多孔水凝微球具有出色的温度敏感性,磁性和光特性,用于药物输送
Shilin Tang1, Chen He1, Haie Zhu1
1College of Materials Science and Engineering, Chongqing University of Technology Chongqing 400054 China zhuhaie@cqut.edu.cn tangbo@cqut.edu.cn.
RSC advances
|October 23, 2024
概括
研究人员开发了新的多孔水凝微球,具有温度敏感,磁性和光特性,用于先进的药物输送. 这些智能微球在磁热治疗期间提供受控释放和视觉监控.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
背景情况:
- 多孔水凝微球为药物输送应用提供了多功能平台.
- 整合多种刺激反应性质 (热敏,磁性,光) 增强了对药物释放的控制.
- 开发用于视觉监控和外部控制的治疗干预的智能材料是关键的研究领域.
研究的目的:
- 合成和描述具有温度敏感,磁性和光功能的新型多孔水凝微球.
- 评估这些微球在控制药物输送方面的潜力,特别是与磁热疗法结合使用.
- 研究温度对开发的水凝微球的药物加载和释放动力学的影响.
主要方法:
- 滴滴微流体和光启动激素聚合被用于微球合成.
- 描述技术包括扫描电子显微镜 (SEM),振动样本磁力测量 (VSM) 和光光谱学.
- 牛血清白蛋白 (BSA) 被用作一种模型药物来评估负载能力和释放概况.
主要成果:
- 合成的微球表现出极好的温度敏感性,磁性和光性质.
- 观察到体积相位转换温度在40-45°C之间,冷却后体积膨胀率为5.26.
- 和磁化达到1.79emu g-1,最佳光发射在616nm.
- 最大药物载荷容量为238 mg g-1,药物释放动力学取决于温度.
结论:
- 开发的多孔水凝微球是智能药物输送系统的有希望的候选者.
- 集成的特性允许视觉监测和药物释放的外部控制,特别是在磁热治疗期间.
- 温度调节有效地控制了微球中的药物释放量和速度.
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