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Healy AV, Fuenmayor E, Doran P, Geever LM, Higginbotham CL, Lyons JG. Additive Manufacturing of Personalized Pharmaceutical Dosage Forms via Stereolithography. Pharmaceutics 2019; 11:pharmaceutics11120645. [PMID: 31816898 PMCID: PMC6955879 DOI: 10.3390/pharmaceutics11120645] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/25/2019] [Accepted: 11/28/2019] [Indexed: 12/04/2022] Open
Abstract
The introduction of three-dimensional printing (3DP) has created exciting possibilities for the fabrication of dosage forms, paving the way for personalized medicine. In this study, oral dosage forms of two drug concentrations, namely 2.50% and 5.00%, were fabricated via stereolithography (SLA) using a novel photopolymerizable resin formulation based on a monomer mixture that, to date, has not been reported in the literature, with paracetamol and aspirin selected as model drugs. In order to produce the dosage forms, the ratio of poly(ethylene glycol) diacrylate (PEGDA) to poly(caprolactone) triol was varied with diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (Irgacure TPO) utilized as the photoinitiator. The fabrication of 28 dosages in one print process was possible and the printed dosage forms were characterized for their drug release properties. It was established that both drugs displayed a sustained release over a 24-h period. The physical properties were also investigated, illustrating that SLA affords accurate printing of dosages with some statistically significant differences observed from the targeted dimensional range, indicating an area for future process improvement. The work presented in this paper demonstrates that SLA has the ability to produce small, individualized batches which may be tailored to meet patients’ specific needs or provide for the localized production of pharmaceutical dosage forms.
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Affiliation(s)
- Andrew V. Healy
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Co., Westmeath N37 HD68, Ireland; (A.V.H.); (E.F.); (L.M.G.); (C.L.H.)
| | - Evert Fuenmayor
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Co., Westmeath N37 HD68, Ireland; (A.V.H.); (E.F.); (L.M.G.); (C.L.H.)
| | - Patrick Doran
- Applied Polymer Technologies Gateway, Athlone Institute of Technology, Dublin Road, Athlone, Co., Westmeath N37 HD68, Ireland;
| | - Luke M. Geever
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Co., Westmeath N37 HD68, Ireland; (A.V.H.); (E.F.); (L.M.G.); (C.L.H.)
| | - Clement L. Higginbotham
- Materials Research Institute, Athlone Institute of Technology, Dublin Road, Athlone, Co., Westmeath N37 HD68, Ireland; (A.V.H.); (E.F.); (L.M.G.); (C.L.H.)
| | - John G. Lyons
- Faculty of Engineering and Informatics, Athlone Institute of Technology, Dublin Road, Athlone, Co., Westmeath N37 HD68, Ireland
- Correspondence: ; Tel.: +353-(0)90-64-68150
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La Gatta A, Ricci G, Stellavato A, Cammarota M, Filosa R, Papa A, D’Agostino A, Portaccio M, Delfino I, De Rosa M, Schiraldi C. Hyaluronan hydrogels with a low degree of modification as scaffolds for cartilage engineering. Int J Biol Macromol 2017; 103:978-989. [DOI: 10.1016/j.ijbiomac.2017.05.091] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/30/2017] [Accepted: 05/16/2017] [Indexed: 12/21/2022]
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3
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Gao Y, Zhu G, Xu S, Ma T, Nie J. Biodegradable magnetic-sensitive shape memory poly(ɛ-caprolactone)/Fe3
O4
nanocomposites. J Appl Polym Sci 2017. [DOI: 10.1002/app.45652] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yuliang Gao
- Department of Applied Chemistry; Northwestern Polytechnical University; 127 West Friendship Road, Xi'an 710072 People's Republic of China
| | - Guangming Zhu
- Department of Applied Chemistry; Northwestern Polytechnical University; 127 West Friendship Road, Xi'an 710072 People's Republic of China
| | - Shuogui Xu
- Emergency Medicine Department & Trauma Emergency Center; Changhai Hospital, Second Military Medical University; 168 Changhai Road, Shanghai 200433 People's Republic of China
| | - Tuotuo Ma
- Department of Applied Chemistry; Northwestern Polytechnical University; 127 West Friendship Road, Xi'an 710072 People's Republic of China
| | - Jing Nie
- Department of Applied Chemistry; Northwestern Polytechnical University; 127 West Friendship Road, Xi'an 710072 People's Republic of China
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Kim JW, Shin YC, Lee JJ, Bae EB, Jeon YC, Jeong CM, Yun MJ, Lee SH, Han DW, Huh JB. The Effect of Reduced Graphene Oxide-Coated Biphasic Calcium Phosphate Bone Graft Material on Osteogenesis. Int J Mol Sci 2017; 18:E1725. [PMID: 28786931 PMCID: PMC5578115 DOI: 10.3390/ijms18081725] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 07/31/2017] [Accepted: 08/06/2017] [Indexed: 12/16/2022] Open
Abstract
This study was conducted to evaluate the effect of biphasic calcium phosphate (BCP) coated with reduced graphene oxide (rGO) as bone graft materials on bone regeneration. The rGO-coated BCP bone graft material was fabricatied by mixing rGO and BCP at various concentrations. The surface charge of rGO-coated BCP was measured to be -14.43 mV, which formed a static electrostatic interaction. Cell viabilities were significantly diminished at higher concentrations of ≥100 μg/mL. The calvarial defects of 48 rats were implanted rGO-coated BCPs at a weight ratio of 2:1000 (rGO2), 4:1000 (rGO4), and 10:1000 (rGO10), repectively. BCP was used as a control group. The micro-CT and histological analysis were performed to evaluate new bone formation at 2 and 8 weeks after surgery. The results showed that the new bone volume (mm³) was significantly higher in the experimental groups than in the control group. Histological analysis showed that new bone areas (%) were significantly higher in the rGO2 and rGO10 than in the control, and significantly higher in rGO4 than in the rGO2 and rGO10. Conclusively, the rGO-coated BCP was found to be effective on osteogenesis and the concentration of the composite was an important factor.
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Affiliation(s)
- Jeong-Woo Kim
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Yong Cheol Shin
- Department of CognoMechatronics Engineering, Pusan National University, Busan 46241, Korea.
| | - Jin-Ju Lee
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Eun-Bin Bae
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Young-Chan Jeon
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Chang-Mo Jeong
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Mi-Jung Yun
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - So-Hyoun Lee
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Dong-Wook Han
- Department of CognoMechatronics Engineering, Pusan National University, Busan 46241, Korea.
| | - Jung-Bo Huh
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
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5
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Wu CC, Hsu LH, Tsai YF, Sumi S, Yang KC. Enhancement of biodegradation and osseointegration of poly(
ε
-caprolactone)/calcium phosphate ceramic composite screws for osteofixation using calcium sulfate. Biomed Mater 2016; 11:025012. [DOI: 10.1088/1748-6041/11/2/025012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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6
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Gibin G, Lorenzetti A, Callone E, Dirè S, Dolcet P, Venzo A, Causin V, Marigo A, Modesti M, Gross S. Smart and Covalently Cross-Linked: Hybrid Shape Memory Materials Reinforced through Covalent Bonds by Zirconium Oxoclusters. Chempluschem 2016; 81:338-350. [PMID: 31968791 DOI: 10.1002/cplu.201500339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 12/08/2015] [Indexed: 11/08/2022]
Abstract
The first examples of organic-inorganic hybrid materials reinforced by transition-metal oxoclusters that exhibit shape memory properties, based on the covalent incorporation of zirconium-based inorganic building blocks, are reported. Methacrylate-functionalized zirconium oxoclusters Zr4 O2 (OMc)12 and [Zr6 O4 (OH)4 (OOCCH2 CH3 )3 {OOCC(CH3 )=CH2 }9 ]2 , with the covalent incorporation in a butyl acrylate (BA)/polycaprolactone dimethacrylate (PCLDMA) copolymer and the noncovalent incorporation of [Zr6 O4 (OH)4 (OOCCH2 CH3 )12 ]2 are focused upon herein. Shape recovery and fixity rates are studied to observe if the shape memory properties are preserved upon going from a simple copolymer to noncovalent or covalent-based hybrids. These rates display values higher than 90 %, which provides evidence that the oxocluster does not hinder the shape memory properties in the hybrid materials. The introduction of an inorganic phase and the progressively more stable interactions between organic and inorganic parts lead to an enhancement of the thermomechanical properties. The materials are characterized through FTIR spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and swelling tests. Dynamic-mechanical analyses are used to investigate whether the hybrid materials display thermally activated shape memory properties. The stability of the hybrid materials are evaluated by a combined spectroscopic approach based on FTIR, solid-state NMR, and X-ray absorption spectroscopy.
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Affiliation(s)
- Giacomo Gibin
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Alessandra Lorenzetti
- Dipartimento di Ingegneria Industriale, Università degli Studi di Padova, via Marzolo 9, 35131, Padova, Italy
| | - Emanuela Callone
- Dipartimento di Ingegneria Industriale, Università degli Studi di Trento, via Sommarive 9, 38123, Trento, Italy
| | - Sandra Dirè
- Dipartimento di Ingegneria Industriale, Università degli Studi di Trento, via Sommarive 9, 38123, Trento, Italy
| | - Paolo Dolcet
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy.,Istituto per l'Energetica e le Interfasi, IENI-CNR and INSTM, UdR di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Alfonso Venzo
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy.,Istituto per l'Energetica e le Interfasi, IENI-CNR and INSTM, UdR di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Valerio Causin
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Antonio Marigo
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Michele Modesti
- Dipartimento di Ingegneria Industriale, Università degli Studi di Padova, via Marzolo 9, 35131, Padova, Italy
| | - Silvia Gross
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy.,Istituto per l'Energetica e le Interfasi, IENI-CNR and INSTM, UdR di Padova, via Marzolo 1, 35131, Padova, Italy
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7
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Preliminary In Vitro Assessment of Stem Cell Compatibility with Cross-Linked Poly(ε-caprolactone urethane) Scaffolds Designed through High Internal Phase Emulsions. Stem Cells Int 2015; 2015:283796. [PMID: 26161094 PMCID: PMC4464009 DOI: 10.1155/2015/283796] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 03/31/2015] [Indexed: 12/21/2022] Open
Abstract
By using a high internal phase emulsion process, elastomeric poly(ε-caprolactone urethane) (PCLU) scaffolds were designed with pores size ranging from below 150 μm to 1800 μm and a porosity of 86% making them suitable for bone tissue engineering applications. Moreover, the pores appeared to be excellently interconnected, promoting cellularization and future bone ingrowth. This study evaluated the in vitro cytotoxicity of the PCLU scaffolds towards human mesenchymal stem cells (hMSCs) through the evaluation of cell viability and metabolic activity during extract test and indirect contact test at the beginning of the scaffold lifetime. Both tests demonstrated that PCLU scaffolds did not induce any cytotoxic response. Finally, direct interaction of hMSCs and PCLU scaffolds showed that PCLU scaffolds were suitable for supporting the hMSCs adhesion and that the cells were well spread over the pore walls. We conclude that PCLU scaffolds may be a good candidate for bone tissue regeneration applications using hMSCs.
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8
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La Gatta A, Papa A, Schiraldi C, De Rosa M. Hyaluronan dermal fillers via crosslinking with 1,4-butandiol diglycidyl ether: Exploitation of heterogeneous reaction conditions. J Biomed Mater Res B Appl Biomater 2015; 104:9-18. [DOI: 10.1002/jbm.b.33329] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 10/13/2014] [Accepted: 11/04/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Annalisa La Gatta
- Department of Experimental Medicine; Faculty of Medicine; Second University of Naples; Via L. De Crecchio 7 80138 Naples Italy
| | - Agata Papa
- Department of Experimental Medicine; Faculty of Medicine; Second University of Naples; Via L. De Crecchio 7 80138 Naples Italy
| | - Chiara Schiraldi
- Department of Experimental Medicine; Faculty of Medicine; Second University of Naples; Via L. De Crecchio 7 80138 Naples Italy
| | - Mario De Rosa
- Department of Experimental Medicine; Faculty of Medicine; Second University of Naples; Via L. De Crecchio 7 80138 Naples Italy
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9
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The Influence of Hydroxyapatite and Calcium Carbonate Microparticles on the Mechanical Properties of Nonwoven Composite Materials Based on Polycaprolactone. BIONANOSCIENCE 2014. [DOI: 10.1007/s12668-014-0158-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Hruschka V, Saeed A, Slezak P, Cheikh Al Ghanami R, Feichtinger GA, Alexander C, Redl H, Shakesheff K, Wolbank S. Evaluation of a thermoresponsive polycaprolactone scaffold for in vitro three-dimensional stem cell differentiation. Tissue Eng Part A 2014; 21:310-9. [PMID: 25167885 DOI: 10.1089/ten.tea.2013.0710] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Tissue engineering (TE) strategies aim at imitating the natural process of regeneration by using bioresorbable scaffolds that support cellular attachment, migration, proliferation, and differentiation. Based on the idea of combining a fully degradable polymer [poly(ɛ-caprolactone)] with a thermoresponsive polymer (polyethylene glycol methacrylate), a scaffold was developed, which liquefies below 20°C and solidifies at 37°C. In this study, this scaffold was evaluated for its ability to support C2C12 cells and human adipose-derived stem cells (ASCs) to generate an expandable three-dimensional (3D) construct for soft or bone TE. As a first step, biomaterial seeding was optimized and cellular attachment, survival, distribution, and persistence within the 3D material were characterized. C2C12 cells were differentiated toward the osteogenic as well as myogenic lineage, while ASCs were cultured in control, adipogenic, or osteogenic differentiation media. Differentiation was examined using quantitative real-time PCR for the expression of osteogenic, myogenic, and adipogenic markers and by enzyme activity and immunoassays. Both cell types attached and were found evenly distributed within the material. C2C12 cells and ASCs demonstrated the potential to differentiate in all tested lineages under 2D conditions. Under 3D osteogenic conditions for C2C12 cells, only osteocalcin expression (fold induction: 16.3±0.2) and alkaline phosphatase (ALP) activity (p<0.001) were increased compared with the control C2C12 cells. Three-dimensional osteogenic differentiation of ASC was limited and donor dependent. Only one donor showed an increase in the osteogenic markers osteocalcin (p=0.027) and osteopontin (p=0.038). In contrast, differentiation toward the myogenic or adipogenic lineage showed expression of specific markers in 3D, at least at the level of the 2D culture. In 3D culture, strong induction of myogenin (p<0.001) as well as myoD (p<0.001) was found in C2C12 cells. The adipogenic differentiation of one donor showed greater expression of peroxisome proliferative-activated receptor gamma (PPARγ) (p=0.004), fatty acid binding protein 4 (FABP4) (p=0.008), and adiponectin (p=0.045) in 3D compared with 2D culture. Leptin levels in the supernatant of the ASC cultures were elevated in the 3D cultures in both donors at day 14 and 21. In conclusion, the thermoresponsive scaffold was found suitable for 3D in vitro differentiation toward soft tissue.
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Affiliation(s)
- Veronika Hruschka
- 1 Ludwig Boltzmann Institute for Experimental and Clinical Traumatology , AUVA Research Centre, Austrian Cluster for Tissue Regeneration, Vienna, Austria
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11
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12
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La Gatta A, Schiraldi C, Papa A, D’Agostino A, Cammarota M, De Rosa A, De Rosa M. Hyaluronan scaffolds via diglycidyl ether crosslinking: Toward improvements in composition and performance. Carbohydr Polym 2013; 96:536-44. [DOI: 10.1016/j.carbpol.2013.04.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/26/2013] [Accepted: 04/10/2013] [Indexed: 10/26/2022]
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13
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Wang MO, Etheridge JM, Thompson JA, Vorwald CE, Dean D, Fisher JP. Evaluation of the in vitro cytotoxicity of cross-linked biomaterials. Biomacromolecules 2013; 14:1321-9. [PMID: 23627804 DOI: 10.1021/bm301962f] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This study evaluated the in vitro cytotoxicity of poly(propylene fumarate) (PPF). PPF is an aliphatic biodegradable polymer that has been well characterized for use in bone tissue engineering scaffolds. Four different cell types, human mesenchymal stem cells (hMSC), fibroblasts (L929), preosteoblasts (MC3T3), and canine mesenchymal stem cells (cMSC), were used to evaluate the cytotoxicity of PPF. These cell types represent the tissues that PPF would interact with in vivo as a bone tissue scaffold. The sol fraction of the PPF films was measured and then utilized to estimate cross-linking density. Cytotoxicity was evaluated using XTT assay and fluorescence imaging. Results showed that PPF supported similar cell metabolic activities of hMSC, L929, MC3T3, and cMSC compared to the noncytotoxic control, high-density polyethylene (HDPE) and were statistically different than those cultured with the cytotoxic control, a polyurethane film containing 0.1% zinc diethyldithiocarbamate (ZCF). Results showed differing cellular responses to ZCF, the cytotoxic control. The L929 cells had the lowest cell metabolic activity levels after exposure to ZCF compared to the cell metabolic activity levels of the MC3T3, hMSC, or cMSC cells. Qualitative verification of the results using fluorescence imaging demonstrated no change in cell morphology, vacuolization, or detachment when cultured with PPF compared to HDPE or blank media cultures. Overall, the cytotoxicity response of the cells to PPF was demonstrated to be similar to the cytotoxic response of cells to known noncytotoxic materials (HDPE).
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Affiliation(s)
- Martha O Wang
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20740, United States
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Yang DH, Park HN, Bae MS, Lee JB, Heo DN, Lee WJ, Park YM, Cho YH, Kim DS, Kwon IK. Evaluation of GENESIS-BCP™ scaffold composed of hydroxyapatite and β-tricalcium phosphate on bone formation. Macromol Res 2012. [DOI: 10.1007/s13233-012-0090-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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He Y, Gao J, Li X, Ma Z, Zhang Y, Li M, Zhang Y, Wang X, Qiu H, Liu Y. Fabrication of Injectable Calcium Sulfate Bone Graft Material. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 21:1313-30. [PMID: 20534187 DOI: 10.1163/092050609x12517190417678] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Yongqiang He
- a School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Jianping Gao
- b School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiulan Li
- c Tianjin Orthopedic Hospital, Tianjin 300211, P. R. China
| | - Zhiqing Ma
- d School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yang Zhang
- e Tianjin Orthopedic Hospital, Tianjin 300211, P. R. China
| | - Min Li
- f School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yongli Zhang
- g Tianjin Huanhu Hospital, Tianjin 300060, P. R. China
| | - Xiaodong Wang
- h School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Haixia Qiu
- i School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yu Liu
- j School of Science, Tianjin University, Tianjin 300072, P. R. China
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Li Z, Kong W, Li X, Xu C, He Y, Gao J, Ma Z, Wang X, Zhang Y, Xing F, Li M, Liu Y. Antibiotic-Containing Biodegradable Bead Clusters with Porous PLGA Coating as Controllable Drug-Releasing Bone Fillers. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1713-31. [PMID: 20836923 DOI: 10.1163/092050610x521603] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Zhiliang Li
- a School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Weina Kong
- b School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiulan Li
- c Tianjin Orthopedic Hospital, Tianjin 300211, P. R. China
| | - Chen Xu
- d Beijing 302 Hospital, Beijing 300060, P. R. China
| | - Yongqiang He
- e School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Jianping Gao
- f School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Zhiqing Ma
- g School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiaodong Wang
- h School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yang Zhang
- i Tianjin Orthopedic Hospital, Tianjin 300211, P. R. China
| | - Fubao Xing
- j School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Min Li
- k School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yu Liu
- l School of Science, Tianjin University, Tianjin 300072, P. R. China.
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Properties of newly-synthesized cationic semi-interpenetrating hydrogels containing either hyaluronan or chondroitin sulfate in a methacrylic matrix. J Funct Biomater 2012; 3:225-38. [PMID: 24955528 PMCID: PMC4047938 DOI: 10.3390/jfb3020225] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 02/23/2012] [Accepted: 03/12/2012] [Indexed: 11/24/2022] Open
Abstract
Extracellular matrix components such as hyaluronan (HA) and chondroitin sulfate (CS) were combined with a synthetic matrix of p(HEMA-co-METAC) (poly(2-hydroxyethylmethacrylate-co-2-methacryloxyethyltrimethylammonium)) at 1% and 2% w/w concentration following a previously developed procedure. The resulting semi-interpenetrating hydrogels were able to extensively swell in water incrementing their dry weight up to 13 fold depending on the glycosamminoglycan content and nature. When swollen in physiological solution, materials water uptake significantly decreased, and the differences in swelling capability became negligible. In physiological conditions, HA was released from the materials up to 38%w/w while CS was found almost fully retained. Materials were not cytotoxic and a biological evaluation, performed using 3T3 fibroblasts and an original time lapse videomicroscopy station, revealed their appropriateness for cell adhesion and proliferation. Slight differences observed in the morphology of adherent cells suggested a better performance of CS containing hydrogels.
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18
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Surface properties of amino-functionalized poly(ε-caprolactone) membranes and the improvement of human mesenchymal stem cell behavior. J Colloid Interface Sci 2012; 368:64-9. [DOI: 10.1016/j.jcis.2011.11.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 11/01/2011] [Accepted: 11/03/2011] [Indexed: 11/16/2022]
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19
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Synthesis, characterization and photopolymerization of vinyl ether and acrylate functionalized hybrid oligo-caprolactone. JOURNAL OF POLYMER RESEARCH 2011. [DOI: 10.1007/s10965-011-9748-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Anand A, Pundir R, Pandian CS, Saraf S, Gupta H. Cefoperazone sodium impregnated polycaprolactone composite implant for osteomyelitis. Indian J Pharm Sci 2011; 71:377-81. [PMID: 20502542 PMCID: PMC2865808 DOI: 10.4103/0250-474x.57285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2008] [Revised: 07/03/2009] [Accepted: 07/04/2009] [Indexed: 11/05/2022] Open
Abstract
The use of local antibiotics from a biodegradable implant for chronic osteomyelitis is an attractive alternative. The implant delivers high antibiotic concentration at tissue levels, obliterates dead space, aids bone repair and does not need to be removed. The purpose of this paper is to develop and evaluate a calcium sulphate and polycaprolactone based composite biodegradable implantable delivery system of cefoperazone sodium. Implants were prepared by modified fabrication technique to avoid solvent use. Interaction studies were carried out to check any incompatibility between ingredients. Prepared implants were evaluated for various in vitro parameters like dimensions, hardness, tensile strength, drug release profile and sterility. Morphological changes in pellet before and after drug release were evaluated by scanning electron microscopy. The pellet were also tested for microbiological efficacy and compared with plain drug solution in different concentrations. Developed pellets are regular in shape and size with good tensile strength. The release profile displayed drug levels above MIC continuously up to 2 months. Wide zone of inhibition by pellet against Staph. aureus as compared to drug solution proves its efficacy in treatment of osteomyelitis.
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Affiliation(s)
- A Anand
- Babu Banarasi Das National Institute of Technology & Management, Lucknow-226 007, India
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22
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Zhu W, Tong X, Xie W, Shen Z. A novel initiating system for ring-opening polymerization of ε-caprolactone: Synthesis of triarm star-shaped poly(ε-caprolactone). J Appl Polym Sci 2010. [DOI: 10.1002/app.30431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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23
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Wang JH, Lin UH, Lin CH, Chung YC, Chen CR, Kao YC, Lai JY, Young TH. Change in neuron aggregation and neurite fasciculation on EVAL membranes modified with different diamines. J Biomed Mater Res A 2010; 94:489-98. [PMID: 20186774 DOI: 10.1002/jbm.a.32716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In this study, we modified poly(ethylene-co-vinyl alcohol) (EVAL) membranes by the covalent bonding of diamines via epoxidation of surface hydroxyl groups of EVAL to analyze the effect of immobilized diamines with different carbon chain length on the cultured cerebellar granule neurons. Morphological studies showed that neurons seeded on the diamine-immobilized EVAL membrane were able to survive and regenerate with formation of an extensive neuritic network. Furthermore, cultured neurons showed that the presence of diamine with different carbon chain length was able to effectively regulate the neuron adhesion, migration, aggregation, and neurite growth pattern, but mediated neuronal activity with equal efficacy. The short-chain amine stimulated neuron migration, aggregation, and neurite fasciculation, whereas the long carbon chain diamine maintained single neuron distribution with the defasciculated feature of the neurite. Although it is known that positively charged amine molecules can interact directly with cell surface proteoglycans to mediate cell attachment, this study further demonstrated that the terminal primary amine with different carbon chain length is involved in mediating cell-substrate interaction to further regulate neuron aggregation and neurite fasciculation. This indicates a delicate interaction of neuron with the immobilized diamine molecules on the EVAL membrane surface. This work is encouraging because the diamine- immobilized EVAL membranes can be applied for the establishment of different neural culture systems useful for future investigations of neuron biology under in vitro conditions.
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Affiliation(s)
- Jyh-Horng Wang
- Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei, Taiwan, Republic of China
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La Gatta A, Schiraldi C, Esposito A, D'Agostino A, De Rosa A. Novel poly(HEMA-co-METAC)/alginate semi-interpenetrating hydrogels for biomedical applications: Synthesis and characterization. J Biomed Mater Res A 2009; 90:292-302. [DOI: 10.1002/jbm.a.32094] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Campos E, Cordeiro R, Alves P, Rasteiro MG, Gil MH. Polyurethane-based microparticles: Formulation and influence of processes variables on its characteristics. J Microencapsul 2008; 25:154-69. [DOI: 10.1080/02652040701806476] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Park JG, Ye Q, Topp EM, Kostoryz EL, Wang Y, Kieweg SL, Spencer P. Preparation and Properties of Novel Dentin Adhesives with Esterase Resistance. J Appl Polym Sci 2008; 107:3588-3597. [PMID: 22919119 PMCID: PMC3423966 DOI: 10.1002/app.27512] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A new methacrylate monomer, trimethylolpropane mono allyl ether dimethacrylate (TMPEDMA), was synthesized and evaluated. This branched methacrylate was designed to increase esterase-resistance when incorporated into conventional HEMA (2-hydroxyethyl methacrylate)/BisGMA (2,2-bis[4(2-hydroxy-3-methacryloyloxy-propyloxy)-phenyl] propane) dental adhesives. The new adhesives, HEMA/BisGMA/TMPEDMA in a 45/30/25 (w/w) ratio were formulated with H(2)O at 0 (A0T) and 8 wt % water (A8T) and compared with control adhesives (HEMA/BisGMA, 45/55 (w/w), at 0 (A0) and 8 wt % (A8) water). Camphoroquinone (CQ), 2-(dimethylamino) ethyl methacrylate and diphenyliodonium hexafluorophosphate were used as photoinitiators. The new adhesives showed a degree of conversion comparable with the control and improved modulus and glass transition temperature (T(g)). Exposure of photopolymerized discs to porcine liver esterase for up to eight days showed that the net cumulative methacrylic acid (MAA) release in adhesives formulated with the new monomer and 8% water (A8T: 182 μg/mL) was dramatically (P < 0.05) decreased in comparison to the control (A8: 361.6 μg/mL). The results demonstrate that adhesives made with the new monomer and cured in water to simulate wet bonding are more resistant to esterase than conventional HEMA/BisGMA adhesive.
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Affiliation(s)
- Jong-Gu Park
- Department of Oral Biology, University of Missouri-Kansas City School of Dentistry, Kansas City, Missouri 64108
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27
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Wan Y, Feng G, Shen FH, Laurencin CT, Li X. Biphasic scaffold for annulus fibrosus tissue regeneration. Biomaterials 2007; 29:643-52. [PMID: 17997480 DOI: 10.1016/j.biomaterials.2007.10.031] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2007] [Accepted: 10/15/2007] [Indexed: 11/17/2022]
Abstract
Intervertebral disc (IVD) degeneration is the major cause of lower back pain, while the currently available treatments are symptomatic rather than curative. Tissue engineering is a powerful therapeutic strategy that can restore the normal biomechanical motion of the human spine. The ability of a biphasic elastic scaffold to structurally and elastically simulate the annulus fibrosus (AF) tissue of the IVD was explored. The outer phase of the scaffold was a ring-shaped demineralized bone matrix gelatin (BMG) extracted from cortical bone, which mimicks the type I collagen structure and ligamentous properties of outer AF. The inner phase of the scaffold was a bio-biomaterial poly(polycaprolactone triol malate) (PPCLM) orientated in concentric sheets and seeded with chondrocytes to recapitulate the inner layer of the AF, which is rich in type II collagen and proteoglycan. The mechanical properties and degradation of PPCLM could be adjusted by controlling the post-polymerization time of the pre-polymer. PPCLM also demonstrated good biocompatibility in a foreign body response in vivo assay. Incorporation of BMG into the scaffold enhanced the compressive strength compared with PPCLM alone. In addition, the tensile stress of the BMG/PPCLM scaffold was 50-fold greater than that of PPCLM alone, and close to that of normal rabbit AF. Finally, the biphasic scaffold supported the growth of rabbit chondrocytes, as confirmed by Safranin-O and type II collagen immunostaining. The excellent mechanical properties and biocompatibility of the BMG/PPCLM scaffold make it a promising candidate for AF repair.
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Affiliation(s)
- Yuqing Wan
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
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Escobar Ivirico JL, Salmerón Sánchez M, Sabater i Serra R, Meseguer Dueñas JM, Gómez Ribelles JL, Monleón Pradas M. Structure and Properties of Poly(ɛ-caprolactone) Networks with Modulated Water Uptake. MACROMOL CHEM PHYS 2006. [DOI: 10.1002/macp.200600399] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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