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Ray P, Sedigh A, Confeld M, Alhalhooly L, Iduoku K, Casanola-Martin GM, Pham-The H, Rasulev B, Choi Y, Yang Z, Mallik S, Quadir M. Design and Evaluation of Nanoscale Materials with Programmed Responsivity towards Epigenetic Enzymes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.26.585429. [PMID: 38586020 PMCID: PMC10996597 DOI: 10.1101/2024.03.26.585429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Self-assembled materials capable of modulating their assembly properties in response to specific enzymes play a pivotal role in advancing 'intelligent' encapsulation platforms for biotechnological applications. Here, we introduce a previously unreported class of synthetic nanomaterials that programmatically interact with histone deacetylase (HDAC) as the triggering stimulus for disassembly. These nanomaterials consist of co-polypeptides comprising poly (acetyl L-lysine) and poly(ethylene glycol) blocks. Under neutral pH conditions, they self-assemble into particles. However, their stability is compromised upon exposure to HDACs, depending on enzyme concentration and exposure time. Our investigation, utilizing HDAC8 as the model enzyme, revealed that the primary mechanism behind disassembly involves a decrease in amphiphilicity within the block copolymer due to the deacetylation of lysine residues within the particles' hydrophobic domains. To elucidate the response mechanism, we encapsulated a fluorescent dye within these nanoparticles. Upon incubation with HDAC, the nanoparticle structure collapsed, leading to controlled release of the dye over time. Notably, this release was not triggered by denatured HDAC8, other proteolytic enzymes like trypsin, or the co-presence of HDAC8 and its inhibitor. We further demonstrated the biocompatibility and cellular effects of these materials and conducted a comprehensive computational study to unveil the possible interaction mechanism between enzymes and particles. By drawing parallels to the mechanism of naturally occurring histone proteins, this research represents a pioneering step toward developing functional materials capable of harnessing the activity of epigenetic enzymes such as HDACs.
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Otrin N, Otrin L, Bednarz C, Träger TK, Hamdi F, Kastritis PL, Ivanov I, Sundmacher K. Protein-Rich Rafts in Hybrid Polymer/Lipid Giant Unilamellar Vesicles. Biomacromolecules 2024; 25:778-791. [PMID: 38190609 PMCID: PMC10865357 DOI: 10.1021/acs.biomac.3c00972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 01/10/2024]
Abstract
Considerable attention has been dedicated to lipid rafts due to their importance in numerous cell functions such as membrane trafficking, polarization, and signaling. Next to studies in living cells, artificial micrometer-sized vesicles with a minimal set of components are established as a major tool to understand the phase separation dynamics and their intimate interplay with membrane proteins. In parallel, mixtures of phospholipids and certain amphiphilic polymers simultaneously offer an interface for proteins and mimic this segregation behavior, presenting a tangible synthetic alternative for fundamental studies and bottom-up design of cellular mimics. However, the simultaneous insertion of complex and sensitive membrane proteins is experimentally challenging and thus far has been largely limited to natural lipids. Here, we present the co-reconstitution of the proton pump bo3 oxidase and the proton consumer ATP synthase in hybrid polymer/lipid giant unilamellar vesicles (GUVs) via fusion/electroformation. Variations of the current method allow for tailored reconstitution protocols and control of the vesicle size. In particular, mixing of protein-free and protein-functionalized nanosized vesicles in the electroformation film results in larger GUVs, while separate reconstitution of the respiratory enzymes enables higher ATP synthesis rates. Furthermore, protein labeling provides a synthetic mechanism for phase separation and protein sequestration, mimicking lipid- and protein-mediated domain formation in nature. The latter means opens further possibilities for re-enacting phenomena like supercomplex assembly or symmetry breaking and enriches the toolbox of bottom-up synthetic biology.
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Affiliation(s)
- Nika Otrin
- Process
Systems Engineering, Max Planck Institute
for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany
| | - Lado Otrin
- Process
Systems Engineering, Max Planck Institute
for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany
| | - Claudia Bednarz
- Process
Systems Engineering, Max Planck Institute
for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany
| | - Toni K. Träger
- Interdisciplinary
Research Center HALOmem and Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, Biozentrum, 06120 Halle/Saale, Germany
| | - Farzad Hamdi
- Interdisciplinary
Research Center HALOmem and Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, Biozentrum, 06120 Halle/Saale, Germany
| | - Panagiotis L. Kastritis
- Interdisciplinary
Research Center HALOmem and Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, Biozentrum, 06120 Halle/Saale, Germany
- Institute
of Chemical Biology, National Hellenic Research
Foundation, 11635 Athens, Greece
| | - Ivan Ivanov
- Process
Systems Engineering, Max Planck Institute
for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany
- Grup
de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrassa, Spain
| | - Kai Sundmacher
- Process
Systems Engineering, Max Planck Institute
for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany
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Martin A, Lalanne P, Weber-Vax A, Mutschler A, Lecommandoux S. Controlling Polymersome Size through Microfluidic-Assisted Self-Assembly: Enabling 'Ready to Use' formulations for biological applications. Int J Pharm 2023:123157. [PMID: 37348574 DOI: 10.1016/j.ijpharm.2023.123157] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023]
Abstract
The self-assembly of poly(ethylene glycol)-block-poly(trimethylene carbonate) PEG-b-PTMC copolymers into vesicles, also referred as polymersomes, was evaluated by solvent displacement using microfluidic systems. Two microfluidic chips with different flow regimes (micromixer and Herringbone) were used and the impact of process conditions on vesicle formation was evaluated. As polymersomes are sensitive to osmotic variations, their preparation under conditions allowing their direct use in biological medium is of major importance. We therefore developed a solvent exchange approach from DMSO (Dimethylsulfoxide) to aqueous media with an osmolarity of 300 mOsm.L-1, allowing their direct use for biological evaluation. We evidenced that the organic/aqueous solvent ratio does not impact vesicle size, but the total flow rate and copolymer concentration have been observed to influence the size of polymersomes. Finally, nanoparticles with diameters ranging from 76 nm to 224 nm were confirmed to be vesicles through the use of multi-angle light scattering in combination with cryo-TEM (Cryo-Transmission Electron Microscopy) characterization.
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Affiliation(s)
- Anouk Martin
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600 Pessac, France
| | - Pierre Lalanne
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600 Pessac, France
| | - Amélie Weber-Vax
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600 Pessac, France
| | - Angela Mutschler
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600 Pessac, France
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Gouveia MG, Wesseler JP, Ramaekers J, Weder C, Scholten PBV, Bruns N. Polymersome-based protein drug delivery - quo vadis? Chem Soc Rev 2023; 52:728-778. [PMID: 36537575 PMCID: PMC9890519 DOI: 10.1039/d2cs00106c] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Indexed: 12/24/2022]
Abstract
Protein-based therapeutics are an attractive alternative to established therapeutic approaches and represent one of the fastest growing families of drugs. While many of these proteins can be delivered using established formulations, the intrinsic sensitivity of proteins to denaturation sometimes calls for a protective carrier to allow administration. Historically, lipid-based self-assembled structures, notably liposomes, have performed this function. After the discovery of polymersome-based targeted drug-delivery systems, which offer manifold advantages over lipid-based structures, the scientific community expected that such systems would take the therapeutic world by storm. However, no polymersome formulations have been commercialised. In this review article, we discuss key obstacles for the sluggish translation of polymersome-based protein nanocarriers into approved pharmaceuticals, which include limitations imparted by the use of non-degradable polymers, the intricacies of polymersome production methods, and the complexity of the in vivo journey of polymersomes across various biological barriers. Considering this complex subject from a polymer chemist's point of view, we highlight key areas that are worthy to explore in order to advance polymersomes to a level at which clinical trials become worthwhile and translation into pharmaceutical and nanomedical applications is realistic.
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Affiliation(s)
- Micael G Gouveia
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Justus P Wesseler
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Jobbe Ramaekers
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Christoph Weder
- Adolphe Merkle Institute, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
| | - Philip B V Scholten
- Adolphe Merkle Institute, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
| | - Nico Bruns
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK
- Department of Chemistry, Technical University of Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany.
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5
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Novel 3D printed shape-memory PLLA-TMC/GA-TMC scaffolds for bone tissue engineering with the improved mechanical properties and degradability. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Jiang Y, Jiang Z, Wang M, Ma L. Current understandings and clinical translation of nanomedicines for breast cancer therapy. Adv Drug Deliv Rev 2022; 180:114034. [PMID: 34736986 DOI: 10.1016/j.addr.2021.114034] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/20/2021] [Accepted: 10/28/2021] [Indexed: 02/08/2023]
Abstract
Breast cancer is one of the most frequently diagnosed cancers that is threatening women's life. Current clinical treatment regimens for breast cancer often involve neoadjuvant and adjuvant systemic therapies, which somewhat are associated with unfavorable features. Also, the heterogeneous nature of breast cancers requires precision medicine that cannot be fulfilled by a single type of systemically administered drug. Taking advantage of the nanocarriers, nanomedicines emerge as promising therapeutic agents for breast cancer that could resolve the defects of drugs and achieve precise drug delivery to almost all sites of primary and metastatic breast tumors (e.g. tumor vasculature, tumor stroma components, breast cancer cells, and some immune cells). Seven nanomedicines as represented by Doxil® have been approved for breast cancer clinical treatment so far. More nanomedicines including both non-targeting and active targeting nanomedicines are being evaluated in the clinical trials. However, we have to realize that the translation of nanomedicines, particularly the active targeting nanomedicines is not as successful as people have expected. This review provides a comprehensive landscape of the nanomedicines for breast cancer treatment, from laboratory investigations to clinical applications. We also highlight the key advances in the understanding of the biological fate and the targeting strategies of breast cancer nanomedicine and the implications to clinical translation.
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Yadav N, Dahiya T, Chhillar AK, Rana JS, Mohan H. Promising Applications of Nanotechnology in Cancer Diagnostics and Therapeutics. Curr Pharm Biotechnol 2021; 23:1556-1568. [PMID: 34951360 DOI: 10.2174/1389201023666211222165508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/12/2021] [Accepted: 11/19/2021] [Indexed: 11/22/2022]
Abstract
Cancer is characterized by the accumulation of genetic mutations in cells by different types of mutagens such as physical, chemical, and biological. Consequently, normal cell cycles get interrupted. Conventional techniques used for diagnosis include. Various conventional techniques used for cancer diagnosis include immunological assays, histopathogical tests, polymerase chain reaction, computed tomography, magnetic resonance, radiation therapy, and many more. These techniques are expensive, time consuming, tedious, adverse effects to healthy cells and requirement of skilled personnel for their operation. Therefore nanomaterials based biosensors have been used for the sensitive, selective, economic and quick detection of cancer biomarkers. Electrochemical biosensors have shown profound impact in efficient diagnosis of cancers that facilitate the effective treatment of patient in acute stage. Nanomaterials including inorganic, organic and polymeric nanomaterials have been used in the treatment of different types of cancers. Nanoapproaches have offered several merits including site-specific, require traces amount of therapeutic molecules, limited toxicity, avoid drug resistance, more efficient, sensitive and reliable than conventional chemotherapeutics and radiation therapies. Therefore, future research should be focussed on development of highly inventive nanotools for the diagnosis and therapeutics of cancers.
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Affiliation(s)
- Neelam Yadav
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, -131039, Haryana. India
| | - Twinkle Dahiya
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, -131039, Haryana. India
| | - Anil Kumar Chhillar
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak-124001, Haryana. India
| | - Jogender Singh Rana
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, -131039, Haryana. India
| | - Hari Mohan
- Centre for Medical Biotechnology, Maharshi Dayanand University, Rohtak-124001, Haryana. India
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8
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Bilal M, Hussain N, Américo-Pinheiro JHP, Almulaiky YQ, Iqbal HMN. Multi-enzyme co-immobilized nano-assemblies: Bringing enzymes together for expanding bio-catalysis scope to meet biotechnological challenges. Int J Biol Macromol 2021; 186:735-749. [PMID: 34271049 DOI: 10.1016/j.ijbiomac.2021.07.064] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/23/2021] [Accepted: 07/10/2021] [Indexed: 02/06/2023]
Abstract
Co-immobilization of multi-enzymes has emerged as a promising concept to design and signify bio-catalysis engineering. Undoubtedly, the existence and importance of basic immobilization methods such as encapsulation, covalent binding, cross-linking, or even simple adsorption cannot be ignored as they are the core of advanced co-immobilization strategies. Different strategies have been developed and deployed to green the twenty-first century bio-catalysis. Moreover, co-immobilization of multi-enzymes has successfully resolved the limitations of individual enzyme loaded constructs. With an added value of this advanced bio-catalysis engineering platform, designing, and fabricating co-immobilized enzymes loaded nanostructure carriers to perform a particular set of reactions with high catalytic turnover is of supreme interest. Herein, we spotlight the emergence of co-immobilization strategies by bringing multi-enzymes together with various types of nanocarriers to expand the bio-catalysis scope. Following a brief introduction, the first part of the review focuses on multienzyme co-immobilization strategies, i.e., random co-immobilization, compartmentalization, and positional co-immobilization. The second part comprehensively covers four major categories of nanocarriers, i.e., carbon based nanocarriers, polymer based nanocarriers, silica-based nanocarriers, and metal-based nanocarriers along with their particular examples. In each section, several critical factors that can affect the performance and successful deployment of co-immobilization of enzymes are given in this work.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Nazim Hussain
- Centre for Applied Molecular Biology (CAMB), University of the Punjab, Lahore 53700, Pakistan
| | | | - Yaaser Q Almulaiky
- University of Jeddah, College of Sciences and Arts at Khulais, Department of Chemistry, Jeddah, Saudi Arabia; Chemistry Department, Faculty of Applied Science, Taiz University, Taiz, Yemen
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico.
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Torres J, Dhas N, Longhi M, García MC. Overcoming Biological Barriers With Block Copolymers-Based Self-Assembled Nanocarriers. Recent Advances in Delivery of Anticancer Therapeutics. Front Pharmacol 2020; 11:593197. [PMID: 33329001 PMCID: PMC7734332 DOI: 10.3389/fphar.2020.593197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/15/2020] [Indexed: 11/21/2022] Open
Abstract
Cancer is one of the most common life-threatening illness and it is the world's second largest cause of death. Chemotherapeutic anticancer drugs have many disadvantages, which led to the need to develop novel strategies to overcome these shortcomings. Moreover, tumors are heterogenous in nature and there are various biological barriers that assist in treatment reisistance. In this sense, nanotechnology has provided new strategies for delivery of anticancer therapeutics. Recently, delivery platforms for overcoming biological barriers raised by tumor cells and tumor-bearing hosts have been reported. Among them, amphiphilic block copolymers (ABC)-based self-assembled nanocarriers have attracted researchers worldwide owing to their unique properties. In this work, we addressed different biological barriers for effective cancer treatment along with several strategies to overcome them by using ABC-based self-assembled nanostructures, with special emphasis in those that have the ability to act as responsive nanocarriers to internal or external environmental clues to trigger release of the payload. These nanocarriers have shown promising properties to revolutionize cancer treatment and diagnosis, but there are still challenges for their successful translation to clinical applications.
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Affiliation(s)
- Jazmin Torres
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Namdev Dhas
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad, India
| | - Marcela Longhi
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| | - Mónica C. García
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
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10
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Hannecart A, Stanicki D, Vander Elst L, Muller RN, Brûlet A, Sandre O, Schatz C, Lecommandoux S, Laurent S. Embedding of superparamagnetic iron oxide nanoparticles into membranes of well-defined poly(ethylene oxide)-block-poly(ε-caprolactone) nanoscale magnetovesicles as ultrasensitive MRI probes of membrane bio-degradation. J Mater Chem B 2020; 7:4692-4705. [PMID: 31364686 DOI: 10.1039/c9tb00909d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The present study reports the preparation of poly(ethylene oxide)-block-poly(ε-caprolactone) (PEO-b-PCL) polymer vesicles via a nanoprecipitation method and the loading of two different size hydrophobically coated ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles (a magnetic core size of 4.2 nm and 7.6 nm) into the membrane of these nanovesicles, whose thickness was measured precisely by small angle neutron scattering (SANS). Spherical nano-assemblies with a high USPIO payload and a diameter close to 150 nm were obtained as confirmed by dynamic light scattering (DLS), transmission electron microscopy (TEM) and cryo-TEM. The vesicular structure of these hybrid nano-assemblies was confirmed by multi-angle light scattering (MALS) measurements. Their magnetic properties were evaluated by T1 and T2 measurements (20 and 60 MHz) and by nuclear magnetic relaxation dispersion (NMRD) profiles. The size of USPIO entrapped in the membranes of PEO-b-PCL vesicles has a strong impact on their magnetic properties. It affects both their longitudinal and their transverse relaxivities and thus their magnetic resonance imaging (MRI) sensitivity. Acid-catalyzed hydrolysis of the PCL membrane also influences their relaxivities as shown by measurements carried out at pH 7 vs. pH 5. This property was used to monitor the membrane hydrolytic degradation in vitro, as a proof of concept of potential monitoring of drug delivery by nanomedicines in vivo and non-invasively, by MRI.
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Affiliation(s)
- Adeline Hannecart
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium.
| | - Dimitri Stanicki
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium.
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium.
| | - Robert N Muller
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium. and Center for Microscopy and Molecular Imaging, 8 rue Adrienne Bolland, B-6041 Charleroi, Belgium
| | - Annie Brûlet
- Laboratoire Léon Brillouin, CNRS, CEA, Univ. Paris-Saclay, UMR12, F-91191 Gif sur Yvette, France
| | - Olivier Sandre
- Laboratoire de Chimie des Polymères Organiques, Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33607 Pessac, France
| | - Christophe Schatz
- Laboratoire de Chimie des Polymères Organiques, Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33607 Pessac, France
| | - Sébastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33607 Pessac, France
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium. and Center for Microscopy and Molecular Imaging, 8 rue Adrienne Bolland, B-6041 Charleroi, Belgium
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Nishimura T, Shishi S, Sasaki Y, Akiyoshi K. Thermoresponsive Polysaccharide Graft Polymer Vesicles with Tunable Size and Structural Memory. J Am Chem Soc 2020; 142:11784-11790. [PMID: 32506909 DOI: 10.1021/jacs.0c02290] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Controlling polymer vesicle size is difficult and a major obstacle for their potential use in biomedical applications, such as drug-delivery carriers and nanoreactors. Herein, we report size-tunable polymer vesicles based on self-assembly of a thermoresponsive amphiphilic graft copolymer. Unilamellar polymer vesicles form upon heating chilled polymer solutions, and vesicle size can be tuned in the range of 40-70 nm by adjusting the initial polymer concentration. Notably, the polymer can reversibly switch between a monomer state and a vesicle state in accordance with a cooling/heating cycle, which changes neither the size nor the size distribution of the vesicles. This lack of change suggests that the polymer memorizes a particular vesicle conformation. Given our vesicles' size tunability and structural memory, our research considerably expands the fundamental and practical scope of thermoresponsive amphiphilic graft copolymers and renders amphiphilic graft copolymers useful tools for synthesizing functional self-assembled materials.
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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
| | - Shen Shishi
- 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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12
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Chen S, Qin J, Du J. Two Principles for Polymersomes with Ultrahigh Biomacromolecular Loading Efficiencies: Acid-Induced Adsorption and Affinity-Enhanced Attraction. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00252] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shuai Chen
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jianglei Qin
- College of Chemistry and Environmental Science, Hebei University, 180 East Wusi Road, Baoding 071002, China
| | - Jianzhong Du
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
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13
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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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14
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Garcia EA, Pessoa D, Herrera-Alonso M. Oxidative instability of boronic acid-installed polycarbonate nanoparticles. SOFT MATTER 2020; 16:2473-2479. [PMID: 32043107 DOI: 10.1039/c9sm02499a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Oxidative stress, caused by the overproduction of reactive oxygen species (ROS), is often observed in degenerative and/or metabolic diseases, tumors, and inflamed tissues. Boronic acids are emerging as a unique class of responsive biomaterials targeting ROS because of their reactivity toward H2O2. Herein, we examine the oxidative reactivity of nanoparticles from a boronic acid-installed polycarbonate. The extent of oxidation under different concentrations of H2O2 was tracked by the change in fluorescence intensity of an encapsulated solvatochromic reporter dye, demonstrating their sensitivity to biologically-relevant concentrations of hydrogen peroxide. Oxidation-triggered particle destabilization, however, was shown to be highly dependent on the concentration of the final oxidized polymer product, and was only achieved if it fell below polymer critical micelle concentration. Our results indicate that these nanocarriers serve as an excellent dual pH/H2O2 responsive vehicle for drug delivery.
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Affiliation(s)
- Elena Alexandra Garcia
- Department of Chemical and Biological Engineering, School of Advanced Materials Discovery, Colorado State University, Fort Collins, Colorado 80523, USA.
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15
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Iqbal S, Blenner M, Alexander-Bryant A, Larsen J. Polymersomes for Therapeutic Delivery of Protein and Nucleic Acid Macromolecules: From Design to Therapeutic Applications. Biomacromolecules 2020; 21:1327-1350. [DOI: 10.1021/acs.biomac.9b01754] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shoaib Iqbal
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
- Department of Bioengineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Mark Blenner
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Angela Alexander-Bryant
- Department of Bioengineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Jessica Larsen
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
- Department of Bioengineering, Clemson University, Clemson, South Carolina 29634, United States
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16
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Lebleu C, Rodrigues L, Guigner JM, Brûlet A, Garanger E, Lecommandoux S. Self-Assembly of PEG- b-PTMC Copolymers: Micelles and Polymersomes Size Control. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13364-13374. [PMID: 31550897 DOI: 10.1021/acs.langmuir.9b02264] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Poly(ethylene glycol)45-b-poly(trimethylene carbonate)n PEG45-b-PTMCn diblock copolymers were synthesized with five different PTMC degrees of polymerization (n = 38, 96, 144, 170, 332) and their self-assembly properties in water were studied using a manual nanoprecipitation procedure. We confirmed that the copolymer's hydrophilic weight fraction (fPEG) is controlling nanoparticles morphology. We determined that the PEG45-b-PTMC96 with fPEG ≈ 17% is the optimal hydrophilic fraction for the stabilization of well-defined unilamellar vesicles with a membrane thickness of δ ≈ 14.6 nm. Maintaining this fraction constant and modulating the overall molar mass of the block copolymers allowed the establishment of a power law of [Formula: see text] which provides a robust correlation between the molar mass of PTMC and vesicles' membrane thickness. Finally, we proved that controlling nanoprecipitation's conditions by microfluidics allowed fine-tuning and control of the nanoparticles size and polydispersity index while maintaining their shape with a perfect batch-to-batch reproducibility.
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Affiliation(s)
- Coralie Lebleu
- Université Bordeaux, CNRS , Bordeaux INP, LCPO, UMR 5629 , F-33600 , Pessac , France
| | - Laura Rodrigues
- Université Bordeaux, CNRS , Bordeaux INP, LCPO, UMR 5629 , F-33600 , Pessac , France
| | - Jean-Michel Guigner
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC) , Sorbonne Universités, IRD, CNRS UMR 7590, MNHN , 75252 Paris Cedex 05 , France
| | - Annie Brûlet
- Laboratoire Léon Brillouin (LLB) , CEA-Saclay, CNRS UMR 12 , 91191 Gif-sur-Yvette Cedex , France
| | - Elisabeth Garanger
- Université Bordeaux, CNRS , Bordeaux INP, LCPO, UMR 5629 , F-33600 , Pessac , France
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17
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Xiao Y, Chinoy ZS, Pecastaings G, Bathany K, Garanger E, Lecommandoux S. Design of Polysaccharide-b-Elastin-Like Polypeptide Bioconjugates and Their Thermoresponsive Self-Assembly. Biomacromolecules 2019; 21:114-125. [DOI: 10.1021/acs.biomac.9b01058] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ye Xiao
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Zoeisha S. Chinoy
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Gilles Pecastaings
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Katell Bathany
- Université de Bordeaux, CNRS, Bordeaux INP, Chimie et Biologie des Membranes et des Nano-objets (UMR 5248), Allée Geoffroy
Saint Hilaire, F-33600, Pessac, France
| | - Elisabeth Garanger
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
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18
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Rijpkema SJ, Toebes BJ, Maas MN, Kler NRM, Wilson DA. Designing Molecular Building Blocks for Functional Polymersomes. Isr J Chem 2019. [DOI: 10.1002/ijch.201900039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sjoerd J. Rijpkema
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - B. Jelle Toebes
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Marijn N. Maas
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
- Department of Physics, Chemistry and PharmacyUniversity of Southern Denmark Campusvej 55 5230 Odense Denmark
| | - Noël R. M. Kler
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Daniela A. Wilson
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
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19
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Albuquerque LJC, Sincari V, Ja Ger A, Konefa R, Pa Nek JI, C Ernoch P, Pavlova E, S Te Pa Nek P, Giacomelli FC, Ja Ger EZ. Microfluidic-Assisted Engineering of Quasi-Monodisperse pH-Responsive Polymersomes toward Advanced Platforms for the Intracellular Delivery of Hydrophilic Therapeutics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:8363-8372. [PMID: 31199159 DOI: 10.1021/acs.langmuir.9b01009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The extracellular and subcellular compartments are characterized by specific pH levels that can be modified by pathophysiological states. This scenario encourages the use of environmentally responsive nanomedicines for the treatment of damaged cells. We have engineered doxorubicin (DOX)-loaded pH-responsive polymersomes using poly([ N-(2-hydroxypropyl)]methacrylamide)- b-poly[2-(diisopropylamino)ethyl methacrylate] block copolymers (PHPMA m- b-PDPA n). We demonstrate that, by taking advantage of the microfluidic technology, quasi-monodisperse assemblies can be created. This feature is of due relevance because highly uniform nanoparticles commonly exhibit more consistent biodistribution and cellular uptake. We also report that the size of the polymer vesicles can be tuned by playing with the inherent mechanical parameters of the microfluidic protocol. This new knowledge can be used to engineer size-specific nanomedicines for enhanced tumor accumulation if the manufacturing is performed with previous knowledge of tumor characteristics (particularly the degree of vascularity and porosity). The pH-dependent DOX release was further investigated evidencing the ability of polymersome to sustain encapsulated hydrophilic molecules when circulating in physiological environment (pH 7.4). This suggests nonrelevant drug leakage during systemic circulation. On the other hand, polymersome disassembly in slightly acid environments takes place enabling fast DOX release, thereby making the colloidal carriers highly cytotoxic. These features encourage the use of such advanced pH-responsive platforms to target damaged cells while preserving healthy environments during systemic circulation.
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Affiliation(s)
- Lindomar J C Albuquerque
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
- Centro de Cie?ncias Naturais e Humanas , Universidade Federal do ABC , Avenida dos Estados 5001 , Santo Andre? 09210-580 , Brazil
| | - Vladimir Sincari
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
| | - Alessandro Ja Ger
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
| | - Rafal Konefa
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
| | - Jir I Pa Nek
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
| | - Peter C Ernoch
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
| | - Petr S Te Pa Nek
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
| | - Fernando C Giacomelli
- Centro de Cie?ncias Naturais e Humanas , Universidade Federal do ABC , Avenida dos Estados 5001 , Santo Andre? 09210-580 , Brazil
| | - Elie Zer Ja Ger
- Institute of Macromolecular Chemistry , Heyrovske?ho na?m. 2 , Prague 6 162 06 , Czech Republic
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20
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DiazDuarte-Rodriguez M, Cortez-Lemus NA, Licea-Claverie A, Licea-Rodriguez J, Méndez ER. Dual Responsive Polymersomes for Gold Nanorod and Doxorubicin Encapsulation: Nanomaterials with Potential Use as Smart Drug Delivery Systems. Polymers (Basel) 2019; 11:E939. [PMID: 31151188 PMCID: PMC6630455 DOI: 10.3390/polym11060939] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/12/2019] [Accepted: 05/12/2019] [Indexed: 12/19/2022] Open
Abstract
In the present study, poly(ethylene glycol)-b-poly(N,N-diethylaminoethyl methacrylate) (PEG-b-PDEAEM) amphiphilic block copolymers were synthetized by reversible addition-fragmentation chain transfer (RAFT) polymerization using two different macro chain transfer agents containing PEG of 2000 and 5000 g/mol and varying the length of the PDEAEM segment. From the obtained block copolymers, polymersome type nanometric aggregates were obtained by two different techniques. By direct dispersion, particle diameters around 200 nm were obtained, while by solvent exchange using THF and water, the obtained diameters were around 100 nm. These block copolymers were used to encapsulate gold nanorods and doxorubicin (DOX) with good efficiencies to obtain nanomaterials with potential use as dual stimuli-sensitive drug delivery systems for combined anticancer therapies. Drug delivery studies showed that the release rate of DOX was accelerated when the pH was lowered from 7.4 to 5.8 and also when the systems were irradiated with a NIR laser at pH 7.4. The combination of lower pH and near infrared (NIR) irradiation resulted in higher drug release only in the case of polymersomes with lower molecular weight PEG.
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Affiliation(s)
- Melissa DiazDuarte-Rodriguez
- Centro de Graduados e Investigación en Química. Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, A.P. 1166, C.P. 22000 Tijuana, B. C., México.
| | - Norma A Cortez-Lemus
- Centro de Graduados e Investigación en Química. Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, A.P. 1166, C.P. 22000 Tijuana, B. C., México.
| | - Angel Licea-Claverie
- Centro de Graduados e Investigación en Química. Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, A.P. 1166, C.P. 22000 Tijuana, B. C., México.
| | - Jacob Licea-Rodriguez
- División de Física Aplicada. Centro de Investigación Científica y de Educación Superior de Ensenada, Carr. Ensenada-Tijuana No. 3918, C.P. 22860 Ensenada, B. C., México.
- Cátedras Conacyt, Centro de Investigación Científica y de Educación Superior de Ensenada, 22860 Ensenada, B. C., México.
| | - Eugenio R Méndez
- División de Física Aplicada. Centro de Investigación Científica y de Educación Superior de Ensenada, Carr. Ensenada-Tijuana No. 3918, C.P. 22860 Ensenada, B. C., México.
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21
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Wang X, Yang R, Huang L, Li J, Liu Z. Preparation of starch-graft-poly(methyl methacrylate) via SET-LRP at molecular level and its self-assembly. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.04.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Wouters B, Pirok BW, Soulis D, Garmendia Perticarini RC, Fokker S, van den Hurk RS, Skolimowski M, Peters RA, Schoenmakers PJ. On-line microfluidic immobilized-enzyme reactors: A new tool for characterizing synthetic polymers. Anal Chim Acta 2019; 1053:62-69. [DOI: 10.1016/j.aca.2018.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/01/2018] [Accepted: 12/03/2018] [Indexed: 12/26/2022]
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23
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Triclosan loaded polyurethane micelles with pH and lipase sensitive properties for antibacterial applications and treatment of biofilms. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:921-930. [DOI: 10.1016/j.msec.2018.08.063] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/18/2017] [Accepted: 08/30/2018] [Indexed: 11/18/2022]
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24
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Polypeptides Micelles Composed of Methoxy-Poly(Ethylene Glycol)-Poly(l-Glutamic Acid)-Poly(l-Phenylalanine) Triblock Polymer for Sustained Drug Delivery. Pharmaceutics 2018; 10:pharmaceutics10040230. [PMID: 30428623 PMCID: PMC6321009 DOI: 10.3390/pharmaceutics10040230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/09/2018] [Accepted: 11/10/2018] [Indexed: 12/20/2022] Open
Abstract
Methoxy-poly(ethylene glycol)-poly(l-glutamic acid)-poly(l-phenylalanine) triblock polymers with different architecture were synthesized as drug carrier to obtain sustained and controlled release by tuning the composition. These triblock polymers were prepared by ring opening polymerization and poly(ethylene glycol) was used as an initiator. Polymerization was confirmed by 1H NMR, FT-IR and gel penetration chromatography. The polymers can self-assemble to form micelles in aqueous medium and their critical micelle concentrations values were examined. The micelles were spherical shape with size of 50–100 nm and especially can arranged in a regular manner. Sorafenib was selected as the model drug and the drug loading performance was dependent on the composition of the block copolymer. In vitro drug release indicated that the polymers can realize controlled and sustained drug release. Furthermore, in vitro cytotoxicity assay showed that the polymers were biocompatible and the drug-loaded micelles can increase toxicity towards tumor cells. Confocal fluorescence microscopy assays illustrated that the micelles can be uptaken quickly and release drug persistently to inhibit tumor cell growth.
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25
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Cao B, Xiao F, Xing D, Hu X. Polyprodrug Antimicrobials: Remarkable Membrane Damage and Concurrent Drug Release to Combat Antibiotic Resistance of Methicillin-Resistant Staphylococcus aureus. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802008. [PMID: 30118562 DOI: 10.1002/smll.201802008] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 07/28/2018] [Indexed: 05/14/2023]
Abstract
The increased threat of antibiotic resistance has created an urgent need for new strategies. Herein, polyprodrug antimicrobials are proposed to mimic antimicrobial peptides appended with a concurrent drug release property, exhibiting broad-spectrum antibacterial activity and especially high potency to inhibit methicillin-resistant Staphylococcus aureus (MRSA) without inducing resistance. Two series of polyprodrug antimicrobials are fabricated by facile polymerization of triclosan prodrug monomer (TMA) and subsequent quaternization of hydrophilic poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA), affording PDMAEMA-b-PTMA and PQDMA-b-PTMA, respectively. Optimized samples with proper hydrophobic ratio are screened out, which exhibit remarkable bacterial inhibition and low hemolysis toward red blood cells. Furthermore, synergistic antibacterial mechanisms contribute to the bacteria killing, including serious membrane damage, increased out-diffusion of cytosolic milieu across the membrane, and intracellular reductive milieu-mediated triclosan release. No detectable resistance is observed for polyprodrug antimicrobials against MRSA, which is demonstrated to be better than commercial triclosan and vancomycin against in vivo MRSA-infected burn models and a promising approach to the hurdle of antibiotic resistance in biomedicine.
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Affiliation(s)
- Bing Cao
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
- College of Biophotonics, South China Normal University, Guangzhou, 510631, China
| | - Fengfeng Xiao
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
- College of Biophotonics, South China Normal University, Guangzhou, 510631, China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
- College of Biophotonics, South China Normal University, Guangzhou, 510631, China
| | - Xianglong Hu
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
- College of Biophotonics, South China Normal University, Guangzhou, 510631, China
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26
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Liarou E, Varlas S, Skoulas D, Tsimblouli C, Sereti E, Dimas K, Iatrou H. Smart polymersomes and hydrogels from polypeptide-based polymer systems through α-amino acid N-carboxyanhydride ring-opening polymerization. From chemistry to biomedical applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.05.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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Placet E, Pinaud J, Gimello O, Lacroix-Desmazes P. UV-Initiated Ring Opening Polymerization of l-Lactide Using a Photobase Generator. ACS Macro Lett 2018; 7:688-692. [PMID: 35632978 DOI: 10.1021/acsmacrolett.8b00251] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photoinitiated ring-opening polymerization of l-lactide (L-LA) using a photobase generator (PBG) able to release 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) is reported. Polymerization using the PBG with ketoprofenate counteranion (TBDH+.keto-) was studied in dichloromethane either in the presence or in the absence of 1-butanol as initiator. In both cases, full monomer conversion was reached at room temperature after 10 min of irradiation at 254 nm. In the presence of 1-butanol, linear poly(L-LA) chains (PLA) were obtained, as confirmed by 1H NMR and MALDI-TOF analyses. The polymerization was well controlled as attested by the production of polymers with low dispersity (Đ < 1.26) and by the linear evolution of molecular weights with the quantity of initiator. Without 1-butanol, although MALDI-TOF analyses revealed cyclic PLA chains (actually formed in situ during MALDI-TOF analysis), linear PLA chains were formed as proven by 1H NMR, viscosity measurement, and phosphitylation titration. This fast and "on demand" polymerization opens the way to biodegradable UV coatings.
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Affiliation(s)
- Emeline Placet
- ICGM, ENSCM, Univ Montpellier, CNRS, 34296 Cedex 5, Montpellier, France
| | - Julien Pinaud
- ICGM, ENSCM, Univ Montpellier, CNRS, 34296 Cedex 5, Montpellier, France
| | - Olinda Gimello
- ICGM, ENSCM, Univ Montpellier, CNRS, 34296 Cedex 5, Montpellier, France
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28
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Landis RF, Li CH, Gupta A, Lee YW, Yazdani M, Ngernyuang N, Altinbasak I, Mansoor S, Khichi MAS, Sanyal A, Rotello VM. Biodegradable Nanocomposite Antimicrobials for the Eradication of Multidrug-Resistant Bacterial Biofilms without Accumulated Resistance. J Am Chem Soc 2018; 140:6176-6182. [PMID: 29709168 PMCID: PMC6044909 DOI: 10.1021/jacs.8b03575] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Infections caused by multidrug-resistant (MDR) bacteria are a rapidly growing threat to human health, in many cases exacerbated by their presence in biofilms. We report here a biocompatible oil-in-water cross-linked polymeric nanocomposite that degrades in the presence of physiologically relevant biomolecules. These degradable nanocomposites demonstrated broad-spectrum penetration and elimination of MDR bacteria, eliminating biofilms with no toxicity to cocultured mammalian fibroblast cells. Notably, serial passaging revealed that bacteria were unable to develop resistance toward these nanocomposites, highlighting the therapeutic promise of this platform.
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Affiliation(s)
- Ryan F. Landis
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Akash Gupta
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Yi-Wei Lee
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Mahdieh Yazdani
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Nipaporn Ngernyuang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Ismail Altinbasak
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey
| | - Sanaa Mansoor
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Muhammadaha A. S. Khichi
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
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29
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Zhang N, Chen H, Fan Y, Zhou L, Trépout S, Guo J, Li MH. Fluorescent Polymersomes with Aggregation-Induced Emission. ACS NANO 2018; 12:4025-4035. [PMID: 29617555 DOI: 10.1021/acsnano.8b01755] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fluorescent polymersomes are interesting systems for cell/tissue imaging and in vivo study of drug distribution and delivery. We report on bright fluorescent polymersomes with aggregation-induced emission self-assembled by a series of tetraphenylethylene (TPE)-containing amphiphilic biodegradable block copolymers, where the hydrophilic block is a polyethylene glycol and hydrophobic block is a TPE-substituted trimethylenecarbonate polymer P(TPE-TMC). Their self-assemblies in water were prepared by nanoprecipitation using dioxane or tetrahydrofuran as co-solvent, and the self-assembling processes were studied in detail by cryo-electron microscopy, dynamic light scattering, and spectrofluorometer. The polymersomes are formed via the closure of bilayer lamellae self-assembled first by amphiphilic block copolymers. The polymersome membrane affords a nanosize bright fluorescent system with self-assembly induced emission in the thickness scale of 10-15 nm. The control of the whole size of polymersome is achieved by the choice of co-solvent for self-assembling and by the design of a suitable hydrophilic/hydrophobic ratio of block copolymers. These polymersomes can be potentially used as a stable fluorescent tool to monitor the transportation and distribution of drugs and bioconjugates in living cells.
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Affiliation(s)
- Nian Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , 15 North Third Ring Road , Chaoyang District, 100029 Beijing , P. R. China
| | - Hui Chen
- Chimie ParisTech, PSL University Paris, CNRS, Institut de Recherche de Chimie Paris, and UMR8247 , 11 rue Pierre et Marie Curie , 75005 Paris , France
| | - Yujiao Fan
- Chimie ParisTech, PSL University Paris, CNRS, Institut de Recherche de Chimie Paris, and UMR8247 , 11 rue Pierre et Marie Curie , 75005 Paris , France
| | - Lu Zhou
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , 15 North Third Ring Road , Chaoyang District, 100029 Beijing , P. R. China
| | - Sylvain Trépout
- Institut Curie, INSERM U1196, and CNRS UMR9187 , 91405 Orsay cedex, France
| | - Jia Guo
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , 15 North Third Ring Road , Chaoyang District, 100029 Beijing , P. R. China
| | - Min-Hui Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , 15 North Third Ring Road , Chaoyang District, 100029 Beijing , P. R. China
- Chimie ParisTech, PSL University Paris, CNRS, Institut de Recherche de Chimie Paris, and UMR8247 , 11 rue Pierre et Marie Curie , 75005 Paris , France
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30
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Deng Y, Ling J, Li MH. Physical stimuli-responsive liposomes and polymersomes as drug delivery vehicles based on phase transitions in the membrane. NANOSCALE 2018; 10:6781-6800. [PMID: 29616274 DOI: 10.1039/c8nr00923f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper reviews liposomes with crystalline phase and polymersomes exhibiting crystalline and thermotropic liquid crystalline phases in the membrane. Intriguing morphologies of vesicles are described, including spherical, ellipsoidal and faceted vesicles, produced by a large variety of amphiphilic molecules and polymers with nematic phase, smectic phase or crystalline phase. It is highlighted how the phase transitions and the phase grain boundaries could be used ingeniously to destabilize the vesicular structure and to achieve cargo-release under the action of external stimulation. These liposomes and polymersomes are responsive to physical stimuli, such as temperature variation, shear stress, light illumination, and magnetic and electric fields. These stimuli-responsive properties make them promising candidates as new smart drug delivery systems.
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Affiliation(s)
- Yangwei Deng
- Chimie ParisTech, PSL University Paris, CNRS, Institut de Recherche de Chimie Paris, UMR8247, 11 rue Pierre et Marie Curie, 75005 Paris, France.
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31
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De Martino MT, Abdelmohsen LKEA, Rutjes FPJT, van Hest JCM. Nanoreactors for green catalysis. Beilstein J Org Chem 2018; 14:716-733. [PMID: 29719570 PMCID: PMC5905268 DOI: 10.3762/bjoc.14.61] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 03/13/2018] [Indexed: 12/13/2022] Open
Abstract
Sustainable and environmentally benign production are key drivers for developments in the chemical industrial sector, as protecting our planet has become a significant element that should be considered for every industrial breakthrough or technological advancement. As a result, the concept of green chemistry has been recently defined to guide chemists towards minimizing any harmful outcome of chemical processes in either industry or research. Towards greener reactions, scientists have developed various approaches in order to decrease environmental risks while attaining chemical sustainability and elegancy. Utilizing catalytic nanoreactors for greener reactions, for facilitating multistep synthetic pathways in one-pot procedures, is imperative with far-reaching implications in the field. This review is focused on the applications of some of the most used nanoreactors in catalysis, namely: (polymer) vesicles, micelles, dendrimers and nanogels. The ability and efficiency of catalytic nanoreactors to carry out organic reactions in water, to perform cascade reaction and their ability to be recycled will be discussed.
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Affiliation(s)
- M Teresa De Martino
- Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | | | - Floris P J T Rutjes
- Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Jan C M van Hest
- Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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32
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Gradišar Š, Žagar E, Pahovnik D. Hybrid block copolymers of polyesters/polycarbonates and polypeptides synthesized via one-pot sequential ring-opening polymerization. Polym Chem 2018. [DOI: 10.1039/c8py00835c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Polyester/polycarbonate-b-polypeptide hybrid block copolymers were synthesized by a sequential ring-opening polymerization in a one-pot manner.
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Affiliation(s)
- Špela Gradišar
- National Institute of Chemistry
- Department of Polymer Chemistry and Technology
- 1000 Ljubljana
- Slovenia
- University of Ljubljana
| | - Ema Žagar
- National Institute of Chemistry
- Department of Polymer Chemistry and Technology
- 1000 Ljubljana
- Slovenia
| | - David Pahovnik
- National Institute of Chemistry
- Department of Polymer Chemistry and Technology
- 1000 Ljubljana
- Slovenia
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33
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Poschenrieder ST, Hanzlik M, Castiglione K. Polymersome formation mechanism and formation rate in stirred-tank reactors. J Appl Polym Sci 2017. [DOI: 10.1002/app.46077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sarah T. Poschenrieder
- Institute of Biochemical Engineering, Technical University of Munich, Boltzmannstraße 15; Garching 85748 Germany
| | - Marianne Hanzlik
- Electron Microscopy, Technical University of Munich, Lichtenbergstraße 4; Garching 85748 Germany
| | - Kathrin Castiglione
- Institute of Biochemical Engineering, Technical University of Munich, Boltzmannstraße 15; Garching 85748 Germany
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34
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Salmanpour M, Tamaddon A, Yousefi G, Mohammadi-Samani S. "Grafting-from" synthesis and characterization of poly (2-ethyl-2-oxazoline)- b-poly (benzyl L-glutamate) micellar nanoparticles for potential biomedical applications. BIOIMPACTS : BI 2017; 7:155-166. [PMID: 29159143 PMCID: PMC5684507 DOI: 10.15171/bi.2017.19] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 08/26/2017] [Accepted: 08/28/2017] [Indexed: 12/20/2022]
Abstract
Introduction: Recent advances in the field of poly (2-oxazolines) as bio-inspired synthetic pseudopeptides have proven their potential biomedical applications such as drug delivery and tissue engineering. Methods: In order to fabricate a biodegradable micellar nanoparticle of poly (2-ethyl 2-oxazoline)-b-poly (benzyl L-glutamate) or pEOx-b-pBLG, "grafting-from" synthesis approach was used involving consecutive steps of cationic ring-opening polymerization of 2-ethyl-2-oxazoline, amine functionalization of pEOx using 1-Boc-piperazine and N-carboxyanhydride polymerization of γ-benzyl- L-glutamate. Following hydrolysis of the copolymer, the protecting γ-benzyl groups were removed yielding a double-hydrophilic block ionomer of pEOx-b-poly (L-glutamic acid). The polymers were characterized by FTIR, 1H-NMR, size exclusion chromatography and differential scanning calorimetry (DSC). Aqueous assembly of the polymers was investigated by pyrene assay, dynamic light scattering, and transmission electron microscopy. MTT cytotoxicity assay was also performed to determine the cytocompatibility in various tumor cell lines. Results: The polymeric micelles presented a uni-modal size distribution with mean hydrodynamic diameter of 149.8 ± 10.6 nm and critical aggregation concentration of 60 µg/mL. The average molecular weight of pEOx increased from ~ 14 to 20 kDa for pEOx-b-poly (L-glutamic acid) as determined by light scattering (Debye plot), indicating a successful copolymerization. MTT assay showed little to no practical cytotoxicity at concentrations below 1 mg/mL. Conclusion: Multi-step synthesis of pEOx-b-pBLG and subsequent alkaline hydrolysis were performed to obtain the block ionomer pEOx-b-poly (L-glutamic acid). Both pEOx-based copolymers can be considered for various potential applications such as loading and delivery of drugs, genes, and contrast agents either by chemical conjugation or physical loading.
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Affiliation(s)
- Mohsen Salmanpour
- Department of Pharmaceutics, Shiraz School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Tamaddon
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamhossein Yousefi
- Department of Pharmaceutics, Shiraz School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soliman Mohammadi-Samani
- Department of Pharmaceutics, Shiraz School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
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35
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Taabache S, Bertin A. Vesicles from Amphiphilic Dumbbells and Janus Dendrimers: Bioinspired Self-Assembled Structures for Biomedical Applications. Polymers (Basel) 2017; 9:E280. [PMID: 30970958 PMCID: PMC6432481 DOI: 10.3390/polym9070280] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/02/2017] [Accepted: 07/06/2017] [Indexed: 12/18/2022] Open
Abstract
The current review focuses on vesicles obtained from the self-assembly of two types of dendritic macromolecules, namely amphiphilic Janus dendrimers (forming dendrimersomes) and amphiphilic dumbbells. In the first part, we will present some synthetic strategies and the various building blocks that can be used to obtain dendritic-based macromolecules, thereby showing their structural versatility. We put our focus on amphiphilic Janus dendrimers and amphiphilic dumbbells that form vesicles in water but we also encompass vesicles formed thereof in organic solvents. The second part of this review deals with the production methods of these vesicles at the nanoscale but also at the microscale. Furthermore, the influence of various parameters (intrinsic to the amphiphilic JD and extrinsic-from the environment) on the type of vesicle formed will be discussed. In the third part, we will review the numerous biomedical applications of these vesicles of nano- or micron-size.
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Affiliation(s)
- Soraya Taabache
- Federal Institute for Materials Research and Testing (BAM), Department 6.0, D-12205 Berlin, Germany.
- Fraunhofer ICT-IMM, D-55129 Mainz, Germany.
| | - Annabelle Bertin
- Federal Institute for Materials Research and Testing (BAM), Department 6.0, D-12205 Berlin, Germany.
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, D-14195 Berlin, Germany.
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36
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Gradišar Š, Žagar E, Pahovnik D. Ring-Opening Polymerization of N-Carboxyanhydrides Initiated by a Hydroxyl Group. ACS Macro Lett 2017; 6:637-640. [PMID: 35650850 DOI: 10.1021/acsmacrolett.7b00379] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We report on a method for preparation of well-defined synthetic polypeptides by ring-opening polymerization (ROP) of α-amino acid N-carboxyanhydrides (NCA) initiated by a hydroxyl group. To overcome the issue of slow initiation by hydroxyl group, an acid catalyst was used in the initiation step to catalyze opening of the NCA ring by the hydroxyl group and to simultaneously suppress further chain propagation by protonation of the formed amine group. In this way, we have separated slow initiation from the fast chain propagation, since such a combination leads to poorly defined products, and instead performed them in a successive manner. Only after completion of the initiation, the propagation was started by the addition of a base to deprotonate the ammonium group. This method was successfully applied for the synthesis of homopolypeptides by using alcohol as an initiator as well as polypeptide-based block copolymers by using poly(ethylene glycol) or poly(styrene) macroinitiator terminated with the hydroxyl group. This approach not only expands the pool of possible initiators, but also significantly facilities the preparation of polypeptide-based hybrid polymers.
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Affiliation(s)
- Špela Gradišar
- National Institute of Chemistry, Department of Polymer Chemistry and Technology, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Ema Žagar
- National Institute of Chemistry, Department of Polymer Chemistry and Technology, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - David Pahovnik
- National Institute of Chemistry, Department of Polymer Chemistry and Technology, Hajdrihova 19, 1000 Ljubljana, Slovenia
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37
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Nakai K, Ishihara K, Yusa SI. Preparation of Giant Polyion Complex Vesicles (G-PICsomes) with Polyphosphobetaine Shells Composed of Oppositely Charged Diblock Copolymers. CHEM LETT 2017. [DOI: 10.1246/cl.170168] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Keita Nakai
- Department of Applied Chemistry, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280
| | - Kazuhiko Ishihara
- Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656
| | - Shin-ichi Yusa
- Department of Applied Chemistry, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280
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38
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Chang C, Liang P, Chen L, Liu J, Chen S, Zheng G, Quan C. pH-responsive nanoparticle assembly from peptide amphiphiles for tumor targeting drug delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1338-1350. [PMID: 28467173 DOI: 10.1080/09205063.2017.1325095] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In this paper, the peptide amphiphiles (PA) which consists of RGDSEEEEEEEEEEK as pH-sensitive segment and stearic acid as hydrophobic segment named RGDS-E10-Lys(C18) was successfully synthesized. TEM images showed that uniformly dispersed nanoparticles could be formed by PA molecules in pH 7.4 medium, however, disintegrated in pH 5.0 medium. Circular dichroism (CD) spectrum indicated that polypeptide adopted a random-coil conformation in neutral medium (pH 7.4). The CD signal was significantly attenuate for decreased solubility of PA in medium with pH 5.0. As expected, the prepared RGDS-E10-Lys(C18) assembly showed high pH-sensitive property which demonstrated a much more rapid drug release from micelles in tumor tissue (acidic environment) than in physiological environment (neutral environment). After DOX-loaded micelles incubated with tumor cells, the cytotoxicity of the micelles against Hela cells was increased obviously, indicating the great potential of micelles developed here as promising vehicle for targeted pH-responsive drug delivery.
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Affiliation(s)
- Cong Chang
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Peiqing Liang
- b Department of Biomedical Engineering , School of Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Linlin Chen
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Junfeng Liu
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Shihong Chen
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Guohua Zheng
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Changyun Quan
- b Department of Biomedical Engineering , School of Engineering, Sun Yat-sen University , Guangzhou , P. R. China
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39
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Su Y, Zhao L, Meng F, Wang Q, Yao Y, Luo J. Silver nanoparticles decorated lipase-sensitive polyurethane micelles for on-demand release of silver nanoparticles. Colloids Surf B Biointerfaces 2017; 152:238-244. [DOI: 10.1016/j.colsurfb.2017.01.036] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/21/2016] [Accepted: 01/18/2017] [Indexed: 11/29/2022]
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40
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Hu X, Zhang Y, Xie Z, Jing X, Bellotti A, Gu Z. Stimuli-Responsive Polymersomes for Biomedical Applications. Biomacromolecules 2017; 18:649-673. [DOI: 10.1021/acs.biomac.6b01704] [Citation(s) in RCA: 265] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xiuli Hu
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- State
Key Laboratory of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin 130022, People’s Republic of China
| | - Yuqi Zhang
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Zhigang Xie
- State
Key Laboratory of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin 130022, People’s Republic of China
| | - Xiabin Jing
- State
Key Laboratory of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin 130022, People’s Republic of China
| | - Adriano Bellotti
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Department
of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Zhen Gu
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Center
for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics,
UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Department
of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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41
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Zhou J, Ni R, Chau Y. Polymeric vesicle formation via temperature-assisted nanoprecipitation. RSC Adv 2017. [DOI: 10.1039/c7ra01959a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We here report an easy and efficient strategy to prepare submicron-sized polymeric vesicles with tetrahydrofuran (THF) as a good solvent through temperature-assisted nanoprecipitation (TAN).
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Affiliation(s)
- Junli Zhou
- Department of Chemical and Biomolecular Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Rong Ni
- Division of Biomedical Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
- Institute for Advanced Study
| | - Ying Chau
- Department of Chemical and Biomolecular Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
- Division of Biomedical Engineering
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42
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43
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Thiermann R, Bleul R, Maskos M. Kinetic Control of Block Copolymer Self-Assembly in a Micromixing Device - Mechanistical Insight into Vesicle Formation Process. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600347] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Regina Bleul
- Fraunhofer ICT-IMM; Carl-Zeiss-Straße 18-20 55129 Mainz Germany
| | - Michael Maskos
- Fraunhofer ICT-IMM; Carl-Zeiss-Straße 18-20 55129 Mainz Germany
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44
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Isono T, Miyachi K, Satoh Y, Nakamura R, Zhang Y, Otsuka I, Tajima K, Kakuchi T, Borsali R, Satoh T. Self-Assembly of Maltoheptaose-block-polycaprolactone Copolymers: Carbohydrate-Decorated Nanoparticles with Tunable Morphology and Size in Aqueous Media. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00781] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | | | | | | | - Issei Otsuka
- University of Grenoble
Alpes, F-38000 Grenoble, France
- CNRS-CERMAV, F-38000 Grenoble, France
| | | | | | - Redouane Borsali
- University of Grenoble
Alpes, F-38000 Grenoble, France
- CNRS-CERMAV, F-38000 Grenoble, France
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45
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So S, Lodge TP. Size Control and Fractionation of Ionic Liquid Filled Polymersomes with Glassy and Rubbery Bilayer Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4959-4968. [PMID: 27159064 DOI: 10.1021/acs.langmuir.6b00946] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We demonstrate control over the size of ionic liquid (IL) filled polymeric vesicles (polymersomes) by three distinct methods: mechanical extrusion, cosolvent-based processing in an IL, and fractionation of polymersomes in a biphasic system of IL and water. For the representative ionic liquid (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ([EMIM][TFSI])), the size and dispersity of polymersomes formed from 1,2-polybutadiene-b-poly(ethylene oxide) (PB-PEO) and polystyrene-b-poly(ethylene oxide) (PS-PEO) diblock copolymers were shown to be sensitive to assembly conditions. During mechanical extrusion through a polycarbonate membrane, the relatively larger polymersomes were broken up and reorganized into vesicles with mean size comparable to the membrane pore (100 nm radius); the distribution width also decreased significantly after only a few passes. Other routes were studied using the solvent-switch or cosolvent (CS) method, whereby the initial content of the cosolvent and the PEO block length of PS-PEO were systemically changed. The nonvolatility of the ionic liquid directly led to the desired concentration of polymersomes in the ionic liquid using a single step, without the dialysis conventionally used in aqueous systems, and the mean vesicle size depended on the amount of cosolvent employed. Finally, selective phase transfer of PS-PEO polymersomes based on size was used to extract larger polymersomes from the IL to the aqueous phase via interfacial tension controlled phase transfer. The interfacial tension between the PS membrane and the aqueous phase was varied with the concentration of sodium chloride (NaCl) in the aqueous phase; then the larger polymersomes were selectively separated to the aqueous phase due to differences in shielding of the hydrophobic core (PS) coverage by the hydrophilic corona brush (PEO). This novel fractionation is a simple separation process without any special apparatus and can help to prepare monodisperse polymersomes and also separate unwanted morphologies (in this case, worm-like micelles).
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Affiliation(s)
- Soonyong So
- Department of Chemical Engineering & Materials Science and ‡Department of Chemistry, University of Minnesota , Minneapolis, Minnesota 55455, United States
| | - Timothy P Lodge
- Department of Chemical Engineering & Materials Science and ‡Department of Chemistry, University of Minnesota , Minneapolis, Minnesota 55455, United States
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46
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Dionzou M, Morère A, Roux C, Lonetti B, Marty JD, Mingotaud C, Joseph P, Goudounèche D, Payré B, Léonetti M, Mingotaud AF. Comparison of methods for the fabrication and the characterization of polymer self-assemblies: what are the important parameters? SOFT MATTER 2016; 12:2166-76. [PMID: 26754164 DOI: 10.1039/c5sm01863c] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The ability to self-assemble was evaluated for a large variety of amphiphilic block copolymers, including poly(ethyleneoxide-b-ε-caprolactone), poly(ethyleneoxide-b-d,l-lactide), poly(ethyleneoxide-b-styrene), poly(ethyleneoxide-b-butadiene) and poly(ethyleneoxide-b-methylmethacrylate). Different methods of formation are discussed, such as cosolvent addition, film hydration or electroformation. The influence of experimental parameters and macromolecular structures on the size and morphology of the final self-assembled structures is investigated and critically compared with the literature. The same process is carried out regarding the characterization of these structures. This analysis demonstrates the great care that should be taken when dealing with such polymeric assemblies. If the morphology of such assemblies can be predicted to some extent by macromolecular parameters like the hydrophilic/hydrophobic balance, those parameters cannot be considered as universal. In addition, external experimental parameters (methods of preparation, use of co-solvent, …) appeared as critical key parameters to obtain a good control over the final structure of such objects, which are very often not at thermodynamic equilibrium but kinetically frozen. A principal component analysis is also proposed, in order to examine the important parameters for forming the self-assemblies. Here again, the hydrophilic/hydrophobic fraction is identified as an important parameter.
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Affiliation(s)
- M Dionzou
- Université de Toulouse, UPS/CNRS, IMRCP, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France.
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47
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Fukushima K. Poly(trimethylene carbonate)-based polymers engineered for biodegradable functional biomaterials. Biomater Sci 2016; 4:9-24. [DOI: 10.1039/c5bm00123d] [Citation(s) in RCA: 211] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review presents recent examples of applications and functionalization strategies of poly(trimethylene carbonate), its copolymers, and its derivatives to exploit the unique physicochemical properties of the aliphatic polycarbonate backbone.
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Affiliation(s)
- K. Fukushima
- Department of Polymer Science and Engineering
- Graduate School of Science and Engineering
- Yamagata University
- Yamagata 992-8510
- Japan
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48
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Sutti A, Chaffraix T, Voda AS, Taylor A, Magniez K. Nano-capsules of amphiphilic poly(ethylene glycol)-block-poly(bisphenol A carbonate) copolymers via thermodynamic entrapment. RSC Adv 2016. [DOI: 10.1039/c5ra23555c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fast and simple preparation of nano-capsules by water addition to poly(ethylene glycol)-block-poly(bisphenol A carbonate) copolymers in THF.
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Affiliation(s)
- A. Sutti
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - T. Chaffraix
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - A. S. Voda
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - A. Taylor
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - K. Magniez
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
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49
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Synthesis of ABA Tri-Block Co-Polymer Magnetopolymersomes via Electroporation for Potential Medical Application. Polymers (Basel) 2015. [DOI: 10.3390/polym7121529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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50
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Zhang L, Zhang P, Zhao Q, Zhang Y, Cao L, Luan Y. Doxorubicin-loaded polypeptide nanorods based on electrostatic interactions for cancer therapy. J Colloid Interface Sci 2015; 464:126-36. [PMID: 26609932 DOI: 10.1016/j.jcis.2015.11.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 02/06/2023]
Abstract
An amphiphilic anionic polypeptide, methoxypolyethylene glycol-poly (glutamic acid) (mPEG-PGA), was synthesized, characterized and evaluated as a nanocarrier for the cationic anticancer drug doxorubicin hydrochloride (DOX·HCl). The complex self-assembled into nanorods in aqueous solutions via electrostatic interactions and exhibited a superior drug loading content (50.8%) and drug loading efficiency (90.2%). The average major axis of the drug-loaded nanorods was approximately 300nm, as determined by transmission electron microscopy. An in vitro release assay showed that drug-loaded nanorods exhibited pH-sensitivity and sustained release. Haemolysis assays demonstrated that the polypeptide was haemocompatible, and the polypeptide drug carrier significantly reduced the haemolysis ratio of DOX·HCl. The pharmacokinetics study showed that DOX-loaded nanorods significantly prolonged the resident time in blood. An in vitro cytotoxicity study and cellular uptake assays demonstrated that the DOX-loaded nanorods resulted in higher cell proliferation inhibition and a higher level of tumour cell uptake in A549 cells than with free DOX·HCl. The prolonged circulation and enhanced antitumor efficacy of DOX-loaded nanorods shows promise for efficient cancer chemotherapy.
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Affiliation(s)
- Longlong Zhang
- School of Pharmaceutical Science and Center for Pharmaceutical Research & Drug Delivery Systems, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, PR China.
| | - Pei Zhang
- School of Pharmaceutical Science and Center for Pharmaceutical Research & Drug Delivery Systems, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, PR China.
| | - Qingyun Zhao
- Hospital of Traditional Chinese Medicine of Jimo, Shandong Province, PR China.
| | - Yongchun Zhang
- School of Pharmaceutical Science and Center for Pharmaceutical Research & Drug Delivery Systems, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, PR China.
| | - Longqiao Cao
- Jining First People's Hospital, Shandong Province, PR China.
| | - Yuxia Luan
- School of Pharmaceutical Science and Center for Pharmaceutical Research & Drug Delivery Systems, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, PR China.
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