在注射力和放电速度的基础上,评估可注射微粒子输送系统的可注射性
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Updated: Jul 23, 2025

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The Quantification of Injectability by Mechanical Testing
Published on: May 13, 2020
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Chuncao Zhao1, Zhihan Zhu1, Xingchen Cao2
1NHC Key Lab of Reproduction Regulation, Shanghai Engineering Research Center of Reproductive Health Drug and Devices, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai 200237, China.
概括
优化微粒子注射系统对于药物输送至关重要. 这项研究确定了粘度和针尺度等关键因素,以提高注射能力,确保有效的皮下输送 in vivo.
科学领域:
- 生物制药药物递送系统是生物制药药物递送系统.
- 材料科学与工程 材料科学与工程
- 药理动力学和药物代谢的药理动力学
背景情况:
- 微粒的皮下注射面临着效率和残留量方面的挑战.
- 开发有效的微粒子传递系统需要克服注射障碍.
研究的目的:
- 确定影响微粒子可注射性的因素.
- 建立一个优化的注射系统,减少力和增加放电率.
- 开发一个可靠的体外和体外注射性评估系统.
主要方法:
- 评估参数:颗粒大小,注射速度,悬浮度,车辆粘度,针径/长度.
- 测量了注射力和放电速度.
- 实验的利用设计,风学测量,体外测试和体内大鼠研究.
主要成果:
- 车辆的粘度和注入速度影响排放速度和力.
- 较大的颗粒大小和较小的针尺降低了注射能力;针尺具有最显著的影响.
- 在优化条件下 (120-240毫克/毫升度,60cP粘度,23尺针) 证明了良好的体内注射性.
结论:
- 建立了有效的注射系统和微粒物输送的评估方法.
- 改进的注射性促进了基于微粒的疗法的临床转化.
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