Biodegradable iron-based foams prepared by the space holder technique using urea

IF 2.4 4区 工程技术 Q3 ELECTROCHEMISTRY Journal of Applied Electrochemistry Pub Date : 2023-10-21 DOI:10.1007/s10800-023-01993-x
V. Čákyová, R. Gorejová, R. Macko, O. Petruš, T. Sopčák, M. Kupková, F. Kaľavský, R. Oriňaková
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Abstract

Abstract Iron-based degradable biomaterials have attracted much attention as next-generation bone implants due to their excellent mechanical properties and good biocompatibility. Many studies are now focusing on the preparation and detailed study of porous versus non-porous degradable materials. Porous degradable biomaterials have many advantages over the non-porous ones owing to their structure, which allows easier bone tissue ingrowth. The aim of this work was to prepare Fe-based biodegradable porous materials in a cost-effective way via powder metallurgy technique using urea space holders. Five different samples with increasing space holder weight ratio (up to 20 wt%) were prepared. Surface morphology and sample structure were studied using the optical microscopy, Raman spectroscopy, and scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDX). Electrochemical corrosion rate analysis confirmed that the samples corroded faster with increasing number of pores. With an increasing amount of urea, the number of pores increased proportionally, which can potentially be used to tune the corrosion rate. However, mechanical integrity of the samples was not maintained when more than 10 wt% of space holder was used. Graphical abstract
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利用尿素制备空间支架技术制备可生物降解的铁基泡沫
摘要铁基可降解生物材料因其优异的力学性能和良好的生物相容性而成为下一代骨植入材料。多孔可降解材料与非多孔可降解材料的制备和详细研究是目前研究的重点。多孔可降解生物材料由于其结构,使骨组织更容易向内生长,因此与非多孔生物材料相比具有许多优点。本研究的目的是通过粉末冶金技术,利用尿素空间支架,以一种经济有效的方式制备铁基可生物降解多孔材料。制备了五种不同的样品,增加了空间支架重量比(高达20 wt%)。利用光学显微镜、拉曼光谱和扫描电子显微镜(SEM)和能量色散x射线分析(EDX)研究了样品的表面形貌和结构。电化学腐蚀速率分析证实,随着孔隙数量的增加,样品腐蚀速度加快。随着尿素用量的增加,孔隙数量成比例地增加,这可以潜在地用于调整腐蚀速率。然而,当使用超过10%的空间支架时,样品的机械完整性不能保持。图形抽象
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来源期刊
Journal of Applied Electrochemistry
Journal of Applied Electrochemistry 工程技术-电化学
CiteScore
4.70
自引率
3.40%
发文量
133
审稿时长
2.9 months
期刊介绍: The Journal of Applied Electrochemistry is the leading journal on technologically orientated aspects of electrochemistry. The interface between electrochemical science and engineering is highlighted, emphasizing the application of electrochemistry to technological development and practice, and documenting properties and data of materials; design factors, design methodologies, scale-up, economics and testing of electrochemical devices and processes. The broad range of technologies includes energy conversion, conservation, and storage, new battery systems, fuel cells, super capacitors, solar cells, power delivery, industrial synthesis, environmental remediation, cell design, corrosion, electrochemical reaction engineering, medical applications of electrochemistry and bio-electrochemistry, the electrochemical treatment of effluents, hydrometallurgy, molten salt and solid state electrochemistry, surface finishing, electroplating, electrodeposition, sensors, and applications of molecular electrochemistry. It also publishes invited reviewed articles, book reviews and news items and a comprehensive electrochemical events calendar.
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