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Quintana-Quirino M, Hernández-Rangel A, Silva-Bermudez P, García-López J, Domínguez-Hernández VM, Araujo Monsalvo VM, Gimeno M, Shirai K. Green Foaming of Biologically Extracted Chitin Hydrogels Using Supercritical Carbon Dioxide for Scaffolding of Human Osteoblasts. Polymers (Basel) 2024; 16:1569. [PMID: 38891515 PMCID: PMC11174636 DOI: 10.3390/polym16111569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Chitin is a structural polysaccharide abundant in the biosphere. Chitin possesses a highly ordered crystalline structure that makes its processing a challenge. In this study, chitin hydrogels and methanogels, prepared by dissolution in calcium chloride/methanol, were subjected to supercritical carbon dioxide (scCO2) to produce porous materials for use as scaffolds for osteoblasts. The control of the morphology, porosity, and physicochemical properties of the produced materials was performed according to the operational conditions, as well as the co-solvent addition. The dissolution of CO2 in methanol co-solvent improved the sorption of the compressed fluid into the hydrogel, rendering highly porous chitin scaffolds. The chitin crystallinity index significantly decreased after processing the hydrogel in supercritical conditions, with a significant effect on its swelling capacity. The use of scCO2 with methanol co-solvent resulted in chitin scaffolds with characteristics adequate to the adhesion and proliferation of osteoblasts.
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Affiliation(s)
- Mariana Quintana-Quirino
- Laboratory of Biopolymers and Pilot Plant of Bioprocessing of Agro-Industrial and Food By-Products, Biotechnology Department, Universidad Autónoma Metropolitana, Mexico City 09340, Mexico; (M.Q.-Q.); (A.H.-R.)
| | - Adriana Hernández-Rangel
- Laboratory of Biopolymers and Pilot Plant of Bioprocessing of Agro-Industrial and Food By-Products, Biotechnology Department, Universidad Autónoma Metropolitana, Mexico City 09340, Mexico; (M.Q.-Q.); (A.H.-R.)
| | - Phaedra Silva-Bermudez
- Tissue Engineering, Cellular Therapy and Regenerative Medicine Unit, Instituto Nacional de Rehabilitación “Luis Guillermo Ibarra Ibarra”, Mexico City 14389, Mexico; (P.S.-B.); (J.G.-L.)
| | - Julieta García-López
- Tissue Engineering, Cellular Therapy and Regenerative Medicine Unit, Instituto Nacional de Rehabilitación “Luis Guillermo Ibarra Ibarra”, Mexico City 14389, Mexico; (P.S.-B.); (J.G.-L.)
| | - Víctor Manuel Domínguez-Hernández
- Biomechanics Laboratory, Instituto Nacional de Rehabilitación “Luis Guillermo Ibarra Ibarra”, Mexico City 14389, Mexico; (V.M.D.-H.); (V.M.A.M.)
| | - Victor Manuel Araujo Monsalvo
- Biomechanics Laboratory, Instituto Nacional de Rehabilitación “Luis Guillermo Ibarra Ibarra”, Mexico City 14389, Mexico; (V.M.D.-H.); (V.M.A.M.)
| | - Miquel Gimeno
- Food and Biotechnology Department, Chemistry Faculty, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - Keiko Shirai
- Laboratory of Biopolymers and Pilot Plant of Bioprocessing of Agro-Industrial and Food By-Products, Biotechnology Department, Universidad Autónoma Metropolitana, Mexico City 09340, Mexico; (M.Q.-Q.); (A.H.-R.)
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Zhou Y, Tian Y, Zhang M. Technical development and application of supercritical CO 2 foaming technology in PCL foam production. Sci Rep 2024; 14:6825. [PMID: 38514733 PMCID: PMC10958027 DOI: 10.1038/s41598-024-57545-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/19/2024] [Indexed: 03/23/2024] Open
Abstract
Polycaprolactone (PCL) has the advantages of good biocompatibility, appropriate biodegradability, non-toxicity, flexibility, and processability. As a result, PCL-based foams can successfully work in bone tissue engineering, medical patches, drug delivery, reinforcing materials, and other applications. A promising technology for producing PCL foam products is supercritical CO2 (ScCO2) foaming technology, which avoids using organic solvents, is green, and has low foaming agent costs. However, due to the limitations of ScCO2 foaming technology, it is no longer possible to use this technology alone to meet current production requirements. Therefore, ScCO2 foaming technology must combine with other technologies to develop PCL foam products with better performance and matching requirements. This paper systematically reviews the technological development of ScCO2 foaming in producing PCL foams. The molding process of ScCO2 foaming and the conventional preparation process of PCL foam products are discussed comprehensively, including the preparation process, advantages, and disadvantages, challenges faced, etc. Six combined technologies for ScCO2 foaming in the production of PCL foams and the applications of PCL foams are presented. Finally, the future remaining research for producing PCL foams by ScCO2 foaming is analyzed.
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Affiliation(s)
- Yujin Zhou
- College of Physical Education, Wuhan Sports University, Wuhan, 430079, China
- College of Science, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Yingrui Tian
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Mengdong Zhang
- Hubei Key Laboratory of Advanced Technology for Automotive Components & Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, Wuhan, 430070, China.
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3
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A review of recent advances in starch-based materials: Bionanocomposites, pH sensitive films, aerogels and carbon dots. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2022. [DOI: 10.1016/j.carpta.2022.100190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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4
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Supercritical CO 2 technology for one-pot foaming and sterilization of polymeric scaffolds for bone regeneration. Int J Pharm 2021; 605:120801. [PMID: 34139307 DOI: 10.1016/j.ijpharm.2021.120801] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 12/21/2022]
Abstract
Sterilization is a quite challenging step in the development of novel polymeric scaffolds for regenerative medicine since conventional sterilization techniques may significantly alter their morphological and physicochemical properties. Supercritical (sc) sterilization, i.e. the use of scCO2 as a sterilizing agent, emerges as a promising sterilization method due to the mild operational conditions and excellent penetration capability. In this work, a scCO2 protocol was implemented for the one-pot preparation and sterilization of poly(ε-caprolactone) (PCL)/poly(lactic-co-glycolic acid) (PLGA) scaffolds. The sterilization conditions were established after screening against both Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa) vegetative bacteria and spores of Bacillus stearothermophilus, Bacillus pumilus and Bacillus atrophaeus. The transition from the sterilization conditions (140 bar, 39 °C) to the compressed foaming (60 bar, 26 °C) was performed through controlled depressurization (3.2 bar/min) and CO2 liquid flow. Controlled depressurization/pressurization cycles were subsequently applied. Using this scCO2 technology toolbox, sterile scaffolds of well-controlled pore architecture were obtained. This sterilization procedure successfully achieved not only SAL-6 against well-known resistant bacteria endospores but also improved the scaffold morphologies compared to standard gamma radiation sterilization procedures.
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Jin M, Shi J, Zhu W, Yao H, Wang DA. Polysaccharide-Based Biomaterials in Tissue Engineering: A Review. TISSUE ENGINEERING PART B-REVIEWS 2021; 27:604-626. [PMID: 33267648 DOI: 10.1089/ten.teb.2020.0208] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In addition to proteins and nucleic acids, polysaccharides are an important type of biomacromolecule widely distributed in plants, animals, and microorganisms. Polysaccharides are considered as promising biomaterials due to their significant bioactivities, natural abundance, immunoactivity, and chemical modifiability for tissue engineering (TE) applications. Due to the similarities of the biochemical properties of polysaccharides and the extracellular matrix of human bodies, polysaccharides are increasingly recognized and accepted. Furthermore, the degradation behavior of these macromolecules is generally nontoxic. Certain delicate properties, such as remarkable mechanical properties and tunable tissue response, can be obtained by modifying the functional groups on the surface of polysaccharide molecules. The applications of polysaccharide-based biomaterials in the TE field have been growing intensively in recent decades, for example, bone/cartilage regeneration, cardiac regeneration, neural regeneration, and skin regeneration. This review summarizes the main essential properties of polysaccharides, including their chemical properties, crosslinking mechanisms, and biological properties, and focuses on the association between their structures and properties. The recent progress in polysaccharide-based biomaterials in various TE applications is reviewed, and the prospects for future studies are addressed as well. We intend this review to offer a comprehensive understanding of and inspiration for the research and development of polysaccharide-based materials in TE.
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Affiliation(s)
- Min Jin
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Junli Shi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, P.R. China
| | - Wenzhen Zhu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, P.R. China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR.,Shenzhen Research Institute, City University of Hong Kong, Shenzhen, P.R. China.,Karolinska Institute Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong SAR
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6
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Shen H, Hu X. Growth factor loading on aliphatic polyester scaffolds. RSC Adv 2021; 11:6735-6747. [PMID: 35423177 PMCID: PMC8694921 DOI: 10.1039/d0ra10232f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/01/2021] [Indexed: 12/20/2022] Open
Abstract
Cells, scaffolds and growth factors are three elements of tissue engineering. The success of tissue engineering methods relies on precise and dynamic interactions between cells, scaffolds and growth factors. Aliphatic polyester scaffolds are promising tissue engineering scaffolds that possess good mechanical properties, low immunogenicity, non-toxicity, and adjustable degradation rates. How growth factors can be loaded onto/into aliphatic polyester scaffolds and be constantly released with the required bioactivity to regulate cell growth and promote defect tissue repair and regeneration has become the main concern of tissue engineering researchers. In this review, the existing main methods of loading growth factors on aliphatic polyester scaffolds, the release behavior of loaded growth factors and their positive effects on cell, tissue repair and regeneration are introduced. Advantages and shortcomings of each method also are mentioned. It is still a great challenge to control the release of loaded growth factors at a certain time and at a concentration simulating the biological environment of native tissue.
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Affiliation(s)
- Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China +86-10-62581241
| | - Xixue Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology Beijing 100190 China +86-10-82545676
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Solvent-Free Processing of Drug-Loaded Poly(ε-Caprolactone) Scaffolds with Tunable Macroporosity by Combination of Supercritical Foaming and Thermal Porogen Leaching. Polymers (Basel) 2021; 13:polym13010159. [PMID: 33406680 PMCID: PMC7795801 DOI: 10.3390/polym13010159] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/27/2020] [Accepted: 12/30/2020] [Indexed: 12/20/2022] Open
Abstract
Demand of scaffolds for hard tissue repair increases due to a higher incidence of fractures related to accidents and bone-diseases that are linked to the ageing of the population. Namely, scaffolds loaded with bioactive agents can facilitate the bone repair by favoring the bone integration and avoiding post-grafting complications. Supercritical (sc-)foaming technology emerges as a unique solvent-free approach for the processing of drug-loadenu7d scaffolds at high incorporation yields. In this work, medicated poly(ε-caprolactone) (PCL) scaffolds were prepared by sc-foaming coupled with a leaching process to overcome problems of pore size tuning of the sc-foaming technique. The removal of the solid porogen (BA, ammonium bicarbonate) was carried out by a thermal leaching taking place at 37 °C and in the absence of solvents for the first time. Macroporous scaffolds with dual porosity (50-100 µm and 200-400 µm ranges) were obtained and with a porous structure directly dependent on the porogen content used. The processing of ketoprofen-loaded scaffolds using BA porogen resulted in drug loading yields close to 100% and influenced its release profile from the PCL matrix to a relevant clinical scenario. A novel solvent-free strategy has been set to integrate the incorporation of solid porogens in the sc-foaming of medicated scaffolds.
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Vila-Parrondo C, García-Astrain C, Liz-Marzán LM. Colloidal systems toward 3D cell culture scaffolds. Adv Colloid Interface Sci 2020; 283:102237. [PMID: 32823220 DOI: 10.1016/j.cis.2020.102237] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/07/2020] [Accepted: 08/07/2020] [Indexed: 12/14/2022]
Abstract
Three-dimensional porous scaffolds are essential for the development of tissue engineering and regeneration, as biomimetic supports to recreate the microenvironment present in natural tissues. To successfully achieve the growth and development of a specific kind of tissue, porous matrices should be able to influence cell behavior by promoting close cell-cell and cell-matrix interactions. To achieve this goal, the scaffold must fulfil a set of conditions, including ordered interconnected porosity to promote cell diffusion and vascularization, mechanical strength to support the tissue during continuous ingrowth, and biocompatibility to avoid toxicity. Among various building approaches to the construction of porous matrices, selected strategies afford hierarchical scaffolds with such defined properties. The control over porosity, microstructure or morphology, is crucial to the fabrication of high-end, reproducible scaffolds for the target application. In this review, we provide an insight into recent advances toward the colloidal fabrication of hierarchical scaffolds. After identifying the main requirements for scaffolds in biomedical applications, conceptual building processes are introduced. Examples of tissue regeneration applications are provided for different scaffold types, highlighting their versatility and biocompatibility. We finally provide a prospect about the current state of the art and limitations of porous scaffolds, along with challenges that are to be addressed, so these materials consolidate in the fields of tissue engineering and drug delivery.
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Shaqour B, Reigada I, Górecka Ż, Choińska E, Verleije B, Beyers K, Święszkowski W, Fallarero A, Cos P. 3D-Printed Drug Delivery Systems: The Effects of Drug Incorporation Methods on Their Release and Antibacterial Efficiency. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3364. [PMID: 32751210 PMCID: PMC7435804 DOI: 10.3390/ma13153364] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 02/06/2023]
Abstract
Additive manufacturing technologies have been widely used in the medical field. More specifically, fused filament fabrication (FFF) 3D-printing technology has been thoroughly investigated to produce drug delivery systems. Recently, few researchers have explored the possibility of directly 3D printing such systems without the need for producing a filament which is usually the feedstock material for the printer. This was possible via direct feeding of a mixture consisting of the carrier polymer and the required drug. However, as this direct feeding approach shows limited homogenizing abilities, it is vital to investigate the effect of the pre-mixing step on the quality of the 3D printed products. Our study investigates the two commonly used mixing approaches-solvent casting and powder mixing. For this purpose, polycaprolactone (PCL) was used as the main polymer under investigation and gentamicin sulfate (GS) was selected as a reference. The produced systems' efficacy was investigated for bacterial and biofilm prevention. Our data show that the solvent casting approach offers improved drug distribution within the polymeric matrix, as was observed from micro-computed topography and scanning electron microscopy visualization. Moreover, this approach shows a higher drug release rate and thus improved antibacterial efficacy. However, there were no differences among the tested approaches in terms of thermal and mechanical properties.
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Affiliation(s)
- Bahaa Shaqour
- Voxdale bv, Bijkhoevelaan 32C, 2110 Wijnegem, Belgium; (B.V.); (K.B.)
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1 S.7, 2610 Antwerp, Belgium;
| | - Inés Reigada
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00790 Helsinki, Finland; (I.R.); (A.F.)
| | - Żaneta Górecka
- Faculty of Materials Sciences and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (Ż.G.); (E.C.); (W.Ś.)
| | - Emilia Choińska
- Faculty of Materials Sciences and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (Ż.G.); (E.C.); (W.Ś.)
| | - Bart Verleije
- Voxdale bv, Bijkhoevelaan 32C, 2110 Wijnegem, Belgium; (B.V.); (K.B.)
| | - Koen Beyers
- Voxdale bv, Bijkhoevelaan 32C, 2110 Wijnegem, Belgium; (B.V.); (K.B.)
| | - Wojciech Święszkowski
- Faculty of Materials Sciences and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (Ż.G.); (E.C.); (W.Ś.)
| | - Adyary Fallarero
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00790 Helsinki, Finland; (I.R.); (A.F.)
| | - Paul Cos
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1 S.7, 2610 Antwerp, Belgium;
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10
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Santos-Rosales V, Iglesias-Mejuto A, García-González CA. Solvent-Free Approaches for the Processing of Scaffolds in Regenerative Medicine. Polymers (Basel) 2020; 12:E533. [PMID: 32131405 PMCID: PMC7182956 DOI: 10.3390/polym12030533] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/12/2020] [Accepted: 02/17/2020] [Indexed: 01/12/2023] Open
Abstract
The regenerative medicine field is seeking novel strategies for the production of synthetic scaffolds that are able to promote the in vivo regeneration of a fully functional tissue. The choices of the scaffold formulation and the manufacturing method are crucial to determine the rate of success of the graft for the intended tissue regeneration process. On one hand, the incorporation of bioactive compounds such as growth factors and drugs in the scaffolds can efficiently guide and promote the spreading, differentiation, growth, and proliferation of cells as well as alleviate post-surgical complications such as foreign body responses and infections. On the other hand, the manufacturing method will determine the feasible morphological properties of the scaffolds and, in certain cases, it can compromise their biocompatibility. In the case of medicated scaffolds, the manufacturing method has also a key effect in the incorporation yield and retained activity of the loaded bioactive agents. In this work, solvent-free methods for scaffolds production, i.e., technological approaches leading to the processing of the porous material with no use of solvents, are presented as advantageous solutions for the processing of medicated scaffolds in terms of efficiency and versatility. The principles of these solvent-free technologies (melt molding, 3D printing by fused deposition modeling, sintering of solid microspheres, gas foaming, and compressed CO2 and supercritical CO2-assisted foaming), a critical discussion of advantages and limitations, as well as selected examples for regenerative medicine purposes are herein presented.
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Affiliation(s)
| | | | - Carlos A. García-González
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Health Research Institute of Santiago de Compostela (IDIS), Agrupación Estratégica de Materiales (AeMAT), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (V.S.-R.); (A.I.-M.)
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11
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Pearce HA, Kim YS, Diaz-Gomez L, Mikos AG. Tissue Engineering Scaffolds. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00082-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Tahmasebi A, Enderami SE, Saburi E, Islami M, Yaslianifard S, Mahabadi JA, Ardeshirylajimi A, Soleimanifar F, Moghadam AS. Micro‐RNA‐incorporated electrospun nanofibers improve osteogenic differentiation of human‐induced pluripotent stem cells. J Biomed Mater Res A 2019; 108:377-386. [PMID: 31654461 DOI: 10.1002/jbm.a.36824] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Aylin Tahmasebi
- Department of Biotechnology College of Science, University of Tehran Tehran Iran
| | - Seyed E. Enderami
- Immunogenetics research center, Department of Medical Biotechnology, Faculty of Medicine Mazandaran university of Medical Sciences Sari Iran
| | - Ehsan Saburi
- Medical Genetics and Molecular Medicine Department School of Medicine, Mashhad University of Medical Sciences Mashhad Iran
| | - Maryam Islami
- Dietary Supplements and Probiotic Research Center Alborz University of Medical Sciences Karaj Iran
| | - Somayeh Yaslianifard
- Dietary Supplements and Probiotic Research Center Alborz University of Medical Sciences Karaj Iran
- Department of Microbiology School of Medicine, Alborz University of Medical Sciences Karaj Iran
| | - Javad A. Mahabadi
- Gametogenesis Research Center Kashan University of Medical Sciences Kashan Iran
| | - Abdolreza Ardeshirylajimi
- Department of Tissue engineering and Applied Cell Sciences School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences Tehran Iran
- Department of Biochemistry Saint Louis University St. Louis Missouri
| | - Fatemeh Soleimanifar
- Dietary Supplements and Probiotic Research Center Alborz University of Medical Sciences Karaj Iran
- Department of Medical Biotechnology School of Medicine, Alborz University of Medical Sciences Karaj Iran
| | - Abbas S. Moghadam
- Department of Immunogenetics Bu‐Ali Research Institute, Mashhad University of Medical Sciences Mashhad Iran
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13
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Tsai WC, Wang Y. Progress of supercritical fluid technology in polymerization and its applications in biomedical engineering. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101161] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Foaming of Polycaprolactone and Its Impregnation with Quercetin Using Supercritical CO 2. Polymers (Basel) 2019; 11:polym11091390. [PMID: 31450780 PMCID: PMC6780592 DOI: 10.3390/polym11091390] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 01/01/2023] Open
Abstract
Foamed polycaprolactone impregnated with quercetin was carried out with a batch foaming technique using supercritical CO2. The experimental design was developed to study the influence of pressure (15–30 MPa), temperature (308–333 K), and depressurization rate (0.1–20) on the foam structure, melting temperature, and release tests of composites. The characterization of the experiments was carried out using scanning electron microscopy, X-ray diffractometer, and differential scanning calorimetry techniques. It was observed that the porosity created in the polymer had a heterogeneous structure, as well as the impregnation of the quercetin during the process. On the other hand, controlled release tests showed a significant delay in the release of quercetin compared to commercial quercetin.
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15
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Li S, Song C, Yang S, Yu W, Zhang W, Zhang G, Xi Z, Lu E. Supercritical CO 2 foamed composite scaffolds incorporating bioactive lipids promote vascularized bone regeneration via Hif-1α upregulation and enhanced type H vessel formation. Acta Biomater 2019; 94:253-267. [PMID: 31154054 DOI: 10.1016/j.actbio.2019.05.066] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 05/22/2019] [Accepted: 05/26/2019] [Indexed: 01/27/2023]
Abstract
Bone tissue engineering has substantial potential for the treatment of massive bone defects; however, efficient vascularization coupled with bone regeneration still remains a challenge in this field. In the current study, supercritical carbon dioxide (scCO2) foaming technique was adopted to fabricate mesoporous bioactive glasses (MBGs) particle-poly (lactic-co-glycolic acid) (PLGA) composite scaffolds with appropriate mechanical and degradation properties as well as in vitro bioactivity. The MBG-PLGA scaffolds incorporating the bioactive lipid FTY720 (designated as FTY/MBG-PLGA) exhibited simultaneously sustained release of the bioactive lipid and ions. In addition to providing a favorable microenvironment for cellular adhesion and proliferation, FTY/MBG-PLGA scaffolds significantly facilitated the in vitro osteogenic differentiation of rBMSCs and also markedly stimulated the upregulation of Hif-1α expression via the activation of the Erk1/2 pathway, which mediated the osteogenic and pro-angiogenic effects on rBMSCs. Furthermore, FTY/MBG-PLGA extracts induced superior in vitro angiogenic performance of HUVECs. In vivo evaluation of critical-sized rat calvarial bone defects indicated that FTY/MBG-PLGA scaffolds potently promoted vascularized bone regeneration. Notably, the significantly enhanced formation of type H vessels (CD31hiEmcnhi neo-vessels) was observed in newly formed bone tissue in FTY/MBG-PLGA group, strongly suggesting that FTY720 and therapeutic ions released from the scaffolds synergistically induced more type H vessel formation, which indicated the coupling of angiogenesis and osteogenesis to achieve efficiently vascularized bone regeneration. Overall, the results indicated that the foamed porous MBG-PLGA scaffolds incorporating bioactive lipids achieved desirable vascularization-coupled bone formation and could be a promising strategy for bone regenerative medicine. STATEMENT OF SIGNIFICANCE: Efficacious coupling of vascularizationandbone formation is critical for the restoration of large bone defects. Anoveltechnique was used to fabricate composite scaffolds incorporating bioactive lipids which possessedsynergistic cues of bioactive lipids and therapeutic ions to potently promotebone regenerationas well as vascularization. The underlying molecular mechanism for the osteogenic and pro-angiogenic effects of the compositescaffolds was unveiled. Interestingly, the scaffolds were furtherfoundto enhance the formation oftype H capillarieswithin the bone healing microenvironment to couple angiogenesis to osteogenesis to achieve satisfyingvascularizedbone regeneration.These findings provide a novel strategy to develop efficiently vascularized engineering constructs to treat massive bone defects.
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Affiliation(s)
- Shuang Li
- Department of Stomatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Chaobo Song
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, China
| | - Shengbing Yang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, China
| | - Weijun Yu
- College of Stomatology, School of Medicine, Shanghai Jiao Tong University, 390 Yanqiao Road, Shanghai, China
| | - Weiqi Zhang
- Department of Stomatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Guohua Zhang
- Department of Stomatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Zhenhao Xi
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, China.
| | - Eryi Lu
- Department of Stomatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China.
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16
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Goimil L, Santos-Rosales V, Delgado A, Évora C, Reyes R, Lozano-Pérez AA, Aznar-Cervantes SD, Cenis JL, Gómez-Amoza JL, Concheiro A, Alvarez-Lorenzo C, García-González CA. scCO2-foamed silk fibroin aerogel/poly(ε-caprolactone) scaffolds containing dexamethasone for bone regeneration. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.02.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Supercritical fluid-assisted controllable fabrication of open and highly interconnected porous scaffolds for bone tissue engineering. SCIENCE CHINA-LIFE SCIENCES 2019; 62:1670-1682. [PMID: 31025172 DOI: 10.1007/s11427-018-9393-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 12/10/2018] [Indexed: 01/13/2023]
Abstract
Recently tremendous progress has been evidenced by the advancements in developing innovative three-dimensional (3D) scaffolds using various techniques for addressing the autogenous grafting of bone. In this work, we demonstrated the fabrication of porous polycaprolactone (PCL) scaffolds for osteogenic differentiation based on supercritical fluid-assisted hybrid processes of phase inversion and foaming. This eco-friendly process resulted in the highly porous biomimetic scaffolds with open and interconnected architectures. Initially, a 23 factorial experiment was designed for investigating the relative significance of various processing parameters and achieving better control over the porosity as well as the compressive mechanical properties of the scaffold. Then, single factor experiment was carried out to understand the effects of various processing parameters on the morphology of scaffolds. On the other hand, we encapsulated a growth factor, i.e., bone morphogenic protein-2 (BMP-2), as a model protein in these porous scaffolds for evaluating their osteogenic differentiation. In vitro investigations of growth factor loaded PCL scaffolds using bone marrow stromal cells (BMSCs) have shown that these growth factor-encumbered scaffolds were capable of differentiating the cells over the control experiments. Furthermore, the osteogenic differentiation was confirmed by measuring the cell proliferation, and alkaline phosphatase (ALP) activity, which were significantly higher demonstrating the active bone growth. Together, these results have suggested that the fabrication of growth factor-loaded porous scaffolds prepared by the eco-friendly hybrid processing efficiently promoted the osteogenic differentiation and may have a significant potential in bone tissue engineering.
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18
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Franco P, Reverchon E, De Marco I. PVP/ketoprofen coprecipitation using supercritical antisolvent process. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.09.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Goimil L, Jaeger P, Ardao I, Gómez-Amoza JL, Concheiro A, Alvarez-Lorenzo C, García-González CA. Preparation and stability of dexamethasone-loaded polymeric scaffolds for bone regeneration processed by compressed CO2 foaming. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2017.12.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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20
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García-González CA, Barros J, Rey-Rico A, Redondo P, Gómez-Amoza JL, Concheiro A, Alvarez-Lorenzo C, Monteiro FJ. Antimicrobial Properties and Osteogenicity of Vancomycin-Loaded Synthetic Scaffolds Obtained by Supercritical Foaming. ACS APPLIED MATERIALS & INTERFACES 2018; 10:3349-3360. [PMID: 29313664 DOI: 10.1021/acsami.7b17375] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Advanced porous synthetic scaffolds are particularly suitable for regeneration of damaged tissues, but there is the risk of infections due to the colonization of microorganisms, forming biofilms. Supercritical foaming is an attractive processing method to prepare bone scaffolds, regulating simultaneously the porosity and loading of bioactive compounds without loss of activity. In this work, scaffolds made of poly-ε-caprolactone (50 kDa), containing chitosan and an antimicrobial agent (vancomycin), were processed by supercritical CO2 foaming for bone regeneration purposes. The obtained scaffolds showed a suitable combination of morphological (porosity, pore size distribution, and interconnectivity), time-dependent in vitro vancomycin release behavior and biological properties (cell viability and proliferation, osteodifferentiation, and tissue-scaffold integration). The scaffolds sustained vancomycin release for more than 2 weeks. Finally, the antimicrobial activity of the scaffolds was tested against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria after 24 h of incubation with full growth inhibition for S. aureus.
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Affiliation(s)
- Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Joana Barros
- FEUP-Faculdade de Engenharia, Universidade do Porto, I3S-Instituto de Investigação e Inovação em Saúde, and INEB-Instituto de Engenharia Biomédica , Porto 4200-135, Portugal
| | - Ana Rey-Rico
- Center of Experimental Orthopaedics, Saarland University Medical Center , Homburg 66421, Germany
| | - Pablo Redondo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - José L Gómez-Amoza
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , E-15782 Santiago de Compostela, Spain
| | - Fernando J Monteiro
- FEUP-Faculdade de Engenharia, Universidade do Porto, I3S-Instituto de Investigação e Inovação em Saúde, and INEB-Instituto de Engenharia Biomédica , Porto 4200-135, Portugal
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21
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Growth factor delivery strategies for rotator cuff repair and regeneration. Int J Pharm 2018; 544:358-371. [PMID: 29317260 DOI: 10.1016/j.ijpharm.2018.01.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 12/21/2017] [Accepted: 01/01/2018] [Indexed: 12/21/2022]
Abstract
The high incidence of degenerative tears and prevalence of retears (20-95%) after surgical repair makes rotator cuff injuries a significant health problem. This high retear rate is attributed to the failure of the repaired tissue to regenerate the native tendon-to-bone insertion (enthesis). Biological augmentation of surgical repair such as autografts, allografts, and xenografts are confounded by donor site morbidity, immunogenicity, and disease transmission, respectively. In contrast, these risks may be alleviated via growth factor therapy, which can actively influence the healing environment to promote functional repair. Several challenges have to be overcome before growth factor delivery can translate into clinical practice such as the selection of optimal growth factor(s) or combination, identification of the most efficient stage and duration of delivery, and the design considerations for the delivery device. Emerging insight into the injury-repair microenvironment and our understanding of growth factor mechanisms in healing are informing the design of advanced delivery scaffolds to effectively treat rotator cuff tears. Here, we review potential growth factor candidates, design parameters and material selection for growth factor delivery, innovative and dynamic delivery scaffolds, and novel therapeutic targets from tendon and developmental biology for the structural and functional healing of rotator cuff repair.
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22
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23
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Diba M, Pape B, Klymov A, Zhang Y, Song J, Löwik DWPM, Seyednejad H, Leeuwenburgh SCG. Nanostructured raspberry-like gelatin microspheres for local delivery of multiple biomolecules. Acta Biomater 2017; 58:67-79. [PMID: 28579541 DOI: 10.1016/j.actbio.2017.05.059] [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: 01/27/2017] [Revised: 05/15/2017] [Accepted: 05/31/2017] [Indexed: 11/30/2022]
Abstract
Multicompartment particles, which are particles composed of smaller building units, have gained considerable interest during the past decade to facilitate simultaneous and differential delivery of several biomolecules in various applications. Supercritical carbon dioxide (CO2) processing is an industrial technology widely used for large-scale synthesis and processing of materials. However, the application of this technology for production of multicompartment particles from colloidal particles has not yet been explored. Here, we report the formation of raspberry-like gelatin (RLG) microparticles composed of gelatin nanoparticles as colloidal building blocks through supercritical CO2 processing. We show that these RLG microparticles exhibit a high stability upon dispersion in aqueous media without requiring chemical cross-linking. We further demonstrate that these microparticles are cytocompatible and facilitate differential release of two different model compounds. The strategy presented here can be utilized as a cost-effective route for production of various types of multicompartment particles using colloidal particles with suitable interparticle interactions. STATEMENT OF SIGNIFICANCE Multicompartment particles have gained considerable interest during the past decade to facilitate simultaneous and differential delivery of multiple biomolecules in various biomedical applications. Nevertheless, common methods employed for the production of such particles are often complex and only offer small-scale production. Here, we report the formation of raspberry-like gelatin (RLG) microparticles composed of gelatin nanoparticles as colloidal building blocks through supercritical CO2 processing. We show that these microparticles are cytocompatible and facilitate differential release of two model compounds with different molecular sizes, promising successful applications in various biomedical areas. Summarizing, this paper presents a novel strategy that can be utilized as a cost-effective route for production of various types of multicompartment particles using a wide range of colloidal building blocks.
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Affiliation(s)
- Mani Diba
- Department of Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525 EX Nijmegen, The Netherlands
| | - Bram Pape
- FeyeCon Development and Implementation B.V., Rijnkade 17A, 1382 GS Weesp, The Netherlands
| | - Alexey Klymov
- Department of Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525 EX Nijmegen, The Netherlands
| | - Yang Zhang
- Department of Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525 EX Nijmegen, The Netherlands
| | - Jiankang Song
- Department of Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525 EX Nijmegen, The Netherlands
| | - Dennis W P M Löwik
- Department of Bio-organic Chemistry, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Hajar Seyednejad
- FeyeCon Development and Implementation B.V., Rijnkade 17A, 1382 GS Weesp, The Netherlands
| | - Sander C G Leeuwenburgh
- Department of Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525 EX Nijmegen, The Netherlands.
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24
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Kankala RK, Zhang YS, Wang SB, Lee CH, Chen AZ. Supercritical Fluid Technology: An Emphasis on Drug Delivery and Related Biomedical Applications. Adv Healthc Mater 2017; 6:10.1002/adhm.201700433. [PMID: 28752598 PMCID: PMC5849475 DOI: 10.1002/adhm.201700433] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/12/2017] [Indexed: 12/18/2022]
Abstract
During the past few decades, supercritical fluid (SCF) has emerged as an effective alternative for many traditional pharmaceutical manufacturing processes. Operating active pharmaceutical ingredients (APIs) alone or in combination with various biodegradable polymeric carriers in high-pressure conditions provides enhanced features with respect to their physical properties such as bioavailability enhancement, is of relevance to the application of SCF in the pharmaceutical industry. Herein, recent advances in drug delivery systems manufactured using the SCF technology are reviewed. We provide a brief description of the history, principle, and various preparation methods involved in the SCF technology. Next, we aim to give a brief overview, which provides an emphasis and discussion of recent reports using supercritical carbon dioxide (SC-CO2 ) for fabrication of polymeric carriers, for applications in areas related to drug delivery, tissue engineering, bio-imaging, and other biomedical applications. We finally summarize with perspectives.
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Affiliation(s)
- Ranjith Kumar Kankala
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Shi-Bin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
| | - Chia-Hung Lee
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 97401, Taiwan
| | - Ai-Zheng Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
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25
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Electrospun polymer scaffolds modified with drugs for tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:493-499. [DOI: 10.1016/j.msec.2017.03.306] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 03/27/2017] [Accepted: 03/31/2017] [Indexed: 11/18/2022]
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26
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Biodegradable PCL/fibroin/hydroxyapatite porous scaffolds prepared by supercritical foaming for bone regeneration. Int J Pharm 2017; 527:115-125. [DOI: 10.1016/j.ijpharm.2017.05.038] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 05/16/2017] [Accepted: 05/17/2017] [Indexed: 02/04/2023]
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27
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Salerno A, Diéguez S, Diaz-Gomez L, Gómez-Amoza JL, Magariños B, Concheiro A, Domingo C, Alvarez-Lorenzo C, García-González CA. Synthetic scaffolds with full pore interconnectivity for bone regeneration prepared by supercritical foaming using advanced biofunctional plasticizers. Biofabrication 2017; 9:035002. [DOI: 10.1088/1758-5090/aa78c5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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Facile fabrication of polyurethane microcapsules carriers for tracing cellular internalization and intracellular pH-triggered drug release. Colloids Surf B Biointerfaces 2017; 153:160-167. [DOI: 10.1016/j.colsurfb.2017.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 02/06/2017] [Accepted: 02/14/2017] [Indexed: 11/23/2022]
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29
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Prosapio V, Reverchon E, De Marco I. Incorporation of liposoluble vitamins within PVP microparticles using supercritical antisolvent precipitation. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.04.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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30
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Supercritical processing of starch aerogels and aerogel-loaded poly(ε-caprolactone) scaffolds for sustained release of ketoprofen for bone regeneration. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.01.028] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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32
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Diaz-Gomez L, Yang F, Jansen JA, Concheiro A, Alvarez-Lorenzo C, García-González CA. Low viscosity-PLGA scaffolds by compressed CO2foaming for growth factor delivery. RSC Adv 2016. [DOI: 10.1039/c6ra09369h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Foaming technology using supercritical and compressed fluids has emerged as a promising solution in regenerative medicine for manufacturing porous polymeric scaffolds.
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Affiliation(s)
- L. Diaz-Gomez
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - F. Yang
- Department of Biomaterials
- Radboud University Medical Center
- 6500 HB Nijmegen
- The Netherlands
| | - J. A. Jansen
- Department of Biomaterials
- Radboud University Medical Center
- 6500 HB Nijmegen
- The Netherlands
| | - A. Concheiro
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - C. Alvarez-Lorenzo
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - C. A. García-González
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
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