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Mann J, Mayer JK, Garnweitner G, Schilde C. Influence of Process Parameters on the Kinetics of the Micelle-to-Vesicle Transition and Ripening of Polystyrene-Block-Polyacrylic Acid. Polymers (Basel) 2023; 15:polym15071695. [PMID: 37050309 PMCID: PMC10096835 DOI: 10.3390/polym15071695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/20/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Due to their ability to self-assemble into complex structures, block copolymers are of great interest for use in a wide range of future applications, such as self-healing materials. Therefore, it is important to understand the mechanisms of their structure formation. In particular, the process engineering of the formation and transition of the polymer structures is required for ensuring reproducibility and scalability, but this has received little attention in the literature. In this article, the influence of the addition rate of the selective solvent on the homogeneity of self-assembled vesicles of polystyrene-block-polyacrylic acid is demonstrated, as well as the influence of the reaction time and the mixing intensity on the morphology of the polymer structures. For example, it was demonstrated that the higher the mixing intensity, the faster the transition from micelle to vesicle. The experimental results are further supported by CFD simulations, which visually and graphically show an increase in shear rate and narrower shear rate distributions at higher stirring rates. Furthermore, it was demonstrated that the vesicle size is not only kinetically determined, since flow forces above a critical size lead to the deformation and fission of the vesicles.
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2
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Mann J, Garnweitner G, Schilde C. Preparation of Self-Assembled Nanoparticle-Polymer Hybrids from Modified Silica Nanoparticles and Polystyrene-Block-Polyacrylic Acid Vesicles via the Co-Precipitation Method. Polymers (Basel) 2023; 15:polym15020444. [PMID: 36679323 PMCID: PMC9867192 DOI: 10.3390/polym15020444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/18/2023] Open
Abstract
Nanoparticle-polymer hybrids are becoming increasingly important because seemingly contrasting properties, such as mechanical stability and high elasticity, can be combined into one material. In particular, hybrids made of self-assembled polymers are of growing interest since they exhibit high structural precision and diversity and the subsequent reorganization of the nanoparticles is possible. In this work, we show, for the first time, how hybrids of silica nanoparticles and self-assembled vesicles of polystyrene-block-polyacrylic acid can be prepared using the simple and inexpensive method of co-precipitation, highlighting in particular the challenges of using silica instead of other previously well-researched materials, such as gold. The aim was to investigate the influence of the type of modification and the particle size of the silica nanoparticles on the encapsulation and structure of the polymer vesicles. For this purpose, we first needed to adjust the surface properties of the nanoparticles, which we achieved with a two-step modification procedure using APTES and carboxylic acids of different chain lengths. We found that silica nanoparticles modified only with APTES could be successfully encapsulated, while those modified with APTES and decanoic acid resulted in vesicle agglomeration and poor encapsulation due to their strong hydrophobicity. In contrast, no negative effects were observed when different particle sizes (20 nm and 45 nm) were examined.
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Affiliation(s)
- Jil Mann
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, Langer Kamp 6A, 38106 Braunschweig, Germany
- Correspondence:
| | - Georg Garnweitner
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, Langer Kamp 6A, 38106 Braunschweig, Germany
| | - Carsten Schilde
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, Langer Kamp 6A, 38106 Braunschweig, Germany
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3
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Idumah CI, Nwuzor IC, Odera SR, Timothy UJ, Ngenegbo U, Tanjung FA. Recent advances in polymeric hydrogel nanoarchitectures for drug delivery applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2120875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - I. C. Nwuzor
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - S. R. Odera
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - U. J. Timothy
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - U. Ngenegbo
- Department of Parasitology and Entomology, Faculty of Biosciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - F. A. Tanjung
- Faculty of Science and Technology, Universitas Medan Area, Medan, Indonesia
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Liu S, Wang T, Li S, Wang X. Application Status of Sacrificial Biomaterials in 3D Bioprinting. Polymers (Basel) 2022; 14:polym14112182. [PMID: 35683853 PMCID: PMC9182955 DOI: 10.3390/polym14112182] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 02/04/2023] Open
Abstract
Additive manufacturing, also known as three-dimensional (3D) printing, relates to several rapid prototyping (RP) technologies, and has shown great potential in the manufacture of organoids and even complex bioartificial organs. A major challenge for 3D bioprinting complex org unit ans is the competitive requirements with respect to structural biomimeticability, material integrability, and functional manufacturability. Over the past several years, 3D bioprinting based on sacrificial templates has shown its unique advantages in building hierarchical vascular networks in complex organs. Sacrificial biomaterials as supporting structures have been used widely in the construction of tubular tissues. The advent of suspension printing has enabled the precise printing of some soft biomaterials (e.g., collagen and fibrinogen), which were previously considered unprintable singly with cells. In addition, the introduction of sacrificial biomaterials can improve the porosity of biomaterials, making the printed structures more favorable for cell proliferation, migration and connection. In this review, we mainly consider the latest developments and applications of 3D bioprinting based on the strategy of sacrificial biomaterials, discuss the basic principles of sacrificial templates, and look forward to the broad prospects of this approach for complex organ engineering or manufacturing.
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Affiliation(s)
- Siyu Liu
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China; (S.L.); (T.W.); (S.L.)
| | - Tianlin Wang
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China; (S.L.); (T.W.); (S.L.)
| | - Shenglong Li
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China; (S.L.); (T.W.); (S.L.)
| | - Xiaohong Wang
- Center of 3D Printing & Organ Manufacturing, School of Intelligent Medicine, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China; (S.L.); (T.W.); (S.L.)
- Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
- Correspondence: or ; Tel./Fax: +86-24-31900983
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5
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Guirguis M, Bhandari C, Li J, Eroy M, Prajapati S, Margolis R, Shrivastava N, Hoyt K, Hasan T, Obaid G. Membrane composition is a functional determinant of NIR-activable liposomes in orthotopic head and neck cancer. NANOPHOTONICS 2021; 10:3169-3185. [PMID: 35433177 PMCID: PMC9012185 DOI: 10.1515/nanoph-2021-0191] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Near-infrared (NIR)-activable liposomes containing photosensitizer (PS)-lipid conjugates are emerging as tunable, high-payload, and tumor-selective platforms for photodynamic therapy (PDT)-based theranostics. To date, the impact that the membrane composition of a NIR-activable liposome (the chemical nature and subsequent conformation of PS-lipid conjugates) has on their in vitro and in vivo functionality has not been fully investigated. While their chemical nature is critical, the resultant physical conformation dictates their interactions with the immediate biological environments. Here, we evaluate NIR-activable liposomes containing lipid conjugates of the clinically-used PSs benzoporphyrin derivative (BPD; hydrophobic, membrane-inserting conformation) or IRDye 700DX (hydrophilic, membrane-protruding conformation) and demonstrate that membrane composition is critical for their function as tumor-selective PDT-based platforms. The PS-lipid conformations were primarily dictated by the varying solubilities of the two PSs and assisted by their lipid conjugation sites. Conformation was further validated by photophysical analysis and computational predictions of PS membrane partitioning (topological polar surface area [tPSA], calculated octanol/water partition [cLogP], and apparent biomembrane permeability coefficient [Papp]). Results show that the membrane-protruding lipo-IRDye700DX exhibits 5-fold more efficient photodynamic generation of reactive molecular species (RMS), 12-fold expedited phototriggered burst release of entrap-ped agents, and 15-fold brighter fluorescence intensity as compared to the membrane-inserting lipo-BPD-PC (phosphatidylcholine conjugate). Although the membrane-inserting lipo-BPD-PC exhibits less efficient photo-dynamic generation of RMS, it allows for more sustained phototriggered release, 10-fold greater FaDu cancer cell phototoxicity, and 7.16-fold higher tumor-selective delivery in orthotopic mouse FaDu head and neck tumors. These critical insights pave the path for the rational design of emerging NIR-activable liposomes, whereby functional consequences of membrane composition can be tailored toward a specific therapeutic purpose.
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Affiliation(s)
- Mina Guirguis
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Chanda Bhandari
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Junjie Li
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Menitte Eroy
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Sushant Prajapati
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Ryan Margolis
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Navadeep Shrivastava
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Kenneth Hoyt
- Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston 02114, Massachusetts, USA; and Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge 02139, Massachusetts, USA
| | - Girgis Obaid
- Corresponding author: Girgis Obaid, Department of Bioengineering, University of Texas at Dallas, Richardson 75080, Texas, USA,
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Chen L, Shao J, Yu Q, Wang S. High-strength, anti-fatigue, stretchable self-healing polyvinyl alcohol hydrogel based on borate bonds and hydrogen bonds. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1844740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Lijun Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People’s Republic of China
| | - Jia Shao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People’s Republic of China
| | - Qijian Yu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People’s Republic of China
| | - Sui Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, People’s Republic of China
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7
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Leggio L, Arrabito G, Ferrara V, Vivarelli S, Paternò G, Marchetti B, Pignataro B, Iraci N. Mastering the Tools: Natural versus Artificial Vesicles in Nanomedicine. Adv Healthc Mater 2020; 9:e2000731. [PMID: 32864899 DOI: 10.1002/adhm.202000731] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/27/2020] [Indexed: 12/12/2022]
Abstract
Naturally occurring extracellular vesicles and artificially made vesicles represent important tools in nanomedicine for the efficient delivery of biomolecules and drugs. Since its first appearance in the literature 50 years ago, the research on vesicles is progressing at a fast pace, with the main goal of developing carriers able to protect cargoes from degradation, as well as to deliver them in a time- and space-controlled fashion. While natural occurring vesicles have the advantage of being fully compatible with their host, artificial vesicles can be easily synthetized and functionalized according to the target to reach. Research is striving to merge the advantages of natural and artificial vesicles, in order to provide a new generation of highly performing vesicles, which would improve the therapeutic index of transported molecules. This progress report summarizes current manufacturing techniques used to produce both natural and artificial vesicles, exploring the promises and pitfalls of the different production processes. Finally, pros and cons of natural versus artificial vesicles are discussed and compared, with special regard toward the current applications of both kinds of vesicles in the healthcare field.
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Affiliation(s)
- Loredana Leggio
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
| | - Giuseppe Arrabito
- Department of Physics and Chemistry – Emilio Segrè University of Palermo Building 17, Viale delle Scienze Palermo 90128 Italy
| | - Vittorio Ferrara
- Department of Chemical Sciences University of Catania Viale Andrea Doria 6 Catania 95125 Italy
| | - Silvia Vivarelli
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
| | - Greta Paternò
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
| | - Bianca Marchetti
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
- Neuropharmacology Section OASI Institute for Research and Care on Mental Retardation and Brain Aging Troina 94018 Italy
| | - Bruno Pignataro
- Department of Physics and Chemistry – Emilio Segrè University of Palermo Building 17, Viale delle Scienze Palermo 90128 Italy
| | - Nunzio Iraci
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
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8
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Wen N, Jiang B, Wang X, Shang Z, Jiang D, Zhang L, Sun C, Wu Z, Yan H, Liu C, Guo Z. Overview of Polyvinyl Alcohol Nanocomposite Hydrogels for Electro‐Skin, Actuator, Supercapacitor and Fuel Cell. CHEM REC 2020; 20:773-792. [DOI: 10.1002/tcr.202000001] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Nan Wen
- College of Chemistry, Chemical Engineering and Resource UtilizationNortheast Forestry University Harbin 150040, PR China
| | - Bojun Jiang
- College of Chemistry, Chemical Engineering and Resource UtilizationNortheast Forestry University Harbin 150040, PR China
| | - Xiaojing Wang
- School of Materials Science and EngineeringJiangsu University of Science and Technology Zhenjiang 212003 China
| | - Zhifu Shang
- College of Chemistry, Chemical Engineering and Resource UtilizationNortheast Forestry University Harbin 150040, PR China
| | - Dawei Jiang
- College of Chemistry, Chemical Engineering and Resource UtilizationNortheast Forestry University Harbin 150040, PR China
- Post-doctoral Mobile Research Station of Forestry EngineeringNortheast Forestry University Harbin 150040 China
| | - Lu Zhang
- College of Chemistry, Chemical Engineering and Resource UtilizationNortheast Forestry University Harbin 150040, PR China
| | - Caiying Sun
- College of Chemistry, Chemical Engineering and Resource UtilizationNortheast Forestry University Harbin 150040, PR China
| | - Zijian Wu
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, HarbinUniversity of Science and Technology Harbin 150040 China
| | - Hui Yan
- School of Mechatronics EngineeringHarbin Institute of Technology Harbin 150001 China
| | - Chuntai Liu
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou University, Zhengzhou Henan 450002 China
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical EngineeringUniversity of Tennessee Knoxville TN 37996 USA
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Sahu AK, Mishra J, Mishra AK. Introducing Tween-curcumin niosomes: preparation, characterization and microenvironment study. SOFT MATTER 2020; 16:1779-1791. [PMID: 31970372 DOI: 10.1039/c9sm02416f] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this work, we report unusual niosomes (non-ionic surfactant based vesicles), prepared using non-ionic surfactant Tween 80 (T80) as well as Tween 20 (T20) and curcumin. Conventional niosomes consist of non-ionic surfactant and cholesterol. We found that, despite being a probiotic, curcumin plays a similar role to cholesterol in the formation and stabilization of niosomes. The prepared Tween-curcumin niosomes were characterised using Dynamic Light Scattering (DLS), zeta potential, Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and Transmission Electron Microscopy (TEM) techniques. The curcumin-induced micelle to vesicle transition in the Tween surfactants was investigated by DLS, zeta potential, fluorescence anisotropy, and fluorescence lifetime studies. At room temperature (298 K), the prepared niosomes were found to be stable; however, at a higher temperature (333 K), the niosomes degrade gradually and irreversibly to form micelles. The temperature-dependent vesicle to micelle degradation was monitored using fluorescence anisotropy, absorption, DLS and Differential Scanning Calorimetry (DSC) measurements. Further, the Tween-curcumin niosomes show a controlled release of curcumin, which could open up the possibility of multidrug therapy.
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Affiliation(s)
- Anand Kumar Sahu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Jhili Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Ashok Kumar Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
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Kiene K, Schenk SH, Porta F, Ernst A, Witzigmann D, Grossen P, Huwyler J. PDMS-b-PMOXA polymersomes for hepatocyte targeting and assessment of toxicity. Eur J Pharm Biopharm 2017; 119:322-332. [PMID: 28720487 DOI: 10.1016/j.ejpb.2017.07.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 06/12/2017] [Accepted: 07/06/2017] [Indexed: 11/25/2022]
Abstract
Nanoparticles, such as polymersomes, can be directed to the hepatic asialoglycoprotein receptor to achieve targeted drug delivery. In this study, we prepared asialofetuin conjugated polymersomes based on the amphiphilic di-block copolymer poly(dimethylsiloxane)-b-poly(2-methyloxazoline) (PDMS-b-PMOXA). They had an average diameter of 150nm and formed monodisperse vesicles. Drug encapsulation and sustained release was monitored using the hydrophilic model compound carboxyfluorescein. Asialoglycoprotein receptor specific uptake by HepG2 cells in vitro was energy dependent and could be competitively inhibited by the free targeting ligand. Mechanistic uptake studies revealed intracellular trafficking of asialofetuin conjugated polymersomes from early endosomes and to the lysosomal compartment. Polymersomes showed no toxicity in the MTT assay up to concentrations of 500μg/mL. In addition, acute toxicity and tolerability of our PDMS-b-PMOXA polymersome formulations was assessed in vivo using zebrafish embryos as a vertebrate screening model. In conclusion, a hepatocyte specific drug delivery system was designed, which is safe and biocompatible and which can be used to implement liver-specific targeting strategies.
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Affiliation(s)
- Klara Kiene
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Susanne H Schenk
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Fabiola Porta
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Alexandra Ernst
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Dominik Witzigmann
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Philip Grossen
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland.
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11
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Poschenrieder ST, Klermund L, Langer B, Castiglione K. Determination of Permeability Coefficients of Polymersomal Membranes for Hydrophilic Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:6011-6020. [PMID: 28509557 DOI: 10.1021/acs.langmuir.6b04598] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Polymer vesicles, so-called polymersomes, can be applied as carrier-systems and universal reaction compartments, due to the possibility to encapsulate guest molecules. Compared to common lipid vesicles, polymersomes show an increased stability and decreased membrane permeability. Control of the mass transport across the membrane is necessary for any application, requiring the precise knowledge of the permeability. So far, data on permeability coefficients of polymersomal membranes are scarce because commonly applied release assays are confronted with the challenge of high detection limits and alternative methods developed so far are either restricted to the use of a certain permeating molecule or rely on the use of nuclear magnetic resonance measurements. In contrast, an influx assay that is broadly applicable to hydrophilic molecules and does not involve specialized equipment was developed in this work, which is based on the passive diffusion of compounds into initially empty vesicles. The method is valid for hydrophilic molecules that show no membrane retention and, thus, do not accumulate within the membrane. Using this method, the permeability of polymersomes made of poly(2-methyloxazoline)15-poly(dimethylsiloxane)68-poly(2-methyloxazoline)15 for seven model compounds was investigated under varying conditions. Permeability coefficients as low as 1.9 × 10-14 cm s-1 could be measured.
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Affiliation(s)
- Sarah T Poschenrieder
- Institute of Biochemical Engineering, Technical University of Munich , Boltzmannstraße 15, 85748 Garching, Germany
| | - Ludwig Klermund
- Institute of Biochemical Engineering, Technical University of Munich , Boltzmannstraße 15, 85748 Garching, Germany
| | - Bettina Langer
- Institute of Biochemical Engineering, Technical University of Munich , Boltzmannstraße 15, 85748 Garching, Germany
| | - Kathrin Castiglione
- Institute of Biochemical Engineering, Technical University of Munich , Boltzmannstraße 15, 85748 Garching, Germany
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12
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Tardy BL, Tan S, Dam HH, Ejima H, Blencowe A, Qiao GG, Caruso F. Nanoparticles assembled via pH-responsive reversible segregation of cyclodextrins in polyrotaxanes. NANOSCALE 2016; 8:15589-15596. [PMID: 27509868 DOI: 10.1039/c6nr04841b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Supramolecular polymers with monomers bound together by secondary interactions, such as polyrotaxanes (PRXs), consisting of alpha cyclodextrin (αCD) threaded onto poly(ethylene glycol) (PEG), have attracted interest as a result of their ability to overcome physical limitations present in conventional, covalently structured polymers. Herein, we describe the formation of pH-responsive supramolecular assemblies from carboxyethylester bearing αCD and PEG PRXs. These PRXs were formed using PEG of Mw 20 kDa and a threading degree of 28%. Upon charge neutralisation the threaded αCDs co-localise, resulting in aggregation of the PRXs and the formation of a suspension by self-assembly. This process is shown to be reversible and possible via the mobility of CDs along the PEG guest chain. As a result of the inherent properties of PRXs, such as enhanced multivalent interactions and degradation, these responsive supramolecular polymers are expected to be of interest in fields where PRX-based materials have already found application, including paints, self-healing materials, surface coatings, and polymer therapeutics.
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Affiliation(s)
- Blaise L Tardy
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Shereen Tan
- Polymer Science Group, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Henk H Dam
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Hirotaka Ejima
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Anton Blencowe
- School of Pharmacy and Medical Sciences, Division of Health Sciences, The University of South Australia, Adelaide, SA 5001, Australia
| | - Greg G Qiao
- Polymer Science Group, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
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13
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Zhao F, Yao D, Guo R, Deng L, Dong A, Zhang J. Composites of Polymer Hydrogels and Nanoparticulate Systems for Biomedical and Pharmaceutical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:2054-2130. [PMID: 28347111 PMCID: PMC5304774 DOI: 10.3390/nano5042054] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/18/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022]
Abstract
Due to their unique structures and properties, three-dimensional hydrogels and nanostructured particles have been widely studied and shown a very high potential for medical, therapeutic and diagnostic applications. However, hydrogels and nanoparticulate systems have respective disadvantages that limit their widespread applications. Recently, the incorporation of nanostructured fillers into hydrogels has been developed as an innovative means for the creation of novel materials with diverse functionality in order to meet new challenges. In this review, the fundamentals of hydrogels and nanoparticles (NPs) were briefly discussed, and then we comprehensively summarized recent advances in the design, synthesis, functionalization and application of nanocomposite hydrogels with enhanced mechanical, biological and physicochemical properties. Moreover, the current challenges and future opportunities for the use of these promising materials in the biomedical sector, especially the nanocomposite hydrogels produced from hydrogels and polymeric NPs, are discussed.
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Affiliation(s)
- Fuli Zhao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Dan Yao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Ruiwei Guo
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Liandong Deng
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Anjie Dong
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jianhua Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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Polymersomes conjugated to 83-14 monoclonal antibodies: Invitro targeting of brain capillary endothelial cells. Eur J Pharm Biopharm 2014; 88:316-24. [DOI: 10.1016/j.ejpb.2014.05.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 05/22/2014] [Accepted: 05/26/2014] [Indexed: 12/28/2022]
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15
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Popescu MT, Korogiannaki M, Marikou K, Tsitsilianis C. CBABC terpolymer-based nanostructured vesicles with tunable membrane permeability as potential hydrophilic drug nanocarriers. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.04.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Tardy BL, Dam HH, Kamphuis MMJ, Richardson JJ, Caruso F. Self-assembled stimuli-responsive polyrotaxane core-shell particles. Biomacromolecules 2013; 15:53-9. [PMID: 24328262 DOI: 10.1021/bm401244a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Thermodynamically assembled core-shell nanocarriers are potential candidates for drug delivery applications due to their submicrometer size and the ability to load drugs into their hydrophobic core. Herein, we describe the formation of core-shell particles that consist of noncovalent polymers, that is, polyrotaxanes (PRXs), that form an α-cyclodextrin (αCD) core surrounded by a corona of low-fouling poly(ethylene glycol) (PEG). The PRX core-shell particles are able to sequester small organic molecules, such as pyrene and calcein, releasing these small molecules during degradation. The small, cellular peptide, glutathione, was used to degrade the particles through the reductive cleavage of disulfide bonds that stabilize the individual PRX polymers. Cleavage of a single bond allows for the degradation of the supramolecular-polymer, making these PRX core-shell particles highly responsive. Furthermore, these particles demonstrate negligible cytotoxicity in mammalian cells, making them promising carriers for future drug delivery research.
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Affiliation(s)
- Blaise L Tardy
- Department of Chemical and Biomolecular Engineering, The University of Melbourne , Victoria 3010, Australia
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17
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Banerjee R, Dutta S, Pal S, Dhara D. Spontaneous Formation of Vesicles by Self-Assembly of Cationic Block Copolymer in the Presence of Anionic Surfactants and Their Application in Formation of Polymer Embedded Gold Nanoparticles. J Phys Chem B 2013; 117:3624-33. [PMID: 23470131 DOI: 10.1021/jp309808q] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Rakesh Banerjee
- Department
of Chemistry, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Sujan Dutta
- Department
of Chemistry, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Souvik Pal
- Department
of Chemistry, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Dibakar Dhara
- Department
of Chemistry, Indian Institute of Technology Kharagpur, West Bengal 721302, India
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18
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A cell-free nanofiber composite scaffold regenerated osteochondral defects in miniature pigs. Int J Pharm 2013; 447:139-49. [PMID: 23499757 DOI: 10.1016/j.ijpharm.2013.02.056] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 02/26/2013] [Accepted: 02/28/2013] [Indexed: 02/03/2023]
Abstract
The aim of the study was to evaluate the effect of a cell-free hyaluronate/type I collagen/fibrin composite scaffold containing polyvinyl alcohol (PVA) nanofibers enriched with liposomes, basic fibroblast growth factor (bFGF) and insulin on the regeneration of osteochondral defects. A novel drug delivery system was developed on the basis of the intake effect of liposomes encapsulated in PVA nanofibers. Time-controlled release of insulin and bFGF improved MSC viability in vitro. Nanofibers functionalized with liposomes also improved the mechanical characteristics of the composite gel scaffold. In addition, time-controlled release of insulin and bFGF stimulated MSC recruitment from bone marrow in vivo. Cell-free composite scaffolds containing PVA nanofibers enriched with liposomes, bFGF, and insulin were implanted into seven osteochondral defects of miniature pigs. Control defects were left untreated. After 12 weeks, the composite scaffold had enhanced osteochondral regeneration towards hyaline cartilage and/or fibrocartilage compared with untreated defects that were filled predominantly with fibrous tissue. The cell-free composite scaffold containing PVA nanofibers, liposomes and growth factors enhanced migration of the cells into the defect, and their differentiation into chondrocytes; the scaffold was able to enhance the regeneration of osteochondral defects in minipigs.
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19
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Baumann P, Balasubramanian V, Onaca-Fischer O, Sienkiewicz A, Palivan CG. Light-responsive polymer nanoreactors: a source of reactive oxygen species on demand. NANOSCALE 2013; 5:217-224. [PMID: 23154601 DOI: 10.1039/c2nr32380j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Various domains present the challenges of responding to stimuli in a specific manner, with the desired sensitivity or functionality, and only when required. Stimuli-responsive systems that are appropriately designed can effectively meet these challenges. Here, we introduce nanoreactors that encapsulate photosensitizer-protein conjugates in polymer vesicles as a source of "on demand" reactive oxygen species. Vesicles made of poly(2-methyloxazoline)-poly(dimethylsiloxane)-poly(2-methyloxazoline) successfully encapsulated the photosensitizer Rose Bengal-bovine serum albumin conjugate (RB-BSA) during a self-assembly process, as demonstrated by UV-Vis spectroscopy. A combination of light scattering and transmission electron microscopy indicated that the nanoreactors are stable over time. They serve a dual role: protecting the photosensitizer in the inner cavity and producing in situ reactive oxygen species (ROS) upon irradiation with appropriate electromagnetic radiation. Illumination with appropriate wavelength light allows us to switch on/off and to control the production of ROS. Because of the oxygen-permeable nature of the polymer membrane of vesicles, ROS escape into the environment around vesicles, as established by electron paramagnetic resonance. The light-sensitive nanoreactor is taken up by HeLa cells in a Trojan horse fashion: it is nontoxic and, when irradiated with the appropriate laser light, produces ROS that induce cell death in a precise area corresponding to the irradiation zone. These nanoreactors can be used in theranostic approaches because they can be detected via the fluorescent photosensitizer signal and simultaneously produce ROS efficiently "on demand".
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Affiliation(s)
- Patric Baumann
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
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20
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Hosta-Rigau L, Jensen BEB, Fjeldsø KS, Postma A, Li G, Goldie KN, Albericio F, Zelikin AN, Städler B. Surface-adhered composite poly(vinyl alcohol) physical hydrogels: polymersome-aided delivery of therapeutic small molecules. Adv Healthc Mater 2012. [PMID: 23184834 DOI: 10.1002/adhm.201200092] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Jeong JH, Cha C, Kaczmarowski A, Haan J, Oh S, Kong H. Polyaspartamide Vesicle induced by Metallic Nanoparticles. SOFT MATTER 2012; 2012:2237-2242. [PMID: 22423249 PMCID: PMC3298412 DOI: 10.1039/c2sm06763c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Polymer vesicles are being extensively studied to emulate self-assembly in biological systems and also use them in a variety of biological and industrial applications. This study demonstrates a novel strategy to prepare polymer vesicles in a pure aqueous medium by driving the micelle-to-vesicle transition with metallic nanoparticles. We synthesized poly(2-amino-2-hydroxyethyl aspartamide) (PAHA) substituted with octadecyl chains, which could form micelle-like self-aggregates in the aqueous medium and chemically bind with platinum precursors. Then, in situ polymerization of Pt nanoparticles within the PAHA self-aggregates generated polymer vesicles that possess nanoparticles within bilayers, because of the increase of the hydrophilic mass ratio to total mass of PAHA, f (w). This new strategy to prepare polymer vesicles would greatly serve to facilitate the control of self-assembly and ultimately improve the functionality of a wide array of polymer vesicles.
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Affiliation(s)
- Jae Hyun Jeong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Chaenyung Cha
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Amy Kaczmarowski
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - John Haan
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Soonnam Oh
- Department of Radiology and College of Medicine, Catholic University of Korea, Republic of Korea
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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22
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Egli S, Nussbaumer MG, Balasubramanian V, Chami M, Bruns N, Palivan C, Meier W. Biocompatible Functionalization of Polymersome Surfaces: A New Approach to Surface Immobilization and Cell Targeting Using Polymersomes. J Am Chem Soc 2011; 133:4476-83. [DOI: 10.1021/ja110275f] [Citation(s) in RCA: 157] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Stefan Egli
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland
| | - Martin G. Nussbaumer
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland
| | | | - Mohamed Chami
- Centre for Cellular Imaging and Nano Analytics, Biozentrum, University of Basel, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Nico Bruns
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland
| | - Cornelia Palivan
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland
| | - Wolfgang Meier
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland
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23
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A review on composite liposomal technologies for specialized drug delivery. JOURNAL OF DRUG DELIVERY 2011; 2011:939851. [PMID: 21490759 PMCID: PMC3065812 DOI: 10.1155/2011/939851] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 11/23/2010] [Accepted: 12/07/2010] [Indexed: 12/21/2022]
Abstract
The combination of liposomes with polymeric scaffolds could revolutionize the current state of drug delivery technology. Although liposomes have been extensively studied as a promising drug delivery model for bioactive compounds, there still remain major drawbacks for widespread pharmaceutical application. Two approaches for overcoming the factors related to the suboptimal efficacy of liposomes in drug delivery have been suggested. The first entails modifying the liposome surface with functional moieties, while the second involves integration of pre-encapsulated drug-loaded liposomes within depot polymeric scaffolds. This attempts to provide ingenious solutions to the limitations of conventional liposomes such as short plasma half-lives, toxicity, stability, and poor control of drug release over prolonged periods. This review delineates the key advances in composite technologies that merge the concepts of depot polymeric scaffolds with liposome technology to overcome the limitations of conventional liposomes for pharmaceutical applications.
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24
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Montenegro J, Braun J, Fischer-Onaca O, Meier W, Matile S. Synthetic polyion-counterion transport systems in polymersomes and gels. Org Biomol Chem 2011; 9:6623-8. [DOI: 10.1039/c1ob05835e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Onaca O, Hughes DW, Balasubramanian V, Grzelakowski M, Meier W, Palivan CG. SOD antioxidant nanoreactors: influence of block copolymer composition on the nanoreactor efficiency. Macromol Biosci 2010; 10:531-8. [PMID: 20112239 DOI: 10.1002/mabi.200900379] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The bioavailability limitations of proteins make them difficult to be directly delivered, particularly in diseases caused by insufficient amounts or inactive variants of those proteins. Nanoreactors represent a new promising approach to overcome these limitations because they serve both to protect the protein in their aqueous interior, and simultaneously to allow the protein to act in situ. Here we examine an antioxidant nanoreactor based on SOD encapsulated in amphiphilic block copolymer nanovesicles, and analyze its behavior as a function of the copolymer composition. The membrane of the triblock copolymer nanovesicles plays a double role, both to shield the sensitive protein and selectively to let superoxide and dioxygen penetrate to its inner space. The encapsulation efficiency for different triblock copolymer vesicles was quantified by fluorescence correlation spectroscopy using a fluorescently labeled SOD. Pulse radiolysis experiments and an enzymatic assay were used to compare the permeability of the wall-forming membranes towards superoxide anions. While the encapsulation efficiency mainly depends on the vesicle dimensions, the membrane permeability is mainly affected by the length of the hydrophobic PDMS middle blocks of our polymers. For polymers with very long PDMS chains superoxide anion transport across the membranes was too slow to be detected by our experiments.
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Affiliation(s)
- Ozana Onaca
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland
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26
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Theogarajan L, Li H, Busse K, Desai S, Kressler J, Scholz C. Self-assembly of ABA triblock copolymers based on functionalized polydimethylsiloxane and polymethyloxazoline. POLYM INT 2010. [DOI: 10.1002/pi.2849] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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