相关实验视频
Updated: Sep 15, 2025

06:50
Extraction and Analysis of Taiwanese Green Propolis
Published on: January 7, 2019
8.6K
用于皮肤制药和化品应用的olis-Loaded Niosomes:发展,稳定性,安全性和In Vitro生物活性研究
Maria Beatriz Pinto1, Patrícia C Pires1,2,3, Mafalda Correia1,2
1Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
ACS pharmacology & translational science
|July 17, 2025
概括
研究人员开发了含的体,用于局部输送. 这些新型纳米载体显示出有前途的稳定性,受控释放和抗炎作用,适合治疗和化品用途.
科学领域:
- * 制药纳米技术 * 制药纳米技术
- * 材料科学 材料科学
- * 化学科学 * 化学科学
背景情况:
- *蜂是一种来自蜜蜂的物质,含有具有多种治疗性质 (止痛,抗炎,抗氧化,抗菌) 的化合物.
- * 体是用于局部药物输送的先进囊泡纳米系统,提供受控释放,增强稳定性和良好的生物相容性.
- *人们越来越感兴趣在治疗和化品应用中使用,需要有效的输送系统.
研究的目的:
- * 制定和描述用于局部应用的新型 прополис载荷体.
- * 为了实现小,均的颗粒大小,高封装效率和受控释放动力学.
- * 评估开发的细菌体配方的安全性和生物活性 (抗炎性潜力).
主要方法:
- *使用Tween 20,Kolliphor RH 40, cetyl酒精和/或胆固醇通过薄膜水化和挤出来制备尼奥索姆.
- * 粒子大小,多分散度指数 (PDI) 和泽塔潜力 (ζ-潜力) 的表征.
- *评估封装效率,体外释放特征,体外安全性 (角质细胞,纤维细胞),HET-CAM刺激测试和体外抗炎活性.
主要成果:
- * 体呈现出小颗粒大小 (100-200 nm),均分布 (PDI < 0.2) 和有利的z电位 (~ -38 mV).
- * 实现了高封装效率 (78.887.4%) 和受控释放配置文件,确保长时间的生物活性.
- *配方在体外显示出足够的安全性和显著的抗炎作用 (IC50:14.9017.89 ng/mL),有些配方显示出低刺激作用.
结论:
- *成功开发了新型石载体,满足了局部应用的设计质量 (QbD) 标准.
- *纳米平台提供增强的稳定性,可控释放,并证明了安全性和抗炎疗效.
- *这些多用途的阴茎细胞配方对制药和化品行业都有潜力.
相关概念视频
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
268
Orally administered drugs primarily enter the systemic circulation via passive diffusion through the intestinal membranes. The drug's absorption is influenced by drug stability in the gastrointestinal GI tract, membrane permeability, the surface area available for absorption, luminal drug concentration, and residence time in the lumen. Drug permeability can be enhanced by adjusting the lipophilicity, polarity, or molecular size of the drug, promoting its passive transport across intestinal...
268
Preclinical Development: Overview
4.9K
Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
4.9K
Prodrugs
3.0K
Prodrugs are a class of pharmaceutical compounds that undergo a biotransformation process within the body to be converted into a pharmacologically active drug. Prodrugs are designed to improve the therapeutic properties of the parent drug, such as enhancing bioavailability, increasing stability, or reducing toxicity. The concept of prodrugs revolves around modifying the chemical structure of the original drug to make it more effective or convenient for administration.
Prodrugs help overcome...
Prodrugs help overcome...
3.0K

