通过系统的聚合物纳米粒子图书馆和高含量表征解码内皮糖-纳米粒子相互作用
James Paoloni1, Miriam Jackson1, Elvis Pandzic2
1School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales, Australia.
Small (Weinheim an der Bergstrasse, Germany)
|December 31, 2025
概括
纳米粒子表面电荷显著影响细胞相互作用和毒性超过尺寸. 一个成熟的细胞葡萄糖可以保护细胞免受化纳米颗粒的影响,从而影响药物输送策略.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 细胞生物学 细胞生物学
背景情况:
- 优化纳米粒子物理化学性质对于有效的药物输送至关重要.
- 了解纳米粒子与细胞的相互作用需要进行系统的研究.
研究的目的:
- 为了合成和描述不同尺寸和电荷的聚合物纳米粒子的库.
- 评估纳米粒子特性对细胞相互作用的影响,包括细胞毒性和吸收.
- 为了研究细胞葡萄糖在调节这些相互作用中的作用.
主要方法:
- 使用RAFT聚合和PISA进行42个聚合物纳米颗粒的高通量合成.
- 纳米粒子细胞毒性和吸收在未成熟/成熟葡萄糖的内皮细胞的表征.
- 半自动成像和机器学习用于单细胞纳米粒子吸收量化.
- 评估蛋白质冠状形成及其对纳米粒子特性的影响.
主要成果:
- 在确定纳米粒子细胞毒性和细胞吸收方面,表面电荷是一个比水力动力直径更主导的因素.
- 阴离子纳米颗粒显示出更高的毒性和吸收,但成熟的葡萄糖酶的细胞表现出更大的耐受性和吸收.
- 细胞葡萄糖在纳米粒子相互作用中起着保护和调节的作用.
- 蛋白质冠状形成改变了纳米粒子表面电荷和细胞相互作用.
结论:
- 纳米粒子表面电荷是药物输送的关键设计参数.
- 细胞环境,特别是葡萄糖,显著影响纳米粒子的行为.
- 可扩展的分析方法对于优化纳米粒子配方以实现有针对性的交付至关重要.
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