基于光触发的甲基原胺-肉脂质体为协同增强的抗菌活性和存储稳定性
Jiayu Yu1,2, Beiqi Wu1,2, Zaixiang Lou1,2
1State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, China.
Journal of food science
|March 10, 2026
概括
这项研究引入了一个智能脂质体系统,用于共同提供天然抗菌剂. 光触发释放增强了对大肠杆菌和金黄色杆菌等细菌的疗效.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 抗菌研究 抗菌研究
背景情况:
- 脂质体对自然抗菌剂的准和反应能力有局限性.
- 光敏剂往往遭受不良的可持续性和低的交付效率.
- 开发先进的输送系统对于提高天然抗菌剂的疗效至关重要.
研究的目的:
- 开发一个智能,光触发的脂质体系统,以协同交付天然抗菌剂.
- 为了利用Pheophorbide A作为一个光触发器,以控制释放蛋白胺-肉提取物复合物.
- 优化系统以改善目标,稳定性和按需的抗菌活性.
主要方法:
- 系统优化光敏感脂质体准备的系统优化.
- 脂质体属性的表征,包括封装效率,颗粒大小,PDI和泽塔潜力.
- 在红光照射和稳定性评估下进行体外释放研究.
- 对抗大肠杆菌和金黄色葡萄球菌的抗菌疗效测试.
主要成果:
- 光敏化脂质体实现了>70%的封装效率和出色的体稳定性.
- 在72小时内,光触发释放的累积率为89.91%,比常规脂质体高4倍.
- 脂质体在4°C和25°C下保持结构完整56天.
- 视光的抗菌疗效显示了较低的MIC和对大肠杆菌和黄金杆菌的增强活性.
结论:
- 开发的光触发性脂质体系统为天然抗菌剂提供了一个智能,按需的输送机制.
- 这种系统显著扩大了胺和肉提取物的应用潜力.
- 获得了增强的抗菌疗效,稳定性和受控释放,解决了传统系统的局限性.
更多相关视频
12:00Synthesis of Gold Nanoparticle Integrated Photo-responsive Liposomes and Measurement of Their Microbubble Cavitation upon Pulse Laser Excitation
Published on: February 24, 2016
8.6K
12:23Real-time Monitoring of Ligand-receptor Interactions with Fluorescence Resonance Energy Transfer
Published on: August 20, 2012
15.0K
相关概念视频
Bioavailability Enhancement: Drug Permeability Enhancement
288
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 secretion,...
288
Combined Effects of Drugs: Synergism
7.1K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
7.1K
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
289
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...
289
Modified-Release Drug Delivery Systems: Stimuli-Activated
72
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also...
72
