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相关概念视频

Modified-Release Drug Delivery Systems: Rate-Programmed II01:19

Modified-Release Drug Delivery Systems: Rate-Programmed II

Rate-programmed drug delivery systems release drugs in a controlled manner to maintain therapeutic levels. Three main designs include reservoir, matrix, and hybrid systems.Reservoir systems consist of a drug core enclosed within a membrane that controls drug release. In non-swelling reservoir systems, polymers like ethyl cellulose or polymethacrylates are used. These do not hydrate in aqueous media and control release through membrane thickness, porosity, or insolubility. This type includes...
Modified-Release Drug Delivery Systems: Rate-Programmed I01:22

Modified-Release Drug Delivery Systems: Rate-Programmed I

Rate-programmed drug delivery systems (DDS) are designed to release drugs at specific, controlled rates to maintain consistent therapeutic levels. These systems are categorized based on their release mechanisms, including dissolution-controlled DDS, diffusion-controlled DDS, and combined dissolution-diffusion-controlled DDS.In dissolution-controlled DDS, the release rate depends on the slow dissolution of the drug itself or the surrounding matrix. Drugs with inherently slow dissolution rates,...

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相关实验视频

Updated: May 10, 2026

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release
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Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

Published on: February 13, 2016

随机场微波辅助制药冷化与闭环控制

Alina A Alexeenko1,2,3, Ahmad Darwish4,5, Drew Strongrich6,4

  • 1School of Aeronautics and Astronautics, Purdue University, West Lafayette, IN, 47907, USA. alexeenk@purdue.edu.

Scientific reports
|March 28, 2025
PubMed
概括
此摘要是机器生成的。

一个新的微波冷化系统显著加快生物制药干燥. 这种先进的方法使用可调节的随机场进行均加热,克服了传统冷干燥的局限性,提高了效率.

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科学领域:

  • 生物技术是生物技术.
  • 化学工程是化学工程的重要组成部分.
  • 材料科学 材料科学 材料科学

背景情况:

  • 传统的冷化是能源密集的,由于间接的热传递,速度很慢.
  • 不高效的热传递会导致不均的冷和干燥,特别是在大型生物制药生产中.
  • 目前的方法限制了疫苗和生物制剂的吞吐量.

研究的目的:

  • 开发下一代可调节的随机场微波冷化系统.
  • 为了证明冷干燥过程的显著加速.
  • 为了解决传统冷化的吞吐量限制.

主要方法:

  • 使用微波源 (8-18 GHz,<400 W) 与机械器进行场随机化.
  • 使用光学传感器直接实时测量温度.
  • 实现了闭环控制算法,以实现最佳的产品温度调节.

主要成果:

  • 与传统冷化相比,显著加快了干燥时间.
  • 通过随机微波场实现了均的加热.
  • 验证了产品温度和初级干燥时间的模型.

结论:

  • 可调节的随机场微波冷化系统为传统方法提供了更快,更有效的替代方案.
  • 这项技术有可能彻底改变生物制药和疫苗生产.
  • 优化的干燥速度确保了产品的完整性和质量.