优化和高稳定性桃体纳米脂质体的综合性特征使用响应表面方法来增强口服输送
Xiaofeng Liu1, Jiamin Zhuo1, Yao Zhang2
1College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China.
ACS omega
|December 22, 2025
概括
研究人员开发了耐酸纳米脂质体,以改善口服杏仁素的输送. 这些新型纳米载体在胃中保护杏仁素,并在肠道中释放,增强其口服生物可用性,用于潜在的疗法.
科学领域:
- 制药科学 制药科学
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 阿米格达林是一种原糖化物,具有抗癌,抗炎和抗咳的特性.
- 阿米格达林口服生物利用率低 (<5%),由于水友性和胃退化,限制了其治疗应用.
- 开发有效的口服输送系统对于利用杏仁素的潜力至关重要.
研究的目的:
- 为了设计一种耐酸的,针对肠道的纳米脂质体 (AMY-NLs-1),用于增强口服杏仁素的管理.
- 优化纳米脂质体配方,以改善封装和稳定性.
- 评估来自纳米载体的杏仁素的体外胃肠道释放特征.
主要方法:
- 使用Box-Behnken响应表面方法来优化配方.
- 纳米脂质体的特征是粒子大小,PDI,泽塔潜力,封装效率和负载能力.
- 实验室释放研究是在模拟的胃和肠液中进行的.
主要成果:
- 优化的AMY-NLs-1配方实现了64.42%的封装效率和3.75%的负载能力.
- 纳米脂质体的平均颗粒大小为152纳米,PDI为0.291和负泽塔电位 (-53.1mV).
- AMY-NLs-1表现出优异的抗酸性 (模拟胃液中<10%的泄漏) 和pH响应性肠道释放 (8小时内累计释放65%).
结论:
- 开发的纳米脂质体提供有效的酸性保护和肠道向的持续释放杏仁素.
- 这种新的纳米载体系统提供了一个可扩展的平台,用于口服输送水友性药物.
- 改善口服输送可以提高杏仁的治疗效果,并减少所需剂量.
相关概念视频
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
180
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
180
Bioavailability Enhancement: Drug Permeability Enhancement
174
Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
174
Factors Affecting Dissolution: Particle Size and Effective Surface Area
1.5K
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
1.5K
Bioavailability Enhancement: Drug Solubility Enhancement
197
Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
197
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
477
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...
477
Factors Influencing Drug Absorption: Pharmaceutical Parameters
376
Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
376


