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Zhu Y, Wang Z, Chen Z, Xin X, Gan W, Lai H, Lin C. Highly Stretchable, Biodegradable, and Recyclable Green Electronic Substrates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305181. [PMID: 37699749 DOI: 10.1002/smll.202305181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/22/2023] [Indexed: 09/14/2023]
Abstract
As a steady stream of electronic devices being discarded, a vast amount of electronic substrate waste of petroleum-based nondegradable polymers is generated, raising endless concerns about resource depletion and environmental pollution. With coupled reagent (CR)-grafted artificial marble waste (AMW@CR) as functional fillers, polylactic acid (PLA)-based highly stretchable biodegradable green composite (AMW@CR-SBGC) is prepared, with elongation at break up to more than 250%. The degradation mechanism of AMW@CR-SBGC is deeply revealed. AMW@CR not only contributed to the photodegradation of AMW@CR-SBGC but also significantly promoted the water degradation of AMW@CR-SBGC. More importantly, AMW@CR-SBGC showed great potential as sustainable green electronic substrates and AMW@CR-SBGC-based electronic skin can simulate the perception of human skin to strain signals. The outstanding programmable degradability, recyclability, and reusability of AMW@CR-SBGC enabled its application in transient electronics. As the first demonstration of artificial marble waste in electronic substrates, AMW@CR-SBGC killed three birds with one stone in terms of waste resourcing, e-waste reduction, and saving nonrenewable petroleum resources, opening up vast new opportunities for green electronics applications in areas such as health monitoring, artificial intelligence, and security.
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Affiliation(s)
- Yan Zhu
- School of Astronautics, Harbin Institute of Technology, Harbin, 150001, P. R. China
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Zhongmin Wang
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
| | - Zhenming Chen
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou, 542899, P. R. China
| | - Xiaozhou Xin
- School of Astronautics, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Weijiang Gan
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
| | - Huajun Lai
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
| | - Cheng Lin
- School of Astronautics, Harbin Institute of Technology, Harbin, 150001, P. R. China
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2
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Li D, Chen Y, Sun L, Zhou J, Dong L, Ren J. The Role of Interchain Force and/or Chain Entanglement in the Melt Strength and Ductility of PLA-Based Materials. Chem Asian J 2023; 18:e202300577. [PMID: 37466153 DOI: 10.1002/asia.202300577] [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: 07/02/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
As an eco-friendly material, PLA was a desirable alternative to polyethylene and polypropylene films due to its biodegradability. The preferable melt strength of PLA-based materials was a key factor in ensuring its processing using extrusion blow. This paper focuses on the influence of interchain force and/or chain entanglement on the melt strength and ductility of PLA-based materials in recent years. In addition, the preparation of PLA-based materials via physical blending or reactive processing was also summarized. The blending of PLA with a flexible heteropolymer, driven by the interchain force and/or chain entanglements, were characterized as a practicable method for toughening PLA-based materials. Also, the restructuring of PLA chains, by branching based on chain entanglement, was suitable for increasing chain entanglements in PLA matrix, yielding satisfactory melt strength and ductility. This review aims to elucidate the relationship between interchain forces and/or entanglement with the melt strength and ductility of PLA-based materials. An essential and systematic understanding of the tailoring melt strength and rheological properties of PLA by interchain forces and/or entanglement was apt to improve and perfect the processing technology of the extrusion blow, and consequently improve the tensile strength and toughness of PLA films.
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Affiliation(s)
- Deling Li
- College of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, China
| | - Ying Chen
- College of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, China
| | - Limei Sun
- College of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, China
| | - Jun Zhou
- College of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, China
| | - Liming Dong
- College of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, China
| | - Jizhen Ren
- College of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, China
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3
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Al-Shalawi FD, Mohamed Ariff AH, Jung DW, Mohd Ariffin MKA, Seng Kim CL, Brabazon D, Al-Osaimi MO. Biomaterials as Implants in the Orthopedic Field for Regenerative Medicine: Metal versus Synthetic Polymers. Polymers (Basel) 2023; 15:2601. [PMID: 37376247 DOI: 10.3390/polym15122601] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Patients suffering bone fractures in different parts of the body require implants that will enable similar function to that of the natural bone that they are replacing. Joint diseases (rheumatoid arthritis and osteoarthritis) also require surgical intervention with implants such as hip and knee joint replacement. Biomaterial implants are utilized to fix fractures or replace parts of the body. For the majority of these implant cases, either metal or polymer biomaterials are chosen in order to have a similar functional capacity to the original bone material. The biomaterials that are employed most often for implants of bone fracture are metals such as stainless steel and titanium, and polymers such as polyethene and polyetheretherketone (PEEK). This review compared metallic and synthetic polymer implant biomaterials that can be employed to secure load-bearing bone fractures due to their ability to withstand the mechanical stresses and strains of the body, with a focus on their classification, properties, and application.
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Affiliation(s)
- Faisal Dakhelallah Al-Shalawi
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Azmah Hanim Mohamed Ariff
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Research Center Advanced Engineering Materials and Composites (AEMC), Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Dong-Won Jung
- Faculty of Applied Energy System, Major of Mechanical Engineering, Jeju National University, 102 Jejudaehak-ro, Jeju-si 63243, Republic of Korea
| | - Mohd Khairol Anuar Mohd Ariffin
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Collin Looi Seng Kim
- Department of Orthopaedic, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Dermot Brabazon
- Advanced Manufacturing Research Centre, and Advanced Processing Technology Research Centre, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, D09 V209 Dublin 9, Ireland
| | - Maha Obaid Al-Osaimi
- Department of Microbiology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
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4
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He W, Ye L, Coates P, Caton-Rose F, Zhao X. Construction of fully biodegradable poly(L-lactic acid)/poly(D-lactic acid)-poly(lactide-co-caprolactone) block polymer films: Viscoelasticity, processability and flexibility. Int J Biol Macromol 2023; 236:123980. [PMID: 36898455 DOI: 10.1016/j.ijbiomac.2023.123980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023]
Abstract
Development of biodegradable polymer films is essential for sustainable energy conservation and ecological protection. In this work, to improve the processability and toughness of poly(lactic acid) (PLA) films, poly(lactide-co-caprolactone) (PLCL) segments were introduced into poly(L-lactic acid) (PLLA)/poly(D-lactic acid) (PDLA) chains via chain branching reactions during reactive processing, and fully biodegradable/flexible PLLA/D-PLCL block polymer with long-chain branches and stereocomplex (SC) crystalline structure was prepared. Compared with neat PLLA, PLLA/D-PLCL exhibited much higher complex viscosity/storage modulus, lower tanδ values in terminal region and obvious strain-hardening behavior. Through biaxial drawing, PLLA/D-PLCL films were prepared, which showed improved uniformity and non-preferred orientation. With increasing draw ratio, the total crystallinity (Xc) and Xc for SC crystal both increased. By introduction of PDLA, the two phases of PLLA and PLCL penetrated and entangled with each other, and the phase structure transformed from "sea-island" structure to "co-continuous network" structure, which was beneficial for exerting the toughening effect of flexible PLCL molecules on PLA matrix. The tensile strength and elongation at break of PLLA/D-PLCL films increased from 51.87 MPa and 28.22 % of neat PLLA film to 70.82 MPa and 148.28 %. This work provided a new strategy for developing fully biodegradable polymer films with high performance.
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Affiliation(s)
- Wenjun He
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China.
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5
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Wen Y, Li D, Yang J, Yan G, Wang X, Liu S, Zhang G. Semi-Aromatic Polyether Amide Thermoplastic Elastomer: Nucleophilic Substitution Polymerization and Properties. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Yanze Wen
- Institute of Materials Science and Technology, Analysis and Testing Center, Sichuan University, Chengdu 610064, P. R. China
| | - Dongsheng Li
- Shaanxi Engineering Research Center of Special Sealing Technology, Xi’an Aerospace Propulsion Institute, Xi’an 710100, P. R. China
| | - Jie Yang
- Institute of Materials Science and Technology, Analysis and Testing Center, Sichuan University, Chengdu 610064, P. R. China
- State Key Laboratory of Polymer Materials Engineering (Sichuan University), Chengdu 610065, P.R. China
| | - Guangming Yan
- Institute of Materials Science and Technology, Analysis and Testing Center, Sichuan University, Chengdu 610064, P. R. China
| | - Xiaojun Wang
- Institute of Materials Science and Technology, Analysis and Testing Center, Sichuan University, Chengdu 610064, P. R. China
| | - Suilin Liu
- Institute of Materials Science and Technology, Analysis and Testing Center, Sichuan University, Chengdu 610064, P. R. China
| | - Gang Zhang
- Institute of Materials Science and Technology, Analysis and Testing Center, Sichuan University, Chengdu 610064, P. R. China
- State Key Laboratory of Polymer Materials Engineering (Sichuan University), Chengdu 610065, P.R. China
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6
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Yang W, Wu T, Chen Y, Huang Q, Ao J, Ming M, Gao X, Li Z, Chen B. Bionic structure and blood compatibility of highly oriented homo-epitaxially crystallized poly(l-lactic acid). Int J Biol Macromol 2023; 227:749-761. [PMID: 36563816 DOI: 10.1016/j.ijbiomac.2022.12.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
A highly oriented poly(l-lactic acid) (PLLA), with a blood vessel-like biomimetic structure, was fabricated using solid-phase hot drawing technology and homo-epitaxial crystallization to improve the mechanical properties and biocompatibility of PLLA. Long chain branched PLLA (LCB-PLLA) was prepared through a two-step ring-opening reaction, and a consequent draw as high as 1000 % was achieved during the hot drawing. The modulus and tensile strength were found to have increased through the formation of oriented shish-kebab like crystals along the drawing direction during processing. Furthermore, PLLA nano-lamellae were formed on the surface of the oriented plates via the introduction of homo-epitaxial crystallization. The high degree of orientation and epitaxial crystallization substantially enhanced the biocompatibility of the PLLA by prolonging clotting time, decreasing the rate of hemolysis, and increasing the cell growth and reproduction of the osteoblasts.
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Affiliation(s)
- Wenchao Yang
- School of Material Science and Engineering of Xihua University, Chengdu 610039, China
| | - Ting Wu
- School of Material Science and Engineering of Xihua University, Chengdu 610039, China
| | - Yueling Chen
- School of Material Science and Engineering of Xihua University, Chengdu 610039, China
| | - Qingyi Huang
- School of Material Science and Engineering of Xihua University, Chengdu 610039, China
| | - Jinqing Ao
- School of Material Science and Engineering of Xihua University, Chengdu 610039, China
| | - Mei Ming
- Dechang Jinfeng Rubber Co., Ltd., Dechang County, 615500, China
| | - Xiaoyan Gao
- Sichuan Institute for Drug Control, Chengdu 610017, China
| | - Zhengqiu Li
- School of Material Science and Engineering of Xihua University, Chengdu 610039, China.
| | - Baoshu Chen
- School of Material Science and Engineering of Xihua University, Chengdu 610039, China.
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7
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Luo C, Liu S, Luo W, Wang J, He H, Chen C, Xiao L, Liu C, Li Y. Fabrication of PLCL Block Polymer with Tunable Structure and Properties for Biomedical Application. Macromol Biosci 2023; 23:e2200507. [PMID: 36645702 DOI: 10.1002/mabi.202200507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/26/2022] [Indexed: 01/17/2023]
Abstract
Biodegradable materials are pivotal in the biomedical field, where how to precisely control their structure and performance is critical for their translational application. In this study, poly(L-lactide-b-ε-caprolactone) block copolymers (bPLCL) with well-defined segment structure are obtained by a first synthesis of poly(ε-caprolactone) soft block, followed by ring opening polymerization of lactide to form poly(L-lactide acid) hard block. The pre-polymerization allows for fabrication of bPLCL with the definite compositions of soft/hard segment while preserving the individual segment of their special soft or hard segment. These priorities make the bPLCL afford biodegradable polymer with better mechanical and biodegradable controllability than the random poly(L-lactide-co-ε-caprolactone) (rPLCL) synthesized via traditional one-pot polymerization. 10 mol% ε-caprolactone introduction can result in a formation of an elastic polymer with elongation at break of 286.15% ± 55.23%. Also, bPLCL preserves the unique crystalline structure of the soft and hard segments to present a more sustainable biodegradability than the rPLCL. The combinative merits make the pre-polymerization technique a promising strategy for a scalable production of PLCL materials for potential biomedical application.
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Affiliation(s)
- Chenmin Luo
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Shengyang Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Wei Luo
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
| | - Jing Wang
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hongyan He
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Can Chen
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Lan Xiao
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology (QUT), 60 Musk Avenue, Kelvin Grove, QLD 4059, Brisbane, Queensland, 4000, Australia.,The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology (QUT), 60 Musk Avenue, Kelvin Grove, QLD 4059, Brisbane, Queensland, 4000, Australia
| | - Changsheng Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China.,Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
| | - Yulin Li
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China.,Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
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8
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Chang FL, Hu B, Huang WT, Chen L, Yin XC, Cao XW, He GJ. Improvement of rheology and mechanical properties of PLA/PBS blends by in-situ UV-induced reactive extrusion. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Jing Z, Huang X, Liu X, Liao M, Li Y. Poly(lactide)‐based supramolecular polymers driven by self‐complementary quadruple hydrogen bonds: construction, crystallization and mechanical properties. POLYM INT 2022. [DOI: 10.1002/pi.6445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhanxin Jing
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Xiaolan Huang
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Xingqi Liu
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Mingneng Liao
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Yong Li
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
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10
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Sharma D, Dhingra S, Banerjee A, Saha S, Bhattacharyya J, Satapathy BK. Designing suture-proof cell-attachable copolymer-mediated and curcumin- β-cyclodextrin inclusion complex loaded aliphatic polyester-based electrospun antibacterial constructs. Int J Biol Macromol 2022; 216:397-413. [DOI: 10.1016/j.ijbiomac.2022.06.204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 12/16/2022]
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11
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Wang W, Liu Y, Ye L, Coates P, Caton-Rose F, Zhao X. Biocompatibility improvement and controlled in vitro degradation of poly (lactic acid)-b-poly(lactide-co-caprolactone) by formation of highly oriented structure for orthopedic application. J Biomed Mater Res B Appl Biomater 2022; 110:2480-2493. [PMID: 35674722 DOI: 10.1002/jbm.b.35106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/25/2022] [Accepted: 05/20/2022] [Indexed: 12/21/2022]
Abstract
Poly (lactic acid) (PLA) has been proposed as a promising orthopedic implant material, whereas insufficient mechanical strength, unsatisfied biocompatibility and inappropriate degradation rate restrict its further application. In this work, self-reinforced poly (lactic acid)-b-poly(lactide-co-caprolactone) (PLA-b-PLCL) block copolymer with long-chain branches was fabricated through two-stage orientation. Compared with smooth and hydrophobic PLA surface, the surface of PLA-b-PLCL presented micro-phase separated structure with improved hydrophilicity, and cells seeded on it showed improved adhesion/proliferation and high alkaline phosphatase (ALP) activity. After the 1st stage orientation at temperature higher than Tg1 (glass transition temperature of PLA phase), the amount of CH3 and CO groups on surface of PLA-b-PLCL increased, while "groove-ridge" structure formed, resulting in enhancement of surface hydrophobicity. After the 2nd stage orientation at Tg1 ~ Tg2 (glass transition temperature of PLCL phase), surface hydrophobicity/amount of CO groups further increased and "groove-ridge" structure became more significant. Due to suitable wettability and enhanced material-cell mechanical interlocking, cell proliferation/ALP activity were improved and a continuous cell layer formed on sample surface. During in vitro degradation in phosphate buffered saline solution, by introduction of PLCL segments, the crystallinity decreased and solution absorption increased, resulting in a rapid deterioration of mechanical properties. After the 1st stage orientation, a dense microfibrillar structure with high crystallinity formed, which hindered diffusion of solution and delay hydrolytic degradation. After the 2nd stage orientation, PLCL segments were arranged more closely, resulting in a further inhibition of degradation, which was helpful for controlling the strength decay rate of PLA as bone fixation materials.
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Affiliation(s)
- Wuyou Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Yalong Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
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12
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Yuan Z, Liu Y, Ye L, Coates P, Caton-Rose F, Zhao X. Structure Evolution of Highly Oriented Poly(lactic acid)-b-poly(lactide-co-caprolactone) Block Copolymer during Two-Stage Solid Phase Hot Drawing. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Zun Yuan
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yalong Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, United Kingdom
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, United Kingdom
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
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13
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Zhao X, Liu Y, Coates P, Caton-Rose F, Ye L. Triple-shape memory effect of long-chain branched Poly(lactic acid)-b-poly(lactide-co-caprolactone) and its controllable shape recovery as self-fastening smart bone fixture. POLYMER 2022. [DOI: 10.1016/j.polymer.2021.124421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Zhao X, Li J, Liu J, Zhou W, Peng S. Recent progress of preparation of branched poly(lactic acid) and its application in the modification of polylactic acid materials. Int J Biol Macromol 2021; 193:874-892. [PMID: 34728305 DOI: 10.1016/j.ijbiomac.2021.10.154] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/30/2021] [Accepted: 10/20/2021] [Indexed: 01/01/2023]
Abstract
Poly (lactic acid) (PLA) with branched structure has abundant terminal groups, high melt strength, good rheological properties, and excellent processability; it is a new research and application direction of PLA materials. This study mainly summarizes the molecular structure design, preparation methods, basic properties of branched PLA, and its application in modified PLA materials. The structure and properties of branched PLA prepared by ring-opening polymerization of monomer, functional group polycondensation, and chain extender in the processing process were introduced. The research progress of in situ formation of branched PLA by initiators, multifunctional monomers/additives through dynamic vulcanization, and irradiation induction was described. The effect of branched PLA on the structure and properties of linear PLA materials was analyzed. The role of branched PLA in improving the crystallization behavior, phase morphology, foaming properties, and mechanical properties of linear PLA materials was discussed. At the same time, its research progress in biomedicine and tissue engineering was analyzed. Branched PLA has excellent compatibility with PLA, which has important research value in regulating the structure and properties of PLA materials.
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Affiliation(s)
- Xipo Zhao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China.
| | - Juncheng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Jinchao Liu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Weiyi Zhou
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Shaoxian Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China.
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15
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Amukarimi S, Ramakrishna S, Mozafari M. Smart biomaterials—A proposed definition and overview of the field. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021. [DOI: 10.1016/j.cobme.2021.100311] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Heidari BS, Chen P, Ruan R, Davachi SM, Al-Salami H, De Juan Pardo E, Zheng M, Doyle B. A novel biocompatible polymeric blend for applications requiring high toughness and tailored degradation rate. J Mater Chem B 2021; 9:2532-2546. [PMID: 33660730 DOI: 10.1039/d0tb02971h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Finding the right balance in mechanical properties and degradation rate of biodegradable materials for biomedical applications is challenging, not only at the time of implantation but also during biodegradation. For instance, high elongation at break and toughness with a mid-term degradation rate are required for tendon scaffold or suture application, which cannot be found in each alpha polyester individually. Here, we hypothesise that blending semi-crystalline poly(p-dioxanone) (PDO) and poly(lactide-co-caprolactone) (LCL) in a specific composition will enhance the toughness while also enabling tailored degradation times. Hence, blends of PDO and LCL (PDO/LCL) were prepared in varying concentrations and formed into films by solvent casting. We thoroughly characterised the chemical, thermal, morphological, and mechanical properties of the new blends before and during hydrolytic degradation. Cellular performance was determined by seeding mouse fibroblasts onto the samples and culturing for 72 hours, before using proliferation assays and confocal imaging. We found that an increase in LCL content causes a decrease in hydrolytic degradation rate, as indicated by induced crystallinity, surface and bulk erosions, and tensile properties. Interestingly, the noncytotoxic blend containing 30% PDO and 70% LCL (PDO3LCL7) resulted in small PDO droplets uniformly dispersed within the LCL matrix and demonstrated a tailored degradation rate and toughening behaviour with a notable strain-hardening effect reaching 320% elongation at break; over 3 times the elongation of neat LCL. In summary, this work highlights the potential of PDO3LCL7 as a biomaterial for biomedical applications like tendon tissue engineering or high-performance absorbable sutures.
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Affiliation(s)
- Behzad Shiroud Heidari
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and the UWA Centre for Medical Research, The University of Western Australia, Perth, Australia.
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Naseem R, Tzivelekis C, German MJ, Gentile P, Ferreira AM, Dalgarno K. Strategies for Enhancing Polyester-Based Materials for Bone Fixation Applications. Molecules 2021; 26:molecules26040992. [PMID: 33668466 PMCID: PMC7917714 DOI: 10.3390/molecules26040992] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/09/2021] [Accepted: 02/09/2021] [Indexed: 11/16/2022] Open
Abstract
Polyester-based materials are established options, regarding the manufacturing of bone fixation devices and devices in routine clinical use. This paper reviews the approaches researchers have taken to develop these materials to improve their mechanical and biological performances. Polymer blending, copolymerisation, and the use of particulates and fibre bioceramic materials to make composite materials and surface modifications have all been studied. Polymer blending, copolymerisation, and particulate composite approaches have been adopted commercially, with the primary focus on influencing the in vivo degradation rate. There are emerging opportunities in novel polymer blends and nanoscale particulate systems, to tune bulk properties, and, in terms of surface functionalisation, to optimise the initial interaction of devices with the implanted environment, offering the potential to improve the clinical performances of fracture fixation devices.
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Affiliation(s)
- Raasti Naseem
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
- Correspondence:
| | - Charalampos Tzivelekis
- School of Dental Sciences, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (C.T.); (M.J.G.)
| | - Matthew J. German
- School of Dental Sciences, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (C.T.); (M.J.G.)
| | - Piergiorgio Gentile
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
| | - Ana M. Ferreira
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
| | - Kenny Dalgarno
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
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High performance branched poly(lactide) induced by reactive extrusion with low-content cyclic organic peroxide and multifunctional acrylate coagents. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122867] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kim T, See CW, Li X, Zhu D. Orthopedic implants and devices for bone fractures and defects: Past, present and perspective. ENGINEERED REGENERATION 2020. [DOI: 10.1016/j.engreg.2020.05.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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