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Li P, Xu T, Dang X, Shao L, Yan L, Yang X, Lin L, Ren L, Song R. Improving astaxanthin-loaded chitosan/polyvinyl alcohol/graphene oxide nanofiber membranes and their application in periodontitis. Int J Biol Macromol 2024; 258:128980. [PMID: 38151084 DOI: 10.1016/j.ijbiomac.2023.128980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/02/2023] [Accepted: 12/21/2023] [Indexed: 12/29/2023]
Abstract
Periodontitis is a chronic inflammatory disease primarily driven by host inflammation and plaque-induced immune responses. Controlling the host inflammatory response and improving the periodontal inflammatory microenvironment are crucial to promoting periodontal tissue regeneration. In this study, the blended nanofiber membranes previously prepared by our research group were improved, and we developed multifunctional chitosan/polyvinyl alcohol/graphene oxide/astaxanthin coaxial nanofiber membranes. Scanning electron microscopy showed that the prepared nanofibers had a smooth surface and a uniform diameter distribution. The mechanical property test results showed that the coaxial nanofiber membranes exhibited higher tensile strength compared to the blended nanofiber membranes, which increased from 4.50 ± 0.32 and 3.70 ± 0.45 MPa to 7.12 ± 0.22 and 5.62 ± 0.79 MPa respectively. Drug release studies indicated that the "shell-core" structure of coaxial nanofibers significantly reduced the initial burst release of astaxanthin (ASTA), with only 13.49 % and 10.71 % release in the first 24 h, and drug release lasted for over a week. Animal experiments confirmed that the coaxial nanofiber membranes loaded with ASTA promoted periodontal bone defect repair while inhibiting periodontal inflammation. In conclusion, the prepared coaxial nanofiber membranes are a promising sustained-release drug system for treating periodontitis.
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Affiliation(s)
- Pei Li
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, No. 143 Yiman Street, Nangang District, Harbin 150001, China
| | - Tao Xu
- School of Medicine Huaqiao University, No. 269 Chenghua North Road, Quanzhou 362000, China
| | - Xuan Dang
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, No. 143 Yiman Street, Nangang District, Harbin 150001, China
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Linlin Yan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xiaobin Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Lexun Lin
- Department of Pathogenic Microbiology, School of Basic Medical Sciences, Harbin Medical University, No. 157 Baojian Street, Nangang District, Harbin 150081, China
| | - Liping Ren
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, No. 143 Yiman Street, Nangang District, Harbin 150001, China
| | - Rong Song
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, No. 143 Yiman Street, Nangang District, Harbin 150001, China.
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Wu MY, Huang SW, Kao IF, Yen SK. The Preparation and Characterization of Chitosan/Calcium Phosphate Composite Microspheres for Biomedical Applications. Polymers (Basel) 2024; 16:167. [PMID: 38256966 PMCID: PMC10820865 DOI: 10.3390/polym16020167] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/27/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
In this study, we successfully prepared porous composite microspheres composed of hydroxyapatite (HAp), di-calcium phosphate di-hydrated (DCPD), and chitosan through the hydrothermal method. The chitosan played a crucial role as a chelating agent to facilitate the growth of related calcium phosphates. The synthesized porous composite microspheres exhibit a specific surface area of 38.16 m2/g and a pore volume of 0.24 cm3/g, with the pore size ranging from 4 to 100 nm. Given the unique properties of chitosan and the exceptional porosity of these composite microspheres, they may serve as carriers for pharmaceuticals. After being annealed, the chitosan transforms into a condensed form and the DCPD transforms into Ca2P2O7 at 300 °C. Then, the Ca2P2O7 initially combines with HAp to transform into β tricalcium phosphate (β-TCP) at 500 °C where the chitosan is also completely combusted. Finally, the microspheres are composed of Ca2P2O7, β-TCP, and HAp, also making them suitable for applications such as injectable bone graft materials.
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Affiliation(s)
- Meng-Ying Wu
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan; (M.-Y.W.); (S.-W.H.)
- Department of Orthopedics, National Defense Medical Center, Taipei 114, Taiwan
- Department of Orthopedics, Taichung Armed Forces General Hospital, Taichung 404, Taiwan
| | - Shih-Wei Huang
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan; (M.-Y.W.); (S.-W.H.)
| | - I-Fang Kao
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan; (M.-Y.W.); (S.-W.H.)
| | - Shiow-Kang Yen
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan; (M.-Y.W.); (S.-W.H.)
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