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Wang Y, Chen G, Zhang H, Zhao C, Sun L, Zhao Y. Emerging Functional Biomaterials as Medical Patches. ACS NANO 2021; 15:5977-6007. [PMID: 33856205 DOI: 10.1021/acsnano.0c10724] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Medical patches have been widely explored and applied in various medical fields, especially in wound healing, tissue engineering, and other biomedical areas. Benefiting from emerging biomaterials and advanced manufacturing technologies, great achievements have been made on medical patches to evolve them into a multifunctional medical device for diverse health-care purposes, thus attracting extensive attention and research interest. Here, we provide up-to-date research concerning emerging functional biomaterials as medical patches. An overview of the various approaches to construct patches with micro- and nanoarchitecture is presented and summarized. We then focus on the applications, especially the biomedical applications, of the medical patches, including wound healing, drug delivery, and real-time health monitoring. The challenges and prospects for the future development of the medical patches are also discussed.
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Affiliation(s)
- Yu Wang
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008 Nanjing, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Guopu Chen
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008 Nanjing, China
| | - Han Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Cheng Zhao
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008 Nanjing, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Lingyun Sun
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008 Nanjing, China
| | - Yuanjin Zhao
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008 Nanjing, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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Phung Hai TA, Tessman M, Neelakantan N, Samoylov AA, Ito Y, Rajput BS, Pourahmady N, Burkart MD. Renewable Polyurethanes from Sustainable Biological Precursors. Biomacromolecules 2021; 22:1770-1794. [PMID: 33822601 DOI: 10.1021/acs.biomac.0c01610] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to the depletion of fossil fuels, higher oil prices, and greenhouse gas emissions, the scientific community has been conducting an ongoing search for viable renewable alternatives to petroleum-based products, with the anticipation of increased adaptation in the coming years. New academic and industrial developments have encouraged the utilization of renewable resources for the development of ecofriendly and sustainable materials, and here, we focus on those advances that impact polyurethane (PU) materials. Vegetable oils, algae oils, and polysaccharides are included among the major renewable resources that have supported the development of sustainable PU precursors to date. Renewable feedstocks such as algae have the benefit of requiring only sunshine, carbon dioxide, and trace minerals to generate a sustainable biomass source, offering an improved carbon footprint to lessen environmental impacts. Incorporation of renewable content into commercially viable polymer materials, particularly PUs, has increasing and realistic potential. Biobased polyols can currently be purchased, and the potential to expand into new monomers offers exciting possibilities for new product development. This Review highlights the latest developments in PU chemistry from renewable raw materials, as well as the various biological precursors being employed in the synthesis of thermoset and thermoplastic PUs. We also provide an overview of literature reports that focus on biobased polyols and isocyanates, the two major precursors to PUs.
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Affiliation(s)
- Thien An Phung Hai
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Marissa Tessman
- Algenesis Materials Inc., 1238 Sea Village Drive, Cardiff, California 92007, United States
| | - Nitin Neelakantan
- Algenesis Materials Inc., 1238 Sea Village Drive, Cardiff, California 92007, United States
| | - Anton A Samoylov
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Yuri Ito
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Bhausaheb S Rajput
- Food and Fuel for the 21st Century, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0435, United States
| | - Naser Pourahmady
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Michael D Burkart
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States.,Algenesis Materials Inc., 1238 Sea Village Drive, Cardiff, California 92007, United States.,Food and Fuel for the 21st Century, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0435, United States
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Szczepańczyk P, Szlachta M, Złocista-Szewczyk N, Chłopek J, Pielichowska K. Recent Developments in Polyurethane-Based Materials for Bone Tissue Engineering. Polymers (Basel) 2021; 13:polym13060946. [PMID: 33808689 PMCID: PMC8003502 DOI: 10.3390/polym13060946] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/16/2022] Open
Abstract
To meet the needs of clinical medicine, bone tissue engineering is developing dynamically. Scaffolds for bone healing might be used as solid, preformed scaffolding materials, or through the injection of a solidifiable precursor into the defective tissue. There are miscellaneous biomaterials used to stimulate bone repair including ceramics, metals, naturally derived polymers, synthetic polymers, and other biocompatible substances. Combining ceramics and metals or polymers holds promise for future cures as the materials complement each other. Further research must explain the limitations of the size of the defects of each scaffold, and additionally, check the possibility of regeneration after implantation and resistance to disease. Before tissue engineering, a lot of bone defects were treated with autogenous bone grafts. Biodegradable polymers are widely applied as porous scaffolds in bone tissue engineering. The most valuable features of biodegradable polyurethanes are good biocompatibility, bioactivity, bioconductivity, and injectability. They may also be used as temporary extracellular matrix (ECM) in bone tissue healing and regeneration. Herein, the current state concerning polyurethanes in bone tissue engineering are discussed and introduced, as well as future trends.
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Pinto LS, Nakane Matsumoto MA, Romualdo PC, Romano FL, da Silva RAB, da Silva LAB, de Queiroz AM, Nelson-Filho P. Esthetic elastomeric ligatures: Quantification of bacterial endotoxin in vitro and in vivo. Am J Orthod Dentofacial Orthop 2021; 159:660-665. [PMID: 33714568 DOI: 10.1016/j.ajodo.2020.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 12/01/2019] [Accepted: 02/01/2020] [Indexed: 11/16/2022]
Abstract
INTRODUCTION The objective of this study was to evaluate in vitro and in vivo bacterial endotoxin (LPS) adhesion in polyurethane and silicone esthetic elastomeric orthodontic ligatures. The null hypotheses tested were: (1) there is no LPS adhesion in esthetic elastomeric orthodontic ligatures; and (2) there is no difference in the LPS adhesion between different brands of these ligatures. METHODS For the in vitro study, 4 types of esthetic elastomeric ligatures were used (Sani-Ties and Sili-Ties [Dentsply GAC, Islandia, NY;] and Mini Single Case Ligature Stick and Synergy low-friction ligatures [Rocky Mountain Orthodontics, Denver, Colo]), contaminated or not with endotoxin solution. Replicas of twisted wire and cast stainless steel ligatures were used as control. For the in vivo study, 10 male and 10 female patients, aged 15-30 years, received the same 4 types of ligatures, 1 of each inserted in the maxillary and mandibular canines, randomly. Twenty-one days later, the ligatures were removed, and endotoxin quantification was performed using the Limulus amebocyte lysate test. Data were analyzed (α = 0.05) using the Kruskal-Wallis test and Dunn's posttest or analysis of variance and Tukey's posttest. RESULTS GAC silicone group had the lowest median contamination (1.15 endotoxin units/mL; P <0.0001) in vitro. In the in vivo study, the GAC silicone group had the lowest mean contamination (0.577 endotoxin units/mL; P <0.001). In both studies, the other groups did not present a significant difference when compared with each other (P >0.05). CONCLUSIONS LPS exhibited an affinity for all the tested polyurethane and silicone elastomeric ligatures. GAC silicone ligatures presented with lower amounts of LPS attached to their surfaces. Thus, both null hypotheses were rejected.
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Affiliation(s)
- Letícia Sgarbi Pinto
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Mírian Aiko Nakane Matsumoto
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Priscilla Coutinho Romualdo
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Fábio Lourenço Romano
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Raquel Assed Bezerra da Silva
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Léa Assed Bezerra da Silva
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Alexandra Mussolino de Queiroz
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paulo Nelson-Filho
- Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Li X, Liu W, Li Y, Lan W, Zhao D, Wu H, Feng Y, He X, Li Z, Li J, Luo F, Tan H. Mechanically robust enzymatically degradable shape memory polyurethane urea with a rapid recovery response induced by NIR. J Mater Chem B 2020; 8:5117-5130. [DOI: 10.1039/d0tb00798f] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
NIR-light triggered shape memory process involving PU/gold-nanorod composites is shown.
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Rohman G, Changotade S, Frasca S, Ramtani S, Consalus A, Langueh C, Collombet JM, Lutomski D. In vitro and in vivo proves of concept for the use of a chemically cross-linked poly(ester-urethane-urea) scaffold as an easy handling elastomeric biomaterial for bone regeneration. Regen Biomater 2019; 6:311-323. [PMID: 31827885 PMCID: PMC6897339 DOI: 10.1093/rb/rbz020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/01/2019] [Accepted: 03/22/2019] [Indexed: 11/13/2022] Open
Abstract
Bone loss can occur as a result of various pathologies, traumas and injuries and poor bone healing leads to functionally debilitating condition, loss of self-sufficiency and deterioration in life quality. Given the increasing incidence of facial trauma and the emergence of new procedural techniques, advanced scaffolds are currently developed as substitutes for bone tissue engineering. In this study, we investigated the capability of a chemically cross-linked ε-caprolactone-based poly(ester-urethane-urea) (PCLU) scaffold to support bone regeneration. In vitro assays demonstrated that PCLU scaffolds could be colonized by cells through direct cell seeding and cell migration from outside to scaffold inside. Moreover, PCLU scaffolds could provide a suitable environment for stem cells proliferation in a 3D spatial arrangement, and allowed osteogenic differentiation under appropriate induction. In vivo results revealed the osteogenic properties of PCLU scaffolds through a drilled-hole femoral bone defect repair improvement in rats. Using histology and microtomography analysis, we showed that PCLU scaffolds fit well the bone cavity and were eventually entrapped between the newly formed trabeculae. Finally, no sign of inflammation or rejection was noticed. We envision that PCLU scaffolds can provide the clinicians with a substitute having appropriate characteristics for the treatment of bone defects.
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Affiliation(s)
- Géraldine Rohman
- Université Paris 13, Sorbonne Paris Cité, Tissue Engineering and Proteomics (TIP) Team, CSPBAT, UMR CNRS 7244, 74 rue Marcel Cachin, 93000 Bobigny, France
| | - Sylvie Changotade
- Université Paris 13, Sorbonne Paris Cité, Tissue Engineering and Proteomics (TIP) Team, CSPBAT, UMR CNRS 7244, 74 rue Marcel Cachin, 93000 Bobigny, France
| | - Sophie Frasca
- Département Soutien Médico-Chirurgical des Forces (SMCF), BP73, Institut de Recherche Biomédicale des Armées (IRBA), 91223 Brétigny-sur-Orge Cedex, France
| | - Salah Ramtani
- Université Paris 13, Sorbonne Paris Cité, LBPS Team, CSPBAT, UMR CNRS 7244, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France
| | - Anne Consalus
- Université Paris 13, Sorbonne Paris Cité, Tissue Engineering and Proteomics (TIP) Team, CSPBAT, UMR CNRS 7244, 74 rue Marcel Cachin, 93000 Bobigny, France
| | - Credson Langueh
- Université Paris 13, Sorbonne Paris Cité, Tissue Engineering and Proteomics (TIP) Team, CSPBAT, UMR CNRS 7244, 74 rue Marcel Cachin, 93000 Bobigny, France
| | - Jean-Marc Collombet
- Département Soutien Médico-Chirurgical des Forces (SMCF), BP73, Institut de Recherche Biomédicale des Armées (IRBA), 91223 Brétigny-sur-Orge Cedex, France
| | - Didier Lutomski
- Université Paris 13, Sorbonne Paris Cité, Tissue Engineering and Proteomics (TIP) Team, CSPBAT, UMR CNRS 7244, 74 rue Marcel Cachin, 93000 Bobigny, France
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Pillai MM, Kumar GS, Houshyar S, Padhye R, Bhattacharyya A. Effect of nanocomposite coating and biomolecule functionalization on silk fibroin based conducting 3D braided scaffolds for peripheral nerve tissue engineering. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 24:102131. [PMID: 31778808 DOI: 10.1016/j.nano.2019.102131] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 05/29/2019] [Accepted: 11/18/2019] [Indexed: 12/11/2022]
Abstract
In this work, the effects of carbon nanofiber (CNF) dispersed poly-ε-caprolactone (PCL) nanocomposite coatings and biomolecules functionalization on silk fibroin based conducting braided nerve conduits were studied for enhancing Neuro 2a cellular activities. A unique combination of biomolecules (UCM) and varying concentrations of CNF (5, 7.5, 10% w/w) were dispersed in 10% (w/v) PCL solution for coating on degummed silk threads. The coated silk threads were braided to develop the scaffold structure. As the concentration of CNF increased in the coating, the electrical impedance decreased up to 400 Ω indicating better conductivity. The tensile and dynamic mechanical property analysis showed better mechanical properties in CNF coated samples. In vitro cytocompatibility analysis proved the non-toxicity of the developed braided conduits. Cell attachment, growth and proliferation were significantly enhanced on the biomolecule functionalized nanocomposite coated silk braided structure, exhibiting their potential for peripheral nerve regeneration and recovery.
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Affiliation(s)
- Mamatha M Pillai
- Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, India
| | - G Sathish Kumar
- Functional, Innovative and Smart Textiles, PSG Institute of Advanced Studies, Coimbatore, India
| | - Shadi Houshyar
- Centre for Materials Innovation and Future Fashion, College of Design and Social Context, RMIT University, Victoria, Australia
| | - Rajiv Padhye
- Centre for Materials Innovation and Future Fashion, College of Design and Social Context, RMIT University, Victoria, Australia
| | - Amitava Bhattacharyya
- Functional, Innovative and Smart Textiles, PSG Institute of Advanced Studies, Coimbatore, India; Nanoscience and Technology, Department of Electronics and Communication Engineering, PSG College of Technology, Coimbatore, India.
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Lyu H, He Z, Chan YK, He X, Yu Y, Deng Y. Hierarchical ZnO Nanotube/Graphene Oxide Nanostructures Endow Pure Zn Implant with Synergistic Bactericidal Activity and Osteogenicity. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02986] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Lei K, Zhu Q, Wang X, Xiao H, Zheng Z. In Vitro and in Vivo Characterization of a Foam-Like Polyurethane Bone Adhesive for Promoting Bone Tissue Growth. ACS Biomater Sci Eng 2019; 5:5489-5497. [PMID: 33464068 DOI: 10.1021/acsbiomaterials.9b00918] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kun Lei
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qi Zhu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xinling Wang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haijun Xiao
- Department of Orthopedics, Central Hospital of Fengxian District, Sixth People’s Hospital of Shanghai, Shanghai 201400, China
| | - Zhen Zheng
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Mei Q, Lin L, Wang J, Cai B, Zou Q, Li J, Li Y, Zuo Y. Chemical reaction kinetics and the characteristic properties of injectable adhesives of nano-hydroxyapatite/Ag3PO4/polyurethane for bone and tooth repair. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0707-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Desai SK, Bera S, Mondal D. Multifaceted Synthesis, Properties and Applications of Polyurethanes and its Composites. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190315160000] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The primary aim of this article is to update many important synthetic pathways, properties and applications
of the polyurethanes and its composites. Polyurethanes (PUs) are a special group of versatile materials
with a great potential for different use in the development of modern, healthy and clean society, including
its multifaceted use in the fields of construction and building related work, transportation, furniture and bedding,
appliances, packaging, textiles, fibres, apparel, machinery and foundry, electronics, footwear, medical
and so forth. Over the last 8-9 decades, several synthetic strategies of the diverse polyurethanes (PUs) are
maturely designed and actively executed using various sustainable and non-sustainable methods for miscellaneous
applications in different areas. The major advantages of the modern PUs are to impose desired properties
in the materials pertinent to the field of work during their preparation by changing a different kind of monomers
and additives. Briefly, this review summarizes the overall accounts, importance, synthetic approaches,
properties, and miscellaneous applications in the desired scenario in details.
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Affiliation(s)
- Shivang K. Desai
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Smritilekha Bera
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Dhananjoy Mondal
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
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Song EH, Seong YJ, Park C, Kang IG, Kim HE, Jeong SH. Use of thioglycerol on porous polyurethane as an effective theranostic capping agent for bone tissue engineering. J Biomater Appl 2018; 33:955-966. [DOI: 10.1177/0885328218817173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Thiolated biodegradable polyurethane (TG-DPU) was synthesized using a one-pot reaction with thioglycerol adopted as a functionalized chain extender. After characterization of the chemical structure of TG-DPU using proton nuclear magnetic resonance spectroscopy, bone morphogenetic protein (BMP-2) was loaded in the TG-DPU under oxidative conditions to form disulfides between the free thiol of TG-DPU and BMP-2. The interaction between TG-DPU and BMP-2, so-called bioconjugates, was investigated using X-ray photoelectron spectroscopy analysis; the appearance of disulfide (S–S) linkage indicated the formation of a polymer/growth factor conjugate system. The covalently linked bioconjugates provided stability with minimal loss during the drug delivery with prolonged release performance in in vitro release tests. The effects of the drugs delivered by TG-DPU were also confirmed by in vitro alkaline phosphatase tests using pre-osteoblasts and in vivo bone regeneration tests. The drugs effectively induced cell differentiation and promoted mature bone recovery.
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Affiliation(s)
- Eun-Ho Song
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Yun-Jeong Seong
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Cheonil Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - In-Gu Kang
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Seol-Ha Jeong
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
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Jackson BK, Bow AJ, Kannarpady G, Biris AS, Anderson DE, Dhar M, Bourdo SE. Polyurethane/nano-hydroxyapatite composite films as osteogenic platforms. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:1426-1443. [DOI: 10.1080/09205063.2018.1464264] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Bailey K. Jackson
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Austin J. Bow
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA
| | - Ganesh Kannarpady
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Alexandru S. Biris
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - David E. Anderson
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA
| | - Madhu Dhar
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA
| | - Shawn E. Bourdo
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
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Totally biodegradable poly(trimethylene carbonate/glycolide-block-L-lactide/glycolide) copolymers: synthesis, characterization and enzyme-catalyzed degradation behavior. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.02.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Xie R, Hu J, Hoffmann O, Zhang Y, Ng F, Qin T, Guo X. Self-fitting shape memory polymer foam inducing bone regeneration: A rabbit femoral defect study. Biochim Biophys Acta Gen Subj 2018; 1862:936-945. [PMID: 29360569 DOI: 10.1016/j.bbagen.2018.01.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 02/05/2023]
Abstract
Although tissue engineering has been attracted greatly for healing of critical-sized bone defects, great efforts for improvement are still being made in scaffold design. In particular, bone regeneration would be enhanced if a scaffold precisely matches the contour of bone defects, especially if it could be implanted into the human body conveniently and safely. In this study, polyurethane/hydroxyapatite-based shape memory polymer (SMP) foam was fabricated as a scaffold substrate to facilitate bone regeneration. The minimally invasive delivery and the self-fitting behavior of the SMP foam were systematically evaluated to demonstrate its feasibility in the treatment of bone defects in vivo. Results showed that the SMP foam could be conveniently implanted into bone defects with a compact shape. Subsequently, it self-matched the boundary of bone defects upon shape-recovery activation in vivo. Micro-computed tomography determined that bone ingrowth initiated at the periphery of the SMP foam with a constant decrease towards the inside. Successful vascularization and bone remodeling were also demonstrated by histological analysis. Thus, our results indicate that the SMP foam demonstrated great potential for bone regeneration.
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Affiliation(s)
- Ruiqi Xie
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Jinlian Hu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; Intelligent Biomedical Materials Center, Shenzhen Base of The Hong Kong Polytechnic University, Shenzhen, China.
| | - Oskar Hoffmann
- Institute of Pharmacology and Toxicology, University of Vienna, Vienna, Austria
| | - Yuanchi Zhang
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Frankie Ng
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Tingwu Qin
- Institute of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xia Guo
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
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Biocompatible waterborne polyurethane-urea elastomer as intelligent anticancer drug release matrix: A sustained drug release study. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.08.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Moghanizadeh-Ashkezari M, Shokrollahi P, Zandi M, Shokrolahi F. Polyurethanes with separately tunable biodegradation behavior and mechanical properties for tissue engineering. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4160] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Parvin Shokrollahi
- Department of Biomaterials, Faculty of Science; Iran Polymer and Petrochemical Institute; Tehran 14977-13115 Iran
| | - Mojgan Zandi
- Department of Biomaterials, Faculty of Science; Iran Polymer and Petrochemical Institute; Tehran 14977-13115 Iran
| | - Fatemeh Shokrolahi
- Department of Biomaterials, Faculty of Science; Iran Polymer and Petrochemical Institute; Tehran 14977-13115 Iran
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Kucińska-Lipka J, Gubanska I, Korchynskyi O, Malysheva K, Kostrzewa M, Włodarczyk D, Karczewski J, Janik H. The Influence of Calcium Glycerophosphate (GPCa) Modifier on Physicochemical, Mechanical, and Biological Performance of Polyurethanes Applicable as Biomaterials for Bone Tissue Scaffolds Fabrication. Polymers (Basel) 2017; 9:polym9080329. [PMID: 30971004 PMCID: PMC6418683 DOI: 10.3390/polym9080329] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/13/2017] [Accepted: 07/28/2017] [Indexed: 12/26/2022] Open
Abstract
In this paper we describe the synthesis of poly(ester ether urethane)s (PEEURs) by using selected raw materials to reach a biocompatible polyurethane (PU) for biomedical applications. PEEURs were synthesized by using aliphatic 1,6-hexamethylene diisocyanate (HDI), poly(ethylene glycol) (PEG), α,ω-dihydroxy(ethylene-butylene adipate) (Polios), 1,4-butanediol (BDO) as a chain extender and calcium glycerolphosphate salt (GPCa) as a modifier used to stimulate bone tissue regeneration. The obtained unmodified (PURs) and modified with GPCa (PURs-M) PEEURs were studied by various techniques. It was confirmed that urethane prepolymer reacts with GPCa modifier. Further analysis of the obtained PURs and PURs-M by Fourier transform infrared (FTIR) and Raman spectroscopy revealed the chemical composition typical for PUs by the confirmed presence of urethane bonds. Moreover, the FTIR and Raman spectra indicated that GPCa was incorporated into the main PU chain at least at one-side. The scanning electron microscopy (SEM) analysis of the PURs-M surface was in good agreement with the FTIR and Raman analysis due to the fact that inclusions were observed only at 20% of its surface, which were related to the non-reacted GPCa enclosed in the PUR matrix as filler. Further studies of hydrophilicity, mechanical properties, biocompatibility, short term-interactions, and calcification study lead to the final conclusion that the obtained PURs-M may by suitable candidate material for further scaffold fabrication. Scaffolds were prepared by the solvent casting/particulate leaching technique (SC/PL) combined with thermally-induced phase separation (TIPS). Such porous scaffolds had satisfactory pore sizes (36–100 μm) and porosity (77–82%) so as to be considered as suitable templates for bone tissue regeneration.
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Affiliation(s)
- Justyna Kucińska-Lipka
- Department of Polymer Technology, Faculty of Chemistry, Gdank University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.
| | - Iga Gubanska
- Department of Polymer Technology, Faculty of Chemistry, Gdank University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.
| | - Olexandr Korchynskyi
- Institute of Cell Biology, National Academy Science of Ukraine, 14/16 Drahomanov Str., 79005 Lviv, Ukraine.
- Centre for Innovative Research in Medical and Natural Sciences, Rzeszow University and Medical Faculty, 35-959 Rzeszow, Poland.
| | - Khrystyna Malysheva
- Institute of Cell Biology, National Academy Science of Ukraine, 14/16 Drahomanov Str., 79005 Lviv, Ukraine.
| | - Marcin Kostrzewa
- Department of Organic Materials Technology, Technical University of Radom, 26-600 Radom, Poland.
| | - Damian Włodarczyk
- Institute of Physics, Polish Academy of Science, Division of Physics and Technology of Wide-Band-Gap Semiconductor Nanostructures, Al. Lotnikow 32/46, 02-668 Warsaw, Poland.
| | - Jakub Karczewski
- Gdansk University of Technology, Faculty of Applied Physics and Mathematics, Narutowicza 11/12, 80-233 Gdansk, Poland.
| | - Helena Janik
- Department of Polymer Technology, Faculty of Chemistry, Gdank University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.
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Marzec M, Kucińska-Lipka J, Kalaszczyńska I, Janik H. Development of polyurethanes for bone repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:736-747. [PMID: 28866223 DOI: 10.1016/j.msec.2017.07.047] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 01/23/2017] [Accepted: 07/29/2017] [Indexed: 12/12/2022]
Abstract
The purpose of this paper is to review recent developments on polyurethanes aimed at the design, synthesis, modifications, and biological properties in the field of bone tissue engineering. Different polyurethane systems are presented and discussed in terms of biodegradation, biocompatibility and bioactivity. A comprehensive discussion is provided of the influence of hard to soft segments ratio, catalysts, stiffness and hydrophilicity of polyurethanes. Interaction with various cells, behavior in vivo and current strategies in enhancing bioactivity of polyurethanes are described. The discussion on the incorporation of biomolecules and growth factors, surface modifications, and obtaining polyurethane-ceramics composites strategies is held. The main emphasis is placed on the progress of polyurethane applications in bone regeneration, including bone void fillers, shape memory scaffolds, and drug carrier.
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Affiliation(s)
- M Marzec
- Department of Polymer Technology, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - J Kucińska-Lipka
- Department of Polymer Technology, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.
| | - I Kalaszczyńska
- Department of Histology and Embryology, Center for Biostructure Research, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland; Centre for Preclinical Research and Technology, Banacha 1b, 02-097 Warsaw, Poland
| | - H Janik
- Department of Polymer Technology, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
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20
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Lu S, McEnery MAP, Rogers BR, Wenke JC, Shimko D, Guelcher SA. Resorbable Nanocomposites with Bone-Like Strength and Enhanced Cellular Activity. J Mater Chem B 2017; 5:4198-4206. [PMID: 30101031 PMCID: PMC6086367 DOI: 10.1039/c7tb00657h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bone cements for treatment of fractures at weight-bearing sites are subjected to dynamic physiological loading from daily activities. An ideal bone cement rapidly sets after injection, exhibits bone-like strength, stimulates osteogenic differentiation of endogenous cells, and resorbs at a rate aligned with patient biology. However, currently available materials fall short of these targeted properties. Nanocrystalline hydroxyapatite (nHA) enhances osteogenic differentiation, new bone formation, and osteoclast differentiation activity compared to amorphous or micron-scale crystalline hydroxyapatite. However, the brittle mechanical properties of nHA precludes its use in treatment of weight-bearing bone defects. In this study, we report settable nHA-poly(ester urethane) (PEUR) nanocomposites synthesized from nHA, lysine triisocyanate (LTI), and poly(caprolactone) triol via a solvent-free process. The nanocomposites are easily mixed and injected using a double-barrel syringe, exhibit mechanical properties exceeding those of conventional bone cements, enhance mineralization of osteoprogenitor cells in vitro, and undergo osteoclast-mediated degradation in vitro. This combination of properties cannot be achieved using other technologies, which underscores the potential of nHA-PEUR nanocomposites as a new approach for promoting bone healing at weight-bearing sites.
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Affiliation(s)
- S Lu
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - M A P McEnery
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - B R Rogers
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - J C Wenke
- Orthopaedic Task Area, U.S. Army Institute of Surgical Research, San Antonio, TX, USA
| | - D Shimko
- Medtronic Spine and Biologics, Memphis, TN, 38132, USA
| | - S A Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, 37235, USA
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21
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Shoaib M, Bahadur A, Rahman MSU, Iqbal S, Arshad MI, Tahir MA, Mahmood T. Sustained drug delivery of doxorubicin as a function of pH, releasing media, and NCO contents in polyurethane urea elastomers. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.04.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Stynes GD, Gengenbach TR, Kiroff GK, Morrison WA, Kirkland MA. Thiol surface functionalization via continuous phase plasma polymerization of allyl mercaptan, with subsequent maleimide-linked conjugation of collagen. J Biomed Mater Res A 2017; 105:1940-1948. [DOI: 10.1002/jbm.a.36064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 02/23/2017] [Accepted: 03/07/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Gil D. Stynes
- Department of Surgery; St Vincent's Hospital, University of Melbourne; Victoria Australia
- Barwon Biomedical Research, University Hospital Geelong; Victoria Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO); Victoria Australia
- Institute for Frontier Materials, Deakin University; Victoria Australia
| | - Thomas R. Gengenbach
- Commonwealth Scientific and Industrial Research Organisation (CSIRO); Victoria Australia
| | - George K. Kiroff
- Queen Elizabeth Hospital, The University of Adelaide; South Australia Australia
| | - Wayne A. Morrison
- Department of Surgery; St Vincent's Hospital, University of Melbourne; Victoria Australia
| | - Mark A. Kirkland
- Institute for Frontier Materials, Deakin University; Victoria Australia
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Fu S, Yang G, Wang J, Wang X, Cheng X, Tang R. Acid-degradable poly(ortho ester urethanes) copolymers for potential drug carriers: Preparation, characterization, in vitro and in vivo evaluation. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Levofloxacin loaded mesoporous silica microspheres/nano-hydroxyapatite/polyurethane composite scaffold for the treatment of chronic osteomyelitis with bone defects. Sci Rep 2017; 7:41808. [PMID: 28150731 PMCID: PMC5288772 DOI: 10.1038/srep41808] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 12/30/2016] [Indexed: 02/07/2023] Open
Abstract
Chronic osteomyelitis is a prolonged persistent disease accompanied by bone destruction and sequestrum formation, it is very difficult to treat. Antibiotic loaded polymethyl methacrylate (PMMA) has been used in clinical. However, when PMMA was implanted in the body, the deficiencies is that it is non-biodegradable and a second operation is needed. Here, we synthesize a novel levofloxacin loaded mesoporous silica microspheres/nano-hydroxyapatite/polyurethane composite scaffolds, and evaluated the therapeutic effect in treating chronic osteomyelitis with bone defects in rabbit model compared with bulk PMMA. X-ray, Micro CT, gross pathology as well as immunohistochemical staining were performed at predesignated time points (1, 3, 6 and 12 weeks). Our results demonstrated that the efficiency of mesoporous silica microspheres/nano-hydroxyapatite/polyurethane composite scaffolds loaded with 5 mg levofloxacin was much better at treating bone defects than the other groups. This novel synthetic scaffold may provide a solution for the treatment of chronic osteomyelitis.
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25
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Brannigan RP, Dove AP. Synthesis, properties and biomedical applications of hydrolytically degradable materials based on aliphatic polyesters and polycarbonates. Biomater Sci 2016; 5:9-21. [PMID: 27840864 DOI: 10.1039/c6bm00584e] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polyester-based polymers represent excellent candidates in synthetic biodegradable and bioabsorbable materials for medical applications owing to their tailorable properties. The use of synthetic polyesters as biomaterials offers a unique control of morphology, mechanical properties and degradation profile through monomer selection, polymer composition (i.e. copolymer vs. homopolymer, stereocomplexation etc.) and molecular weight. Within this review, the synthetic routes, degradation modes and application of aliphatic polyester- and polycarbonate-based biomaterials are discussed.
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Affiliation(s)
| | - Andrew P Dove
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
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26
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McEnery MAP, Lu S, Gupta MK, Zienkiewicz KJ, Wenke JC, Kalpakci KN, Shimko D, Duvall CL, Guelcher SA. Oxidatively Degradable Poly(thioketal urethane)/Ceramic Composite Bone Cements with Bone-Like Strength. RSC Adv 2016; 6:109414-109424. [PMID: 27895899 PMCID: PMC5123593 DOI: 10.1039/c6ra24642g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Synthetic bone cements are commonly used in orthopaedic procedures to aid in bone regeneration following trauma or disease. Polymeric cements like PMMA provide the mechanical strength necessary for orthopaedic applications, but they are not resorbable and do not integrate with host bone. Ceramic cements have a chemical composition similar to that of bone, but their brittle mechanical properties limit their use in weight-bearing applications. In this study, we designed oxidatively degradable, polymeric bone cements with mechanical properties suitable for bone tissue engineering applications. We synthesized a novel thioketal (TK) diol, which was crosslinked with a lysine triisocyanate (LTI) prepolymer to create hydrolytically stable poly(thioketal urethane)s (PTKUR) that degrade in the oxidative environment associated with bone defects. PTKUR films were hydrolytically stable for up to 6 months, but degraded rapidly (<1 week) under simulated oxidative conditions in vitro. When combined with ceramic micro- or nanoparticles, PTKUR cements exhibited working times comparable to calcium phosphate cements and strengths exceeding those of trabecular bone. PTKUR/ceramic composite cements supported appositional bone growth and integrated with host bone near the bone-cement interface at 6 and 12 weeks post-implantation in rabbit femoral condyle plug defects. Histological evidence of osteoclast-mediated resorption of the cements was observed at 6 and 12 weeks. These findings demonstrate that a PTKUR bone cement with bone-like strength can be selectively resorbed by cells involved in bone remodeling, and thus represent an important initial step toward the development of resorbable bone cements for weight-bearing applications.
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Affiliation(s)
- Madison A P McEnery
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Sichang Lu
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | - Mukesh K Gupta
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Katarzyna J Zienkiewicz
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | - Joseph C Wenke
- U.S. Army Institute of Surgical Research, San Antonio, TX, USA
| | | | | | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Scott A Guelcher
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA; Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA; Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN
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27
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Patton AJ, Poole-Warren LA, Green RA. Mechanisms for Imparting Conductivity to Nonconductive Polymeric Biomaterials. Macromol Biosci 2016; 16:1103-21. [DOI: 10.1002/mabi.201600057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 03/31/2016] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Rylie A. Green
- Graduate School of Biomedical Engineering; University of New South Wales
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28
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Alishiri M, Shojaei A, Abdekhodaie MJ. Biodegradable polyurethane acrylate/HEMA-grafted nanodiamond composites with bone regenerative potential applications: structure, mechanical properties and biocompatibility. RSC Adv 2016. [DOI: 10.1039/c5ra19669h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
It was found that ND-HEMA enhanced considerably the mechanical properties of biocompatible APUA at low concentrations, i.e. 1 wt%, while it retained the biocompatibility of the PAUA.
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Affiliation(s)
- Maryam Alishiri
- Department of Chemical and Petroleum Engineering
- Sharif University of Technology
- Tehran
- Iran
| | - Akbar Shojaei
- Department of Chemical and Petroleum Engineering
- Sharif University of Technology
- Tehran
- Iran
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29
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Adolph EJ, Guo R, Pollins AC, Zienkiewicz K, Cardwell N, Davidson JM, Guelcher SA, Nanney LB. Injected biodegradable polyurethane scaffolds support tissue infiltration and delay wound contraction in a porcine excisional model. J Biomed Mater Res B Appl Biomater 2015; 104:1679-1690. [PMID: 26343927 DOI: 10.1002/jbm.b.33515] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/03/2015] [Accepted: 08/23/2015] [Indexed: 11/10/2022]
Abstract
The filling of wound cavities with new tissue is a challenge. We previously reported on the physical properties and wound healing kinetics of prefabricated, gas-blown polyurethane (PUR) scaffolds in rat and porcine excisional wounds. To address the capability of this material to fill complex wound cavities, this study examined the in vitro and in vivo reparative characteristics of injected PUR scaffolds employing a sucrose porogen. Using the porcine excisional wound model, we compared reparative outcomes to both preformed and injected scaffolds as well as untreated wounds at 9, 13, and 30 days after scaffold placement. Both injected and preformed scaffolds delayed wound contraction by 19% at 9 days and 12% at 13 days compared to nontreated wounds. This stenting effect proved transient since both formulations degraded by day 30. Both types of scaffolds significantly inhibited the undesirable alignment of collagen and fibroblasts through day 13. Injected scaffolds were highly compatible with sentinel cellular events of normal wound repair cell proliferation, apoptosis, and blood vessel density. The present study provides further evidence that either injected or preformed PUR scaffolds facilitate wound healing, support tissue infiltration and matrix production, delay wound contraction, and reduce scarring in a clinically relevant animal model, which underscores their potential utility as a void-filling platform for large cutaneous defects. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1679-1690, 2016.
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Affiliation(s)
- Elizabeth J Adolph
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee
| | - Ruijing Guo
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee
| | - Alonda C Pollins
- Department of Plastic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Katarzyna Zienkiewicz
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee
| | - Nancy Cardwell
- Department of Plastic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jeffrey M Davidson
- Research Service, VA Tennessee Valley Healthcare System, Nashville, Tennessee.,Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Scott A Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee.,Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee.,Center for Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Lillian B Nanney
- Department of Plastic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee. .,Department of Cell & Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee.
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30
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Harmata AJ, Uppuganti S, Granke M, Guelcher SA, Nyman JS. Compressive fatigue and fracture toughness behavior of injectable, settable bone cements. J Mech Behav Biomed Mater 2015; 51:345-55. [PMID: 26282077 DOI: 10.1016/j.jmbbm.2015.07.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 07/23/2015] [Accepted: 07/27/2015] [Indexed: 01/09/2023]
Abstract
Bone grafts used to repair weight-bearing tibial plateau fractures often experience cyclic loading, and there is a need for bone graft substitutes that prevent failure of fixation and subsequent morbidity. However, the specific mechanical properties required for resorbable grafts to optimize structural compatibility with native bone have yet to be established. While quasi-static tests are utilized to assess weight-bearing ability, compressive strength alone is a poor indicator of in vivo performance. In the present study, we investigated the effects of interfacial bonding on material properties under conditions that re-capitulate the cyclic loading associated with weight-bearing fractures. Dynamic compressive fatigue properties of polyurethane (PUR) composites made with either unmodified (U-) or polycaprolactone surface-modified (PCL-) 45S5 bioactive glass (BG) particles were compared to a commercially available calcium sulfate and phosphate-based (CaS/P) bone cement at physiologically relevant stresses (5-30 MPa). Fatigue resistance of PCL-BG/polymer composite was superior to that of the U-BG/polymer composite and the CaS/P cement at higher stress levels for each of the fatigue failure criteria, related to modulus, creep, and maximum displacement, and was comparable to human trabecular bone. Steady state creep and damage accumulation occurred during the fatigue life of the PCL-BG/polymer and CaS/P cement, whereas creep of U-BG/polymer primarily occurred at a low number of loading cycles. From crack propagation testing, fracture toughness or resistance to crack growth was significantly higher for the PCL-BG composite than for the other materials. Finally, the fatigue and fracture toughness properties were intermediate between those of trabecular and cortical bone. These findings highlight the potential of PCL-BG/polyurethane composites as weight-bearing bone grafts.
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Affiliation(s)
- Andrew J Harmata
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA; Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Sasidhar Uppuganti
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Mathilde Granke
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Scott A Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA; Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.
| | - Jeffry S Nyman
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA; Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37212, USA.
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31
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Gupta A, Kukkar N, Sharif K, Main BJ, Albers CE, III SFEA. Bone graft substitutes for spine fusion: A brief review. World J Orthop 2015; 6:449-456. [PMID: 26191491 PMCID: PMC4501930 DOI: 10.5312/wjo.v6.i6.449] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/17/2015] [Accepted: 05/18/2015] [Indexed: 02/06/2023] Open
Abstract
Bone graft substitutes are widely used in the field of orthopedics and are extensively used to promote vertebral fusion. Fusion is the most common technique in spine surgery and is used to treat morbidities and relieve discomfort. Allograft and autograft bone substitutes are currently the most commonly used bone grafts to promote fusion. These approaches pose limitations and present complications to the patient. Numerous alternative bone graft substitutes are on the market or have been developed and proposed for application. These options have attempted to promote spine fusion by enhancing osteogenic properties. In this review, we reviewed biology of spine fusion and the current advances in biomedical materials and biological strategies for application in surgical spine fusion. Our findings illustrate that, while many bone graft substitutes perform well as bone graft extenders, only osteoinductive proteins (recombinant bone morphogenetic proteins-2 and osteogenic protein-1) provide evidence for use as both bone enhancers and bone substitutes for specific types of spinal fusion. Tissue engineered hydrogels, synthetic polymer composites and viral based gene therapy also holds the potential to be used for spine fusion in future, though warrants further investigation to be used in clinical practice.
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33
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Rottmar M, Richter M, Mäder X, Grieder K, Nuss K, Karol A, von Rechenberg B, Zimmermann E, Buser S, Dobmann A, Blume J, Bruinink A. In vitro investigations of a novel wound dressing concept based on biodegradable polyurethane. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2015; 16:034606. [PMID: 27877793 PMCID: PMC5099830 DOI: 10.1088/1468-6996/16/3/034606] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 03/15/2015] [Accepted: 03/15/2015] [Indexed: 06/06/2023]
Abstract
Non-healing and partially healing wounds are an important problem not only for the patient but also for the public health care system. Current treatment solutions are far from optimal regarding the chosen material properties as well as price and source. Biodegradable polyurethane (PUR) scaffolds have shown great promise for in vivo tissue engineering approaches, but accomplishment of the goal of scaffold degradation and new tissue formation developing in parallel has not been observed so far in skin wound repair. In this study, the mechanical properties and degradation behavior as well as the biocompatibility of a low-cost synthetic, pathogen-free, biocompatible and biodegradable extracellular matrix mimicking a PUR scaffold was evaluated in vitro. The novel PUR scaffolds were found to meet all the requirements for optimal scaffolds and wound dressings. These three-dimensional scaffolds are soft, highly porous, and form-stable and can be easily cut into any shape desired. All the material formulations investigated were found to be nontoxic. One formulation was able to be defined that supported both good fibroblast cell attachment and cell proliferation to colonize the scaffold. Tunable biodegradation velocity of the materials could be observed, and the results additionally indicated that calcium plays a crucial role in PUR degradation. Our results suggest that the PUR materials evaluated in this study are promising candidates for next-generation wound treatment systems and support the concept of using foam scaffolds for improved in vivo tissue engineering and regeneration.
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Affiliation(s)
- Markus Rottmar
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstr. 5, CH-9014 St. Gallen, Switzerland
| | - Michael Richter
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstr. 5, CH-9014 St. Gallen, Switzerland
| | - Xenia Mäder
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstr. 5, CH-9014 St. Gallen, Switzerland
| | - Kathrin Grieder
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstr. 5, CH-9014 St. Gallen, Switzerland
| | - Katja Nuss
- MSRU Vetsuisse Faculty ZH, University of Zurich, Winterthurerstr. 260, CH-8057 Zurich, Switzerland
| | - Agnieszka Karol
- MSRU Vetsuisse Faculty ZH, University of Zurich, Winterthurerstr. 260, CH-8057 Zurich, Switzerland
| | - Brigitte von Rechenberg
- MSRU Vetsuisse Faculty ZH, University of Zurich, Winterthurerstr. 260, CH-8057 Zurich, Switzerland
- CABMM, University of Zurich, Winterthurerstr. 260, CH-8057 Zurich, Switzerland
| | | | - Stephan Buser
- nolax AG, Eichenstr. 12, CH-6203 Sempach Station, Switzerland
| | - Andreas Dobmann
- nolax AG, Eichenstr. 12, CH-6203 Sempach Station, Switzerland
| | - Jessica Blume
- nolax AG, Eichenstr. 12, CH-6203 Sempach Station, Switzerland
| | - Arie Bruinink
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstr. 5, CH-9014 St. Gallen, Switzerland
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Sgarioto M, Adhikari R, Gunatillake PA, Moore T, Patterson J, Nagel MD, Malherbe F. High Modulus Biodegradable Polyurethanes for Vascular Stents: Evaluation of Accelerated in vitro Degradation and Cell Viability of Degradation Products. Front Bioeng Biotechnol 2015; 3:52. [PMID: 26000274 PMCID: PMC4422008 DOI: 10.3389/fbioe.2015.00052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 03/27/2015] [Indexed: 01/13/2023] Open
Abstract
We have recently reported the mechanical properties and hydrolytic degradation behavior of a series of NovoSorb™ biodegradable polyurethanes (PUs) prepared by varying the hard segment (HS) weight percentage from 60 to 100. In this study, the in vitro degradation behavior of these PUs with and without extracellular matrix (ECM) coating was investigated under accelerated hydrolytic degradation (phosphate buffer saline; PBS/70°C) conditions. The mass loss at different time intervals and the effect of aqueous degradation products on the viability and growth of human umbilical vein endothelial cells (HUVEC) were examined. The results showed that PUs with HS 80% and below completely disintegrated leaving no visual polymer residue at 18 weeks and the degradation medium turned acidic due to the accumulation of products from the soft segment (SS) degradation. As expected the PU with the lowest HS was the fastest to degrade. The accumulated degradation products, when tested undiluted, showed viability of about 40% for HUVEC cells. However, the viability was over 80% when the solution was diluted to 50% and below. The growth of HUVEC cells is similar to but not identical to that observed with tissue culture polystyrene standard (TCPS). The results from this in vitro study suggested that the PUs in the series degraded primarily due to the SS degradation and the cell viability of the accumulated acidic degradation products showed poor viability to HUVEC cells when tested undiluted, however particles released to the degradation medium showed cell viability over 80%.
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Affiliation(s)
- Melissa Sgarioto
- Faculty of Life and Social Sciences, Swinburne University of Technology , Hawthorn, VIC , Australia ; UMR CNRS 7338 Biomécanique et Bioingénierie, Centre de Recherches de Royallieu, Université de Technologie de Compiègne , Compiègne , France
| | - Raju Adhikari
- CSIRO Manufacturing Flagship , Clayton, VIC , Australia
| | | | - Tim Moore
- PolyNovo Biomaterials Pty Ltd. , Port Melbourne, VIC , Australia
| | - John Patterson
- Faculty of Life and Social Sciences, Swinburne University of Technology , Hawthorn, VIC , Australia
| | - Marie-Danielle Nagel
- UMR CNRS 7338 Biomécanique et Bioingénierie, Centre de Recherches de Royallieu, Université de Technologie de Compiègne , Compiègne , France
| | - François Malherbe
- Faculty of Life and Social Sciences, Swinburne University of Technology , Hawthorn, VIC , Australia
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35
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Prieto EM, Talley AD, Gould NR, Zienkiewicz KJ, Drapeau SJ, Kalpakci KN, Guelcher SA. Effects of particle size and porosity on in vivo remodeling of settable allograft bone/polymer composites. J Biomed Mater Res B Appl Biomater 2015; 103:1641-51. [PMID: 25581686 DOI: 10.1002/jbm.b.33349] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 11/11/2014] [Accepted: 11/18/2014] [Indexed: 11/12/2022]
Abstract
Established clinical approaches to treat bone voids include the implantation of autograft or allograft bone, ceramics, and other bone void fillers (BVFs). Composites prepared from lysine-derived polyurethanes and allograft bone can be injected as a reactive liquid and set to yield BVFs with mechanical strength comparable to trabecular bone. In this study, we investigated the effects of porosity, allograft particle size, and matrix mineralization on remodeling of injectable and settable allograft/polymer composites in a rabbit femoral condyle plug defect model. Both low viscosity and high viscosity grafts incorporating small (<105 μm) particles only partially healed at 12 weeks, and the addition of 10% demineralized bone matrix did not enhance healing. In contrast, composite grafts with large (105-500 μm) allograft particles healed at 12 weeks postimplantation, as evidenced by radial μCT and histomorphometric analysis. This study highlights particle size and surface connectivity as influential parameters regulating the remodeling of composite bone scaffolds.
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Affiliation(s)
- Edna M Prieto
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee.,Center for Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Anne D Talley
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee.,Center for Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Nicholas R Gould
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee
| | - Katarzyna J Zienkiewicz
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee
| | | | | | - Scott A Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee.,Center for Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee.,Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
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36
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Sullad AG, Manjeshwar LS, Aminabhavi TM. Blend microspheres of chitosan and polyurethane for controlled release of water-soluble antihypertensitive drugs. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1271-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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37
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Tetteh G, Khan A, Delaine-Smith R, Reilly G, Rehman I. Electrospun polyurethane/hydroxyapatite bioactive Scaffolds for bone tissue engineering: The role of solvent and hydroxyapatite particles. J Mech Behav Biomed Mater 2014; 39:95-110. [DOI: 10.1016/j.jmbbm.2014.06.019] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 06/25/2014] [Accepted: 06/30/2014] [Indexed: 10/25/2022]
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38
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Pawlikowski M. Non-linear constitutive model for the oligocarbonate polyurethane material. CHINESE JOURNAL OF POLYMER SCIENCE 2014. [DOI: 10.1007/s10118-014-1549-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Sariibrahimoglu K, Yang W, Leeuwenburgh SCG, Yang F, Wolke JGC, Zuo Y, Li Y, Jansen JA. Development of porous polyurethane/strontium-substituted hydroxyapatite composites for bone regeneration. J Biomed Mater Res A 2014; 103:1930-9. [DOI: 10.1002/jbm.a.35327] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/12/2014] [Accepted: 08/14/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Kemal Sariibrahimoglu
- Department of Biomaterials; Radboud University Medical Center; PO Box 9101 6500 HB Nijmegen The Netherlands
| | - Wanxun Yang
- Department of Biomaterials; Radboud University Medical Center; PO Box 9101 6500 HB Nijmegen The Netherlands
| | - Sander C. G. Leeuwenburgh
- Department of Biomaterials; Radboud University Medical Center; PO Box 9101 6500 HB Nijmegen The Netherlands
| | - Fang Yang
- Department of Biomaterials; Radboud University Medical Center; PO Box 9101 6500 HB Nijmegen The Netherlands
| | - Joop G. C. Wolke
- Department of Biomaterials; Radboud University Medical Center; PO Box 9101 6500 HB Nijmegen The Netherlands
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical and Testing Center; Sichuan University; Chengdu 610064 China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center; Sichuan University; Chengdu 610064 China
| | - John A. Jansen
- Department of Biomaterials; Radboud University Medical Center; PO Box 9101 6500 HB Nijmegen The Netherlands
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40
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Das B, Chattopadhyay P, Upadhyay A, Gupta K, Mandal M, Karak N. Biophysico-chemical interfacial attributes of Fe3O4decorated MWCNT nanohybrid/bio-based hyperbranched polyurethane nanocomposite: an antibacterial wound healing material with controlled drug release potential. NEW J CHEM 2014. [DOI: 10.1039/c4nj00732h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Prieto EM, Page JM, Harmata AJ, Guelcher SA. Injectable foams for regenerative medicine. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 6:136-54. [PMID: 24127230 PMCID: PMC3945605 DOI: 10.1002/wnan.1248] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 08/13/2013] [Accepted: 09/17/2013] [Indexed: 12/21/2022]
Abstract
The design of injectable biomaterials has attracted considerable attention in recent years. Many injectable biomaterials, such as hydrogels and calcium phosphate cements (CPCs), have nanoscale pores that limit the rate of cellular migration and proliferation. While introduction of macroporosity has been suggested to increase cellular infiltration and tissue healing, many conventional methods for generating macropores often require harsh processing conditions that preclude their use in injectable foams. In recent years, processes such as porogen leaching, gas foaming, and emulsion-templating have been adapted to generate macroporosity in injectable CPCs, hydrogels, and hydrophobic polymers. While some of the more mature injectable foam technologies have been evaluated in clinical trials, there are challenges remaining to be addressed, such as the biocompatibility and ultimate fate of the sacrificial phase used to generate pores within the foam after it sets in situ. Furthermore, while implantable scaffolds can be washed extensively to remove undesirable impurities, all of the components required to synthesize injectable foams must be injected into the defect. Thus, every compound in the foam must be biocompatible and noncytotoxic at the concentrations utilized. As future research addresses these critical challenges, injectable macroporous foams are anticipated to have an increasingly significant impact on improving patient outcomes for a number of clinical procedures.
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Affiliation(s)
- Edna M Prieto
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
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42
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Cetina-Diaz SM, Chan-Chan LH, Vargas-Coronado RF, Cervantes-Uc JM, Quintana-Owen P, Paakinaho K, Kellomaki M, Di Silvio L, Deb S, Cauich-Rodríguez JV. Physicochemical characterization of segmented polyurethanes prepared with glutamine or ascorbic acid as chain extenders and their hydroxyapatite composites. J Mater Chem B 2014; 2:1966-1976. [DOI: 10.1039/c3tb21500h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Segmented polyurethanes with glutamine or ascorbic acid as chain extenders and their hydroxyapatite composites for bone tissue regeneration.
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Affiliation(s)
| | - L. H. Chan-Chan
- Centro de Investigación Científica de Yucatán A.C
- Mérida, Mexico
| | | | | | - P. Quintana-Owen
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
- Mérida, Mexico
| | - K. Paakinaho
- Department of Electrical and Communications Engineering and BioMediTech
- Tampere University of Technology
- Tampere, Finland
| | - M. Kellomaki
- Department of Electrical and Communications Engineering and BioMediTech
- Tampere University of Technology
- Tampere, Finland
| | - L. Di Silvio
- King's College London Dental Institute
- London SEI 9 RT, UK
| | - S. Deb
- King's College London Dental Institute
- London SEI 9 RT, UK
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43
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Fang J, Yin A, Wu C, Li D, Wu T, He L, Han F, Mo X. Synthesis and characterization of biodegradable poly(ester-urethane)urea for nerve tissue engineering. J Control Release 2013. [DOI: 10.1016/j.jconrel.2013.08.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Synthesis and characterization of novel elastomeric poly(D,L-lactide urethane) maleate composites for bone tissue engineering. Eur Polym J 2013; 49:3337-3349. [PMID: 24817764 DOI: 10.1016/j.eurpolymj.2013.07.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Here, we report the synthesis and characterization of a novel 4-arm poly(lactic acid urethane)-maleate (4PLAUMA) elastomer and its composites with nano-hydroxyapatite (nHA) as potential weight-bearing composite. The 4PLAUMA/nHA ratios of the composites were 1:3, 2:5, 1:2 and 1:1. FTIR and NMR characterization showed urethane and maleate units integrated into the PLA matrix. Energy dispersion and Auger electron spectroscopy confirmed homogeneous distribution of nHA in the polymer matrix. Maximum moduli and strength of the composites of 4PLAUMA/nHA, respectively, are 1973.31 ± 298.53 MPa and 78.10 ± 3.82 MPa for compression, 3630.46 ± 528.32 MPa and 6.23 ± 1.44 MPa for tension, 1810.42 ± 86.10 MPa and 13.00 ± 0.72 for bending, and 282.46 ± 24.91 MPa and 5.20 ± 0.85 MPa for torsion. The maximum tensile strains of the polymer and composites are in the range of 5% to 93%, and their maximum torsional strains vary from 0.26 to 0.90. The composites exhibited very slow degradation rates in aqueous solution, from approximately 50% mass remaining for the pure polymer to 75% mass remaining for composites with high nHA contents, after a period of 8 weeks. Increase in ceramic content increased mechanical properties, but decreased maximum strain, degradation rate, and swelling of the composites. Human bone marrow stem cells and human endothelial cells adhered and proliferated on 4PLAUMA films and degradation products of the composites showed little-to-no toxicity. These results demonstrate that novel 4-arm poly(lactic acid urethane)-maleate (4PLAUMA) elastomer and its nHA composites may have potential applications in regenerative medicine.
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45
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The degradation and biocompatibility of waterborne biodegradable polyurethanes for tissue engineering. CHINESE JOURNAL OF POLYMER SCIENCE 2013. [DOI: 10.1007/s10118-013-1315-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Rodríguez-Évora M, Delgado A, Reyes R, Hernández-Daranas A, Soriano I, San Román J, Evora C. Osteogenic effect of local, long versus short term BMP-2 delivery from a novel SPU-PLGA-βTCP concentric system in a critical size defect in rats. Eur J Pharm Sci 2013; 49:873-84. [PMID: 23797057 DOI: 10.1016/j.ejps.2013.06.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 06/04/2013] [Accepted: 06/06/2013] [Indexed: 10/26/2022]
Abstract
A concentric delivery system, composed of the three biomaterials SPU, PLGA, and βTCP (segmented polyurethane, poly[lactic-co-glycolic acid], and β-tricalcium phosphate) was fabricated as an external, porous ring of βTCP with a pasty core of a new SPU, mixed with PLGA microspheres. The regenerative effects of two distinct doses of either immediately available or continuously released rhBMP-2 were evaluated in an 8mm, critical calvaria defect in rats. Protein dose and release kinetics affected material resorption rates and the progression of the regeneration process. Groups treated with the empty system alone or in conjunction with free rhBMP-2 did not respond. By contrast, after 12 weeks, approximately 20% and 60% of the defects implanted with systems loaded with 1.6 μg and 6.5 μg rhBMP-2, respectively were healed, with all the growth factor being released in the course of 6 weeks. The NMR, FTIR, GPC, DSC, and histological analyses showed that PLGA microsphere degradation occurred independently of the regenerative process. However, the resorption rate of the SPU and βTCP did depend on the regeneration process, which was governed by dose and release rate of rhBMP-2. Furthermore, the biocompatibility and high capacity of adaptation to the defect convert the herein proposed, new SPU polymer into a potential material for applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- M Rodríguez-Évora
- Department of Chemical Engineering and Pharmaceutical Technology, University of La Laguna, 38200 La Laguna, Spain
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47
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Cherng JY, Hou TY, Shih MF, Talsma H, Hennink WE. Polyurethane-based drug delivery systems. Int J Pharm 2013; 450:145-62. [DOI: 10.1016/j.ijpharm.2013.04.063] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/19/2013] [Accepted: 04/20/2013] [Indexed: 01/21/2023]
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48
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Page JM, Harmata AJ, Guelcher SA. Design and development of reactive injectable and settable polymeric biomaterials. J Biomed Mater Res A 2013; 101:3630-45. [DOI: 10.1002/jbm.a.34665] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 02/05/2013] [Accepted: 02/14/2013] [Indexed: 12/21/2022]
Affiliation(s)
- Jonathan M. Page
- Department of Chemical and Biomolecular Engineering; Vanderbilt University; Nashville Tennessee
- Center for Bone Biology; Department of Medicine; Vanderbilt University Medical Center; Nashville Tennessee
| | - Andrew J. Harmata
- Department of Chemical and Biomolecular Engineering; Vanderbilt University; Nashville Tennessee
- Center for Bone Biology; Department of Medicine; Vanderbilt University Medical Center; Nashville Tennessee
| | - Scott A. Guelcher
- Department of Chemical and Biomolecular Engineering; Vanderbilt University; Nashville Tennessee
- Center for Bone Biology; Department of Medicine; Vanderbilt University Medical Center; Nashville Tennessee
- Department of Biomedical Engineering; Vanderbilt University; Nashville Tennessee
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49
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González-Paz RJ, Ferreira AM, Mattu C, Boccafoschi F, Lligadas G, Ronda JC, Galià M, Cádiz V, Ciardelli G. Cytocompatible polyurethanes from fatty acids through covalent immobilization of collagen. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.02.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Das B, Mandal M, Upadhyay A, Chattopadhyay P, Karak N. Bio-based hyperbranched polyurethane/Fe3O4 nanocomposites: smart antibacterial biomaterials for biomedical devices and implants. Biomed Mater 2013; 8:035003. [PMID: 23532037 DOI: 10.1088/1748-6041/8/3/035003] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The fabrication of a smart magnetically controllable bio-based polymeric nanocomposite (NC) has immense potential in the biomedical domain. In this context, magneto-thermoresponsive sunflower oil modified hyperbranched polyurethane (HBPU)/Fe3O4 NCs with different wt.% of magnetic nanoparticles (Fe3O4) were prepared by an in situ polymerization technique. Fourier-transform infrared, x-ray diffraction, vibrating sample magnetometer, scanning electron microscope, transmission electron microscope, thermal analysis and differential scanning calorimetric were used to analyze various physico-chemical structural attributes of the prepared NC. The results showed good interfacial interactions between HBPU and well-dispersed superparamagnetic Fe3O4, with an average diameter of 7.65 nm. The incorporation of Fe3O4 in HBPU significantly improved the thermo-mechanical properties along with the shape-memory behavior, antibacterial activity, biocompatibility as well as biodegradability in comparison to the pristine system. The cytocompatibility of the degraded products of the NC was also verified by in vitro hemolytic activity and MTT assay. In addition, the in vivo biocompatibility and non-immunological behavior, as tested in Wistar rats after subcutaneous implantation, show promising signs for the NC to be used as antibacterial biomaterial for biomedical device and implant applications.
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Affiliation(s)
- Beauty Das
- Advanced Polymer & Nanomaterial Laboratory, Department of Chemical Sciences, Tezpur University, Tezpur-784028, Assam, India
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