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Oshinowo M, Piccini M, Kociok-Köhn G, Marken F, Buchard A. Xylose- and Nucleoside-Based Polymers via Thiol-ene Polymerization toward Sugar-Derived Solid Polymer Electrolytes. ACS APPLIED POLYMER MATERIALS 2024; 6:1622-1632. [PMID: 38357438 PMCID: PMC10862469 DOI: 10.1021/acsapm.3c02119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 02/16/2024]
Abstract
A series of copolymers have been prepared via thiol-ene polymerization of bioderived α,ω-unsaturated diene monomers with dithiols toward application as solid polymer electrolytes (SPEs) for Li+-ion conduction. Amorphous polyesters and polyethers with low Tg's (-31 to -11 °C) were first prepared from xylose-based monomers (with varying lengths of fatty acid moiety) and 2,2'-(ethylenedioxy)diethanethiol (EDT). Cross-linking by incorporation of a trifunctional monomer also produced a series of SPEs with ionic conductivities up to 2.2 × 10-5 S cm-1 at 60 °C and electrochemical stability up to 5.08 V, a significant improvement over previous xylose-derived materials. Furthermore, a series of copolymers bearing nucleoside moieties were prepared to exploit the complementary base-pairing interaction of nucleobases. Flexible, transparent, and reprocessable SPE films were thus prepared with improved ionic conductivity (up to 1.5 × 10-4 S cm-1 at 60 °C), hydrolytic degradability, and potential self-healing capabilities.
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Affiliation(s)
- Matthew Oshinowo
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
| | - Marco Piccini
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
| | - Gabriele Kociok-Köhn
- Materials
and Chemical Characterisation Facility (MC2), University of Bath, Claverton Down, Bath BA2
7AY, U.K.
| | - Frank Marken
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
| | - Antoine Buchard
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
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2
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McDonald SM, Yang Q, Hsu YH, Nikam SP, Hu Z, Wang Z, Asheghali D, Yen T, Dobrynin AV, Rogers JA, Becker ML. Resorbable barrier polymers for flexible bioelectronics. Nat Commun 2023; 14:7299. [PMID: 37949871 PMCID: PMC10638316 DOI: 10.1038/s41467-023-42775-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023] Open
Abstract
Resorbable, implantable bioelectronic devices are emerging as powerful tools to reliably monitor critical physiological parameters in real time over extended periods. While degradable magnesium-based electronics have pioneered this effort, relatively short functional lifetimes have slowed clinical translation. Barrier films that are both flexible and resorbable over predictable timelines would enable tunability in device lifetime and expand the viability of these devices. Herein, we present a library of stereocontrolled succinate-based copolyesters which leverage copolymer composition and processing method to afford tunability over thermomechanical, crystalline, and barrier properties. One copolymer composition within this library has extended the functional lifetime of transient bioelectronic prototypes over existing systems by several weeks-representing a considerable step towards translational devices.
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Affiliation(s)
| | - Quansan Yang
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Yen-Hao Hsu
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
| | - Shantanu P Nikam
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
| | - Ziying Hu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Zilu Wang
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Darya Asheghali
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
| | - Tiffany Yen
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
| | - Andrey V Dobrynin
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA
| | - John A Rogers
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA.
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.
- Department of Biomedical Engineering and Neurological Surgery, Northwestern University, Evanston, IL, 60208, USA.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.
| | - Matthew L Becker
- Department of Chemistry, Duke University, Durham, NC, 27708, USA.
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA.
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA.
- Department of Orthopedic Surgery, Duke University, Durham, NC, 27708, USA.
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Ritter VC, McDonald SM, Dobrynin AV, Craig SL, Becker ML. Mechanochromism and Strain-Induced Crystallization in Thiol-yne-Derived Stereoelastomers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302163. [PMID: 37399511 DOI: 10.1002/adma.202302163] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/19/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023]
Abstract
Most elastomers undergo strain-induced crystallization (SIC) under tension; as individual chains are held rigidly in a fixed position by an applied strain, their alignment along the strain field results in a shift from strain-hardening (SH) to SIC. A similar degree of stretching is associated with the tension necessary to accelerate mechanically coupled, covalent chemical responses of mechanophores in overstretched chains, raising the possibility of an interplay between the macroscopic response of SIC and the molecular response of mechanophore activation. Here, thiol-yne-derived stereoelastomers doped covalently with a dipropiolate-derivatized spiropyran (SP) mechanophore (0.25-0.38 mol%) are reported. The material properties of SP-containing films are consistent with undoped controls, indicating that the SP is a reporter of the mechanical state of the polymer. Uniaxial tensile tests reveal correlations between mechanochromism and SIC, which are strain-rate-dependent. When mechanochromic films are stretched slowly to the point of mechanophore activation, the covalently tethered mechanophore remains trapped in a force-activated state, even after the applied stress is removed. Mechanophore reversion kinetics correlate with the applied strain rate, resulting in highly tunable decoloration rates. Because these polymers are not covalently crosslinked, they are recyclable by melt-pressing into new films, increasing their potential range of strain-sensing, morphology-sensing, and shape-memory applications.
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Affiliation(s)
| | | | - Andrey V Dobrynin
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Stephen L Craig
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
| | - Matthew L Becker
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
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Nikam SP, Hsu YH, Marks JR, Mateas C, Brigham NC, McDonald SM, Guggenheim DS, Ruppert D, Everitt JI, Levinson H, Becker ML. Anti-adhesive bioresorbable elastomer-coated composite hernia mesh that reduce intraperitoneal adhesions. Biomaterials 2023; 292:121940. [PMID: 36493714 DOI: 10.1016/j.biomaterials.2022.121940] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/26/2022] [Accepted: 12/02/2022] [Indexed: 12/07/2022]
Abstract
Intraperitoneal adhesions (IAs) are a major complication arising from abdominal repair surgeries, including hernia repair procedures. Herein, we fabricated a composite mesh device using a macroporous monofilament polypropylene mesh and a degradable elastomer coating designed to meet the requirements of this clinical application. The degradable elastomer was synthesized using an organo-base catalyzed thiol-yne addition polymerization that affords independent control of degradation rate and mechanical properties. The elastomeric coating was further enhanced by the covalent tethering of antifouling zwitterion molecules. Mechanical testing demonstrated the elastomer forms a robust coating on the polypropylene mesh does not exhibit micro-fractures, cracks or mechanical delamination under cyclic fatigue testing that exceeds peak abdominal loads (50 N/cm). Quartz crystal microbalance measurements showed the zwitterionic functionalized elastomer further reduced fibrinogen adsorption by 73% in vitro when compared to unfunctionalized elastomer controls. The elastomer exhibited degradation with limited tissue response in a 10-week murine subcutaneous implantation model. We also evaluated the composite mesh in an 84-day study in a rabbit cecal abrasion hernia adhesion model. The zwitterionic composite mesh significantly reduced the extent and tenacity of IAs by 94% and 90% respectively with respect to uncoated polypropylene mesh. The resulting composite mesh device is an excellent candidate to reduce complications related to abdominal repair through suppressed fouling and adhesion formation, reduced tissue inflammation, and appropriate degradation rate.
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Affiliation(s)
- Shantanu P Nikam
- Department of Chemistry, Duke University, Durham, NC, 27708, United States; Department of Polymer Science, The University of Akron, Akron, OH 44325, United States
| | - Yen-Hao Hsu
- Department of Chemistry, Duke University, Durham, NC, 27708, United States; Department of Polymer Science, The University of Akron, Akron, OH 44325, United States
| | - Jessica R Marks
- Department of Chemistry, Duke University, Durham, NC, 27708, United States
| | - Catalin Mateas
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, United States
| | - Natasha C Brigham
- Department of Chemistry, Duke University, Durham, NC, 27708, United States
| | | | - Dana S Guggenheim
- Department of Chemistry, Duke University, Durham, NC, 27708, United States
| | - David Ruppert
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, United States
| | - Jeffrey I Everitt
- Department of Pathology, Duke University, Durham, NC, 27708, United States
| | - Howard Levinson
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, United States.
| | - Matthew L Becker
- Department of Chemistry, Duke University, Durham, NC, 27708, United States; Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, United States; Department of Orthopaedic Surgery, Duke University, Durham, NC, 27708, United States; Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States.
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5
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He S, Hu S, Wu Y, Jin R, Niu Z, Wang R, Xue J, Wu S, Zhao X, Zhang L. Polyurethanes Based on Polylactic Acid for 3D Printing and Shape-Memory Applications. Biomacromolecules 2022; 23:4192-4202. [PMID: 36073828 DOI: 10.1021/acs.biomac.2c00662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polylactic acid (PLA) has received increased attention in the development of shape-memory polymers and biomedical materials owing to its excellent physical properties and good biocompatibility and biodegradability. However, the inherent brittleness and high shape-recovery temperature of this material limit its application in the human body. Herein, we fabricated a PLA-based thermoplastic polyurethane (PLA-TPU) prepared from modified PLA-diol, dicyclohexylmethane-4,4'-diisocyanate, and 1,4-butanediol to solve the limitations of pure PLA. The glass transition temperature (Tg) of the designed TPU can be tailored from 6 to 40.5 °C by adjusting the content of hard segments or molecular weight of soft segments. The shape of the designed TPU can be fixed at room temperature and recovered at temperatures above 37 °C. Moreover, the prepared PLA-TPUs exhibited recyclability, three-dimensional printing capability, non-cytotoxicity, blood compatibility, and biodegradability. The shape of PLA-TPU/nano-Fe3O4 composites can be recovered by exposure to near-infrared light. These results collectively indicate that PLA-TPUs and their composites may have potential applications as intelligent flexible medical scaffolds for surgical and medical implantation equipment.
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Affiliation(s)
- Shaoyun He
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shikai Hu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China.,Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, Beijing 100029, China.,Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China
| | - Yaowen Wu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ruiheng Jin
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhihao Niu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Runguo Wang
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China.,Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, Beijing 100029, China.,Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China
| | - Jiajia Xue
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China.,Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, Beijing 100029, China.,Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China
| | - Sizhu Wu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China.,Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, Beijing 100029, China.,Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China
| | - Xiuying Zhao
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China.,Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, Beijing 100029, China.,Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China
| | - Liqun Zhang
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China.,Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, Beijing 100029, China.,Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China
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Worch J, Dove AP. Click Step-Growth Polymerization and E/ Z Stereochemistry Using Nucleophilic Thiol-yne/-ene Reactions: Applying Old Concepts for Practical Sustainable (Bio)Materials. Acc Chem Res 2022; 55:2355-2369. [PMID: 36006902 PMCID: PMC9454099 DOI: 10.1021/acs.accounts.2c00293] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Polymer sustainability is synonymous with "bioderived polymers" and the zeitgeist of "using renewable feedstocks". However, this sentiment does not adequately encompass the requirements of sustainability in polymers. In addition to recycling considerations and mechanical performance, following green chemistry principles also needs to be maximized to improve the sustainability of polymer synthesis. The synthetic cost (i.e., maximizing atom economy, reducing chemical hazards, and lowering energy requirements) of producing polymers should be viewed as equally important to the monomer source (biomass vs petrol platform chemicals). Therefore, combining the use of renewable feedstocks with efficient syntheses and green chemistry principles is imperative to delivering truly sustainable polymers. The high efficiency, atom economy, and single reaction trajectories that define click chemistry reactions position them as ideal chemical approaches to synthesize polymers in a sustainable manner while simultaneously expanding the structural scope of accessible polymers from sustainably sourced chemicals.Click step-growth polymerization using the thiol-yne Michael addition, a reaction first reported over a century ago, has emerged as an extremely mild and atom-efficient pathway to yield high-performance polymers with controllable E/Z stereochemistry along the polymer backbone. Building on studies of aromatic thiol-yne polymers, around 10 years ago our group began investigating the thiol-yne reaction for the stereocontrolled synthesis of alkene-containing aliphatic polyesters. Our early studies established a convenient path to high-molecular-weight (>100 kDa) E-rich or Z-rich step-growth polymers by judiciously changing the catalyst and/or reaction solvent. This method has since been adapted to synthesize fast-degrading polyesters, high-performance polyamides, and resilient hydrogel biomaterials. Across several systems, we have observed dramatic differences in material properties among polymers with different alkene stereochemistry.We have also explored the analogous thiol-ene Michael reaction to create high-performance poly(ester-urethanes) with precise E/Z stereochemistry. In contrast to the stereoselective thiol-yne polymerization, here the use of monomers with predefined E/Z (geometric) isomerism (arising from either alkenes or the planar rigidity of ring units) affords polymers with total control over stereochemistry. This advancement has enabled the synthesis of tough, degradable materials that are derived from sustainable monomer feedstocks. Employing isomers of sugar-derived isohexides, bicyclic rigid-rings possessing geometric isomerism, led to degradable polymers with fundamentally opposing mechanical behavior (i.e., plastic vs elastic) simply by adjusting the stereochemistry of the isohexide.In this Account, we feature our investigation of thiol-yne/-ene click step-growth polymers and efforts to establish structure-property relationships toward degradable materials with practical mechanical performance in the context of sustainable polymers and/or biomaterials. We have paid attention to installing and controlling geometric isomerism by using these click reactions, an overarching objective of our work in this research area. The exquisite control of geometric isomerism that is possible within polymer backbones, as enabled by convenient click chemistry reactions, showcases a powerful approach to creating multipurpose degradable polymers.
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7
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Shape memory elastomers: A review of synthesis, design, advanced manufacturing, and emerging applications. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5652] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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