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Bednarek M, Borska K, Kubisa P. Crosslinking of Polylactide by High Energy Irradiation and Photo-Curing. Molecules 2020; 25:E4919. [PMID: 33114261 PMCID: PMC7660633 DOI: 10.3390/molecules25214919] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 12/19/2022] Open
Abstract
Polylactide (PLA) is presently the most studied bioderived polymer because, in addition to its established position as a material for biomedical applications, it can replace mass production plastics from petroleum. However, some drawbacks of polylactide such as insufficient mechanical properties at a higher temperature and poor shape stability have to be overcome. One of the methods of mechanical and thermal properties modification is crosslinking which can be achieved by different approaches, both at the stage of PLA-based materials synthesis and by physical modification of neat polylactide. This review covers PLA crosslinking by applying different types of irradiation, i.e., high energy electron beam or gamma irradiation and UV light which enables curing at mild conditions. In the last section, selected examples of biomedical applications as well as applications for packaging and daily-use items are presented in order to visualize how a variety of materials can be obtained using specific methods.
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Affiliation(s)
- Melania Bednarek
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-362 Lodz, Poland; (K.B.); (P.K.)
| | - Katarina Borska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-362 Lodz, Poland; (K.B.); (P.K.)
- Polymer Institute, Slovak Academy of Sciences, Dubravska Cesta 9, 845 41 Bratislava, Slovakia
| | - Przemysław Kubisa
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-362 Lodz, Poland; (K.B.); (P.K.)
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Guo F, Zhang W, Pei X, Shen X, Yan Q, Li H, Yun J, Yang G. Biodegradable star-shaped polycyclic ester elastomers: Preparation, degradability, protein release, and biocompatibility in vitro. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911516664194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Effective local delivery methods for sustained and stable release of protein drugs are urgently needed. Biodegradable elastomers based on star-shaped polycyclic esters have received attention for their drug-loading and drug-release kinetics. However, the long degradation periods resulting from their strong lipophilicity greatly hinder their application. In this study, we synthesized new cross-linked elastomers based on methyl-acrylic-star-poly(ϵ-caprolactone- co-d,l-lactide) cyclic ester and methyl-bi-acrylic-poly(ϵ-caprolactone-b-poly(ethylene glycol)-b-ϵ-caprolactone) with different molecular weights; determined their physical, thermal, and morphological characteristics; and studied their in vitro degradation and release of bovine serum albumin and recombinant human interleukin 2. Elastomer hydrophilicity improved with the introduction of methyl-bi-acrylic-poly(ϵ-caprolactone-b-poly(ethylene glycol)-b-ϵ-caprolactone), and a shorter degradation period (~25 weeks) was achieved. Additionally, the degradation rate could be adjusted by varying the composition of methyl-bi-acrylic-poly(ϵ-caprolactone-b-poly(ethylene glycol)-b-ϵ-caprolactone) to directly influence the degree of swelling, cross-linking density, and sol content of the elastomer. The controlled rate of bovine serum albumin and recombinant human interleukin 2 release increased with a larger degree of swelling, higher sol content, and lower cross-link density of the elastomers. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide analysis showed good biocompatibility. These results suggest that these new elastomers are potential candidates for carrier materials in controlled, implantable delivery systems for protein drugs and other biomedical applications.
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Affiliation(s)
- Fangyuan Guo
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Wei Zhang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Xiaohong Pei
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Xia Shen
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Qinying Yan
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Hanbing Li
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Junxian Yun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Gensheng Yang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
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Amsden BG, Marecak D. Long-Term Sustained Release from a Biodegradable Photo-Cross-Linked Network for Intraocular Corticosteroid Delivery. Mol Pharm 2016; 13:3004-12. [DOI: 10.1021/acs.molpharmaceut.6b00358] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Brian G. Amsden
- Department
of Chemical Engineering, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Dale Marecak
- Department
of Chemical Engineering, Queen’s University, Kingston, Ontario, Canada K7L 3N6
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Zant E, Grijpma DW. Synthetic Biodegradable Hydrogels with Excellent Mechanical Properties and Good Cell Adhesion Characteristics Obtained by the Combinatorial Synthesis of Photo-Cross-Linked Networks. Biomacromolecules 2016; 17:1582-92. [DOI: 10.1021/acs.biomac.5b01721] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Erwin Zant
- MIRA
Institute for Biomedical Technology and Technical Medicine and Department
of Biomaterials Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Dirk W. Grijpma
- MIRA
Institute for Biomedical Technology and Technical Medicine and Department
of Biomaterials Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
- W.
J. Kolff Institute, Department of Biomedical Engineering, University of Groningen, University Medical Centre Groningen, P.O. Box 196, 9700 AD Groningen, The Netherlands
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Photo-crosslinked networks prepared from fumaric acid monoethyl ester-functionalized poly(D,L-lactic acid) oligomers and N-vinyl-2-pyrrolidone for the controlled and sustained release of proteins. Acta Biomater 2012; 8:3652-9. [PMID: 22705046 DOI: 10.1016/j.actbio.2012.06.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 04/17/2012] [Accepted: 06/07/2012] [Indexed: 11/23/2022]
Abstract
Photo-crosslinked networks were prepared from fumaric acid monoethyl ester-functionalized poly(D,L-lactic acid) oligomers and N-vinyl-2-pyrrolidone. Two model proteins, lysozyme and albumin, were incorporated into the network films as solid particles and their release behavior was studied. By varying the NVP content and macromer molecular weight the degradation behavior and protein release profiles of the prepared networks could be tuned. The more hydrophilic and less densely crosslinked networks released albumin and lysozyme at a faster rate. Although active lysozyme was released from the networks over the complete release period, lysozyme release was often incomplete. This was most likely caused by electrostatic and/or hydrophobic interactions between the protein and the degrading polymer network.
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Amsden B, Qi B. Anti-atherosclerotic peptide delivery from a photocrosslinkable biodegradable network. Int J Pharm 2010; 388:32-9. [DOI: 10.1016/j.ijpharm.2009.12.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 12/03/2009] [Accepted: 12/10/2009] [Indexed: 11/17/2022]
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