1
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Grover T, Guymon CA. Effect of Block Copolymer Self-Assembly on Phase Separation in Photopolymerizable Epoxy Blends. Macromolecules 2024; 57:4717-4728. [PMID: 38827959 PMCID: PMC11140735 DOI: 10.1021/acs.macromol.4c00192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/17/2024] [Accepted: 05/07/2024] [Indexed: 06/05/2024]
Abstract
Directing self-assembly of photopolymerizable systems is advantageous for controlling polymer nanostructure and material properties, but developing techniques for inducing ordered structure remains challenging. In this work, well-defined diblock or random copolymers were incorporated into cationic photopolymerizable epoxy systems to investigate the impact of copolymer architecture on self-assembly and phase separated nanostructures. Copolymers consisting of poly(hydroxyethyl acrylate)-x-(butyl acrylate) were prepared using photoiniferter polymerization to control functional group placement and molecular weight/polydispersity. Prepolymer configuration and concentration induced distinctly different effects on the resin flow and photopolymerization kinetics. The diblock copolymer self-assembled into nanostructured phases within the resin matrix, whereas the random copolymer formed an isotropic mixture. Rapid photopolymerization and ambient temperature conditions during cure facilitated retention of the self-assembled phases, leading to considerably different composite morphology and thermomechanical behavior. Increased loading of the diblock copolymer induced long-range ordered cocontinuous structures. Even with nearly identical prepolymer composition, controlled nanophase separation resulted in significantly enhanced tensile properties relative to those of the isotropic system. This work demonstrates that controlling phase separation with a block copolymer architecture allows access to nanostructured photopolymers with unique and enhanced properties.
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Affiliation(s)
- Tanner
L. Grover
- Department of Chemical and
Biochemical Engineering, University of Iowa, 4133 Seamans Center, Iowa City, Iowa 52242, United States
| | - C. Allan Guymon
- Department of Chemical and
Biochemical Engineering, University of Iowa, 4133 Seamans Center, Iowa City, Iowa 52242, United States
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2
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Kabalan Y, Montané X, Tylkowski B, De la Flor S, Giamberini M. Design and assembly of biodegradable capsules based on alginate hydrogel composite for the encapsulation of blue dye. Int J Biol Macromol 2023; 233:123530. [PMID: 36736972 DOI: 10.1016/j.ijbiomac.2023.123530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
The encapsulation of bluing agents in biodegradable polymeric capsules is an emerging option in laundry detergents sector to substitute formaldehyde-based polymers, because they are non-biodegradable, carcinogenic and toxic. In this work, we present for the first time the successful encapsulation of a blue dye in biodegradable capsules which shell was formed by an alginate hydrogel and a polyethylene glycol network. Different types of capsules were synthesized (addition or not of the diacrylate monomer) and irradiation of the crosslinking solution at different times. Furthermore, a deep characterization of each type of capsules was performed (chemical and morphological characterization, assessment of their mechanical and thermal properties, evaluation of their biodegradability), noting that the incorporation of the diacrylate monomer (PEGDMA) and the two different irradiation times selected substantially affected the final properties of the capsules. The obtained results will serve to comprehend how the dye can be released from the capsules.
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Affiliation(s)
- Yasmin Kabalan
- Department of Chemical Engineering, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain
| | - Xavier Montané
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, C/Marcel·lí Domingo 1, 43007 Tarragona, Spain.
| | - Bartosz Tylkowski
- Eurecat, Centre Tecnològic de la Química de Catalunya, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Silvia De la Flor
- Department of Mechanical Engineering, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain
| | - Marta Giamberini
- Department of Chemical Engineering, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain
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3
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Sachdev A, Acharya S, Gadodia T, Shukla S, J H, Akre C, Khare M, Huse S. A Review on Techniques and Biomaterials Used in 3D Bioprinting. Cureus 2022; 14:e28463. [PMID: 36176831 PMCID: PMC9511817 DOI: 10.7759/cureus.28463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/27/2022] [Indexed: 11/30/2022] Open
Abstract
Three-dimensional (3D) bioprinting is a cutting-edge technology that has come to light recently and shows a promising potential whose progress will change the face of medicine. This article reviews the most commonly used techniques and biomaterials for 3D bioprinting. We will also look at the advantages and limitations of various techniques and biomaterials and get a comparative idea about them. In addition, we will also look at the recent applications of these techniques in different industries. This article aims to get a basic idea of the techniques and biomaterials used in 3D bioprinting, their advantages and limitations, and their recent applications in various fields.
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4
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Mirzaali MJ, Moosabeiki V, Rajaai SM, Zhou J, Zadpoor AA. Additive Manufacturing of Biomaterials-Design Principles and Their Implementation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5457. [PMID: 35955393 PMCID: PMC9369548 DOI: 10.3390/ma15155457] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/25/2022] [Accepted: 07/28/2022] [Indexed: 05/04/2023]
Abstract
Additive manufacturing (AM, also known as 3D printing) is an advanced manufacturing technique that has enabled progress in the design and fabrication of customised or patient-specific (meta-)biomaterials and biomedical devices (e.g., implants, prosthetics, and orthotics) with complex internal microstructures and tuneable properties. In the past few decades, several design guidelines have been proposed for creating porous lattice structures, particularly for biomedical applications. Meanwhile, the capabilities of AM to fabricate a wide range of biomaterials, including metals and their alloys, polymers, and ceramics, have been exploited, offering unprecedented benefits to medical professionals and patients alike. In this review article, we provide an overview of the design principles that have been developed and used for the AM of biomaterials as well as those dealing with three major categories of biomaterials, i.e., metals (and their alloys), polymers, and ceramics. The design strategies can be categorised as: library-based design, topology optimisation, bio-inspired design, and meta-biomaterials. Recent developments related to the biomedical applications and fabrication methods of AM aimed at enhancing the quality of final 3D-printed biomaterials and improving their physical, mechanical, and biological characteristics are also highlighted. Finally, examples of 3D-printed biomaterials with tuned properties and functionalities are presented.
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Affiliation(s)
- Mohammad J. Mirzaali
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
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5
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Hauser PV, Chang HM, Nishikawa M, Kimura H, Yanagawa N, Hamon M. Bioprinting Scaffolds for Vascular Tissues and Tissue Vascularization. Bioengineering (Basel) 2021; 8:178. [PMID: 34821744 PMCID: PMC8615027 DOI: 10.3390/bioengineering8110178] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 02/07/2023] Open
Abstract
In recent years, tissue engineering has achieved significant advancements towards the repair of damaged tissues. Until this day, the vascularization of engineered tissues remains a challenge to the development of large-scale artificial tissue. Recent breakthroughs in biomaterials and three-dimensional (3D) printing have made it possible to manipulate two or more biomaterials with complementary mechanical and/or biological properties to create hybrid scaffolds that imitate natural tissues. Hydrogels have become essential biomaterials due to their tissue-like physical properties and their ability to include living cells and/or biological molecules. Furthermore, 3D printing, such as dispensing-based bioprinting, has progressed to the point where it can now be utilized to construct hybrid scaffolds with intricate structures. Current bioprinting approaches are still challenged by the need for the necessary biomimetic nano-resolution in combination with bioactive spatiotemporal signals. Moreover, the intricacies of multi-material bioprinting and hydrogel synthesis also pose a challenge to the construction of hybrid scaffolds. This manuscript presents a brief review of scaffold bioprinting to create vascularized tissues, covering the key features of vascular systems, scaffold-based bioprinting methods, and the materials and cell sources used. We will also present examples and discuss current limitations and potential future directions of the technology.
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Affiliation(s)
- Peter Viktor Hauser
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (P.V.H.); (H.-M.C.); (N.Y.)
- Medical and Research Services, Greater Los Angeles Veterans Affairs Healthcare System at Sepulveda, North Hills, CA 91343, USA
| | - Hsiao-Min Chang
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (P.V.H.); (H.-M.C.); (N.Y.)
- Medical and Research Services, Greater Los Angeles Veterans Affairs Healthcare System at Sepulveda, North Hills, CA 91343, USA
| | - Masaki Nishikawa
- Department of Chemical System Engineering, Graduate School of Engineering, University of Tokyo, Tokyo 113-8654, Japan;
| | - Hiroshi Kimura
- Department of Mechanical Engineering, School of Engineering, Tokai University, Isehara 259-1207, Japan;
| | - Norimoto Yanagawa
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (P.V.H.); (H.-M.C.); (N.Y.)
- Medical and Research Services, Greater Los Angeles Veterans Affairs Healthcare System at Sepulveda, North Hills, CA 91343, USA
| | - Morgan Hamon
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (P.V.H.); (H.-M.C.); (N.Y.)
- Medical and Research Services, Greater Los Angeles Veterans Affairs Healthcare System at Sepulveda, North Hills, CA 91343, USA
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6
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Sharma S, Sudhakara P, Singh J, Ilyas RA, Asyraf MRM, Razman MR. Critical Review of Biodegradable and Bioactive Polymer Composites for Bone Tissue Engineering and Drug Delivery Applications. Polymers (Basel) 2021; 13:2623. [PMID: 34451161 PMCID: PMC8399915 DOI: 10.3390/polym13162623] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/29/2021] [Accepted: 07/31/2021] [Indexed: 12/11/2022] Open
Abstract
In the determination of the bioavailability of drugs administered orally, the drugs' solubility and permeability play a crucial role. For absorption of drug molecules and production of a pharmacological response, solubility is an important parameter that defines the concentration of the drug in systemic circulation. It is a challenging task to improve the oral bioavailability of drugs that have poor water solubility. Most drug molecules are either poorly soluble or insoluble in aqueous environments. Polymer nanocomposites are combinations of two or more different materials that possess unique characteristics and are fused together with sufficient energy in such a manner that the resultant material will have the best properties of both materials. These polymeric materials (biodegradable and other naturally bioactive polymers) are comprised of nanosized particles in a composition of other materials. A systematic search was carried out on Web of Science and SCOPUS using different keywords, and 485 records were found. After the screening and eligibility process, 88 journal articles were found to be eligible, and hence selected to be reviewed and analyzed. Biocompatible and biodegradable materials have emerged in the manufacture of therapeutic and pharmacologic devices, such as impermanent implantation and 3D scaffolds for tissue regeneration and biomedical applications. Substantial effort has been made in the usage of bio-based polymers for potential pharmacologic and biomedical purposes, including targeted deliveries and drug carriers for regulated drug release. These implementations necessitate unique physicochemical and pharmacokinetic, microbiological, metabolic, and degradation characteristics of the materials in order to provide prolific therapeutic treatments. As a result, a broadly diverse spectrum of natural or artificially synthesized polymers capable of enzymatic hydrolysis, hydrolyzing, or enzyme decomposition are being explored for biomedical purposes. This summary examines the contemporary status of biodegradable naturally and synthetically derived polymers for biomedical fields, such as tissue engineering, regenerative medicine, bioengineering, targeted drug discovery and delivery, implantation, and wound repair and healing. This review presents an insight into a number of the commonly used tissue engineering applications, including drug delivery carrier systems, demonstrated in the recent findings. Due to the inherent remarkable properties of biodegradable and bioactive polymers, such as their antimicrobial, antitumor, anti-inflammatory, and anticancer activities, certain materials have gained significant interest in recent years. These systems are also actively being researched to improve therapeutic activity and mitigate adverse consequences. In this article, we also present the main drug delivery systems reported in the literature and the main methods available to impregnate the polymeric scaffolds with drugs, their properties, and their respective benefits for tissue engineering.
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Affiliation(s)
- Shubham Sharma
- Regional Centre for Extension and Development, CSIR-Central Leather Research Institute, Leather Complex, Kapurthala Road, Jalandhar 144021, India
- PhD Research Scholar, IK Gujral Punjab Technical University, Jalandhar-Kapurthala, Highway, VPO, Ibban 144603, India
| | - P. Sudhakara
- Regional Centre for Extension and Development, CSIR-Central Leather Research Institute, Leather Complex, Kapurthala Road, Jalandhar 144021, India
| | - Jujhar Singh
- IK Gujral Punjab Technical University, Jalandhar-Kapurthala, Highway, VPO, Ibban 144603, India;
| | - R. A. Ilyas
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia;
- Centre for Advanced Composite Materials, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
| | - M. R. M. Asyraf
- Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia
| | - M. R. Razman
- Research Centre for Sustainability Science and Governance (SGK), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Malaysia
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7
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Immunomodulatory biomaterials and their application in therapies for chronic inflammation-related diseases. Acta Biomater 2021; 123:1-30. [PMID: 33484912 DOI: 10.1016/j.actbio.2021.01.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/05/2020] [Accepted: 01/15/2021] [Indexed: 02/06/2023]
Abstract
The degree of tissue injuries such as the level of scarring or organ dysfunction, and the immune response against them primarily determine the outcome and speed of healing process. The successful regeneration of functional tissues requires proper modulation of inflammation-producing immune cells and bioactive factors existing in the damaged microenvironment. In the tissue repair and regeneration processes, different types of biomaterials are implanted either alone or by combined with other bioactive factors, which will interact with the immune systems including immune cells, cytokines and chemokines etc. to achieve different results highly depending on this interplay. In this review article, the influences of different types of biomaterials such as nanoparticles, hydrogels and scaffolds on the immune cells and the modification of immune-responsive factors such as reactive oxygen species (ROS), cytokines, chemokines, enzymes, and metalloproteinases in tissue microenvironment are summarized. In addition, the recent advances of immune-responsive biomaterials in therapy of inflammation-associated diseases such as myocardial infarction, spinal cord injury, osteoarthritis, inflammatory bowel disease and diabetic ulcer are discussed.
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8
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Hogan KJ, Mikos AG. Biodegradable thermoresponsive polymers: Applications in drug delivery and tissue engineering. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123063] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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9
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Liu F, Wang X. Synthetic Polymers for Organ 3D Printing. Polymers (Basel) 2020; 12:E1765. [PMID: 32784562 PMCID: PMC7466039 DOI: 10.3390/polym12081765] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022] Open
Abstract
Three-dimensional (3D) printing, known as the most promising approach for bioartificial organ manufacturing, has provided unprecedented versatility in delivering multi-functional cells along with other biomaterials with precise control of their locations in space. The constantly emerging 3D printing technologies are the integration results of biomaterials with other related techniques in biology, chemistry, physics, mechanics and medicine. Synthetic polymers have played a key role in supporting cellular and biomolecular (or bioactive agent) activities before, during and after the 3D printing processes. In particular, biodegradable synthetic polymers are preferable candidates for bioartificial organ manufacturing with excellent mechanical properties, tunable chemical structures, non-toxic degradation products and controllable degradation rates. In this review, we aim to cover the recent progress of synthetic polymers in organ 3D printing fields. It is structured as introducing the main approaches of 3D printing technologies, the important properties of 3D printable synthetic polymers, the successful models of bioartificial organ printing and the perspectives of synthetic polymers in vascularized and innervated organ 3D printing areas.
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Affiliation(s)
- Fan Liu
- Center of 3D Printing & Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China;
- Department of Orthodontics, School of Stomatology, China Medical University, No. 117 North Nanjing Street, Shenyang 110003, China
| | - Xiaohong Wang
- Center of 3D Printing & Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China;
- Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
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10
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Tomal W, Ortyl J. Water-Soluble Photoinitiators in Biomedical Applications. Polymers (Basel) 2020; 12:E1073. [PMID: 32392892 PMCID: PMC7285382 DOI: 10.3390/polym12051073] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/02/2020] [Accepted: 05/03/2020] [Indexed: 12/25/2022] Open
Abstract
Light-initiated polymerization processes are currently an important tool in various industrial fields. The advancement of technology has resulted in the use of photopolymerization in various biomedical applications, such as the production of 3D hydrogel structures, the encapsulation of cells, and in drug delivery systems. The use of photopolymerization processes requires an appropriate initiating system that, in biomedical applications, must meet additional criteria such as high water solubility, non-toxicity to cells, and compatibility with visible low-power light sources. This article is a literature review on those compounds that act as photoinitiators of photopolymerization processes in biomedical applications. The division of initiators according to the method of photoinitiation was described and the related mechanisms were discussed. Examples from each group of photoinitiators are presented, and their benefits, limitations, and applications are outlined.
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Affiliation(s)
- Wiktoria Tomal
- Faculty of Chemical Engineering and Technology, Krakow University of Technology, Warszawska 24, 31-155 Krakow, Poland;
| | - Joanna Ortyl
- Faculty of Chemical Engineering and Technology, Krakow University of Technology, Warszawska 24, 31-155 Krakow, Poland;
- Photo HiTech Ltd., Bobrzyńskiego 14, 30-348 Krakow, Poland
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11
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Deliormanlı AM, Türk M. Flow Behavior and Drug Release Study of Injectable Pluronic F-127 Hydrogels containing Bioactive Glass and Carbon-Based Nanopowders. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01346-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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12
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Rödel M, Teßmar J, Groll J, Gbureck U. Tough and Elastic α-Tricalcium Phosphate Cement Composites with Degradable PEG-Based Cross-Linker. MATERIALS (BASEL, SWITZERLAND) 2018; 12:E53. [PMID: 30586905 PMCID: PMC6337656 DOI: 10.3390/ma12010053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/19/2018] [Accepted: 12/21/2018] [Indexed: 11/16/2022]
Abstract
Dual setting cements composed of an in situ forming hydrogel and a reactive mineral phase combine high compressive strength of the cement with sufficient ductility and bending strength of the polymeric network. Previous studies were focused on the modification with non-degradable hydrogels based on 2-hydroxyethyl methacrylate (HEMA). Here, we describe the synthesis of suitable triblock degradable poly(ethylene glycol)-poly(lactide) (PEG-PLLA) cross-linker to improve the resorption capacity of such composites. A study with four different formulations was established. As reference, pure hydroxyapatite (HA) cements and composites with 40 wt% HEMA in the liquid cement phase were produced. Furthermore, HEMA was modified with 10 wt% of PEG-PLLA cross-linker or a test series containing only 25% cross-linker was chosen for composites with a fully degradable polymeric phase. Hence, we developed suitable systems with increased elasticity and 5⁻6 times higher toughness values in comparison to pure inorganic cement matrix. Furthermore, conversion rate from α-tricalcium phosphate (α-TCP) to HA was still about 90% for all composite formulations, whereas crystal size decreased. Based on this material development and advancement for a dual setting system, we managed to overcome the drawback of brittleness for pure calcium phosphate cements.
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Affiliation(s)
- Michaela Rödel
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Jörg Teßmar
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
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13
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Kascholke C, Hendrikx S, Flath T, Kuzmenka D, Dörfler HM, Schumann D, Gressenbuch M, Schulze FP, Schulz-Siegmund M, Hacker MC. Biodegradable and adjustable sol-gel glass based hybrid scaffolds from multi-armed oligomeric building blocks. Acta Biomater 2017; 63:336-349. [PMID: 28927930 DOI: 10.1016/j.actbio.2017.09.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/20/2017] [Accepted: 09/15/2017] [Indexed: 12/22/2022]
Abstract
Biodegradability is a crucial characteristic to improve the clinical potential of sol-gel-derived glass materials. To this end, a set of degradable organic/inorganic class II hybrids from a tetraethoxysilane(TEOS)-derived silica sol and oligovalent cross-linker oligomers containing oligo(d,l-lactide) domains was developed and characterized. A series of 18 oligomers (Mn: 1100-3200Da) with different degrees of ethoxylation and varying length of oligoester units was established and chemical composition was determined. Applicability of an established indirect rapid prototyping method enabled fabrication of a total of 85 different hybrid scaffold formulations from 3-isocyanatopropyltriethoxysilane-functionalized macromers. In vitro degradation was analyzed over 12months and a continuous linear weight loss (0.2-0.5wt%/d) combined with only moderate material swelling was detected which was controlled by oligo(lactide) content and matrix hydrophilicity. Compressive strength (2-30MPa) and compressive modulus (44-716MPa) were determined and total content, oligo(ethylene oxide) content, oligo(lactide) content and molecular weight of the oligomeric cross-linkers as well as material porosity were identified as the main factors determining hybrid mechanics. Cytocompatibility was assessed by cell culture experiments with human adipose tissue-derived stem cells (hASC). Cell migration into the entire scaffold pore network was indicated and continuous proliferation over 14days was found. ALP activity linearly increased over 2weeks indicating osteogenic differentiation. The presented glass-based hybrid concept with precisely adjustable material properties holds promise for regenerative purposes. STATEMENT OF SIGNIFICANCE Adaption of degradation kinetics toward physiological relevance is still an unmet challenge of (bio-)glass engineering. We therefore present a glass-derived hybrid material with adjustable degradation. A flexible design concept based on degradable multi-armed oligomers was combined with an established indirect rapid prototyping method to produce a systematic set of porous sol-gel-derived class II hybrid scaffolds. Mechanical properties in the range of cancellous bone were narrowly controlled by hybrid composition. The oligoester introduction resulted in significantly increased compressive moduli. Cytocompatible hybrids degraded in physiologically relevant time frames and a promising linear and controllable weight loss profile was found. To our knowledge, our degradation study represents the most extensive long-term investigation of sol-gel-derived class II hybrids. Due to the broad adjustability of material properties, our concept offers potential for engineering of biodegradable hybrid materials for versatile applications.
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Affiliation(s)
- Christian Kascholke
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15a, 04317 Leipzig, Germany
| | - Stephan Hendrikx
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15a, 04317 Leipzig, Germany
| | - Tobias Flath
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences, Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany
| | - Dzmitry Kuzmenka
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15a, 04317 Leipzig, Germany
| | - Hans-Martin Dörfler
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences, Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany
| | - Dirk Schumann
- Bubbles and Beyond GmbH, Karl-Heine Straße 99, 04229 Leipzig, Germany
| | | | - F Peter Schulze
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences, Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15a, 04317 Leipzig, Germany
| | - Michael C Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Straße 15a, 04317 Leipzig, Germany.
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14
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Concellón A, Asín L, González-Lana S, de la Fuente JM, Sánchez-Somolinos C, Piñol M, Oriol L. Photopolymers based on ethynyl-functionalized degradable polylactides by thiol-yne ‘Click Chemistry’. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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15
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Worthington KS, Baguenard C, Forney BS, Guymon CA. Photopolymerization kinetics in and of self-assembling lyotropic liquid crystal templates. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24296] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kristan S. Worthington
- Department of Chemical and Biochemical Engineering; The University of Iowa, 4133 Seamans Center; Iowa City Iowa 52242
- Department of Ophthalmology and Visual Sciences; The University of Iowa, 4156 Medical Education and Research Facility; Iowa City Iowa 52242
| | - Céline Baguenard
- Department of Chemical and Biochemical Engineering; The University of Iowa, 4133 Seamans Center; Iowa City Iowa 52242
- Cheminnov - ENSCBP; CANOE; 16 Avenue Pey Berland Pessac 33600 France
| | - Bradley S. Forney
- Department of Chemical and Biochemical Engineering; The University of Iowa, 4133 Seamans Center; Iowa City Iowa 52242
- 3M Construction & Home Improvement Markets Division; 3M Center; 251-1E-19 St. Paul Minnesota 55144
| | - C. Allan Guymon
- Department of Chemical and Biochemical Engineering; The University of Iowa, 4133 Seamans Center; Iowa City Iowa 52242
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16
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Kondiah PJ, Choonara YE, Kondiah PPD, Marimuthu T, Kumar P, du Toit LC, Pillay V. A Review of Injectable Polymeric Hydrogel Systems for Application in Bone Tissue Engineering. Molecules 2016; 21:E1580. [PMID: 27879635 PMCID: PMC6272998 DOI: 10.3390/molecules21111580] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 10/24/2016] [Accepted: 11/16/2016] [Indexed: 11/16/2022] Open
Abstract
Biodegradable, stimuli-responsive polymers are essential platforms in the field of drug delivery and injectable biomaterials for application of bone tissue engineering. Various thermo-responsive hydrogels display water-based homogenous properties to encapsulate, manipulate and transfer its contents to the surrounding tissue, in the least invasive manner. The success of bioengineered injectable tissue modified delivery systems depends significantly on their chemical, physical and biological properties. Irrespective of shape and defect geometry, injectable therapy has an unparalleled advantage in which intricate therapy sites can be effortlessly targeted with minimally invasive procedures. Using material testing, it was found that properties of stimuli-responsive hydrogel systems enhance cellular responses and cell distribution at any site prior to the transitional phase leading to gelation. The substantially hydrated nature allows significant simulation of the extracellular matrix (ECM), due to its similar structural properties. Significant current research strategies have been identified and reported to date by various institutions, with particular attention to thermo-responsive hydrogel delivery systems, and their pertinent focus for bone tissue engineering. Research on future perspective studies which have been proposed for evaluation, have also been reported in this review, directing considerable attention to the modification of delivering natural and synthetic polymers, to improve their biocompatibility and mechanical properties.
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Affiliation(s)
- Pariksha J Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Pierre P D Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
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17
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Kucharczyk P, Pavelková A, Stloukal P, Sedlarík V. Degradation behaviour of PLA-based polyesterurethanes under abiotic and biotic environments. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.04.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Ramazani F, Hiemstra C, Steendam R, Kazazi-Hyseni F, Van Nostrum C, Storm G, Kiessling F, Lammers T, Hennink W, Kok R. Sunitinib microspheres based on [PDLLA-PEG-PDLLA]-b-PLLA multi-block copolymers for ocular drug delivery. Eur J Pharm Biopharm 2015; 95:368-77. [DOI: 10.1016/j.ejpb.2015.02.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/05/2015] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
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19
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Szczepanski CR, Stansbury JW. Modification of linear prepolymers to tailor heterogeneous network formation through photo-initiated Polymerization-Induced Phase Separation. POLYMER 2015; 70:8-18. [PMID: 26190865 PMCID: PMC4503221 DOI: 10.1016/j.polymer.2015.06.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Polymerization-induced phase separation (PIPS) was studied in ambient photopolymerizations of triethylene glycol dimethacrylate (TEGDMA) modified by poly(methyl methacrylate) (PMMA). The molecular weight of PMMA and the rate of network formation (through incident UV-irradiation) were varied to influence both the promotion of phase separation through increases in overall free energy, as well as the extent to which phase development occurs during polymerization through diffusion prior to network gelation. The overall free energy of the polymerizing system increases with PMMA molecular weight, such that PIPS is promoted thermodynamically at low loading levels (5 wt%) of a higher molecular weight PMMA (120 kDa), while a higher loading level (20 wt%) is needed to induce PIPS with lower PMMA molecular weight (11 kDa), and phase separation was not promoted at any loading level tested of the lowest molecular weight PMMA (1 kDa). Due to these differences in overall free energy, systems modified by PMMA (11 kDa) underwent phase separation via Nucleation and Growth, and systems modified by PMMA (120 kDa), followed the Spinodal Decomposition mechanism. Despite differences in phase structure, all materials form a continuous phase rich in TEGDMA homopolymer. At high irradiation intensity (Io=20mW/cm2), the rate of network formation prohibited significant phase separation, even when thermodynamically preferred. A staged curing approach, which utilizes low intensity irradiation (Io=300µW/cm2) for the first ~50% of reaction to allow phase separation via diffusion, followed by a high intensity flood-cure to achieve a high degree of conversion, was employed to form phase-separated networks with reduced polymerization stress yet equivalent final conversion and modulus.
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Affiliation(s)
- Caroline R. Szczepanski
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA
| | - Jeffrey W. Stansbury
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado, Aurora, CO 80045, USA
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20
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Fang J, Zhang K, Jia J, Wang Z, Hu Q. Preparation and characterization of N-phthaloyl-chitosan-g-(PEO–PLA–PEO) as a potential drug carrier. RSC Adv 2015. [DOI: 10.1039/c5ra12984b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of N-phthaloyl-chitosan-g-(PEO–PLA–PEO) and its drug loading capacities and drug release profiles of IMC.
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Affiliation(s)
- Jinda Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ke Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jingwei Jia
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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21
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Chia HN, Wu BM. Improved resolution of 3D printed scaffolds by shrinking. J Biomed Mater Res B Appl Biomater 2014; 103:1415-23. [PMID: 25404276 DOI: 10.1002/jbm.b.33320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 09/04/2014] [Accepted: 10/26/2014] [Indexed: 11/07/2022]
Abstract
Three-dimensional printing (3DP) uses inkjet printheads to selectively deposit liquid binder to adjoin powder particles in a layer-by-layer fashion to create a computer-modeled 3D object. Two general approaches for 3DP have been described for biomedical applications (direct and indirect 3DP). The two approaches offer competing advantages, and both are limited by print resolution. This study describes a materials processing strategy to enhance 3DP resolution by controlled shrinking net-shape scaffolds. Briefly, porogen preforms are printed and infused with the desired monomer or polymer solution. After solidification or polymerization, the porogen is leached and the polymer is allowed to shrink by controlled drying. Heat treatment is performed to retain the dimensions against swelling forces. The main objective of this study is to determine the effects of polymer content and post-processing on dimension, microstructure, and thermomechanical properties of the scaffold. For polyethylene glycol diacrylate (PEG-DA), reducing polymer content corresponded with greater shrinkage with maximum shrinkage of ∼80 vol% at 20% vol% PEG-DA. The secondary heat treatment retains the microarchitecture and new dimensions of the scaffolds, even when the heat-treated scaffolds are immersed into water. To demonstrate shrinkage predictability, 3D components with interlocking positive and negative features were printed, processed, and fitted. This material processing strategy provides an alternative method to enhance the resolution of 3D scaffolds, for a wide range of polymers, without optimizing the binder-powder interaction physics to print each material combination.
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Affiliation(s)
- Helena N Chia
- Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, California, 90095
| | - Benjamin M Wu
- Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, California, 90095.,Division of Advanced Prosthodontics, University of California, Los Angeles, California, 90095.,Department of Materials Science and Engineering, University of California, Los Angeles, California, 90095.,Department of Orthopedic Surgery, University of California, Los Angeles, California, 90095
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22
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Stukel J, Thompson S, Simon L, Willits R. Polyethlyene glycol microgels to deliver bioactive nerve growth factor. J Biomed Mater Res A 2014; 103:604-13. [DOI: 10.1002/jbm.a.35209] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/31/2014] [Accepted: 04/22/2014] [Indexed: 02/05/2023]
Affiliation(s)
- Jessica Stukel
- Department of Biomedical Engineering; The University of Akron; Akron Ohio 44325-0302
| | - Susan Thompson
- Department of Biomedical Engineering; The University of Akron; Akron Ohio 44325-0302
| | - Laurent Simon
- Department of Chemical; Biological; and Pharmaceutical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102
| | - Rebecca Willits
- Department of Biomedical Engineering; The University of Akron; Akron Ohio 44325-0302
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23
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Nanoparticles Based on a Hydrophilic Polyester with a Sheddable PEG Coating for Protein Delivery. Pharm Res 2014; 31:2593-604. [DOI: 10.1007/s11095-014-1355-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 02/27/2014] [Indexed: 11/26/2022]
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24
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Miller KR, Soucek MD. Degradation kinetics of photopolymerizable poly(lactic acid) films. J Appl Polym Sci 2014. [DOI: 10.1002/app.40475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kent R. Miller
- Department of Polymer Engineering; University of Akron; Akron Ohio 44325
| | - Mark D. Soucek
- Department of Polymer Engineering; University of Akron; Akron Ohio 44325
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25
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Fan X, Wang Z, Yuan D, Sun Y, Li Z, He C. Novel linear-dendritic-like amphiphilic copolymers: synthesis and self-assembly characteristics. Polym Chem 2014. [DOI: 10.1039/c4py00065j] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tailoring the self-assembly of linear-dendritic-like amphiphilic copolymers via stereocomplexation.
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Affiliation(s)
- Xiaoshan Fan
- Department of Materials Science and Engineering
- National University of Singapore
- 117575 Singapore, Singapore
| | - Zhuo Wang
- Department of Materials Science and Engineering
- National University of Singapore
- 117575 Singapore, Singapore
| | - Du Yuan
- Department of Materials Science and Engineering
- National University of Singapore
- 117575 Singapore, Singapore
| | - Yang Sun
- Department of Materials Science and Engineering
- National University of Singapore
- 117575 Singapore, Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering
- Singapore 117602, Singapore
| | - Chaobin He
- Department of Materials Science and Engineering
- National University of Singapore
- 117575 Singapore, Singapore
- Institute of Materials Research and Engineering
- Singapore 117602, Singapore
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26
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Hung CY, Huang DK, Wang CC, Chen CY. Preparation, Crystallization Behavior, and Morphology of Poly(lactic acid) Clay Hybrids via Wet Kneading Masterbatch Process. J Inorg Organomet Polym Mater 2013. [DOI: 10.1007/s10904-013-9941-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Hung CY, Wang CC, Chen CY. Enhanced the thermal stability and crystallinity of polylactic acid (PLA) by incorporated reactive PS-b-PMMA-b-PGMA and PS-b-PGMA block copolymers as chain extenders. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.01.045] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Wang Q, Wang C, Du X, Liu Y, Ma L. Synthesis, Thermosensitive Gelation and Degradation Study of a Biodegradable Triblock Copolymer. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.742794] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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Influence of UV irradiation and two photon processing on the cinnamate monomers polymerization and formation of hybrid composites with nanosized ZnO. Eur Polym J 2012. [DOI: 10.1016/j.eurpolymj.2012.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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31
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Chen S, Zhong H, Gu B, Wang Y, Li X, Cheng Z, Zhang L, Yao C. Thermosensitive phase behavior and drug release of in situ N-isopropylacrylamide copolymer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.05.052] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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El Fray M, Skrobot J, Bolikal D, Kohn J. Synthesis and characterization of telechelic macromers containing fatty acid derivatives. REACT FUNCT POLYM 2012. [DOI: 10.1016/j.reactfunctpolym.2012.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Synthesis, characterization and applications of amphiphilic elastomeric polyurethane networks in drug delivery. Polym J 2012. [DOI: 10.1038/pj.2012.131] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Buruiana T, Melinte V, Chibac A, Matiut S, Balan L. Synthesis, Evaluation and Preliminary Antibacterial Testing of Hybrid Composites Based on Urethane Oligodimethacrylates and Ag Nanoparticles. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:955-72. [DOI: 10.1163/092050611x566801] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Tinca Buruiana
- a Romanian Academy, Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania.
| | - Violeta Melinte
- b Romanian Academy, Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Andreea Chibac
- c Romanian Academy, Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Simona Matiut
- d Praxis Medical Investigations, 33 Independence, 700102 Iasi, Romania
| | - Lavinia Balan
- e Institut de Science des Matériaux de Mulhouse CNRS LRC 7228, 15 rue Jean Starcky, 68057 Mulhouse, France
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35
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Yao B, Zhu Q, Liu H, Qiao L, Hao J, Qi F. Conformation and aggregation behavior of poly(ethylene glycol)-b-poly(lactic acid) amphiphilic copolymer chains in dilute/semidilute THF solutions. J Appl Polym Sci 2012. [DOI: 10.1002/app.36613] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Moeinzadeh S, Jabbari E. Mesoscale Simulation of the Effect of a Lactide Segment on the Nanostructure of Star Poly(ethylene glycol-co-lactide)-Acrylate Macromonomers in Aqueous Solution. J Phys Chem B 2012; 116:1536-43. [DOI: 10.1021/jp211056p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Seyedsina Moeinzadeh
- Biomimetic Materials and Tissue Engineering
Laboratories,
Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering
Laboratories,
Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
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37
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Buruiana T, Melinte V, Jitaru F, Buruiana EC, Balan L. Preparation of siloxane-based urethane dimethacrylates carrying carboxylic groups and the effect of silver nanoparticles on the properties of composite polymer films. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.25839] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Degradation controllable biomaterials constructed from lysozyme-loaded Ca-alginate microparticle/chitosan composites. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.09.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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39
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Hydrolytic degradation of poly(d,l-lactide-co-glycolide 50/50)-di-acrylate network as studied by liquid chromatography–mass spectrometry. Polym Degrad Stab 2011. [DOI: 10.1016/j.polymdegradstab.2011.05.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Abstract
This article summarizes the recent progress in the design and synthesis of hydrogels as tissue-engineering scaffolds. Hydrogels are attractive scaffolding materials owing to their highly swollen network structure, ability to encapsulate cells and bioactive molecules, and efficient mass transfer. Various polymers, including natural, synthetic and natural/synthetic hybrid polymers, have been used to make hydrogels via chemical or physical crosslinking. Recently, bioactive synthetic hydrogels have emerged as promising scaffolds because they can provide molecularly tailored biofunctions and adjustable mechanical properties, as well as an extracellular matrix-like microenvironment for cell growth and tissue formation. This article addresses various strategies that have been explored to design synthetic hydrogels with extracellular matrix-mimetic bioactive properties, such as cell adhesion, proteolytic degradation and growth factor-binding.
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Affiliation(s)
- Junmin Zhu
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
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41
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Lomba M, Oriol L, Alcalá R, Sánchez C, Moros M, Grazú V, Serrano JL, De la Fuente JM. In situ photopolymerization of biomaterials by thiol-yne click chemistry. Macromol Biosci 2011; 11:1505-14. [PMID: 21793215 DOI: 10.1002/mabi.201100123] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 05/31/2011] [Indexed: 11/06/2022]
Abstract
The thiol-yne click chemistry reaction has been used for the in situ photocrosslinking of an aliphatic hyperbranched polyester. The biocompatibility of the resulting networks has been studied and marked cytotoxicity was not found for HeLa (human cervical carcinoma) tumoral cells and COS7 fibroblasts. The photoinduced thiol-yne process allows the generation of patterned structures with different geometries in films by DLW and these materials can be used as substrates for cell adhesion. The influence of the substrate geometry on cell adhesion has been studied by culturing cells onto these substrates and a preference for the photopatterned polymeric material can be seen in some of the structures by contrast phase microscopy. Actin and vinculin fluorescent staining revealed different adhesion behavior for HeLa cells and COS7 fibroblasts and this could be assigned to the different motility of cells. The thiol-yne photoreaction has proven to be an attractive approach for the preparation of micropatterned biomaterials.
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Affiliation(s)
- Miguel Lomba
- Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC-Universidad de Zaragoza, Departamento de Química Orgánica, Zaragoza, Spain
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42
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43
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King WJ, Murphy WL. Bioinspired conformational changes: an adaptable mechanism for bio-responsive protein delivery. Polym Chem 2011. [DOI: 10.1039/c0py00244e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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44
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Huang M, Wang Y, Luo Y. Synthesis, characterization, and biodegradation of maleic anhydride, ethylene glycol-copolymerization modified poly(D,L-lactide acid) and their crosslinked products. J Appl Polym Sci 2010. [DOI: 10.1002/app.32692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Zhu J. Bioactive modification of poly(ethylene glycol) hydrogels for tissue engineering. Biomaterials 2010; 31:4639-56. [PMID: 20303169 PMCID: PMC2907908 DOI: 10.1016/j.biomaterials.2010.02.044] [Citation(s) in RCA: 835] [Impact Index Per Article: 59.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Accepted: 02/16/2010] [Indexed: 12/12/2022]
Abstract
In this review, we explore different approaches for introducing bioactivity into poly(ethylene glycol) (PEG) hydrogels. Hydrogels are excellent scaffolding materials for repairing and regenerating a variety of tissues because they can provide a highly swollen three-dimensional (3D) environment similar to soft tissues. Synthetic hydrogels like PEG-based hydrogels have advantages over natural hydrogels, such as the ability for photopolymerization, adjustable mechanical properties, and easy control of scaffold architecture and chemical compositions. However, PEG hydrogels alone cannot provide an ideal environment to support cell adhesion and tissue formation due to their bio-inert nature. The natural extracellular matrix (ECM) has been an attractive model for the design and fabrication of bioactive scaffolds for tissue engineering. ECM-mimetic modification of PEG hydrogels has emerged as an important strategy to modulate specific cellular responses. To tether ECM-derived bioactive molecules (BMs) to PEG hydrogels, various strategies have been developed for the incorporation of key ECM biofunctions, such as specific cell adhesion, proteolytic degradation, and signal molecule-binding. A number of cell types have been immobilized on bioactive PEG hydrogels to provide fundamental knowledge of cell/scaffold interactions. This review addresses the recent progress in material designs and fabrication approaches leading to the development of bioactive hydrogels as tissue engineering scaffolds.
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Affiliation(s)
- Junmin Zhu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
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46
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Essa S, Rabanel JM, Hildgen P. Effect of polyethylene glycol (PEG) chain organization on the physicochemical properties of poly(d, l-lactide) (PLA) based nanoparticles. Eur J Pharm Biopharm 2010; 75:96-106. [DOI: 10.1016/j.ejpb.2010.03.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 02/25/2010] [Accepted: 03/01/2010] [Indexed: 10/19/2022]
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47
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Xiang H, Wang Y, Yang W, Hu C, Mu Y, Li J. Study of the Mechanical and Thermal Properties of Poly(Lactic Acid) and Poly(Ethylene Glycol) Block Copolymer with Molecular Dynamics. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2010. [DOI: 10.1080/10236661003746405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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48
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Essa S, Rabanel JM, Hildgen P. Effect of aqueous solubility of grafted moiety on the physicochemical properties of poly(d,l-lactide) (PLA) based nanoparticles. Int J Pharm 2010; 388:263-73. [PMID: 20060450 DOI: 10.1016/j.ijpharm.2009.12.059] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 12/22/2009] [Accepted: 12/28/2009] [Indexed: 11/16/2022]
Abstract
In order to evaluate the solubility effect of grafted moiety on the physicochemical properties of poly(d,l-lactide) (PLA) based nanoparticles (NPs), two materials of completely different aqueous solubility, polyethylene glycol (PEG) and palmitic acid were grafted on PLA backbone at nearly the same grafting density, 2.5% (mol of grafted moiety/mol of lactic acid monomer). Blank and ibuprofen-loaded NPs were fabricated from both polymers and their properties were compared to PLA homopolymer NPs as a control. NPs were analyzed for major physicochemical parameters such as encapsulation efficiency, size and size distribution, surface charge, thermal properties, surface chemistry, % poly(vinyl alcohol) (PVA) adsorbed at the surface of NPs, and drug release pattern. Encapsulation efficiency of ibuprofen was found to be nearly the same for both polymers approximately 36% and 39% for PEG2.5%-g-PLA and palmitic acid2.5%-g-PLA NPs, respectively. Lyophilized NPs of palmitic acid2.5%-g-PLA either blank or loaded showed larger hydrodynamic diameter ( approximately 180nm) than PEG2.5%-g-PLA NPs ( approximately 135nm). PEG2.5%-g-PLA NPs showed lower % of PVA adsorbed at their surface ( approximately 5%, w/w) than palmitic acid2.5%-g-PLA NPs ( approximately 10%, w/w). Surface charge of palmitic acid2.5%-g-PLA NPs seems to be influenced by the large amount of PVA remains associated within their matrix. Thermal analysis using DSC revealed possible drug crystallization inside NPs. Both AFM phase imaging and XPS studies revealed the tendency of PEG chains to migrate towards the surface of PEG2.5%-g-PLA NPs. While, XPS analysis of palmitic acid2.5%-g-PLA NPs showed the tendency of palmitate chains to position themselves into the inner core of the forming particle avoiding facing the aqueous phase during NPs preparation using O/W emulsion method. The in vitro release pattern showed that PEG2.5%-g-PLA NPs exhibited faster release rates than palmitic acid2.5%-g-PLA NPs. PEG and palmitate chains when grafted onto PLA backbone, different modes of chain organization during NPs formation were obtained, affecting the physicochemical properties of the obtained NPs. The obtained results suggest that the properties of PLA-based NPs can be tuned by judicious selection of both chemistry and solubility profile of grafted material over PLA backbone.
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Affiliation(s)
- Sherief Essa
- C.P. 6128, succursale centre-ville, Montréal, Québec, Canada H3C 3J7
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Xu B, Yuan J, Wang Z, Gao Q. Shell-cross-linked amino acid-modified APLA-b-PEG-Cys copolymer micelle as a drug delivery carrier. J Microencapsul 2009; 26:659-66. [DOI: 10.3109/02652040902968968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Xu B, Yuan J, Ding T, Gao Q. Amphiphilic biodegradable poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) triblock copolymers: synthesis, characterization and their use as drug carriers for folic acid. Polym Bull (Berl) 2009. [DOI: 10.1007/s00289-009-0157-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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