功能化聚烯酸涂层铁氧化物磁性纳米粒子作为对氧化还原反应敏感的癌症治疗药物
Beatriz Brito1,2,3, Thomas W Price1, Cátia V Rocha2
1School of Life Sciences, Faculty of Health Sciences, University of Hull, Cottingham Road, HU6 7RX Hull, UK. graeme.stasiuk@kcl.ac.uk.
Journal of materials chemistry. B
|July 4, 2025
概括
我们开发了新的铁氧化物纳米颗粒,涂上了多烯酸和 (IV) 前药,用于癌症治疗. 这些纳米颗粒提供了增强的MRI对比度和向药物输送,在癌细胞亡中显示出卓越的疗效.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 氧化铁纳米粒子 (IONPs) 具有独特的特性,可用于神经应用.
- IONP的功能化增强了它们的治疗和诊断能力.
研究的目的:
- 为了开发聚烯酸 (PAA) 涂层的氧化铁纳米颗粒与 (IV) 前药 (Fe3O4@PAA-Pt (IV)) 功能化.
- 为了评估这些纳米结构作为T2MR的theranostics与抗氧化反应性质的癌症治疗.
主要方法:
- 优化了Fe3O4@PAA-Pt(IV) 纳米颗粒的合成.
- 磁性和放松度性质的表征.
- 在2D和3D癌症模型中进行体外研究,包括细胞内化,活力和亡测定.
主要成果:
- 合成的纳米颗粒显示出最佳尺寸和Pt/Fe比.
- Fe3O4@PAA-Pt(IV) 纳米粒子的放松性比Resovist®的放松性更高.
- 在癌细胞中积累的纳米粒子,使MRI对比度增强.
- 与单独的Pt(IV) 前药相比,在诱导亡方面表现出更高的疗效,并在3D模型中与西斯普拉丁具有可比的疗效.
结论:
- 用Pt(IV) 功能化PAA涂层的氧化铁纳米结构显示出作为氧化还原反应敏捷的MR光学材料的潜力.
- 这些多功能纳米结构为向癌症治疗和诊断提供了一个有希望的平台.
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