在pH影响下设计的奇多 - 基尼纳米凝的前景,用于细胞向的交付
Julieta D Glasman1,2, Agustina Alaimo1,2, Cecilia Samaniego López2,3
1Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina.
Pharmaceutics
|July 30, 2025
概括
这项研究开发了用于药物输送的奇托-基尼纳米凝 (NGs). 这些生物相容的NGs是稳定的,被细胞有效地吸收,并提供了一个有前途的平台,用于有针对性的细胞输送.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 药物输送系统 药物输送系统
背景情况:
- 与基尼 (GNP) 交联的基托 (CS) 提供了一种非有毒的方法来制造稳定的纳米凝 (NG).
- 这些纳米凝正在探索生物医学应用中增强的完整性和体稳定性.
研究的目的:
- 开发和表征素-基尼纳米凝 (CS-GNP NGs) 作为针对性细胞输送的新平台.
- 通过物理化学表征和生物相容性评估优化纳米凝设计.
主要方法:
- 纳米凝的合成涉及调整基托桑pH值和使用高强度超声波 (HIUS).
- 使用UV-Vis,FTIR,DLS,SEM,风湿学和SAXS进行了表征.
- 使用MTT测定和光显微镜评估了生物相容性和细胞吸收.
主要成果:
- 最佳的纳米凝形成发生在pH值为4.5,产生稳定的粒子 (~200nm,+29 mV ζ-潜在).
- FTIR证实了共价结合,风湿学显示了伪塑性行为,SAXS表明了紧的网络形成.
- 纳米凝显示出非细胞毒性 (<100微克/毫升) 和有效的细胞吸收.
结论:
- 为产生稳定,生物相容的纳米凝建立了一个快速和可重复的协议.
- 这些CS-GNP纳米凝适用于药物输送应用.
- 开发的纳米凝显示了针对性细胞输送的潜力.
相关概念视频
01:24Modified-Release Drug Delivery Systems: Site-Targeted
167
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
167
01:24Site-Targeted Drug Delivery Systems: Polymeric Carriers
165
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
165