Faculty of Engineering, Biomedical Engineering Department, Minia University, Minia, Egypt.
Faculty of Engineering, Biomedical Engineering Department, Helwan University, Helwan, Egypt.
Sci Rep. 2024 Apr 4;14(1):7912. doi: 10.1038/s41598-024-58194-5.
Recent advancements in the field of biomedical engineering have underscored the pivotal role of biodegradable materials in addressing the challenges associated with tissue regeneration therapies. The spectrum of biodegradable materials presently encompasses ceramics, polymers, metals, and composites, each offering distinct advantages for the replacement or repair of compromised human tissues. Despite their utility, these biomaterials are not devoid of limitations, with issues such as suboptimal tissue integration, potential cytotoxicity, and mechanical mismatch (stress shielding) emerging as significant concerns. To mitigate these drawbacks, our research collective has embarked on the development of protein-based composite materials, showcasing enhanced biodegradability and biocompatibility. This study is dedicated to the elaboration and characterization of an innovative suture fabricated from human serum albumin through an extrusion methodology. Employing a suite of analytical techniques-namely tensile testing, scanning electron microscopy (SEM), and thermal gravimetric analysis (TGA)-we endeavored to elucidate the physicochemical attributes of the engineered suture. Additionally, the investigation extends to assessing the influence of integrating biodegradable organic modifiers on the suture's mechanical performance. Preliminary tensile testing has delineated the mechanical profile of the Filament Suture (FS), delineating tensile strengths spanning 1.3 to 9.616 MPa and elongation at break percentages ranging from 11.5 to 146.64%. These findings illuminate the mechanical versatility of the suture, hinting at its applicability across a broad spectrum of medical interventions. Subsequent analyses via SEM and TGA are anticipated to further delineate the suture's morphological features and thermal resilience, thereby enriching our comprehension of its overall performance characteristics. Moreover, the investigation delves into the ramifications of incorporating biodegradable organic constituents on the suture's mechanical integrity. Collectively, the study not only sheds light on the mechanical and thermal dynamics of a novel suture material derived from human serum albumin but also explores the prospective enhancements afforded by the amalgamation of biodegradable organic compounds, thereby broadening the horizon for future biomedical applications.
近年来,生物医学工程领域的进展强调了可生物降解材料在解决组织再生治疗相关挑战方面的关键作用。可生物降解材料的范围目前包括陶瓷、聚合物、金属和复合材料,每种材料都为替代或修复受损的人体组织提供了独特的优势。尽管这些生物材料具有实用性,但它们并非没有局限性,例如组织整合不理想、潜在细胞毒性和机械不匹配(应力屏蔽)等问题成为重大关注点。为了减轻这些缺点,我们的研究团队着手开发基于蛋白质的复合材料,展示出增强的可生物降解性和生物相容性。本研究致力于通过挤出方法从人血清白蛋白中开发出一种新型缝合线,并对其进行阐述和特性分析。我们采用了一系列分析技术,包括拉伸测试、扫描电子显微镜(SEM)和热重分析(TGA),旨在阐明所设计缝合线的物理化学特性。此外,还研究了在缝合线中集成可生物降解的有机改性剂对其机械性能的影响。初步拉伸测试描绘了 Filament Suture(FS)的机械性能,拉伸强度范围为 1.3 至 9.616 MPa,断裂伸长率范围为 11.5 至 146.64%。这些结果说明了缝合线的机械多功能性,暗示了它在广泛的医疗干预中的适用性。预计通过 SEM 和 TGA 进行的后续分析将进一步描述缝合线的形态特征和热弹性,从而丰富我们对其整体性能特征的理解。此外,该研究还探讨了在缝合线中加入可生物降解的有机成分对其机械完整性的影响。总的来说,该研究不仅揭示了源自人血清白蛋白的新型缝合线材料的机械和热动力学,还探讨了可生物降解有机化合物的组合所带来的潜在增强效果,从而为未来的生物医学应用拓宽了视野。