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相关概念视频

Drug Delivery: Miscellaneous Routes01:22

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Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection,  and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
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Non-oral extravascular routes, which encompass sublingual, buccal, topical, intramuscular, and inhalation methods, primarily utilize passive diffusion to transport drugs into the systemic circulation. The absorption rates and effectiveness of these routes depend on the drug's physicochemical properties, as well as the patient's anatomical and pathophysiological state.
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相关实验视频

Updated: May 20, 2025

Author Spotlight: Innovative Microneedle-Based Strategies for Enhanced Exosome Delivery and Stability
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透皮微针贴片用于抗氧化剂释放.

Samuel Mugo1, Scott Robertson1, Weihao Lu1

  • 1Physical Sciences Department, Macewan University, 10700-104 Avenue, Edmonton, AB T5J 4S2 Canada.

Discover materials
|March 25, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的蜂成型的微针贴片,用于控制透皮药物输送. 导电聚合物微针有效释放了模型药物,显示了未来临床应用的前景.

关键词:
抗氧化剂控制释放的抗氧化剂电化学治疗平台 电化学治疗平台聚合物微针贴片的补丁通过皮肤传递药物.

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科学领域:

  • 生物材料科学 生物材料科学
  • 纳米技术纳米技术
  • 药物输送系统 药物输送系统

背景情况:

  • 基于聚合物的微针贴片为患者提供符合患者要求的通过皮肤递送药物.
  • 智能和可控制的微针系统是一个新兴的研究领域.
  • 微针的可访问的制造方法是必要的.

研究的目的:

  • 开发一种使用蜜蜂模具成型微针的可访问方法.
  • 评估一种基于聚合物的微针平台,用于控制透皮药物释放.
  • 评估与碳纳米管,纤维素纳米晶体和聚氨酸 (PDMS@CNT/CNC@PANI) 微针相集成的导电性聚二甲基西洛的药物释放能力.

主要方法:

  • 使用蜜蜂模具制造微针,并逐层组装PDMS@CNT/CNC@PANI.
  • 在微针贴片上加载模型化合物 (乳腺蓝和鲁丁).
  • 评估通过皮肤释放的药物,使用皮作为人类皮肤模拟物,评估被动和电压介导的扩散.

主要成果:

  • 该PDMS@CNT/CNC@PANI微针贴片证明了有效的药物加载,稳定和受控释放.
  • 从微针贴片中电化学和被动释放的鲁丁均实现了大约66%的释放.
  • 装有鲁丁的PDMS@CNC/CNT@PANI补丁显示释放范围为66-84%.

结论:

  • 开发的微针贴片有效地以受控的方式释放药物.
  • 使用蜂模具的可访问制造方法是可行的.
  • 这些新型的微针贴片显示出临床透皮药物释放应用的巨大潜力.