缩的石墨烯氧化物装有抗癌剂,通过单步气溶方法合成,用于药物输送
Yiming Xi1, Shalinee Kavadiya1, Paul Kavanaugh2
1Aerosol and Air Quality Research Laboratory, Department of Chemical, Environmental, and Materials Engineering, University of Miami, Coral Gables, Florida 33146, United States.
ACS omega
|February 9, 2026
概括
一种新的曲石墨烯氧化物 (CGO) 药物输送系统 (DDS) 提供了改进的癌症治疗. 这种基于CGO的DDS显示了 doxorubicin (DOX) 的降低毒性和增强药物负载,推进了向癌症治疗.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 开发有针对性的癌症疗法对于提高治疗疗效和减少副作用至关重要.
- 基于氧化石墨烯 (GO) 的药物递送系统 (DDS) 是有前途的,但在颗粒大小和毒性方面面临挑战.
- 需要新的纳米材料来克服当前用于癌症治疗的DDS的局限性.
研究的目的:
- 制造和表征一种基于形石墨烯氧化物 (CGO) 的药物递送系统 (DDS),用于增强多克索鲁比 (DOX) 的递送.
- 与传统的GO-DDS相比,评估CGO-DDS的颗粒大小减少,药物载荷能力提高和体内毒性降低.
- 评估CGO-DDS在生理pH的药物释放特征.
主要方法:
- 使用炉气溶反应器 (FuAR) 的单步气溶方法来合成CGO颗粒.
- doxorubicin (DOX) 通过表面附着或封装装载入 CGO.
- 评估了颗粒大小,DOX载荷能力,pH值为7.4的体外药物释放,以及体内最大耐受剂量 (MTD).
主要成果:
- 一个步骤的气溶合成产生了CGO颗粒,与GO (635.32 ± 80.41 nm) 相比,其尺寸显著更小 (350.55 ± 91.43 nm).
- 对于DOX (0.52±0.01毫克/毫克),CGO的药物载荷能力与GO (0.57±0.07毫克/毫克) 的药物载荷能力相当.
- 活体中毒性研究表明,CGO的最大耐受剂量比GO (7.5 mg/kg) 高 (60 mg/kg),表明毒性降低.
结论:
- 通过单步喷雾剂方法合成的缩石墨烯氧化物 (CGO) 为药物输送系统提供了一个有前途的平台.
- 与传统的GO相比,基于CGO的DDS表现出有利的特性,包括更小的颗粒大小和明显较低的体内毒性.
- CGO纳米颗粒,可能具有诸如聚乙烯糖醇 (PEG) 等表面修饰,为开发有效的向癌症疗法提供了可行的解决方案.
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