合成和激活pH敏感的金属有机框架Sr(BDC) ∞用于口服药物输送
Andrey Vodyashkin1,2, Antonina Sergorodceva1, Parfait Kezimana1
1RUDN University, 117198, Moscow, Russia.
Dalton transactions (Cambridge, England : 2003)
|December 15, 2023
概括
本研究提出了对二甲甲酸金属有机框架 (Sr(BDC) MOFs) 的改进激活方法,提高了它们的药物递送能力. 激活的MOF显示出低毒性和潜在的安全和有效的多克索鲁比辛输送.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
背景情况:
- 金属有机框架 (MOF) 越来越多地用于生物医学应用.
- 高效的MOF激活对于优化其特性至关重要,特别是在药物输送方面.
- 石甲 (Sr(BDC)) MOF 是一个有前途的材料类.
研究的目的:
- 开发一种用于Sr(BDC) MOFs的新制备方法.
- 建立一种替代的,有效的激活方法,从Sr(BDC) MOF中去除残留溶剂 (DMF).
- 评估激活对Sr(BDC) MOF特性及其适用于药物输送的影响.
主要方法:
- 使用XRD,FTIR,TGA和SEM进行Sr(BDC) MOF的合成和表征.
- 不同激活方法的比较分析,包括乙醇处理.
- 使用多克索鲁比作为模型药物的MOF吸附特性评估.
- 试验室中细胞毒性和亡测定以评估生物安全性.
主要成果:
- 成功合成和表征了Sr(BDC) MOFs.
- 证明乙醇处理有效地去除DMF,改善MOF表面积和孔隙结构.
- 激活的Sr(BDC) MOFs显示了多克索鲁比辛吸附的改善.
- 在测试度中,MOFs表现出较低的细胞毒性和最小的亡诱导.
结论:
- 开发的激活方法对于优化Sr(BDC) MOF性能至关重要.
- 乙醇激活的Sr(BDC) MOF是药物输送应用的有希望,安全和有效的平台.
- 对生物医学应用的Sr(BDC) MOF进行进一步的研究是有必要的.
相关概念视频
Drug Delivery: Enteral Route
460
The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
460
Factors Affecting Dissolution: Particle Size and Effective Surface Area
853
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...
853
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
208
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...
208


