量身定制的核心外纳米载体用于通过可见光激活提供治疗药物
Deric Andrade-Alarcón1, Víctor de la Asunción-Nadal1, Gastón A Crespo1,2
1UCAM-SENS, Universidad Católica San Antonio de Murcia, UCAM HiTech, Avda. Andres Hernandez Ros 1, Murcia, 30107, Spain.
Angewandte Chemie (International ed. in English)
|October 31, 2025
概括
我们开发了新型的300nm纳米粒子 (NP),使用聚3-乙-2,5-) (POT) 和氧化铁 (Fe3O4) 进行可控的药物输送. 可见光触发了从这些磁性NP中释放的特拉佐 (TRZ+),在血清中效率超过90%.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 药物运输 药物运输 药物运输
背景情况:
- 开发有针对性和高效的药物输送系统对于有效的疗法至关重要.
- 现有的平台通常需要高能光源来释放药物,这限制了它们的临床适用性.
- 导电性聚合物提供了对光敏感药物释放的潜力,但需要优化可见光激活.
研究的目的:
- 用可见光设计一种新的纳米载体,用于使用可见光控制药物释放.
- 根据磁纳米粒子内的导电聚合物的光氧化,研究药物释放的机制.
- 为了评估纳米载体在释放血清中特拉佐 (TRZ+) 的效率.
主要方法:
- 合成的300纳米纳米颗粒由聚3-八乙-2,5-二 (POT),Fe3O4和轨道 (TRZ+) 组成.
- 研究了可见光 (470,530,625nm) 诱导的POT光氧化机制及其对TRZ+释放的影响.
- 加入Fe3O4形成有机-无机异质连接 (Fe3O4/POT) 以提高可见光响应.
- 量化TRZ+释放度和在未稀释血清中测试的输送效率.
主要成果:
- 在可见光照射时,从POT/Fe3O4/TRZ+TPB-纳米粒子中实现了TRZ+的受控释放.
- 根据使用的可见光波长 (470-530nm) 证明了不同的释放剂量 (1.6-3.5μg/mL).
- 药物传递效率很高,在未稀释的血清中超过90%.
- Fe3O4/POT异构连接使光氧化和药物释放能够使用低能可见光.
结论:
- 新的POT/Fe3O4/TRZ+TPB-纳米载体有效地使用可见光传递特拉佐,在现有平台上提供了显著的进步.
- 集成磁性特性和具有量身定制带间隙的导电聚合物,提高了可控药物释放的光氧化性能.
- 该系统显示了在生物环境中安全高效的可见光触发药物递送应用的巨大潜力.
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