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Della Sala F, Malle BM, Ambrosio L, Borzacchiello A. Fermentation-Derived Albumin-Based Hydrogels for Tissue Adhesion Applications. Polymers (Basel) 2023; 15:polym15112530. [PMID: 37299328 DOI: 10.3390/polym15112530] [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: 05/05/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Currently, most of the clinically available surgical glues and sealants lack elasticity, good adhesion and biocompatibility properties. Hydrogels as tissue adhesives have received extensive attention for their tissue-mimicking features. Here, a novel surgical glue hydrogel based on a fermentation-derived human albumin (rAlb) and biocompatible crosslinker for tissue-sealant applications has been developed. In order to reduce the risks of viral transmission diseases and an immune response, Animal-Free Recombinant Human Albumin from the saccharomyces yeast strain was used. A more biocompatible crosslinking agent, 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC), was used and compared with glutaraldehyde (GA). The design of crosslinked albumin-based adhesive gels was optimized by varying the albumin concentration, the mass ratio between albumin and the crosslinking agent as well as the crosslinker type. Tissue sealants were characterized in terms of mechanical (tensile and shear), adhesive and in vitro biocompatibility properties. The results indicated that the mechanical and adhesive properties improved as the albumin concentration increased and the mass ratio between albumin and crosslinker decreased. Moreover, the EDC-crosslinked albumin gels have better biocompatibility properties than GA-crosslinked glues.
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Affiliation(s)
- Francesca Della Sala
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Viale J.F. Kennedy 54, 80125 Naples, Italy
| | | | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Viale J.F. Kennedy 54, 80125 Naples, Italy
| | - Assunta Borzacchiello
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Viale J.F. Kennedy 54, 80125 Naples, Italy
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Li W, Yuan F, Bai J, Cheng J, Li H, Zheng J, Bai W, Lyu P. In vivo evaluation of bending strengths and degradation rates of different magnesium pin designs for oral stapler. J Appl Biomater Funct Mater 2020; 18:2280800019836400. [PMID: 33372827 DOI: 10.1177/2280800019836400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Magnesium alloys have been potential biodegradable implants in the areas of bone, cardiovascular system, gastrointestinal tract, and so on. The purpose of this study is to evaluate Mg-2Zn alloy degradation as a potential suture material. The study included Sprague-Dawley (SD) rats in vivo. In 24 male SD rats, tests in the leg muscle were conducted using traditional surgical incision and insertion of magnesium alloys of different designs into the tissue. The material degradation topography, elemental composition, and strength of the pins were analyzed. This paper explores magnesium pins with different cross-sectional shapes and diameters to establish a suitable pin diameter and shape for use as an oral stapler, which must have a good balance of degradation rate and strength. The results showed there were good bending strengths over different degradation periods in groups with diameters of 0.8 mm and 0.5 mm, and no significantly different bending strength between the groups of triangle and round cross-section shapes with same diameter of 0.3 mm, although the degradation rate still needs to be improved.
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Affiliation(s)
- Wenjun Li
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, China.,Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing, China
| | - Fusong Yuan
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, China.,Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing, China
| | - Jing Bai
- School of Materials Science and Engineering, Southeast University, Nanjing, China
| | - Junyao Cheng
- School of Materials Science and Engineering, Southeast University, Nanjing, China
| | - Hongxiang Li
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, China
| | - Jianqiao Zheng
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, China.,Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing, China
| | - Wei Bai
- Dental Medical Devices Testing Center, Peking University School of Stomatology, Beijing, China
| | - Peijun Lyu
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, China.,Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing, China
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