51
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Xu K, Zhang L, Gu Y, Yang H, Du B, Liu H, Li Y. Increased the TMZ concentration in brain by poly(2-ethyl-2-oxazoline) conjugated temozolomide prodrug micelles for glioblastoma treatment. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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52
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Park JR, Bolle ECL, Santos Cavalcanti AD, Podevyn A, Van Guyse JFR, Forget A, Hoogenboom R, Dargaville TR. Injectable biocompatible poly(2-oxazoline) hydrogels by strain promoted alkyne-azide cycloaddition. Biointerphases 2021; 16:011001. [PMID: 33401918 DOI: 10.1116/6.0000630] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Poly(2-alkyl-2-oxazoline) (PAOx) hydrogels are tailorable synthetic materials with demonstrated biomedical applications, thanks to their excellent biocompatibility and tunable properties. However, their use as injectable hydrogels is challenging as it requires invasive surgical procedures to insert the formed hydrogel into the body due to their nonsoluble 3D network structures. Herein, we introduce cyclooctyne and azide functional side chains to poly(2-oxazoline) copolymers to induce in situ gelation using strain promoted alkyne-azide cycloaddition. The gelation occurs rapidly, within 5 min, under physiological conditions when two polymer solutions are simply mixed. The influence of several parameters, such as temperature and different aqueous solutions, and stoichiometric ratios between the two polymers on the structural properties of the resultant hydrogels have been investigated. The gel formation within tissue samples was verified by subcutaneous injection of the polymer solution into an ex vivo model. The degradation study of the hydrogels in vitro showed that the degradation rate was highly dependent on the type of media, ranging from days to a month. This result opens up the potential uses of PAOx hydrogels in attempts to achieve optimal, injectable drug delivery systems and tissue engineering.
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Affiliation(s)
- Jong-Ryul Park
- Institute of Health and Biomedical Innovation, Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Eleonore C L Bolle
- Institute of Health and Biomedical Innovation, Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Amanda Dos Santos Cavalcanti
- Institute of Health and Biomedical Innovation, Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Annelore Podevyn
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Joachim F R Van Guyse
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Aurelien Forget
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-St. 31, Freiburg, 79104, Germany
| | - 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
| | - Tim R Dargaville
- Institute of Health and Biomedical Innovation, Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia
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53
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Advanced materials for drug delivery across mucosal barriers. Acta Biomater 2021; 119:13-29. [PMID: 33141051 DOI: 10.1016/j.actbio.2020.10.031] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 12/15/2022]
Abstract
Mucus is a viscoelastic gel that traps pathogens and other foreign particles to limit their penetration into the underlying epithelium. Dosage forms containing particle-based drug delivery systems are trapped in mucosal layers and will be removed by mucus turnover. Mucoadhesion avoids premature wash-off and prolongs the residence time of drugs on mucus. Moreover, mucus penetration is essential for molecules to access the underlying epithelial tissues. Various strategies have been investigated to achieve mucoadhesion and mucus penetration of drug carriers. Innovations in materials used for the construction of drug-carrier systems allowed the development of different mucoadhesion and mucus penetration delivery systems. Over the last decade, advances in the field of materials chemistry, with a focus on biocompatibility, have led to the expansion of the pool of materials available for drug delivery applications. The choice of materials in mucosal delivery is generally dependent on the intended therapeutic target and nature of the mucosa at the site of absorption. This review presents an up-to-date account of materials including synthesis, physical and chemical modifications of mucoadhesive materials, nanocarriers, viral mimics used for the construction of mucosal drug delivery systems.
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54
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Göppert NE, Dirauf M, Weber C, Schubert US. Block copolymers comprising degradable poly(2-ethyl-2-oxazoline) analogues via copper-free click chemistry. Polym Chem 2021. [DOI: 10.1039/d1py00853f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We present the synthesis development of amphiphilic, degradable poly(2-ethyl-2-oxazoline) (PEtOx) analogue block copolymers in a modular fashion utilizing the strain-promoted azide–alkyne cycloaddition (SPAAC).
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Affiliation(s)
- Natalie E. Göppert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Michael Dirauf
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Christine Weber
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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55
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Abstract
Synthesis of semifluorinated polymers containing fluorous groups on the backbone or as side chains is an increasingly popular field of research.
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Affiliation(s)
- Joseph A. Jaye
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
| | - Ellen M. Sletten
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
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56
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Rodchenko S, Amirova A, Kurlykin M, Tenkovtsev A, Milenin S, Filippov A. Amphiphilic Molecular Brushes with Regular Polydimethylsiloxane Backbone and Poly-2-isopropyl-2-oxazoline Side Chains. 2. Self-Organization in Aqueous Solutions on Heating. Polymers (Basel) 2020; 13:E31. [PMID: 33374766 PMCID: PMC7796000 DOI: 10.3390/polym13010031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 01/18/2023] Open
Abstract
The behavior of amphiphilic molecular brushes in aqueous solutions on heating was studied by light scattering and turbidimetry. The main chain of the graft copolymers was polydimethylsiloxane, and the side chains were thermosensitive poly-2-isopropyl-2-oxazoline. The studied samples differed in the length of the grafted chains (polymerization degrees were 14 and 30) and, accordingly, in the molar fraction of the hydrophobic backbone. The grafting density of both samples was 0.6. At low temperatures, macromolecules and aggregates, which formed due to the interaction of main chains, were observed in solutions. At moderate temperatures, heating solutions of the sample with short side chains led to aggregation due to dehydration of poly-2-isopropyl-2-oxazoline and the formation of intermolecular hydrogen bonds. In the case of the brush with long grafted chains, dehydration caused the formation of intramolecular hydrogen bonds and the compaction of molecules and aggregates. The lower critical solution temperature for solutions of the sample with long side chains was higher than LCST for the sample with short side chains. It was shown that the molar fraction of the hydrophobic component and the intramolecular density are the important factors determining the LCST behavior of amphiphilic molecular brushes in aqueous solutions.
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Affiliation(s)
- Serafim Rodchenko
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Alina Amirova
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Mikhail Kurlykin
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Andrey Tenkovtsev
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Sergey Milenin
- Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya, 70, 117393 Moscow, Russia;
| | - Alexander Filippov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
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57
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Göppert NE, Kleinsteuber M, Weber C, Schubert US. Degradable Poly(2-oxazoline) Analogues from Partially Oxidized Poly(ethylene imine). Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Natalie E. Göppert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Maximilian Kleinsteuber
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Christine Weber
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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58
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Bunker A, Róg T. Mechanistic Understanding From Molecular Dynamics Simulation in Pharmaceutical Research 1: Drug Delivery. Front Mol Biosci 2020; 7:604770. [PMID: 33330633 PMCID: PMC7732618 DOI: 10.3389/fmolb.2020.604770] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/02/2020] [Indexed: 12/12/2022] Open
Abstract
In this review, we outline the growing role that molecular dynamics simulation is able to play as a design tool in drug delivery. We cover both the pharmaceutical and computational backgrounds, in a pedagogical fashion, as this review is designed to be equally accessible to pharmaceutical researchers interested in what this new computational tool is capable of and experts in molecular modeling who wish to pursue pharmaceutical applications as a context for their research. The field has become too broad for us to concisely describe all work that has been carried out; many comprehensive reviews on subtopics of this area are cited. We discuss the insight molecular dynamics modeling has provided in dissolution and solubility, however, the majority of the discussion is focused on nanomedicine: the development of nanoscale drug delivery vehicles. Here we focus on three areas where molecular dynamics modeling has had a particularly strong impact: (1) behavior in the bloodstream and protective polymer corona, (2) Drug loading and controlled release, and (3) Nanoparticle interaction with both model and biological membranes. We conclude with some thoughts on the role that molecular dynamics simulation can grow to play in the development of new drug delivery systems.
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Affiliation(s)
- Alex Bunker
- Division of Pharmaceutical Biosciences, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Tomasz Róg
- Department of Physics, University of Helsinki, Helsinki, Finland
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59
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Liu K, Wang X, Li-Blatter X, Wolf M, Hunziker P. Systematic and Quantitative Structure-Property Relationships of Polymeric Medical Nanomaterials: From Systematic Synthesis and Characterization to Computer Modeling and Nano-Bio Interaction and Toxicity. ACS APPLIED BIO MATERIALS 2020; 3:6919-6931. [PMID: 35019353 DOI: 10.1021/acsabm.0c00808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nanomaterials allow designing targeted therapies, facilitate molecular diagnostics, and are therefore enabling platforms for personalized medicine. A systematic science and a predictive understanding of molecular/supramolecular structure relationships and nanoparticle structure/biological property relationships are needed for rational design and clinical progress but are hampered by the anecdotal nature, nonsystematic and nonrepresentative nanomaterial assortment, and oligo-disciplinary approach of many publications. Here, we find that a systematic and comprehensive multidisciplinary approach to production and exploration of molecular-structure/nanostructure relationship and nano-bio structure/function relationship of medical nanomaterials can be achieved by combining systematic chemical synthesis, thorough physicochemical analysis, computer modeling, and biological experiments, as shown in a nanomaterial family of amphiphilic, micelle-forming oxazoline/siloxane block copolymers suited for the clinical application. This comprehensive interdisciplinary approach leads to improved understanding of nanomaterial structures, allows good insights into binding modes for the nanomaterial protein corona, induces the design of minimal cell-binding materials, and yields rational strategies to avoid toxicity. Thus, this work contributes to a systematic and scientific basis for rational design of medical nanomaterials.
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Affiliation(s)
- Kegang Liu
- Nanomedicine Research Lab CLINAM, University of Basel, University Hospital Basel, Bernoullistrasse 20, CH-4056 Basel, Switzerland
| | - Xueya Wang
- Nanomedicine Research Lab CLINAM, University of Basel, University Hospital Basel, Bernoullistrasse 20, CH-4056 Basel, Switzerland
| | - Xiaochun Li-Blatter
- Biozentrum, University of Basel, Klingelbergstrasse 70, 4056 Basel, Switzerland
| | - Marc Wolf
- Nanomedicine Research Lab CLINAM, University of Basel, University Hospital Basel, Bernoullistrasse 20, CH-4056 Basel, Switzerland
| | - Patrick Hunziker
- Nanomedicine Research Lab CLINAM, University of Basel, University Hospital Basel, Bernoullistrasse 20, CH-4056 Basel, Switzerland.,Intensive Care Clinic, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland.,CLINAM Foundation for Nanomedicine, Alemannengasse, 4058 Basel, Switzerland
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60
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Poly (isopropyl-oxazoline) micelle nanocarrier as dual-responsive prodrug for targeted doxorubicin delivery. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101914] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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61
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The Efficacy of Cholesterol-Based Carriers in Drug Delivery. Molecules 2020; 25:molecules25184330. [PMID: 32971733 PMCID: PMC7570546 DOI: 10.3390/molecules25184330] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
Several researchers have reported the use of cholesterol-based carriers in drug delivery. The presence of cholesterol in cell membranes and its wide distribution in the body has led to it being used in preparing carriers for the delivery of a variety of therapeutic agents such as anticancer, antimalarials and antivirals. These cholesterol-based carriers were designed as micelles, nanoparticles, copolymers, liposomes, etc. and their routes of administration include oral, intravenous and transdermal. The biocompatibility, good bioavailability and biological activity of cholesterol-based carriers make them potent prodrugs. Several in vitro and in vivo studies revealed cholesterol-based carriers potentials in delivering bioactive agents. In this manuscript, a critical review of the efficacy of cholesterol-based carriers is reported.
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62
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Nishimura T, Sumi N, Mukai SA, Sasaki Y, Akiyoshi K. Supramacromolecular injectable hydrogels by crystallization-driven self-assembly of carbohydrate-conjugated poly(2-isopropyloxazoline)s for biomedical applications. J Mater Chem B 2020; 7:6362-6369. [PMID: 31642846 DOI: 10.1039/c9tb00918c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An approach for the preparation of self-healing and injectable hydrogels based on the crystallization-driven self-assembly of carbohydrate-conjugated poly(2-isopropyloxazoline)s is reported. Hydrogelation does not require any organic solvents, as the polymers dissolve in water below their lower critical solution temperatures. The transplanted hydrogels cause no significant foreign-body response. Considering the simplicity of the method and the biocompatibility of the resulting injectable hydrogels, crystallization-driven hydrogelation of poly(oxazoline)-based polymers may potentially be used in a wide range of biomedical applications.
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Affiliation(s)
- Tomoki Nishimura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Naoki Sumi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Sada-Atsu Mukai
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Yoshihiro Sasaki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
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63
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Sabaghi S, Fatehi P. Polarity of Cationic Lignin Polymers: Physicochemical Behavior in Aqueous Solutions and Suspensions. CHEMSUSCHEM 2020; 13:4722-4734. [PMID: 33448658 DOI: 10.1002/cssc.202000897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/21/2020] [Indexed: 06/12/2023]
Abstract
The structure of cationic monomers can significantly impact the polarity of lignin after polymerization. Cationic hydrolysis lignin (CHL) polymers were produced by polymerizing hydrolysis lignin (HL) with [3-(methacryloylamino)propyl] trimethylammonium chloride (MAPTAC) or [2-(methacryloyloxy)ethyl] trimethyl ammonium chloride (METAC). The METAC monomer has an oxygen atom, with larger electronegativity, in its molecular structure, whereas the MAPTAC monomer contains a nitrogen atom, as well as an extra nonpolar CH2 group, facilitating investigation into the effects of the polarity of CHLs on their physicochemical performance in an aqueous system. CHL polymers are analyzed and their interactions with clay particles are determined in colloidal systems. CHLs are designed to have similar charge densities (2.1-2.2 mmol g-1) and molecular weights (55000-60000 g mol-1 ). The hydrodynamic radius (Hy) and radius of gyration, (Rg) of HL-METAC are larger than those of HL-MAPTAC, implying a more 3-dimensional structure of HL-METAC in aqueous solution. The stability ratio of kaolin particles affirms the better performance of HL-METAC in comparison to HL-MAPTAC, which reflects the better flocculation efficiency of HL-METAC. The results also reveal that salt and urea aqueous solutions affect the Hy, Rg, and configuration of CHL polymers, which alters the flocculation efficiency of HL-METAC and HL-MAPTAC polymers in kaolin suspensions.
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Affiliation(s)
- Sanaz Sabaghi
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan, Shangdong, 250353, P.R. China
| | - Pedram Fatehi
- Green Processes Research Centre and Chemical Engineering Department, Lakehead University, 955 Oliver Road, Thunder Bay, ON, P7B 5E1, Canada
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan, Shangdong, 250353, P.R. China
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64
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Schoolaert E, Merckx R, Becelaere J, Everaerts M, Van Guyse JFR, Sedlacek O, De Geest BG, Van den Mooter G, D’hooge DR, De Clerck K, Hoogenboom R. Immiscibility of Chemically Alike Amorphous Polymers: Phase Separation of Poly(2-ethyl-2-oxazoline) and Poly(2- n-propyl-2-oxazoline). Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00970] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ella Schoolaert
- Centre for Textile Science and Engineering, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Tech Lane Science Park 70A, 9052 Ghent, Belgium
| | - Ronald Merckx
- Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Jana Becelaere
- Centre for Textile Science and Engineering, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Tech Lane Science Park 70A, 9052 Ghent, Belgium
| | - Melissa Everaerts
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, O&N Herestraat 49 box 921, 3000 Leuven, Belgium
| | - Joachim F. R. Van Guyse
- Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Ondrej Sedlacek
- Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Bruno G. De Geest
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium
| | - Guy Van den Mooter
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, O&N Herestraat 49 box 921, 3000 Leuven, Belgium
| | - Dagmar R. D’hooge
- Centre for Textile Science and Engineering, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Tech Lane Science Park 70A, 9052 Ghent, Belgium
- Laboratory for Chemical Technology, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Tech Lane Science Park 125, 9052 Ghent, Belgium
| | - Karen De Clerck
- Centre for Textile Science and Engineering, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Tech Lane Science Park 70A, 9052 Ghent, Belgium
| | - Richard Hoogenboom
- Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
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65
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Bernhard Y, Sedlacek O, Van Guyse JFR, Bender J, Zhong Z, De Geest BG, Hoogenboom R. Poly(2-ethyl-2-oxazoline) Conjugates with Salicylic Acid via Degradable Modular Ester Linkages. Biomacromolecules 2020; 21:3207-3215. [PMID: 32639725 DOI: 10.1021/acs.biomac.0c00659] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Conjugation of drugs to polymers is a widely used approach to gain control over the release of therapeutics. In this contribution, salicylic acid, a multipurpose model drug, is conjugated to the biocompatible poly(2-ethyl-2-oxazoline) (PEtOx). The drug is attached to the side chains of a polymer carrier through a hydrolytically cleavable ester linker, via a sequential postpolymerization modification. The chemical modulation of this ester, i.e., by primary or secondary alcohols, is demonstrated to greatly influence the ester hydrolysis rate. This crucial parameter allows us to tune the in vitro kinetics of the sustained drug release for periods exceeding a month in phosphate-buffered saline (PBS). The synthetic accessibility of the cleavable linker, together with the modularity of the drug release rate offered by this approach, highlights the utility of this class of polymers in the field of long-lasting drug delivery systems for persistent and chronic disease treatment.
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Affiliation(s)
- Yann Bernhard
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Ondrej Sedlacek
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Joachim F R Van Guyse
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Johan Bender
- Bender Analytical Holding BV, Oude Holleweg 6, 6572 AB Berg en Dal, The Netherlands
| | - Zifu Zhong
- Department of Pharmaceutics, Ghent University, B-9000 Ghent, Belgium
| | - Bruno G De Geest
- Department of Pharmaceutics, Ghent University, B-9000 Ghent, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
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66
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Unravelling the Miscibility of Poly(2-oxazoline)s: A Novel Polymer Class for the Formulation of Amorphous Solid Dispersions. Molecules 2020; 25:molecules25163587. [PMID: 32781768 PMCID: PMC7465563 DOI: 10.3390/molecules25163587] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023] Open
Abstract
Water-soluble polymers are still the most popular carrier for the preparation of amorphous solid dispersions (ASDs). The advantage of this type of carrier is the fast drug release upon dissolution of the water-soluble polymer and thus the initial high degree of supersaturation of the poorly soluble drug. Nevertheless, the risk for precipitation due to fast drug release is a phenomenon that is frequently observed. In this work, we present an alternative carrier system for ASDs where a water-soluble and water-insoluble carrier are combined to delay the drug release and thus prevent this onset of precipitation. Poly(2-alkyl-2-oxazoline)s were selected as a polymer platform since the solution properties of this polymer class depend on the length of the alkyl sidechain. Poly(2-ethyl-2-oxazoline) (PEtOx) behaves as a water-soluble polymer at body temperature, while poly(2-n-propyl-2-oxazoline) (PPrOx) and poly(2-sec-butyl-2-oxazoline) (PsecBuOx) are insoluble at body temperature. Since little was known about the polymer’s miscibility behaviour and especially on how the presence of a poorly-water soluble drug impacted their miscibility, a preformulation study was performed. Formulations were investigated with X-ray powder diffraction, differential scanning calorimetry (DSC) and solid-state nuclear magnetic resonance spectroscopy. PEtOx/PPrOx appeared to form an immiscible blend based on DSC and this was even more pronounced after heating. The six drugs that were tested in this work did not show any preference for one of the two phases. PEtOx/PsecBuOx on the other hand appeared to be miscible forming a homogeneous blend between the two polymers and the drugs.
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Trinh Che L, Hiorth M, Hoogenboom R, Kjøniksen AL. Complex Temperature and Concentration Dependent Self-Assembly of Poly(2-oxazoline) Block Copolymers. Polymers (Basel) 2020; 12:polym12071495. [PMID: 32635506 PMCID: PMC7407653 DOI: 10.3390/polym12071495] [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: 06/04/2020] [Revised: 06/24/2020] [Accepted: 06/26/2020] [Indexed: 11/17/2022] Open
Abstract
The effect of polymer concentration on the temperature-induced self-association of a block copolymer comprising a poly(2-ethyl-2-oxazoline) block and a random copolymer block consisting of 2-ethyl-2-oxazoline and 2-n-propyl-2-oxazoline (PEtO80-block-P(EtOxx-stat-PropO40-x) with x = 0, 4, or 8 were investigated by dynamic light scattering (DLS) and transmittance measurements (turbidimetry). The polymers reveal a complex aggregation behavior with up to three relaxation modes in the DLS data and with a transmittance that first goes through a minimum before it declines at high temperatures. At low temperatures, unassociated polymer chains were found to co-exist with larger aggregates. As the temperature is increased, enhanced association and contraction of the aggregates results in a drop of the transmittance values. The aggregates fragment into smaller micellar-like clusters when the temperature is raised further, causing the samples to become optically clear again. At high temperatures, the polymers aggregate into large compact clusters, and the samples become turbid. Interestingly, very large aggregates were observed at low temperatures when the polymer concentrations were low. The formation of these aggregates was also promoted by a more hydrophilic copolymer structure. The formation of large aggregates with an open structure at conditions where the solvent conditions are improved is probably caused by depletion flocculation of the smaller aggregates.
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Affiliation(s)
- Loan Trinh Che
- Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, 0315 Oslo, Norway;
| | - Marianne Hiorth
- Department of Pharmacy, School of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316 Oslo, Norway;
| | - 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
- Correspondence: (R.H.); (A.-L.K.)
| | - Anna-Lena Kjøniksen
- Faculty of Engineering, Østfold University College, P.O. Box 700, 1757 Halden, Norway
- Correspondence: (R.H.); (A.-L.K.)
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68
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Jana S, Uchman M. Poly(2-oxazoline)-based stimulus-responsive (Co)polymers: An overview of their design, solution properties, surface-chemistries and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101252] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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69
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Sedlacek O, Van Driessche A, Uvyn A, De Geest BG, Hoogenboom R. Poly(2-methyl-2-oxazoline) conjugates with doxorubicin: From synthesis of high drug loading water-soluble constructs to in vitro anti-cancer properties. J Control Release 2020; 326:53-62. [PMID: 32565042 DOI: 10.1016/j.jconrel.2020.06.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/13/2020] [Accepted: 06/16/2020] [Indexed: 01/12/2023]
Abstract
Poly(2-oxazoline)s represent an emerging class of polymers with increasing potential in biomedical sciences. To date, most of the work on poly(2-oxazoline)-drug conjugates focused on poly(2-ethyl-2-oxazoline) (PEtOx), a biocompatible water-soluble polymer with biological properties similar to polyethylene glycol. However, the more hydrophilic poly(2-methyl-2-oxazoline) (PMeOx) shows better anti-fouling properties than PEtOx and thus indicates greater potential for the construction of polymer therapeutics. Herein, we synthesized for the first time a drug delivery system based on a linear PMeOx with a molar mass that is high enough (40 kDa) to exploit passive accumulation in the tumor by the enhanced permeation and retention effect. The anti-cancer drug doxorubicin is attached to the polymer carrier via an acid-sensitive hydrazone bond, which allows its pH-triggered release in the tumor. The in vitro study demonstrates successful cellular uptake of the PMeOx-doxorubicin conjugate via clathrin-mediated endocytosis, pH-sensitive drug release and high cytotoxicity against B16 melanoma cells. Finally, these properties were critically compared to the analogous systems based on the established PEtOx revealing that the more hydrophilic PMeOx carrier outperforms PEtOx in most of the parameters, showing higher maximal drug loading, superior cellular uptake, better anti-fouling properties, as well as improved in vitro anti-cancer efficiency. The study demonstrates the potential of PMeOx as a versatile platform for synthesis of new drug delivery systems.
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Affiliation(s)
- Ondrej Sedlacek
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Alexandra Van Driessche
- Department of Pharmaceutics and Cancer Research Institute Ghent (CRIG), Ghent University, 9000 Ghent, Belgium
| | - Annemiek Uvyn
- Department of Pharmaceutics and Cancer Research Institute Ghent (CRIG), Ghent University, 9000 Ghent, Belgium
| | - Bruno G De Geest
- Department of Pharmaceutics and Cancer Research Institute Ghent (CRIG), Ghent University, 9000 Ghent, Belgium
| | - 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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70
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Tricomponent thermoresponsive polymers based on an amine-containing monomer with tuneable hydrophobicity: Effect of composition. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109655] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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71
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Wang X, Hadjichristidis N. Organocatalytic Ring-Opening Polymerization of N-Acylated-1,4-oxazepan-7-ones Toward Well-Defined Poly(ester amide)s: Biodegradable Alternatives to Poly(2-oxazoline)s. ACS Macro Lett 2020; 9:464-470. [PMID: 35648503 DOI: 10.1021/acsmacrolett.0c00040] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report a series of poly(ester amide)s (PEAs) synthesized by organocatalytic ring-opening polymerization (ROP) of N-acylated-1,4-oxazepan-7-one (OxP) monomers, produced from N-acylated-4-piperidones using the Baeyer-Villiger oxidation reaction. The ROP of OxPs, conducted in CH2Cl2 at room temperature with benzyl alcohol as initiator and TBD/TU (1,5,7-triazabicyclo[4.4.0]dec-5-ene/thiourea) as a binary organocatalytic system, revealed a controlled/living character. The thermodynamics of the ROP highly depends on the N-acylated substituent of monomers, with the following reactivity order: OxPPh > OxPMe > OxPPr > OxPBn. Based on NMR results, it seems that our system follows the hydrogen bonding bifunctional activation mechanism. All intermediates and final products were characterized by NMR, MALDI-TOF MS, SEC, and DSC techniques. All poly(N-acylated-1,4-oxazepan-7-one) (POxP) polymers are amorphous with different glass transition temperatures (Tg), depending on the N-acylated substituent (Tg: -2.90 to 43.75 °C). Among the synthesized polymers, only POxPMe was water-soluble and it degraded much faster than polycaprolactone in an aqueous phosphate buffer saline solution (pH = 7.4). Therefore, poly(N-acylated-1,4-oxazepan-7-one)s are potential biodegradable alternatives to poly(2-oxazoline)s.
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Affiliation(s)
- Xin Wang
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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72
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Klikovits N, Sinawehl L, Knaack P, Koch T, Stampfl J, Gorsche C, Liska R. UV-Induced Cationic Ring-Opening Polymerization of 2-Oxazolines for Hot Lithography. ACS Macro Lett 2020; 9:546-551. [PMID: 35648510 DOI: 10.1021/acsmacrolett.0c00055] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The cationic ring-opening polymerization (CROP) of 2-oxazolines gives polymers with unique characteristics arising from its polyamide backbones and structural versatility. Up to now, poly(2-oxazoline)s were obtained by classical thermal polymerization methods not aiming for application in bulk curing of structural polymers. We introduce the cationic photopolymerization of 2-oxazolines at elevated temperatures for the direct UV-induced curing of materials with exclusive chemical and structural particularities. After efficient photoinitiation via onium salt photoacid generators (PAGs), the immanent low-rate propagation is crucially promoted by thermal energy input to the ring-opening reaction. In simultaneous thermal analysis (STA), photo-DSC, and (thermo)mechanical analyses we investigated the UV-induced CROP of 2-oxazolines in a temperature range of 100-140 °C and show the exceptional potential of the introduced photopolymers. Furthermore, we applied the photopolymerizable system in Hot Lithography, a stereolithography-based 3D printing technology at elevated temperatures.
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73
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Fam SY, Chee CF, Yong CY, Ho KL, Mariatulqabtiah AR, Tan WS. Stealth Coating of Nanoparticles in Drug-Delivery Systems. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E787. [PMID: 32325941 PMCID: PMC7221919 DOI: 10.3390/nano10040787] [Citation(s) in RCA: 177] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 01/01/2023]
Abstract
Nanoparticles (NPs) have emerged as a powerful drug-delivery tool for cancer therapies to enhance the specificity of drug actions, while reducing the systemic side effects. Nonetheless, NPs interact massively with the surrounding physiological environments including plasma proteins upon administration into the bloodstream. Consequently, they are rapidly cleared from the blood circulation by the mononuclear phagocyte system (MPS) or complement system, resulting in a premature elimination that will cause the drug release at off-target sites. By grafting a stealth coating layer onto the surface of NPs, the blood circulation half-life of nanomaterials can be improved by escaping the recognition and clearance of the immune system. This review focuses on the basic concept underlying the stealth behavior of NPs by polymer coating, whereby the fundamental surface coating characteristics such as molecular weight, surface chain density as well as conformations of polymer chains are of utmost importance for efficient protection of NPs. In addition, the most commonly used stealth polymers such as poly(ethylene glycol) (PEG), poly(2-oxazoline) (POx), and poly(zwitterions) in developing long-circulating NPs for drug delivery are also thoroughly discussed. The biomimetic strategies, including the cell-membrane camouflaging technique and CD47 functionalization for the development of stealth nano-delivery systems, are highlighted in this review as well.
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Affiliation(s)
- See Yee Fam
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (S.Y.F.); (C.Y.Y.)
| | - Chin Fei Chee
- Nanotechnology and Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Chean Yeah Yong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (S.Y.F.); (C.Y.Y.)
| | - Kok Lian Ho
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Abdul Razak Mariatulqabtiah
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia;
- Laboratory of Vaccines and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Wen Siang Tan
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (S.Y.F.); (C.Y.Y.)
- Laboratory of Vaccines and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
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74
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Self-organization in aqueous solutions of thermosensitive star-shaped and linear gradient copolymers of 2-ethyl-2-oxazoline and 2-isopropyl-2-oxazoline. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04638-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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75
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Urbánek T, Trousil J, Rak D, Gunár K, Konefał R, Šlouf M, Sedlák M, Šebestová Janoušková O, Hrubý M. γ-Butyrolactone Copolymerization with the Well-Documented Polymer Drug Carrier Poly(ethylene oxide)-block-poly(ε-caprolactone) to Fine-Tune Its Biorelevant Properties. Macromol Biosci 2020; 20:e1900408. [PMID: 32174005 DOI: 10.1002/mabi.201900408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/22/2020] [Indexed: 02/01/2023]
Abstract
Polymeric drug carriers exhibit excellent properties that advance drug delivery systems. In particular, carriers based on poly(ethylene oxide)-block-poly(ε-caprolactone) are very useful in pharmacokinetics. In addition to their proven biocompatibility, there are several requirements for the efficacy of the polymeric drug carriers after internalization, e.g., nanoparticle behavior, cellular uptake, the rate of degradation, and cellular localization. The introduction of γ-butyrolactone units into the hydrophobic block enables the tuning of the abovementioned properties over a wide range. In this study, a relatively high content of γ-butyrolactone units with a reasonable yield of ≈60% is achieved by anionic ring-opening copolymerization using 1,5,7-triazabicyclo[4.4.0]dec-5-ene as a very efficient catalyst in the nonpolar environment of toluene with an incorporated γ-butyrolactone content of ≈30%. The content of γ-butyrolactone units can be easily modulated according to the feed ratio of the monomers. This method enables control over the rate of degradation so that when the content of γ-butyrolactone increases, the rate of degradation increases. These findings broaden the application possibilities of polyester-polyether-based nanoparticles for biomedical applications, such as drug delivery systems.
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Affiliation(s)
- Tomáš Urbánek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00, Prague 6, Czechia
| | - Jiří Trousil
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00, Prague 6, Czechia.,Department of Analytical Chemistry, Charles University, Faculty of Science, Hlavova 8, 128 43, Prague 2, Czechia
| | - Dmytro Rak
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01, Košice, Slovakia
| | - Kristýna Gunár
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00, Prague 6, Czechia
| | - Rafał Konefał
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00, Prague 6, Czechia
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00, Prague 6, Czechia
| | - Marián Sedlák
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01, Košice, Slovakia
| | - Olga Šebestová Janoušková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00, Prague 6, Czechia
| | - Martin Hrubý
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstí 2, 162 00, Prague 6, Czechia
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76
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Raus V, Hološ A, Kronek J, Mosnáček J. Well-Defined Linear and Grafted Poly(2-isopropenyl-2-oxazoline)s Prepared via Copper-Mediated Reversible-Deactivation Radical Polymerization Methods. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02662] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Vladimír Raus
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Ana Hološ
- Polymer Institute of the Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
| | - Juraj Kronek
- Polymer Institute of the Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
| | - Jaroslav Mosnáček
- Polymer Institute of the Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
- Centre for Advanced Materials Application of the Slovak Academy of Sciences, Dubravska cesta 9, 845 11 Bratislava, Slovakia
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77
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Daubian D, Gaitzsch J, Meier W. Synthesis and complex self-assembly of amphiphilic block copolymers with a branched hydrophobic poly(2-oxazoline) into multicompartment micelles, pseudo-vesicles and yolk/shell nanoparticles. Polym Chem 2020. [DOI: 10.1039/c9py01559k] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A new PEO-b-PEHOx amphiphilic diblock copolymer was achieved which unlocked new complex self-assembled structures. Thanks to its hydrophobic oxazoline block with a long branched side chain, EHOx, various potent structures were obtained.
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Affiliation(s)
- Davy Daubian
- Department of Physical Chemistry
- University of Basel
- 4058 Basel
- Switzerland
| | - Jens Gaitzsch
- Department of Physical Chemistry
- University of Basel
- 4058 Basel
- Switzerland
- Leibniz-Institut für Polymerforschung Dresden e.V
| | - Wolfgang Meier
- Department of Physical Chemistry
- University of Basel
- 4058 Basel
- Switzerland
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78
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Sedlacek O, Hoogenboom R. Drug Delivery Systems Based on Poly(2‐Oxazoline)s and Poly(2‐Oxazine)s. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900168] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ondrej Sedlacek
- Supramolecular Chemistry GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281 S4 B‐9000 Ghent Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281 S4 B‐9000 Ghent Belgium
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79
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Ozkose UU, Yilmaz O, Alpturk O. Synthesis of poly(2-ethyl-2-oxazoline)-b-poly(ε-caprolactone) conjugates by a new modular strategy. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03038-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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80
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Poly(2-oxazoline) macromonomers as building blocks for functional and biocompatible polymer architectures. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109258] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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81
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82
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Kalaoglu-Altan OI, Li Y, McMaster R, Shaw A, Hou Z, Vergaelen M, Hoogenboom R, Dargaville TR, De Clerck K. Crosslinking of electrospun and bioextruded partially hydrolyzed poly(2-ethyl-2-oxazoline) using glutaraldehyde vapour. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109218] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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83
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Shielding of Hepatitis B Virus-Like Nanoparticle with Poly(2-Ethyl-2-Oxazoline). Int J Mol Sci 2019; 20:ijms20194903. [PMID: 31623310 PMCID: PMC6801929 DOI: 10.3390/ijms20194903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/29/2019] [Accepted: 08/29/2019] [Indexed: 12/16/2022] Open
Abstract
Virus-like nanoparticles (VLNPs) have been studied extensively as nanocarriers for targeted drug delivery to cancer cells. However, VLNPs have intrinsic drawbacks, in particular, potential antigenicity and immunogenicity, which hamper their clinical applications. Thus, they can be eliminated easily and rapidly by host immune systems, rendering these nanoparticles ineffective for drug delivery. The aim of this study was to reduce the antigenicity of hepatitis B core antigen (HBcAg) VLNPs by shielding them with a hydrophilic polymer, poly(2-ethyl-2-oxazoline) (PEtOx). In the present study, an amine-functionalized PEtOx (PEtOx-NH2) was synthesized using the living cationic ring-opening polymerization (CROP) technique and covalently conjugated to HBcAg VLNPs via carboxyl groups. The PEtOx-conjugated HBcAg (PEtOx-HBcAg) VLNPs were characterized with dynamic light scattering and UV-visible spectroscopy. The colloidal stability study indicated that both HBcAg and PEtOx-HBcAg VLNPs maintained their particle size in Tris-buffered saline (TBS) at human body temperature (37 °C) for at least five days. Enzyme-linked immunosorbent assays (ELISA) demonstrated that the antigenicity of PEtOx-HBcAg VLNPs reduced significantly as compared with unconjugated HBcAg VLNPs. This novel conjugation approach provides a general platform for resolving the antigenicity of VLNPs, enabling them to be developed into a variety of nanovehicles for targeted drug delivery.
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84
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Drain BA, Becer CR. Synthetic approaches on conjugation of poly(2-oxazoline)s with vinyl based polymers. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.07.047] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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85
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Abilova G, Abilkаrіm A, Irmukhametova G. Preparation and characterization of thermally crosslinked films based on chitosan and poly(2-ethyl-2-oxasoline). CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2019. [DOI: 10.15328/cb1085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Сrosslinked films based on chitosan (СHI) and poly(2-ethyl-2-oxazoline) (POZ) were prepared by thermal crosslinking. The optimal synthesis conditions and the composition of the film compositions were determined. The highest yield of the gel fraction was observed for CHI:POZ (80:20) films with a crosslinking time of 4 h at a temperature of 100°С. The main physicochemical properties of films based on pure CHI and CHI:POZ have been studied. The film swelling ability was reduced with the increase of poly(2-ethyl-2-oxazolin) content. The formation of crosslinks between N,N’-methylene-bis-acrylamide and functional amine groups of chitosan was proposed based on IR-spectroscopy data.
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86
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Dan VM, Varghese TS, Viswanathan G, Baby S. Ellipticine, its Derivatives: Re-evaluation of Clinical Suitability with the Aid of Drug Delivery Systems. Curr Cancer Drug Targets 2019; 20:33-46. [PMID: 31560288 DOI: 10.2174/1568009619666190927150131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/20/2019] [Accepted: 07/12/2019] [Indexed: 11/22/2022]
Abstract
Targeted drug delivery systems gave newer dimensions for safer and more effective use of therapeutic drugs, thus helping in circumventing the issues of toxicity and unintended drug accumulation. These ongoing developments in delivery systems can, in turn, bring back drugs that suffered various limitations, Ellipticine (EPT) being a candidate. EPT derivatives witnessed entry into clinical settings but failed to survive in clinics citing various toxic side effects. A large body of preclinical data deliberates the potency of drug delivery systems in increasing the efficiency of EPT/derivatives while decreasing their toxic side effects. Recent developments in drug delivery systems provide a platform to explore EPT and its derivatives as good clinical candidates in treating tumors. The present review deals with delivery mechanisms of EPT/EPT derivatives as antitumor drugs, in vitro and in vivo, and evaluates the suitability of EPT-carriers in clinical settings.
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Affiliation(s)
- Vipin Mohan Dan
- Microbiology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode 695562, Thiruvananthapuram, Kerala, India
| | - Thania Sara Varghese
- Garden Management Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode 695562, Thiruvananthapuram, Kerala, India
| | - Gayathri Viswanathan
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode 695562, Thiruvananthapuram, Kerala, India
| | - Sabulal Baby
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode 695562, Thiruvananthapuram, Kerala, India
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87
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Ali MW, Cheng S, Si J, Siddiq M, Ye X. Synthesis and characterization of degradable hyperbranched poly(2‐ethyl‐2‐oxazoline). ACTA ACUST UNITED AC 2019. [DOI: 10.1002/pola.29467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Muhammad Waqas Ali
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Siyuan Cheng
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Jianhao Si
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Muhammad Siddiq
- Department of ChemistryQuaid‐I‐Azam University Islamabad 45320 Pakistan
| | - Xiaodong Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 China
- CAS Key Laboratory of Soft Matter ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
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88
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Michieletto A, Lorandi F, De Bon F, Isse AA, Gennaro A. Biocompatible polymers via aqueous electrochemically mediated atom transfer radical polymerization. JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1002/pola.29462] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Francesca Lorandi
- Department of ChemistryCarnegie Mellon University, 4400 Fifth Avenue Pittsburgh Pennsylvania 15213
| | - Francesco De Bon
- Department of Chemical SciencesUniversity of Padova via Marzolo 1, 35131 Padova Italy
| | - Abdirisak Ahmed Isse
- Department of Chemical SciencesUniversity of Padova via Marzolo 1, 35131 Padova Italy
| | - Armando Gennaro
- Department of Chemical SciencesUniversity of Padova via Marzolo 1, 35131 Padova Italy
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89
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Sánchez-Fernández MJ, Immers MR, Félix Lanao RP, Yang F, Bender JCME, Mecinović J, Leeuwenburgh SCG, van Hest JCM. Alendronate-Functionalized Poly(2-oxazoline)s with Tunable Affinity for Calcium Cations. Biomacromolecules 2019; 20:2913-2921. [PMID: 31365234 PMCID: PMC6692821 DOI: 10.1021/acs.biomac.9b00104] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
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A library of poly(2-oxazoline)s functionalized
with controllable
amounts of alendronate, hydroxyl, and carboxylic acid side groups
was successfully synthesized to create novel polymers with tunable
affinity for calcium cations. The affinity of alendronate-containing
polymers for calcium cations was quantified using isothermal titration
calorimetry. Thermodynamic measurements revealed that the Ca2+-binding affinity of these polymers increased linearly with the amount
of alendronate functionalization, up to values (KCa2+ = 2.4 × 105 M–1) that were about 120-fold higher than those for previously reported
polymers. The calcium-binding capacity of alendronate-functionalized
poly(2-oxazoline)s was exploited to form robust hydrogel networks
cross-linked using reversible physical bonds. Oscillatory rheology
showed that these hydrogels recovered more than 100% of their initial
storage modulus after severe network destruction. The versatile synthesis
of alendronate-functionalized polymers and their strong and tunable
affinity for calcium cations render these polymers promising candidates
for various biomedical applications.
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Affiliation(s)
- María J Sánchez-Fernández
- Department of Bio-Organic Chemistry, Institute for Molecules and Materials , Radboud University , 6525 AJ Nijmegen , the Netherlands.,Department of Regenerative Biomaterials , Radboudumc , 6525 EX Nijmegen , the Netherlands
| | - Mikey R Immers
- Department of Bio-Organic Chemistry, Institute for Molecules and Materials , Radboud University , 6525 AJ Nijmegen , the Netherlands
| | - Rosa P Félix Lanao
- Department of Bio-Organic Chemistry, Institute for Molecules and Materials , Radboud University , 6525 AJ Nijmegen , the Netherlands
| | - Fang Yang
- Department of Regenerative Biomaterials , Radboudumc , 6525 EX Nijmegen , the Netherlands
| | | | - Jasmin Mecinović
- Department of Bio-Organic Chemistry, Institute for Molecules and Materials , Radboud University , 6525 AJ Nijmegen , the Netherlands
| | | | - Jan C M van Hest
- Department of Bio-Organic Chemistry, Institute for Molecules and Materials , Radboud University , 6525 AJ Nijmegen , the Netherlands.,Department of Bio-Organic Chemistry, Institute for Complex Molecular Systems , Eindhoven University of Technology , 5600 MB Eindhoven , the Netherlands
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90
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Svoboda J, Sedláček O, Riedel T, Hrubý M, Pop-Georgievski O. Poly(2-oxazoline)s One-Pot Polymerization and Surface Coating: From Synthesis to Antifouling Properties Out-Performing Poly(ethylene oxide). Biomacromolecules 2019; 20:3453-3463. [DOI: 10.1021/acs.biomac.9b00751] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jan Svoboda
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Ondřej Sedláček
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Tomáš Riedel
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Martin Hrubý
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Ognen Pop-Georgievski
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
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91
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Rychter P, Christova D, Lewicka K, Rogacz D. Ecotoxicological impact of selected polyethylenimines toward their potential application as nitrogen fertilizers with prolonged activity. CHEMOSPHERE 2019; 226:800-808. [PMID: 30965251 DOI: 10.1016/j.chemosphere.2019.03.128] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 05/06/2023]
Abstract
Poly(2-oxazoline) polymers have found extensive application in the preparation of microcapsules for biomedical purposes. However, there is a scarcity of information related to their ecotoxicological assessment. Therefore, in this study, we focused on the ecotoxicity of selected polyethylenimines (PEIs) including poly(2-ethyl-2-oxazoline) (PEtOx) as an N-acyl-substituted PEI, linear polyethylenimine (LPEI) and branched polyethylenimine (BPEI). Oat (a monocotyledon) (Avena sativa) and radish (a dicotyledon) (Raphanus sativus) were selected as the representative plants, which are recommended by the Organization for Economic Cooperation and Development (OECD) 208 as the standard to test for plant growth. Shoot and root length, fresh and dry matter, level of total nitrogen in green parts of the plants, as well as total chlorophyll and carotenoids were determined. Phytotoxicity of all the tested parameters was dependent on the concentration of the examined polymers in the soil as well as on the time of their incubation in the soil. According to our results, the amount of nitrogen in green parts of the plants was increased compared to the control plants, which revealed the uptake of the plant-available form of nitrogen released from the tested PEIs. This was especially true for the plants treated with LPEI. Ecotoxicological impact of the incubated polymers in the soil against marine bacteria Allivibrio fischeri proved that, the all tested polyethylenimines may be classified as not harmful to aquatic microorganisms.
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Affiliation(s)
- Piotr Rychter
- Faculty of Mathematics and Natural Science, Jan Długosz University in Częstochowa, 13/15 Armii Krajowej Av., 42-200, Częstochowa, Poland.
| | - Darinka Christova
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 103-A, BG-1113, Sofia, Bulgaria
| | - Kamila Lewicka
- Faculty of Mathematics and Natural Science, Jan Długosz University in Częstochowa, 13/15 Armii Krajowej Av., 42-200, Częstochowa, Poland
| | - Diana Rogacz
- Faculty of Mathematics and Natural Science, Jan Długosz University in Częstochowa, 13/15 Armii Krajowej Av., 42-200, Częstochowa, Poland
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92
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Abilova GK, Kaldybekov DB, Ozhmukhametova EK, Saimova AZ, Kazybayeva DS, Irmukhametova GS, Khutoryanskiy VV. Chitosan/poly(2-ethyl-2-oxazoline) films for ocular drug delivery: Formulation, miscibility, in vitro and in vivo studies. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.04.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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93
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Arraez FJ, Xu X, Van Steenberge PHM, Jerca VV, Hoogenboom R, D’hooge DR. Macropropagation Rate Coefficients and Branching Levels in Cationic Ring-Opening Polymerization of 2-Ethyl-2-oxazoline through Prediction of Size Exclusion Chromatography Data. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00544] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Francisco J. Arraez
- Laboratory for Chemical Technology (LCT), Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Xiaowen Xu
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
| | - Paul H. M. Van Steenberge
- Laboratory for Chemical Technology (LCT), Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Valentin-Victor Jerca
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
- Centre of Organic Chemistry “Costin D. Nenitzescu” Romanian Academy, Spl. Independentei 202B, 060023 Bucharest, Romania
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
| | - Dagmar R. D’hooge
- Laboratory for Chemical Technology (LCT), Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
- Centre for Textile Science and Engineering, Ghent University, Technologiepark 70A, B-9052 Ghent, Belgium
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94
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Zhang H, Sun Y, Zhou T, Yu Q, Yang Z, Cai Z, Cang H. Poly(2-oxazoline)-based nanoparticles with aggregation-induced emission (AIE) for targeted cell imaging. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2018.1525550] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Huaihong Zhang
- School of Chemistry and Biology, Yancheng Institute of Technology, Yancheng, China
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing, China
| | - Yu Sun
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing, China
| | - Tao Zhou
- School of Chemistry and Biology, Yancheng Institute of Technology, Yancheng, China
| | - Qing Yu
- School of Chemistry and Biology, Yancheng Institute of Technology, Yancheng, China
| | - Zhenqing Yang
- School of Chemistry and Biology, Yancheng Institute of Technology, Yancheng, China
| | - Zhaosheng Cai
- School of Chemistry and Biology, Yancheng Institute of Technology, Yancheng, China
| | - Hui Cang
- School of Chemistry and Biology, Yancheng Institute of Technology, Yancheng, China
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95
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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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96
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Jirak D, Galisova A, Kolouchova K, Babuka D, Hruby M. Fluorine polymer probes for magnetic resonance imaging: quo vadis? MAGMA (NEW YORK, N.Y.) 2019; 32:173-185. [PMID: 30498886 PMCID: PMC6514090 DOI: 10.1007/s10334-018-0724-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/19/2018] [Accepted: 11/21/2018] [Indexed: 12/26/2022]
Abstract
Over the last few years, the development and relevance of 19F magnetic resonance imaging (MRI) for use in clinical practice has emerged. MRI using fluorinated probes enables the achievement of a specific signal with high contrast in MRI images. However, to ensure sufficient sensitivity of 19F MRI, fluorine probes with a high content of chemically equivalent fluorine atoms are required. The majority of 19F MRI agents are perfluorocarbon emulsions, which have a broad range of applications in molecular imaging, although the content of fluorine atoms in these molecules is limited. In this review, we focus mainly on polymer probes that allow higher fluorine content and represent versatile platforms with properties tailorable to a plethora of biomedical in vivo applications. We discuss the chemical development, up to the first imaging applications, of these promising fluorine probes, including injectable polymers that form depots that are intended for possible use in cancer therapy.
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Affiliation(s)
- Daniel Jirak
- Institute for Clinical and Experimental Medicine, Vídeňská 9, 140 21, Prague 4, Czech Republic.
- Institute of Biophysics and Informatics, 1st Medicine Faculty, Charles University, Salmovská 1, 120 00, Prague, Czech Republic.
- Faculty of Health Studies, Technical University of Liberec, Studentská 1402/2, 461 17, Liberec 1, Czech Republic.
| | - Andrea Galisova
- Institute for Clinical and Experimental Medicine, Vídeňská 9, 140 21, Prague 4, Czech Republic
| | - Kristyna Kolouchova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského sq. 2, 162 06, Prague 6, Czech Republic
| | - David Babuka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského sq. 2, 162 06, Prague 6, Czech Republic
| | - Martin Hruby
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského sq. 2, 162 06, Prague 6, Czech Republic
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97
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Sedlacek O, Monnery BD, Hoogenboom R. Synthesis of defined high molar mass poly(2-methyl-2-oxazoline). Polym Chem 2019. [DOI: 10.1039/c9py00013e] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this communication, we report for the first time the synthesis of defined high molar mass poly(2-methyl-2-oxazoline) (PMeOx), a water-soluble polymer with excellent anti-fouling properties.
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Affiliation(s)
- Ondrej Sedlacek
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- B-9000 Ghent
| | - Bryn D. Monnery
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- B-9000 Ghent
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- B-9000 Ghent
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98
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Sedlacek O, Bera D, Hoogenboom R. Poly(2-amino-2-oxazoline)s: a new class of thermoresponsive polymers. Polym Chem 2019. [DOI: 10.1039/c9py00943d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this report, we describe the synthesis and properties of poly(2-dialkylamino-2-oxazoline)s (PAmOx), a new class of thermoresponsive polymers.
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Affiliation(s)
- Ondrej Sedlacek
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- B-9000 Ghent
| | - Debaditya Bera
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- B-9000 Ghent
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- B-9000 Ghent
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99
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Lee J, Park JM, Jang WD. Fructose-sensitive thermal transition behaviour of boronic ester-bearing telechelic poly(2-isopropyl-2-oxazoline). Chem Commun (Camb) 2019; 55:3343-3346. [DOI: 10.1039/c8cc09835b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Boronic ester-bearing telechelic poly(2-isopropyl-2-oxazoline) (B-PiPrOx-B) exhibited a hydrophilic–hydrophobic phase transition near human-body temperature in aqueous media.
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Affiliation(s)
- Jiyoung Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Jong Min Park
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Woo-Dong Jang
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
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100
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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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