1
|
Luo K, Wang L, Tang J, Zeng X, Chen X, Zhang P, Zhou S, Li J, Zuo Y. Enhanced biomineralization of shape memory composite scaffolds from citrate functionalized amorphous calcium phosphate for bone repair. J Mater Chem B 2021; 9:9191-9203. [PMID: 34698324 DOI: 10.1039/d1tb01554k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Traditional shape memory polymers (SMPs) could avoid large volume trauma during implantation; however, for bone repair, scaffolds with high porosity and biomineralization are essential to promote bone regeneration. A novel porous composite scaffold with high biomineralization activity was developed by sequential gas foaming and a freeze-drying method. The results showed that the cross-linked block structure of the polymer matrix presented excellent shape memory properties, and osteogenesis was promoted by citrate functionalized amorphous calcium phosphate (CCACP). CCACP improved the mechanical strength of the scaffold, and the synergistic effect of CCACP and PEG promotes hydrophilicity and further promoted cell adhesion. Bending experiments indicated that the shape-memory effect of the scaffolds could be varied by varying the CCACP content. In addition, hydroxyapatite deposition was sped up as CCACP accelerated the mineralization of the scaffolds. Moreover, the result of the CCK-8 assessment suggested that composite scaffolds exhibited high biocompatibility, and the cells extended out abundant filopodia to adhere onto the scaffolds. In rat bone defect models, the obtained scaffolds promoted new bone formation compared to the control group. The developed composite scaffolds show potential for minimally invasive bone repair application.
Collapse
Affiliation(s)
- Kun Luo
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China.
| | - Li Wang
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China.
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jiajing Tang
- Research Center for Nano-biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Xiyang Zeng
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China.
| | - Xiaohu Chen
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China.
| | - Peicong Zhang
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China.
| | - Shiyi Zhou
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China.
| | - Junfeng Li
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China.
| | - Yi Zuo
- Research Center for Nano-biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| |
Collapse
|
2
|
Jurek-Suliga J, Grobelny Z, Golba S, Okła H, Bednarczyk K. New Star-Shaped Polyether-Pentols (PEPOs) for Fabrication of Crosslinked Polyurethanes-Synthesis and Characterization. Polymers (Basel) 2021; 13:2150. [PMID: 34209923 PMCID: PMC8271570 DOI: 10.3390/polym13132150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/24/2021] [Accepted: 06/26/2021] [Indexed: 11/16/2022] Open
Abstract
Polyether-pentols (PEPOs) were synthesized from glycidyl ethers and butylene oxide with the application of tripotassium salts of 2,2,6,6-tetrakis(hydroxymethyl)cyclohexanol (HMCH) activated 18C6 for ring-opening polymerization (ROP). The construction of the applied initiator system reflects the ability of crown ether to influence the degree of ion-pair separation with an increased activating effect. As a result formation of bi- or trimodal polymers was observed with molar masses in the range of (Mn = 1200-6000). The observed multi-fraction composition is prescribed to the formation of ionic aggregates with different reactivities during polymerization. The mechanism of the studied processes is discussed. The obtained PEPOs served for a crosslinked PUR synthesis, for which the hydrogen bond index for coupling of hard segments was calculated. Additionally, the range of phase separation was calculated that was higher for PUR-containing aromatic rings as the substituent.
Collapse
Affiliation(s)
- Justyna Jurek-Suliga
- Institute of Engineering Materials, University of Silesia, 41-500 Chorzow, Poland; (S.G.); (H.O.)
| | - Zbigniew Grobelny
- Institute of Chemistry, University of Silesia, 40-007 Katowice, Poland; (Z.G.); (K.B.)
| | - Sylwia Golba
- Institute of Engineering Materials, University of Silesia, 41-500 Chorzow, Poland; (S.G.); (H.O.)
| | - Hubert Okła
- Institute of Engineering Materials, University of Silesia, 41-500 Chorzow, Poland; (S.G.); (H.O.)
| | - Katarzyna Bednarczyk
- Institute of Chemistry, University of Silesia, 40-007 Katowice, Poland; (Z.G.); (K.B.)
| |
Collapse
|
3
|
Nanocrystallization-locked Network of Poly(styrene-b-isobutylene-b-styrene)-g-Polytetrahydrofuran Block Graft Copolymer. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2536-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
4
|
Luo K, Wang L, Chen X, Zeng X, Zhou S, Zhang P, Li J. Biomimetic Polyurethane 3D Scaffolds Based on Polytetrahydrofuran Glycol and Polyethylene Glycol for Soft Tissue Engineering. Polymers (Basel) 2020; 12:polym12112631. [PMID: 33182432 PMCID: PMC7697348 DOI: 10.3390/polym12112631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 12/15/2022] Open
Abstract
In this study, a novel polyurethane porous 3D scaffold based on polyethylene glycol (PEG) and polytetrahydrofuran glycol (PTMG) was developed by in situ polymerization and freeze drying. Aliphatic hexamethylene diisocyanate (HDI) as a nontoxic and safe agent was adopted to produce the rigid segment in polyurethane polymerization. The chemical structure, macrostructure, and morphology—as well as mechanical strength of the scaffolds—were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), and tensile tests. The results show that the HDI can react mildly with hydroxyl (–OH) groups of PEG and PTMG, while gas foaming action caused by the release of CO2 occurred simultaneously in the reactive process, resulting in a uniform porous structure of PU scaffold. Moreover, the scaffolds were soaked in water and freeze dried to obtain higher porosity and more interconnective microstructures. The scaffolds have a porosity of over 70% and pore size from 100 to 800 μm. The mechanical properties increased with increasing PEG content, while the hydrophilicity increased as well. After immersion in simulated body fluid (SBF), the scaffolds presented a stable surface structure. The gas foaming/freezing drying process is an excellent method to prepare skin tissue engineering scaffold from PTMG/PEG materials with high porosity and good inter connectivity.
Collapse
Affiliation(s)
| | - Li Wang
- Correspondence: (L.W.); (S.Z.); (J.L.)
| | | | | | | | | | | |
Collapse
|
5
|
Jikei M, Sato A, Ha LT, Takeda M, Matsumoto K, Sugimoto M, Sato H, Matsuba G. Synthesis and properties of long-chain-branched poly(aryl ether sulfone)-poly(tetrahydrofuran) multiblock copolymers. Polym J 2019. [DOI: 10.1038/s41428-019-0261-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
6
|
Synthesis, characterization and applications of nano-Ag-tagged poly(ε-caprolactone-block-tetrahydrofuran). Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02861-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
7
|
Anbarasan R, Jeyapriya M, Meenarathi B, Tung KL. Low temperature splinting activity and catalytic behavior of nano Ag doped sulphamicacid bridged diblock copolymer. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4310] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- R. Anbarasan
- Department of Chemical Engineering; National Taiwan University; Taipei 10617 Taiwan, ROC
| | - M. Jeyapriya
- Department of Polymer Technology; Kamaraj College of Engineering and Technology; Virudhunagar 626 001 Tamilnadu India
| | - B. Meenarathi
- Department of Polymer Technology; Kamaraj College of Engineering and Technology; Virudhunagar 626 001 Tamilnadu India
| | - Kuo-Lun Tung
- Department of Chemical Engineering; National Taiwan University; Taipei 10617 Taiwan, ROC
| |
Collapse
|
8
|
Akiyama T, Ushio A, Itoh Y, Kawaguchi Y, Matsumoto K, Jikei M. Synthesis and healing properties of poly(arylether sulfone)-poly(alkylthioether) multiblock copolymers containing disulfide bonds. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28736] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Takayoshi Akiyama
- Department of Materials Science; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi Akita 010-8502 Japan
| | - Akira Ushio
- Department of Materials Science; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi Akita 010-8502 Japan
| | - Yoshitaka Itoh
- Department of Materials Science; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi Akita 010-8502 Japan
| | - Yuya Kawaguchi
- Department of Materials Science; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi Akita 010-8502 Japan
| | - Kazuya Matsumoto
- Department of Materials Science; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi Akita 010-8502 Japan
| | - Mitsutoshi Jikei
- Department of Materials Science; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi Akita 010-8502 Japan
| |
Collapse
|