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相关概念视频

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A Facile and Efficient Approach for the Production of Reversible Disulfide Cross-linked Micelles
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作为纳米载体的二硫化物功能化共价有机框架实现了编程的细胞内化和药物释放.

Hao Ling1, Haozhou Shu1, Mengxing Zhang1

  • 1College of Polymer Science and Engineering, State Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu 610065, P. R. China.

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概括

研究人员设计了具有二硫化键的对谷氨敏感的共价有机框架 (COF). 这些纳米载体通过增强细胞吸收和控制释放来改善药物输送,显示出癌症治疗的前景.

关键词:
细胞吸收细胞吸收.协价有机框架 协价有机框架硫化二氧化物是什么?药物输送是药物输送的过程.

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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:

  • 联有机框架 (COFs) 对药物输送有希望,但在细胞透和受控释放方面面临挑战.
  • 开发响应刺激的纳米载体对于有针对性和有效的制药应用至关重要.

研究的目的:

  • 设计具有可调节二硫化物密度的对谷氨敏感的COF (SSx-COF),以增强生物活性分子的传递.
  • 调查二硫化物结合对细胞吸收,药物释放动力学和体内抗瘤疗效的影响.

主要方法:

  • 通过将二硫化物基因整合到COF骨干中,合成具有不同二硫化物密度的SSx-COF.
  • 对COF纳米载体表面积,药物载荷能力和二硫化物含量的表征.
  • 通过二硫化物交换评估细胞吸收机制,并评估体外/体内药物释放和抗瘤活性.

主要成果:

  • SSx-COF的表面积和药物装载能力都很高.
  • 硫化物结合显著增强COF细胞吸收和加速药物释放,可通过硫化物密度控制.
  • 二硫化物交换调解了增强的细胞内化途径.
  • 装载着多克索鲁比的SS70-COF在体外和体内表现出强大的抗瘤功效.

结论:

  • 表面二硫化物工程是一种可行的策略,可以提高纳米载体的细胞内传递效率.
  • 对谷氨敏感的SSx-COF为刺激响应药物递送系统提供了一个有前途的平台.
  • 这种方法为设计下一代纳米药物用于癌症治疗提供了宝贵的见解.