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用于生物医学植入物的白银 (I) 和白银 (II) 氧化物膜:合成,稳定性,离子释放和抗菌有效性

Maxwell Akantibila¹, Hailey Maurer², Matthew Urban³

¹Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, New Jersey, USA.

Journal of biomedical materials research. Part A

|October 27, 2025

概括

与金属银相比,银氧化物 (Ag2O和AgO) 的银离子释放优越. 这些新型涂料显示出强大的,广泛的抗菌活性对抗细菌,为预防医疗植入物感染提供了有前途的解决方案.

科学领域:

材料科学材料科学材料科学
生物医学工程生物医学工程
无机化学无机化学

背景情况:

与医疗植入物相关的感染构成了重大的临床挑战.
金属银涂层在持续的离子传递方面存在局限性.
银化合物具有更高的溶解率,可以有效地传递Ag+离子.

研究的目的:

合成和描述单相银 (I) 氧化物 (Ag2O) 和银 (II) 氧化物 (AgO).
评估这些氧化银作为医疗器械抗菌涂料的潜力.
将银氧化物与金属银的银离子释放和抗菌疗效进行比较.

主要方法:

使用受控沉积技术 (气相散射,快速火,变化室压) 合成Ag2O和AgO.
通过能量分散光谱,微结构成像,X射线衍射 (XRD) 和高温XRD进行表征.
在不同的介质中量化银离子化 (水,卢里亚-伯塔尼,三角豆).
对临床和多药耐药细菌的抗微生物测定.

主要成果:

控制的沉积参数影响了单相Ag2O和AgO的形成.
在所有测试的介质中,这两种银氧化物表现出明显高于金属银涂层的银离子化率.
氧化银涂层表现出强大且广泛的抗微生物活性,对一系列细菌起作用.

结论:

银 (I) 和 (II) 氧化物是抗菌涂料的有希望的材料.
与金属银相比,这些氧化物提供了增强的银离子传递.
氧化银涂层是预防医疗植入物感染的可行策略.

关键词:

在PDR中使用PDR.这是XDRXDR.抗微生物药物是一种抗菌药物.银氧化物是一种氧化物.薄膜是一种薄膜.

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