通过整合辅助结构和传统结构增强多孔支架的机械性能

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2024-11-06 DOI:10.1016/j.matlet.2024.137675

Juhyun Kang , Masoud Shirzad , Ji Min Seok , Won-Kyo Jung , Seung Yun Nam

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引用次数: 0

摘要

增材制造技术为临床前和临床应用中使用各种生物材料制造各种多孔结构带来了革命性的变化。然而，结合了传统结构和辅助结构的混合结构尽管在生物医学应用中具有巨大潜力，却很少被探索。本研究旨在设计各种混合辅助结构和传统结构，并利用多孔复合聚己内酯/羟基磷灰石（PCL/HA）生物材料展示其机械性能。我们的研究结果表明，与传统结构相比，新提出的结构可使杨氏模量、屈服应力和能量吸收分别提高98.64%、99.27%和98.61%。此外，所有制成的支架都显示出超过 90% 的孔隙率，确保了它们在组织工程应用中的适用性。

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Mechanical enhancement of porous scaffolds through integration of auxetic and conventional structures

Additive manufacturing has revolutionized the fabrication of various porous structures using diverse biomaterials for preclinical and clinical applications. However, hybrid structures combining conventional and auxetic structures have been seldom explored, despite their immense potential for biomedical applications. This study aims to design various hybrid auxetic and conventional structures and demonstrate their mechanical properties using porous composite polycaprolactone/hydroxyapatite (PCL/HA) biomaterials. Our findings reveal that newly suggested structures can enhance Young’s modulus, yield stress, and energy absorption by up to 98.64%, 99.27%, and 98.61%, respectively, compared to the conventional structures. Moreover, all fabricated scaffolds exhibit porosity exceeding 90%, ensuring their suitability for tissue engineering applications.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive