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Jandaghian MH, Kazerooni H. Performance of polyurea formulations against impact loads: A molecular dynamics and mechanical simulation approach. J Appl Polym Sci 2021. [DOI: 10.1002/app.50309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mohammad Hossein Jandaghian
- Department of Defense Sciences and Technologies Supreme National Defense University Tehran Iran
- Polymer Engineering and Color Technology Department Amirkabir University of Technology Tehran Iran
| | - Hanif Kazerooni
- Department of Defense Sciences and Technologies Supreme National Defense University Tehran Iran
- Chemical Engineering Department Amirkabir University of Technology Tehran Iran
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2
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Dong F, Meschter SJ, Nozaki S, Ohshima T, Makino T, Cho J. Effect of coating adhesion and degradation on tin whisker mitigation of polyurethane-based conformal coatings. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.05.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Easley AD, Monroe MBB, Hasan SM, Weems AC, Frederick J, Maitland DJ. Shape memory polyurethane-urea foams with improved toughness. J Appl Polym Sci 2019; 136:47268. [PMID: 32724263 PMCID: PMC7386400 DOI: 10.1002/app.47268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/04/2018] [Indexed: 11/08/2022]
Abstract
Current vascular aneurysm treatments often require either highly invasive strategy to surgically occlude an aneurysm or endovascular occlusion via metal coils. While endovascular coils are safer, they have limited efficacy. Endovascular coils that are integrated with shape memory polymer (SMP) foams have the potential to improve occlusion and reduce coil risks; however, the mechanical performance and limited homogeneity of SMP foams can hinder their effective use. To address this issue, SMP foams are synthesized using the monomer diethanolamine (DEA) in place of triethanolamine (TEA) to provide improved mechanical properties for medical device applications. Mechanical testing and micro-fracture analysis were performed on DEA and TEA foams. DEA foams show improved toughness and reduced micro-fractures compared to the control. This work presents the utility of DEA in SMP synthesis to enable the potential production of safer aneurysm treatment.
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Affiliation(s)
- Alexandra D Easley
- Biomedical Device Laboratory, Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120
| | - Mary Beth Browning Monroe
- Biomedical Device Laboratory, Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120
| | - Sayyeda M Hasan
- Biomedical Device Laboratory, Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120
| | - Andrew C Weems
- Biomedical Device Laboratory, Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120
| | - Jane Frederick
- Biomedical Device Laboratory, Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120
| | - Duncan J Maitland
- Biomedical Device Laboratory, Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120
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4
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Rohman G, Ramtani S, Changotade S, Langueh C, Lutomski D, Roussigné Y, Tétard F, Caupin F, Djemia P. Characterization of elastomeric scaffolds developed for tissue engineering applications by compression and nanoindentation tests, μ-Raman and μ-Brillouin spectroscopies. BIOMEDICAL OPTICS EXPRESS 2019; 10:1649-1659. [PMID: 31086698 PMCID: PMC6485004 DOI: 10.1364/boe.10.001649] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/10/2019] [Accepted: 02/17/2019] [Indexed: 05/03/2023]
Abstract
In tissue engineering, porous biodegradable scaffolds are developed with morphological, chemical and mechanical properties to promote cell response. Therefore, the scaffold characterization at a (sub)micrometer and (bio)molecular level is paramount since cells are sensitive to the chemical signals, the rigidity, and the spatial structuring of their microenvironment. In addition to the analysis at room temperature by conventional quasi-static (0.1-45 Hz) mechanical tests, the ultrasonic (10 MHz) and μ-Brillouin inelastic light scattering (13 GHz) were used in this study to assess the dynamical viscoelastic parameters at different frequencies of elastomeric scaffolds. Time-temperature superposition principle was used to increase the high frequency interval (100 MHz-100 THz) of Brillouin experiments providing a mean to analyse the viscoelastic behavior with the fractional derivative viscoelastic model. Moreover, the μ-Raman analysis carried out simultaneously during the μ-Brillouin experiment, gave the local chemical composition.
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Affiliation(s)
- Géraldine Rohman
- Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d’Agents Thérapeutiques CSPBAT UMR7244 CNRS, Université Paris 13, Villetaneuse ,
France
- Institut Interdisciplinaire des Sciences Expérimentales, Université Paris 13, Villetaneuse,
France
| | - Salah Ramtani
- Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d’Agents Thérapeutiques CSPBAT UMR7244 CNRS, Université Paris 13, Villetaneuse ,
France
- Institut Interdisciplinaire des Sciences Expérimentales, Université Paris 13, Villetaneuse,
France
| | - Sylvie Changotade
- Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d’Agents Thérapeutiques CSPBAT UMR7244 CNRS, Université Paris 13, Villetaneuse ,
France
- Institut Interdisciplinaire des Sciences Expérimentales, Université Paris 13, Villetaneuse,
France
| | - Credson Langueh
- Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d’Agents Thérapeutiques CSPBAT UMR7244 CNRS, Université Paris 13, Villetaneuse ,
France
- Institut Interdisciplinaire des Sciences Expérimentales, Université Paris 13, Villetaneuse,
France
| | - Didier Lutomski
- Laboratoire Chimie, Structures, Propriétés de Biomatériaux et d’Agents Thérapeutiques CSPBAT UMR7244 CNRS, Université Paris 13, Villetaneuse ,
France
- Institut Interdisciplinaire des Sciences Expérimentales, Université Paris 13, Villetaneuse,
France
| | - Yves Roussigné
- Laboratoire des Sciences des Procédés et des Matériaux LSPM-CNRS 3407, Sorbonne Paris Cité, Villetaneuse,
France
| | - Florent Tétard
- Laboratoire des Sciences des Procédés et des Matériaux LSPM-CNRS 3407, Sorbonne Paris Cité, Villetaneuse,
France
| | - Fréderic Caupin
- Université de Lyon, Université Claude Bernard, Lyon 1, CNRS, Institut Lumiére Matiére, F-69622,
Villeurbanne, France
| | - Philippe Djemia
- Institut Interdisciplinaire des Sciences Expérimentales, Université Paris 13, Villetaneuse,
France
- Laboratoire des Sciences des Procédés et des Matériaux LSPM-CNRS 3407, Sorbonne Paris Cité, Villetaneuse,
France
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6
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Duan Y, Jana SC, Lama B, Espe MP. Self-crosslinkable poly(urethane urea)-reinforced silica aerogels. RSC Adv 2015. [DOI: 10.1039/c5ra11769k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One-pot aerogel synthesis with sol–gel and reinforcement reactions in tandem. Reinforcing polymer molecules link silica networks at multiple (≥3) sites.
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Affiliation(s)
- Yannan Duan
- Department of Polymer Engineering
- The University of Akron
- Akron
- USA
| | - Sadhan C. Jana
- Department of Polymer Engineering
- The University of Akron
- Akron
- USA
| | - Bimala Lama
- Department of Chemistry
- The University of Akron
- Akron
- USA
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8
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Majoros LI, Dekeyser B, Haucourt N, Castelein P, Paul J, Kranenburg JM, Rettler E, Hoogenboom R, Schubert US. Preparation of polyurethane elastomers (PUEs) in a high-throughput workflow. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Xie R, Bhattacharjee D, Argyropoulos J. Polyurethane elastomers based on 1,3 and 1,4-bis(isocyanatomethyl)cyclohexane. J Appl Polym Sci 2009. [DOI: 10.1002/app.29934] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Laity PR, Taylor JE, Wong SS, Khunkamchoo P, Cable M, Andrews GT, Johnson AF, Cameron RE. The Effect of Polyurethane Composition and Processing History on Mechanical Properties. J MACROMOL SCI B 2007. [DOI: 10.1081/mb-200050487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- P. R. Laity
- a Materials Science and Metallurgy , University of Cambridge , Pembroke St. Cambridge, UK
| | - J. E. Taylor
- b IRC in Polymer Science and Technology, School of Chemistry , University of Leeds , UK
| | - S. S. Wong
- b IRC in Polymer Science and Technology, School of Chemistry , University of Leeds , UK
| | - P. Khunkamchoo
- b IRC in Polymer Science and Technology, School of Chemistry , University of Leeds , UK
| | - M. Cable
- c Ranier Technology Ltd. , Greenhouse Park Innovation Centre , Cambridge, UK
| | - G. T. Andrews
- c Ranier Technology Ltd. , Greenhouse Park Innovation Centre , Cambridge, UK
| | - A. F. Johnson
- b IRC in Polymer Science and Technology, School of Chemistry , University of Leeds , UK
| | - R. E. Cameron
- a Materials Science and Metallurgy , University of Cambridge , Pembroke St. Cambridge, UK
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12
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Ginzburg VV, Bicerano J, Christenson CP, Schrock AK, Patashinski AZ. Theoretical modeling of the relationship between Young's modulus and formulation variables for segmented polyurethanes. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/polb.21213] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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