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静电屏蔽抑制纳米颗粒沉积并增强等离子体激活生物功能涂层用于细胞培养井板

Xuege Feng^1,2, Jameel Sardharwalla^1,3, Stuart T Fraser³

¹School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2008, Australia.

ACS applied materials & interfaces

|August 5, 2025

概括

激活等离子体涂层 (PAC) 可以产生污染细胞培养板的纳米颗粒. 法拉第子有效地防止了这种污染,改善了细胞分化和再生医学测试结果.

科学领域:

生物材料科学生物材料科学
表面化学表面化学
细胞生物学细胞生物学

背景情况:

基于等离子体的表面处理提供了细胞培养基板上的生物分子的无试剂共价固定.
在等离子处理过程中,在现场形成等离子聚合纳米颗粒 (PPN) 会导致颗粒污染,影响表面均性和试验可靠性.

研究的目的:

提出一种可扩展的静电屏蔽方法,使用法拉第子来防止在等离子激活涂层 (PAC) 期间的纳米粒子沉积.
评估纳米颗粒抑制对细胞培养表面质量和诱导多能干细胞 (iPSC) 分化的影响.

主要方法:

在PAC过程中,使用0.45毫米网状法拉第子来调节等离子体外,并防止纳米粒子在聚烯井板中被困.
综合的表面特征包括XPS,泽塔潜力,可湿性,激素保留,以及比较网状和无网状配置的光学分析.

主要成果:

法拉第子有效地抑制了PAC处理的井板上的纳米粒子沉积.
表面表征证实了改善的均性和化学功能,没有颗粒污染.
法拉第子辅助的PAC显著增强了iPSC分化到心肌细胞,由改善的突触细胞形成和延长的收缩性证明.

结论:

法拉第子辅助PAC是一种实用且可扩展的方法,用于生产干净,功能化的细胞培养表面.
这种方法减轻了等离子体修饰生物材料中被忽视的污染源.
该技术为细胞制造,生物测试和再生医学应用提供了一个强大的平台.

关键词:

在PECVD中,PECVD是指PECVD.生物分子固定运动细胞培养板细胞培养板细胞培养细胞培养细胞培养法拉第子法拉第子这些是iPSCs.血粉尘等离子体的尘埃.表面功能化的功能化.

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