 3052 Australia
| | - Mukundan Thelakkat
- Applied Functional Polymers Macromolecular Chemistry I University of Bayreuth 95440 Bayreuth Germany
| | - 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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25
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Morgese G, Gombert Y, Ramakrishna SN, Benetti EM. Mixing Poly(ethylene glycol) and Poly(2-alkyl-2-oxazoline)s Enhances Hydration and Viscoelasticity of Polymer Brushes and Determines Their Nanotribological and Antifouling Properties. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41839-41848. [PMID: 30395432 DOI: 10.1021/acsami.8b17193] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Poly(2-alkyl-2-oxazoline)s (PAOXAs) have progressively emerged as suitable alternatives for replacing poly(ethylene glycol) (PEG) in a variety of biomaterial-related applications, especially in the designing of polymer brush-based biointerfaces because of their stealth properties and chemical robustness. When equimolar mixtures of PEG and PAOXAs are assembled on surfaces to yield mixed polymer brushes, the interfacial physicochemical properties of the obtained films are significantly altered, in some cases, surpassing the biopassive and lubricious characteristics displayed by single-component PAOXA and PEG counterparts. With a combination of variable angle spectroscopic ellipsometry, quartz crystal microbalance with dissipation, and atomic force microscopy-based methods, we demonstrate that mixing of PEG brushes with equimolar amounts of PAOXA grafts determines an increment in film's hydration and viscoelasticity. In the case of mixtures of PEG and poly(2-methyl-2-oxazoline) or poly(2-ethyl-2-oxazoline), brushes displaying full inertness toward serum proteins and improved lubricity with respect to the corresponding single-component layers can be generated, while providing a multifunctional surface that substantially enlarges the applicability of the designed coatings.
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Affiliation(s)
- Giulia Morgese
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , ETH Zürich CH 8093 , Zürich , Switzerland
| | - Yvonne Gombert
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , ETH Zürich CH 8093 , Zürich , Switzerland
| | - Shivaprakash N Ramakrishna
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , ETH Zürich CH 8093 , Zürich , Switzerland
| | - Edmondo M Benetti
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , ETH Zürich CH 8093 , Zürich , Switzerland
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26
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de Jongh PA, Haddleton DM, Kempe K. Spontaneous zwitterionic copolymerisation: An undervalued and efficacious technique for the synthesis of functional degradable oligomers and polymers. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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27
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Zhang C, Sanchez RJP, Fu C, Clayden-Zabik R, Peng H, Kempe K, Whittaker AK. Importance of Thermally Induced Aggregation on 19F Magnetic Resonance Imaging of Perfluoropolyether-Based Comb-Shaped Poly(2-oxazoline)s. Biomacromolecules 2018; 20:365-374. [DOI: 10.1021/acs.biomac.8b01549] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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28
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Jerca FA, Jerca VV, Hoogenboom R. Well‐Defined Thermoresponsive Polymethacrylamide Copolymers with Ester Pendent Groups through One‐Pot Statistical Postpolymerization Modification of Poly(2‐Isopropenyl‐2‐Oxazoline) with Multiple Carboxylic Acids. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29188] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Florica Adriana Jerca
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281‐S4, B‐9000 Ghent Belgium
- Centre of Organic Chemistry “Costin D. Nenitescu”Romanian Academy 202B Spl. Independentei CP 35‐108, 060023 Bucharest Romania
| | - Valentin Victor Jerca
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281‐S4, B‐9000 Ghent Belgium
- Centre of Organic Chemistry “Costin D. Nenitescu”Romanian Academy 202B Spl. Independentei CP 35‐108, 060023 Bucharest Romania
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281‐S4, B‐9000 Ghent Belgium
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29
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Wang M, Gustafsson OJR, Siddiqui G, Javed I, Kelly HG, Blin T, Yin H, Kent SJ, Creek DJ, Kempe K, Ke PC, Davis TP. Human plasma proteome association and cytotoxicity of nano-graphene oxide grafted with stealth polyethylene glycol and poly(2-ethyl-2-oxazoline). NANOSCALE 2018; 10:10863-10875. [PMID: 29658020 DOI: 10.1039/c8nr00835c] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polyethylene glycol (PEG) is a gold standard against protein fouling. However, recent studies have revealed surprising adverse effects of PEG, namely its immunogenicity and shortened bio-circulation upon repeated dosing. This highlights a crucial need to further examine 'stealth' polymers for controlling the protein 'corona', a new challenge in nanomedicine and bionanotechnology. Poly(2-ethyl-2-oxazoline) (PEtOx) is another primary form of stealth polymer that, despite its excellent hydrophilicity and biocompatibility, has found considerably less applications compared with PEG. Herein, we performed label-free proteomics to compare the associations of linear PEG- and PEtOx-grafted nano-graphene oxide (nGO) sheets with human plasma proteins, complemented by cytotoxicity and haemolysis assays to compare the cellular interactions of these polymers. Our data revealed that nGO-PEG enriched apolipoproteins, while nGO-PEtOx displayed a preferred binding with pro-angiogenic and structural proteins, despite high similarities in their respective top-10 enriched proteins. In addition, nGO-PEG and nGO-PEtOx exhibited similar levels of enrichment of complement proteins. Both PEG and PEtOx markedly reduced nGO toxicity to HEK 293 cells while mitigating nGO haemolysis. This study provides the first detailed profile of the human plasma protein corona associated with PEtOx-grafted nanomaterials and, in light of the distinctions of PEtOx in chemical adaptability, in vivo clearance and immunogenicity, validates the use of PEtOx as a viable stealth alternative to PEG for nanomedicines and bionanotechnologies.
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Affiliation(s)
- Miaoyi Wang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Ove J R Gustafsson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, University Boulevard, Mawson Lakes, SA 5095, Australia
| | - Ghizal Siddiqui
- Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Ibrahim Javed
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Hannah G Kelly
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Melbourne, VIC 3000, Australia and Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC 3000, Australia
| | - Thomas Blin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Hong Yin
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia
| | - Stephen J Kent
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Melbourne, VIC 3000, Australia and Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC 3000, Australia and Melbourne Sexual Health Centre and Department of Infectious Diseases, Alfred Health, Central Clinical School, Monash University, Melbourne, Australia
| | - Darren J Creek
- Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Pu Chun Ke
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia. and Department of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, UK
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30
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Dargaville TR, Park J, Hoogenboom R. Poly(2‐oxazoline) Hydrogels: State‐of‐the‐Art and Emerging Applications. Macromol Biosci 2018; 18:e1800070. [DOI: 10.1002/mabi.201800070] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/28/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Tim R. Dargaville
- Institute of Health and Biomedical Innovation Science and Engineering Faculty Queensland University of Technology Queensland 4001 Australia
| | - Jong‐Ryul Park
- Institute of Health and Biomedical Innovation Science and Engineering Faculty Queensland University of Technology Queensland 4001 Australia
| | - Richard Hoogenboom
- Supramolecular Chemistry Group Centre of Macromolecular Chemistry (CMaC) Department of Organic and Macromolecular Chemistry Ghent University Krijgslaan 281 S4 B‐9000 Ghent Belgium
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31
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Steinkoenig J, de Jongh PAJM, Haddleton DM, Goldmann AS, Barner-Kowollik C, Kempe K. Unraveling the Spontaneous Zwitterionic Copolymerization Mechanism of Cyclic Imino Ethers and Acrylic Acid. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02608] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jan Steinkoenig
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., QLD
4000, Brisbane, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | | | - David M. Haddleton
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Anja S. Goldmann
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., QLD
4000, Brisbane, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christopher Barner-Kowollik
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., QLD
4000, Brisbane, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Kristian Kempe
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
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32
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Trachsel L, Broguiere N, Rosenboom JG, Zenobi-Wong M, Benetti EM. Enzymatically crosslinked poly(2-alkyl-2-oxazoline) networks for 3D cell culture. J Mater Chem B 2018; 6:7568-7572. [DOI: 10.1039/c8tb02382d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Cellularized poly(2-alkyl-2-oxazoline) hydrogels fabricated by sortase-mediated crosslinking feature tunable mechanical properties and enable extremely high cell viability.
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Affiliation(s)
- Lucca Trachsel
- Tissue Engineering + Biofabrication
- Department of Health Sciences and Technology
- ETH Zürich
- Zürich
- Switzerland
| | - Nicolas Broguiere
- Tissue Engineering + Biofabrication
- Department of Health Sciences and Technology
- ETH Zürich
- Zürich
- Switzerland
| | - Jan-Georg Rosenboom
- Institute of Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- Zürich
- Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering + Biofabrication
- Department of Health Sciences and Technology
- ETH Zürich
- Zürich
- Switzerland
| | - Edmondo M. Benetti
- Polymer Surfaces Group
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- Zürich
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33
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Mahmoud AM, Rajakanthan A, Kempe K. Functional hydrophobic and hetero-grafted block comb polymers via a combination of spontaneous zwitterionic copolymerisation and redox-initiated RAFT polymerisation. Polym Chem 2018. [DOI: 10.1039/c7py01912b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-toxic hydrophobic and amphiphilic N-acylated poly(amino ester)-based comb polymers self-assemble into functional responsive nano-sized aggregates in aqueous solution.
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Affiliation(s)
- Ayaat Mohamed Mahmoud
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Alexander Rajakanthan
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
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