1
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Czifrák K, Lakatos C, Szabó G, Vadkerti B, Daróczi L, Zsuga M, Kéki S. Bisphenol A Diglycidyl Ether-Primary Amine Cooligomer-poly(ε-caprolactone) Networks: Synthesis and Characterization. Polymers (Basel) 2023; 15:2937. [PMID: 37447582 DOI: 10.3390/polym15132937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 06/30/2023] [Accepted: 07/02/2023] [Indexed: 07/15/2023] Open
Abstract
In this work, the preparation and systematic investigation of cross-linked polyurethane-epoxy (PU-EP) polymer systems are reported. The PU-EP polymers were prepared using a reaction of isocyanate (NCO)-terminated PU-prepolymer with diglycidyl ether of bisphenol A (DGEBA)-amine cooligomer. The oligomerization of DGEBA was carried out by adding furfurylamine (FA) or ethanolamine (EA), resulting in DGEBA-amine cooligomers. For the synthesis of NCO-terminated PU-prepolymer, poly(ε-caprolactone)diol (PCD) (Mn = 2 kg/mol) and 1,6-hexamethylene diisocyanate (HDI) were used. The cross-linking was achieved by adding DGEBA-amine cooligomer to PU-prepolymer, in which the obtained urethane bonds, due to the presence of free hydroxil groups in the activated DGEBA, served as netpoints. During cross-linking, ethanolamine provides an additional free hydroxyl group for the formation of a new urethane bond, while furfurylamine can serve as a thermoreversible coupling element (e.g., Diels-Alder adduct). The PU-EP networks were characterized using attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), differential scanning calorimetry (DSC), dynamical mechanical analysis (DMA) and scanning electron microscopy (SEM). The DMA curves of some PU-EPs (depending on the compositions and the synthetic method) revealed a plateau-like region above the melting temperature (Tm) of PCD, confirming the presence of a cross-linked structure. This property resulted in a shape memory (SM) behavior for these samples, which can be fine-tuned in the presence of furfurylamine through the formation of additional thermoreversible bonds (e.g., Diels-Alder adduct).
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Affiliation(s)
- Katalin Czifrák
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Csilla Lakatos
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Gabriella Szabó
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Bence Vadkerti
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
- Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Lajos Daróczi
- Department of Solid State Physics, University of Debrecen, Bem tér 18/b, H-4026 Debrecen, Hungary
| | - Miklós Zsuga
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Sándor Kéki
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
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Pepelnjak T, Stojšić J, Sevšek L, Movrin D, Milutinović M. Influence of Process Parameters on the Characteristics of Additively Manufactured Parts Made from Advanced Biopolymers. Polymers (Basel) 2023; 15:polym15030716. [PMID: 36772018 PMCID: PMC9922018 DOI: 10.3390/polym15030716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 02/04/2023] Open
Abstract
Over the past few decades, additive manufacturing (AM) has become a reliable tool for prototyping and low-volume production. In recent years, the market share of such products has increased rapidly as these manufacturing concepts allow for greater part complexity compared to conventional manufacturing technologies. Furthermore, as recyclability and biocompatibility have become more important in material selection, biopolymers have also become widely used in AM. This article provides an overview of AM with advanced biopolymers in fields from medicine to food packaging. Various AM technologies are presented, focusing on the biopolymers used, selected part fabrication strategies, and influential parameters of the technologies presented. It should be emphasized that inkjet bioprinting, stereolithography, selective laser sintering, fused deposition modeling, extrusion-based bioprinting, and scaffold-free printing are the most commonly used AM technologies for the production of parts from advanced biopolymers. Achievable part complexity will be discussed with emphasis on manufacturable features, layer thickness, production accuracy, materials applied, and part strength in correlation with key AM technologies and their parameters crucial for producing representative examples, anatomical models, specialized medical instruments, medical implants, time-dependent prosthetic features, etc. Future trends of advanced biopolymers focused on establishing target-time-dependent part properties through 4D additive manufacturing are also discussed.
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Affiliation(s)
- Tomaž Pepelnjak
- Faculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, Slovenia
- Correspondence: ; Tel.: +386-1-47-71-734
| | - Josip Stojšić
- Mechanical Engineering Faculty in Slavonski Brod, University of Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia
| | - Luka Sevšek
- Faculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, Slovenia
| | - Dejan Movrin
- Department for Production Engineering, Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
| | - Mladomir Milutinović
- Department for Production Engineering, Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
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Kordován MÁ, Hegedűs C, Czifrák K, Lakatos C, Kálmán-Szabó I, Daróczi L, Zsuga M, Kéki S. Novel Polyurethane Scaffolds Containing Sucrose Crosslinker for Dental Application. Int J Mol Sci 2022; 23:ijms23147904. [PMID: 35887250 PMCID: PMC9319899 DOI: 10.3390/ijms23147904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/14/2022] [Accepted: 07/16/2022] [Indexed: 02/05/2023] Open
Abstract
In this paper, the synthesis, characterization, and properties of crosslinked poly(ε-caprolactone)-based polyurethanes as potential tissue replacement materials are reported. The polyurethane prepolymers were prepared from poly(ε-caprolactone)diol (PCD), polyethylene glycol (PEG)/polylactic acid diol (PLAD), and 1,6-hexamethylene diisocyanate (HDI). In these segmented polyurethanes, the role of PEG/PLAD was to tune the hydrophobic/hydrophilic character of the resulting polymer while sucrose served as a crosslinking agent. PLAD was synthesized by the polycondensation reaction of D,L-lactic acid and investigated by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and nuclear magnetic resonance spectroscopy (NMR). The crosslinked polyurethane samples (SUPURs) obtained were characterized by attenuated total reflectance Fourier-transform infrared spectroscopy (AT-FT-IR), swelling, and mechanical (uniaxial tensile tests) experiments. The thermo and thermomechanical behavior were studied by differential scanning calorimetry (DSC) and dynamical mechanical analysis (DMA). The viability of dental pulp stem cells was investigated in the case of polyurethanes composed of fully biocompatible elements. In our studies, none of our polymers showed toxicity to stem cells (DPSCs).
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Affiliation(s)
- Marcell Árpád Kordován
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
- Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Csaba Hegedűs
- Department of Prosthetic Dentistry and Biomaterials, Faculty of Dentistry, University of Debrecen, H-4012 Debrecen, Hungary; (C.H.); (I.K.-S.)
| | - Katalin Czifrák
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
| | - Csilla Lakatos
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
| | - Ibolya Kálmán-Szabó
- Department of Prosthetic Dentistry and Biomaterials, Faculty of Dentistry, University of Debrecen, H-4012 Debrecen, Hungary; (C.H.); (I.K.-S.)
| | - Lajos Daróczi
- Department of Solid State Physics, University of Debrecen, Bem tér 18/b, H-4026 Debrecen, Hungary;
| | - Miklós Zsuga
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
| | - Sándor Kéki
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
- Correspondence: ; Tel.: +36-52-512-900 (ext. 22455)
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Basak S, Bandyopadhyay A. Styrene‐butadiene‐styrene
‐based shape memory polymers: Evolution and the current state of art. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sayan Basak
- Department of Polymer Science & Technology University of Calcutta Kolkata West Bengal India
| | - Abhijit Bandyopadhyay
- Department of Polymer Science & Technology University of Calcutta Kolkata West Bengal India
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5
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Lakatos C, Kordován MÁ, Czifrák K, Nagy L, Vadkerti B, Daróczi L, Zsuga M, Kéki S. Synthesis of Sucrose-HDI Cooligomers: New Polyols for Novel Polyurethane Networks. Int J Mol Sci 2022; 23:ijms23031444. [PMID: 35163372 PMCID: PMC8836168 DOI: 10.3390/ijms23031444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 02/04/2023] Open
Abstract
Sucrose-1,6-hexamethylene diisocyanate (HDI) cooligomers were synthesized and used as new polyols for poly(ε-caprolactone) (PCL)-based polyurethanes. The polyaddition reaction of sucrose and HDI was monitored by MALDI-TOF MS. It was found that by selecting appropriate reaction conditions, mostly linear oligomer chains containing 16 sucrose units could be obtained. For the synthesis of polyurethane networks, prepolymers were prepared by the reaction of poly(ε-caprolactone) (PCL, 10 kg/mol) with HDI or 4,4′-methylene diphenyl diisocyanate (MDI) and were reacted with sucrose-HDI cooligomers. The so-obtained sucrose-containing polyurethanes were characterized by means of attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FT IR), swelling, mechanical (uniaxial tensile tests) and differential scanning calorimetry (DSC).
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Affiliation(s)
- Csilla Lakatos
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (C.L.); (M.Á.K.); (K.C.); (L.N.); (B.V.); (M.Z.)
| | - Marcell Árpád Kordován
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (C.L.); (M.Á.K.); (K.C.); (L.N.); (B.V.); (M.Z.)
- Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Katalin Czifrák
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (C.L.); (M.Á.K.); (K.C.); (L.N.); (B.V.); (M.Z.)
| | - Lajos Nagy
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (C.L.); (M.Á.K.); (K.C.); (L.N.); (B.V.); (M.Z.)
| | - Bence Vadkerti
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (C.L.); (M.Á.K.); (K.C.); (L.N.); (B.V.); (M.Z.)
- Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Lajos Daróczi
- Department of Solid State Physics, Faculty of Science and Technology, University of Debrecen, Bem tér 18/b, H-4026 Debrecen, Hungary;
| | - Miklós Zsuga
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (C.L.); (M.Á.K.); (K.C.); (L.N.); (B.V.); (M.Z.)
| | - Sándor Kéki
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (C.L.); (M.Á.K.); (K.C.); (L.N.); (B.V.); (M.Z.)
- Correspondence: ; Tel.: +36-52-512-900 (ext. 22455)
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6
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Li X, Hou Q, Zhang J, Cui Q, Xu S, Ding X. The role of branching architecture in shape memory
semi‐IPNs
: Shape memory effect and tube model analysis. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xingjian Li
- School of Materials Science and Engineering Linyi University Linyi P. R. China
| | - Qing Hou
- School of Materials Science and Engineering Linyi University Linyi P. R. China
| | - Jing Zhang
- School of Materials Science and Engineering Linyi University Linyi P. R. China
| | - Qiuyue Cui
- School of Materials Science and Engineering Linyi University Linyi P. R. China
| | - Shoufang Xu
- School of Materials Science and Engineering Linyi University Linyi P. R. China
| | - Xiaobin Ding
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu P. R. China
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7
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Melocchi A, Uboldi M, Cerea M, Foppoli A, Maroni A, Moutaharrik S, Palugan L, Zema L, Gazzaniga A. Shape memory materials and 4D printing in pharmaceutics. Adv Drug Deliv Rev 2021; 173:216-237. [PMID: 33774118 DOI: 10.1016/j.addr.2021.03.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/09/2021] [Accepted: 03/18/2021] [Indexed: 12/18/2022]
Abstract
Shape memory materials (SMMs), including alloys and polymers, can be programmed into a temporary configuration and then recover the original shape in which they were processed in response to a triggering external stimulus (e.g. change in temperature or pH, contact with water). For this behavior, SMMs are currently raising a lot of attention in the pharmaceutical field where they could bring about important innovations in the current treatments. 4D printing involves processing of SMMs by 3D printing, thus adding shape evolution over time to the already numerous customization possibilities of this new manufacturing technology. SMM-based drug delivery systems (DDSs) proposed in the scientific literature were here reviewed and classified according to the target pursued through the shape recovery process. Administration route, therapeutic goal, temporary and original shape, triggering stimulus, main innovation features and possible room for improvement of the DDSs were especially highlighted.
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8
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Haskew MJ, Hardy JG. A Mini-Review of Shape-Memory Polymer-Based Materials : Stimuli-responsive shape-memory polymers. JOHNSON MATTHEY TECHNOLOGY REVIEW 2020. [DOI: 10.1595/205651319x15754757916993] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Shape-memory polymers (SMPs) enable the production of stimuli-responsive polymer-based materials with the ability to undergo a large recoverable deformation upon the application of an external stimulus. Academic and industrial research interest in the shape-memory effects (SMEs) of
these SMP-based materials is growing for task-specific applications. This mini-review covers interesting aspects of SMP-based materials, their properties, how they may be investigated and highlights examples of the potential applications of these materials.
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Affiliation(s)
- Mathew J. Haskew
- Department of Chemistry and Materials Science Institute, Faraday Building, Lancaster University Lancaster, LA1 4YB UK
| | - John G. Hardy
- Department of Chemistry and Materials Science Institute, Faraday Building, Lancaster University Lancaster, LA1 4YB UK
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9
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Hu S, Shou T, Chen S, Zhao X, Lu Y, Zhang L. High shape‐memory effect of hindered phenol/nitrile–butadiene rubber composites by forming hydrogen bonding. J Appl Polym Sci 2020. [DOI: 10.1002/app.48911] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shi‐Kai Hu
- Key Lab of Beijing City on Preparation and Processing of Novel Polymer MaterialsBeijing University of Chemical Technology Beijing 100029 China
- SINOPEC Beijing Research Institute of Chemical Industry Beijing 100013 China
| | - Tao Shou
- Key Lab of Beijing City on Preparation and Processing of Novel Polymer MaterialsBeijing University of Chemical Technology Beijing 100029 China
| | - Si Chen
- Key Lab of Beijing City on Preparation and Processing of Novel Polymer MaterialsBeijing University of Chemical Technology Beijing 100029 China
| | - Xiu‐Ying Zhao
- Key Lab of Beijing City on Preparation and Processing of Novel Polymer MaterialsBeijing University of Chemical Technology Beijing 100029 China
| | - Yong‐Lai Lu
- Key Lab of Beijing City on Preparation and Processing of Novel Polymer MaterialsBeijing University of Chemical Technology Beijing 100029 China
| | - Li‐Qun Zhang
- Key Lab of Beijing City on Preparation and Processing of Novel Polymer MaterialsBeijing University of Chemical Technology Beijing 100029 China
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10
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Classification of Shape-Memory Polymers, Polymer Blends, and Composites. ADVANCED STRUCTURED MATERIALS 2020. [DOI: 10.1007/978-981-13-8574-2_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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11
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Abstract
Herein, the novel shape memory hierarchical AB copolymer networks (HAB-CPNs) with heterophase structures were presented, which showed perfect shape fixity and recovery, rapid response, outstanding cycle performance, and high recovery force.
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Affiliation(s)
- Xingjian Li
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Ru Feng
- School of Materials Science and Engineering
- Linyi University
- Linyi
- P. R. China
| | - Yahui Xu
- School of Materials Science and Engineering
- Linyi University
- Linyi
- P. R. China
| | - Yinwen Li
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Qiang Zhang
- School of Materials Science and Engineering
- Linyi University
- Linyi
- P. R. China
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12
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Jose S, George JJ, Siengchin S, Parameswaranpillai J. Introduction to Shape-Memory Polymers, Polymer Blends and Composites: State of the Art, Opportunities, New Challenges and Future Outlook. ADVANCED STRUCTURED MATERIALS 2020. [DOI: 10.1007/978-981-13-8574-2_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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13
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Polymers for additive manufacturing and 4D-printing: Materials, methodologies, and biomedical applications. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.03.001] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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14
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Recent Progress in Shape Memory Polymers for Biomedical Applications. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2118-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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The impact of shape memory test on degradation profile of a bioresorbable polymer. J Mech Behav Biomed Mater 2018; 81:39-45. [PMID: 29482178 DOI: 10.1016/j.jmbbm.2018.02.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/17/2018] [Accepted: 02/17/2018] [Indexed: 11/23/2022]
Abstract
The semicrystalline poly(L-lactide) (PLLA) belongs to the materials with shape memory effect (SME) and as a bioresorbable and biocompatible polymer it have found many applications in medical and pharmaceutical field. Assessment of the SME impact on the polymer degradation profile plays crucial role in applications such as drug release systems or in regenerative medicine. Herein, the results of in vitro degradation studies of PLLA samples after SME full test cycle are presented. The samples were loaded and deformed in two manners: progressive and non-progressive. The performed experiments illustrate also influence of the material mechanical damages, caused e.g. during incorrect implantation of PLLA product, on hydrolytic degradation profile. Apparently, degradation profiles are significantly different for the material which was not subjected to the deformation and the deformed ones. The materials after deformation of 50% (in SME cycle) was characterized by non-reversible morphology changes. The effect was observed in deformed samples during the SME test which were carried out ten times.
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16
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Rashmi BJ, Loux C, Prashantha K. Bio-based thermoplastic polyurethane and polyamide 11 bioalloys with excellent shape memory behavior. J Appl Polym Sci 2017. [DOI: 10.1002/app.44794] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- B. J. Rashmi
- Mines Douai, Department of Polymers and Composites Technology & Mechanical Engineering; 941 rue Charles Bourseul, CS 10838 Douai Cedex 59508 France
| | - C. Loux
- Mines Douai, Department of Polymers and Composites Technology & Mechanical Engineering; 941 rue Charles Bourseul, CS 10838 Douai Cedex 59508 France
| | - K. Prashantha
- Mines Douai, Department of Polymers and Composites Technology & Mechanical Engineering; 941 rue Charles Bourseul, CS 10838 Douai Cedex 59508 France
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17
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Truong TT, Thai SH, Nguyen HT, Vuong VD, Nguyen LTT. Synthesis of allyl end-block functionalized poly(ε-caprolactone)s and their facile post-functionalization via thiol-ene reaction. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Thuy Thu Truong
- Faculty of Materials Technology; Ho Chi Minh city University of Technology, Vietnam National University (VNU-HCM); 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
| | - Son Hong Thai
- Faculty of Materials Technology; Ho Chi Minh city University of Technology, Vietnam National University (VNU-HCM); 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
| | - Ha Tran Nguyen
- Faculty of Materials Technology; Ho Chi Minh city University of Technology, Vietnam National University (VNU-HCM); 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
- Materials Technology Key Laboratory (Mtlab); Ho Chi Minh City University of Technology, Vietnam National University (VNU-HCM); 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
| | - Vinh-Dat Vuong
- Materials Technology Key Laboratory (Mtlab); Ho Chi Minh City University of Technology, Vietnam National University (VNU-HCM); 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
| | - Le-Thu T. Nguyen
- Faculty of Materials Technology; Ho Chi Minh city University of Technology, Vietnam National University (VNU-HCM); 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
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18
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Lee EM, Smith K, Gall K, Boyan BD, Schwartz Z. Change in surface roughness by dynamic shape-memory acrylate networks enhances osteoblast differentiation. Biomaterials 2016; 110:34-44. [PMID: 27710831 DOI: 10.1016/j.biomaterials.2016.08.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/11/2016] [Accepted: 08/03/2016] [Indexed: 12/17/2022]
Abstract
Microscale surface roughness has been shown to enhance osseointegration of titanium implants through increased osteoblast differentiation while osteoblast proliferation remains greater on smooth titanium. Taking advantage of these phenomena, we developed a shape memory (meth)acrylate copolymer with thermomechanical properties that created a time-dependent dynamic surface change from smooth to rough under in vitro cell culture conditions and evaluated the effect of the shape recovery on osteoblast response. Rough topographies were created using soft lithography techniques to mimic those found on clinically-used Ti surfaces (machined smooth; acid-etched; grit-blasted). The surface roughness was then reduced to smooth via compression and shown to fully recover within 24 h in culture conditions. When grown under static conditions, osteoblast number, alkaline phosphatase specific activity (ALP), and osteoprotegerin (OPG) and vascular endothelial growth factor (VEGF) production were unaffected by polymer surface roughness, but osteocalcin (OCN) was increased on the grit-blasted polymer mimic. Under dynamic conditions, DNA was reduced but OCN and OPG were increased on the compressed grit-blasted polymer at 3 days compared to static surfaces. The present study indicates that responses to polymer surface are sensitive to time-dependent changes in topography. The use of a shape memory polymer with dynamic surface roughness may improve osseointegration.
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Affiliation(s)
- Erin M Lee
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology, Atlanta, GA, USA
| | | | - Ken Gall
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Barbara D Boyan
- Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology, Atlanta, GA, USA; Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA.
| | - Zvi Schwartz
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA; Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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Chevigny C, Foucat L, Rolland-Sabaté A, Buléon A, Lourdin D. Shape-memory effect in amorphous potato starch: The influence of local orders and paracrystallinity. Carbohydr Polym 2016; 146:411-9. [DOI: 10.1016/j.carbpol.2016.03.065] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/21/2016] [Accepted: 03/22/2016] [Indexed: 11/28/2022]
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Lakatos C, Czifrák K, Karger-Kocsis J, Daróczi L, Zsuga M, Kéki S. Shape memory crosslinked polyurethanes containing thermoreversible Diels-Alder couplings. J Appl Polym Sci 2016. [DOI: 10.1002/app.44145] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Csilla Lakatos
- Department of Applied Chemistry; University of Debrecen; Egyetem tér 1 H-4032 Debrecen Hungary
| | - Katalin Czifrák
- Department of Applied Chemistry; University of Debrecen; Egyetem tér 1 H-4032 Debrecen Hungary
| | - József Karger-Kocsis
- Department of Polymer Engineering; Budapest University of Technology and Economics; Műegyetem rkp. 3 H-1111 Budapest Hungary
| | - Lajos Daróczi
- Department of Solid State Physics; University of Debrecen; Bem tér 18/b H-4026 Debrecen Hungary
| | - Miklós Zsuga
- Department of Applied Chemistry; University of Debrecen; Egyetem tér 1 H-4032 Debrecen Hungary
| | - Sándor Kéki
- Department of Applied Chemistry; University of Debrecen; Egyetem tér 1 H-4032 Debrecen Hungary
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Chan BQY, Low ZWK, Heng SJW, Chan SY, Owh C, Loh XJ. Recent Advances in Shape Memory Soft Materials for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:10070-10087. [PMID: 27018814 DOI: 10.1021/acsami.6b01295] [Citation(s) in RCA: 176] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Shape memory polymers (SMPs) are smart and adaptive materials able to recover their shape through an external stimulus. This functionality, combined with the good biocompatibility of polymers, has garnered much interest for biomedical applications. In this review, we discuss the design considerations critical to the successful integration of SMPs for use in vivo. We also highlight recent work on three classes of SMPs: shape memory polymers and blends, shape memory polymer composites, and shape memory hydrogels. These developments open the possibility of incorporating SMPs into device design, which can lead to vast technological improvements in the biomedical field.
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Affiliation(s)
- Benjamin Qi Yu Chan
- Institute of Materials Research and Engineering (IMRE) , 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore
- Department of Materials Science and Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore
| | - Zhi Wei Kenny Low
- Institute of Materials Research and Engineering (IMRE) , 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore
- Department of Materials Science and Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore
| | - Sylvester Jun Wen Heng
- Institute of Materials Research and Engineering (IMRE) , 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore
- Department of Materials Science and Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore
| | - Siew Yin Chan
- Institute of Materials Research and Engineering (IMRE) , 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore
- School of Science, Monash University Malaysia , Bandar Sunway, 47500 Selangor Darul Ehsan, Malaysia
| | - Cally Owh
- Institute of Materials Research and Engineering (IMRE) , 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE) , 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore
- Department of Materials Science and Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore
- Singapore Eye Research Institute , 11 Third Hospital Avenue, Singapore 168751, Singapore
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Ebara M. Shape-memory surfaces for cell mechanobiology. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2015; 16:014804. [PMID: 27877747 PMCID: PMC5036502 DOI: 10.1088/1468-6996/16/1/014804] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 01/15/2015] [Accepted: 01/17/2015] [Indexed: 06/06/2023]
Abstract
Shape-memory polymers (SMPs) are a new class of smart materials, which have the capability to change from a temporary shape 'A' to a memorized permanent shape 'B' upon application of an external stimulus. In recent years, SMPs have attracted much attention from basic and fundamental research to industrial and practical applications due to the cheap and efficient alternative to well-known metallic shape-memory alloys. Since the shape-memory effect in SMPs is not related to a specific material property of single polymers, the control of nanoarchitecture of polymer networks is particularly important for the smart functions of SMPs. Such nanoarchitectonic approaches have enabled us to further create shape-memory surfaces (SMSs) with tunable surface topography at nano scale. The present review aims to bring together the exciting design of SMSs and the ever-expanding range of their uses as tools to control cell functions. The goal for these endeavors is to mimic the surrounding mechanical cues of extracellular environments which have been considered as critical parameters in cell fate determination. The untapped potential of SMSs makes them one of the most exciting interfaces of materials science and cell mechanobiology.
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Affiliation(s)
- Mitsuhiro Ebara
- Biomaterials Unit, International Center for Materials Nanoarchitectonics (WPI-MANA), Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Czifrák K, Karger-Kocsis J, Daróczi L, Zsuga M, Kéki S. Poly(ε-caprolactone) and Pluronic Diol-Containing Segmented Polyurethanes for Shape Memory Performance. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400237] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Katalin Czifrák
- Department of Applied Chemistry; University of Debrecen; Egyetem tér1 H-4032 Debrecen Hungary
| | - József Karger-Kocsis
- Department of Polymer Engineering; Budapest University of Technology and Economics; Mu˝egyetem rkp. 3 H-1111 Budapest Hungary
| | - Lajos Daróczi
- Department of Solid State Physics; University of Debrecen; Bem tér 18/b H-4026 Debrecen Hungary
| | - Miklós Zsuga
- Department of Applied Chemistry; University of Debrecen; Egyetem tér1 H-4032 Debrecen Hungary
| | - Sándor Kéki
- Department of Applied Chemistry; University of Debrecen; Egyetem tér1 H-4032 Debrecen Hungary
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24
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Jing X, Mi HY, Peng XF, Turng LS. The morphology, properties, and shape memory behavior of polylactic acid/thermoplastic polyurethane blends. POLYM ENG SCI 2014. [DOI: 10.1002/pen.23873] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xin Jing
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology; Guangzhou 510640 China
- Department of Mechanical Engineering and Wisconsin Institute for Discovery; University of Wisconsin-Madison; Madison Wisconsin 53706
| | - Hao-Yang Mi
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology; Guangzhou 510640 China
- Department of Mechanical Engineering and Wisconsin Institute for Discovery; University of Wisconsin-Madison; Madison Wisconsin 53706
| | - Xiang-Fang Peng
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology; Guangzhou 510640 China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering and Wisconsin Institute for Discovery; University of Wisconsin-Madison; Madison Wisconsin 53706
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Shape Memory Properties of PBS-Silica Hybrids. MATERIALS 2014; 7:751-768. [PMID: 28788486 PMCID: PMC5453071 DOI: 10.3390/ma7020751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 01/21/2014] [Accepted: 01/22/2014] [Indexed: 11/29/2022]
Abstract
A series of novel Si–O–Si crosslinked organic/inorganic hybrid semi-crystalline polymers with shape memory properties was prepared from alkoxysilane-terminated poly(butylene succinate) (PBS) by water-induced silane crosslinking under organic solvent-free and catalyst-free conditions. The hydrolyzation and condensation of alkoxysilane end groups allowed for the generation of silica-like crosslinking points between the polymeric chains, acting not only as chemical net-points, but also as inorganic filler for a reinforcement effect. The resulting networks were characterized using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic-mechanical analysis (DMA) and tensile and shape memory tests to gain insight into the relationship between the polymeric structure, the morphology and the properties. By controlling the molecular weight of the PBS precursor, a fine tuning of the crosslinking density and the inorganic content of the resulting network was possible, leading to different thermal, mechanical and shape memory properties. Thanks to their suitable morphology consisting of crystalline domains, which represent the molecular switches between the temporary and permanent shapes, and chemical net-points, which permit the shape recovery, the synthesized materials showed good shape memory characteristics, being able to fix a significant portion of the applied strain in a temporary shape and to restore their original shape above their melting temperature.
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Lendlein A, Wischke C. How to accelerate biomaterial development? Strategies to support the application of novel polymer-based biomaterials in implantable devices. Expert Rev Med Devices 2014; 8:533-7. [DOI: 10.1586/erd.11.39] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Lendlein A, Behl M, Hiebl B, Wischke C. Shape-memory polymers as a technology platform for biomedical applications. Expert Rev Med Devices 2014; 7:357-79. [DOI: 10.1586/erd.10.8] [Citation(s) in RCA: 317] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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28
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Sisson AL, Ekinci D, Lendlein A. The contemporary role of ε-caprolactone chemistry to create advanced polymer architectures. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.04.045] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Shaping tissue with shape memory materials. Adv Drug Deliv Rev 2013; 65:515-35. [PMID: 22727746 DOI: 10.1016/j.addr.2012.06.004] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 03/30/2012] [Accepted: 06/13/2012] [Indexed: 01/11/2023]
Abstract
After being severely and quasi-plastically deformed, shape memory materials are able to return to their original shape at the presence of the right stimulus. After a brief presentation about the fundamentals, including various shape memory effects, working mechanisms, and typical shape memory materials for biomedical applications, we summarize some major applications in shaping tissue with shape memory materials. The focus is on some most recent development. Outlook is also discussed at the end of this paper.
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31
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Safranski DL, Smith KE, Gall K. Mechanical Requirements of Shape-Memory Polymers in Biomedical Devices. POLYM REV 2013. [DOI: 10.1080/15583724.2012.752385] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Oligo(epsilon-caprolactone)-based polymer networks prepared by photocrosslinking in solution. J Appl Biomater Funct Mater 2012; 10:273-9. [PMID: 23242870 DOI: 10.5301/jabfm.2012.10372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2012] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Polymer networks with adjustable properties prepared from endgroup-functionalized oligoesters by UV-crosslinking in melt have evolved into versatile multifunctional biomaterials. In addition to the molecular weight or architecture of precursors, the reaction conditions for crosslinking are pivotal for the polymer network properties. Crosslinking of precursors in solution may facilitate low-temperature processes and are compared here to networks synthesized in melt. METHODS Oligo(epsilon-caprolactone)-(z)methacrylate (oCL-(z)IEMA) precursors with a linear (z = di) or a four-armed star-shaped (z = tetra) architecture were crosslinked by radical polymerization in melt or in solution with UV irradiation. The thermal, mechanical, and swelling properties of the polymer networks obtained were characterized. RESULTS Crosslinking in solution resulted in materials with lower Young's moduli (E), lower maximum stress (σmax), and higher elongation at break (epsilonB) as determined at 70 °C. Polymer networks from 8 kDa star-shaped precursors exhibited poor elasticity when synthesized in the melt, but can be established as stretchable materials with a semi-crystalline morphology, a high gel- content, and a high elongation at break when prepared in solution. CONCLUSIONS The crosslinking condition of methacrylate functionalized precursors significantly affected network properties. For some types of precursors such as star-shaped telechelics, synthesis in solution provided semi-crystalline elastic materials that were not accessible from crosslinking in melt.
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Thermo/chemo-responsive shape memory effect in polymers: a sketch of working mechanisms, fundamentals and optimization. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-9952-z] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Serrano MC, Ameer GA. Recent insights into the biomedical applications of shape-memory polymers. Macromol Biosci 2012; 12:1156-71. [PMID: 22887759 DOI: 10.1002/mabi.201200097] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 06/04/2012] [Indexed: 11/10/2022]
Abstract
Shape-memory polymers (SMP) are versatile stimuli-responsive materials that can switch, upon stimulation, from a temporary to a permanent shape. This advanced functionality makes SMP suitable and promising materials for diverse technological applications, including the fabrication of smart biomedical devices. In this paper, advances in the design of SMP are discussed, with emphasis on materials investigated for medical applications. Future directions necessary to bring SMP closer to their clinical application are also highlighted.
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Affiliation(s)
- Maria C Serrano
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, Madrid 28049, Spain
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35
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Wang Z, Hou Z, Wang Y. Fluorinated waterborne shape memory polyurethane urea for potential medical implant application. J Appl Polym Sci 2012. [DOI: 10.1002/app.37862] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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37
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Xue L, Dai S, Li Z. Synthesis and characterization of elastic star shape-memory polymers as self-expandable drug-eluting stents. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15918j] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Pierce BF, Tronci G, Rößle M, Neffe AT, Jung F, Lendlein A. Photocrosslinked Co-Networks from Glycidylmethacrylated Gelatin and Poly(ethylene glycol) Methacrylates. Macromol Biosci 2011; 12:484-93. [DOI: 10.1002/mabi.201100232] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 09/20/2011] [Indexed: 12/12/2022]
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39
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Wischke C, Tripodo G, Choi NY, Lendlein A. Hydrolytic Degradation Behavior of Poly(rac-
lactide)-block-
poly(propylene glycol)-block-
poly(rac-
lactide) Dimethacrylate Derived Networks Designed for Biomedical Applications. Macromol Biosci 2011; 11:1637-46. [DOI: 10.1002/mabi.201100226] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Indexed: 11/11/2022]
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40
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Shape-memory behavior of poly (methyl methacrylate-co –N-vinyl-2-pyrrolidone) / poly (ethylene glycol) semi-interpenetrating polymer networks based on hydrogen bonding. JOURNAL OF POLYMER RESEARCH 2011. [DOI: 10.1007/s10965-011-9621-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Why Are So Few Degradable Polymeric Biomaterials Currently Established in Clinical Applications? Int J Artif Organs 2011; 34:71-5. [DOI: 10.5301/ijao.2011.6422] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2011] [Indexed: 11/20/2022]
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42
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Neffe AT, Hanh BD, Steuer S, Wischke C, Lendlein A. Thermomechanical Properties and Shape-Memory Capability of Drug Loaded Semi-Crystalline Polyestermethacrylate Networks. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-1190-nn06-02] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractPolymer networks synthesized by UV-curing of Oligo[(ε-caprolactone)-co-glycolide]dimethacrylates are hydolytically degradable. Their architecture with covalent netpoints and crystallizable domains is the molecular basis for the potential shape-memory capability. The molecular weight and glycolide content of the oligomeric precursors can be varied over a broad range of compositions to tailor the thermomechanical properties of the polymer network while having only a minor influence on the shape-memory effect. Recently, drug incorporation adding controlled drug release as further functionality to the polymer network was demonstrated [4]. Here, enoxacin and ethacridine lactate as test drugs were incorporated into the networks by soaking. Alternatively, defined amounts of ethacridine lactate were mixed with the precursors, which were subsequently crosslinked to the drug containing networks. The composition of the oligomeric precursors in molecular weight between 3800 and 12800 g�mol-1 and in glycolide content ϝG between 0 and 30 mol-% to explore the influence of the drug incorporation on networks with varying compositions while retaining properties and functionalities. Polymer networks prepared from precursors with ϝG ? 14 mol-% and Mn ? 6900 g�mol-1 have a Tsw of 35-52 �C and sufficient crystallinity to ensure a high shape fixity in the programming step. These limits have to be kept to ensure the desired multifunctionality, otherwise drug incorporation can have an undesired influence on thermal, mechanical, and shape-memory properties.
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Biodegradable Polymeric Assemblies for Biomedical Materials. POLYMERS IN NANOMEDICINE 2011. [DOI: 10.1007/12_2011_160] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Cui J, Kratz K, Heuchel M, Hiebl B, Lendlein A. Mechanically active scaffolds from radio-opaque shape-memory polymer-based composites. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1733] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Wu L, Jin C, Sun X. Synthesis, Properties, and Light-Induced Shape Memory Effect of Multiblock Polyesterurethanes Containing Biodegradable Segments and Pendant Cinnamamide Groups. Biomacromolecules 2010; 12:235-41. [DOI: 10.1021/bm1012162] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Linbo Wu
- Department of Chemical and Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chunli Jin
- Department of Chemical and Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiangying Sun
- Department of Chemical and Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
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Relaxation based modeling of tunable shape recovery kinetics observed under isothermal conditions for amorphous shape-memory polymers. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.10.051] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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47
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Cui J, Kratz K, Hiebl B, Jung F, Lendlein A. Soft poly(n
-butyl acrylate) networks with tailored mechanical properties designed as substrates for in vitro
models. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1816] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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48
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Sivakumar C, Sultan Nasar A. Shape-memory polyurethanes minimally crosslinked with hydroxyl-terminated AB2-type hyperbranched polyurethanes. J Appl Polym Sci 2010. [DOI: 10.1002/app.33084] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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Wischke C, Neffe AT, Steuer S, Lendlein A. Comparing techniques for drug loading of shape-memory polymer networks – effect on their functionalities. Eur J Pharm Sci 2010; 41:136-47. [DOI: 10.1016/j.ejps.2010.06.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 06/02/2010] [Indexed: 10/19/2022]
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50
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Zotzmann J, Behl M, Hofmann D, Lendlein A. Reversible triple-shape effect of polymer networks containing polypentadecalactone- and poly(epsilon-caprolactone)-segments. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:3424-3429. [PMID: 20405494 DOI: 10.1002/adma.200904202] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- Jörg Zotzmann
- Center for Biomaterial Development, Institute of Polymer Research, Teltow, Germany
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