浅谈固体自乳化药物传递系统固化技术

查阅最近的国内外文献，综述固体自乳化药物传递系统定义及特定，固体自乳化药物传递系统的各种固化技术。作为一种新型制剂，固体自乳化药物传递系统有着良好的开发前景。     

自乳化药物传递系统概述及研究进展

目的:介绍自乳化药物传递系统的研究情况及最新进展。方法:以"自乳化""药物传递系统"等的中、英文词汇为关键词,组合查询Elsevier数据库中1995-2013年相关文献并结合其他资料进行统计分析。结果与结论:共查询到文献37篇,其中有效文献30篇。通过对自乳化药物传递系统的定义及特点、结构及形成机制,处方组成、处方筛选及优化、制备方法、质量评价等方面的阐述,发现自乳化药物传递系统能增加难溶性药物的溶解分散能力和生物利用度;同时,固体自乳化药物传递系统已成为该领域的研究热点,如自乳化脂质混悬剂和自乳化复方制剂等。随着研究的不断深入,会有更多基于自乳化技术的新剂型出现。     

自乳化释药系统的研究进展

目的：介绍自乳化药物传递系统的研究进展。方法：根据国内、国外文献报道，进行全面综合、整理和归纳。结果：对自乳化药物传递系统的处方组成和质量评价作一介绍，重点对自乳化释药系统的应用现状与前景进行综述。结论：自乳化药物传递系统将有广阔的发展前景。     

自乳化药物传递系统的研究概况

目的:总结自乳化药物传递系统的研究概况.方法:对近期自乳化药物传递系统的形成机制、处方组成、体外质量评价及其在药剂学方面的应用进行介绍.结果与结论:自乳化药物传递系统对亲脂性和水难溶性的药物是一个非常有前景的新型载体系统.     

自乳化药物传递系统的应用与前景

自乳化药物传递系统对于亲脂性和难溶性药物是一个非常有希望的新型载体系统。本文综述了自乳化药物的传递系统的物化生物药剂学特性和其目前存在的问题,并预测了该药物传递系统的发展趋势。     

固体自微乳药物递送系统的研究进展

作为一种新型的药物递送系统,固体自微乳药物递送系统可以显著提高水难溶性药物的口服生物利用度,且具有液态自微乳和固体制剂二者的优势。通过设计不同的辅料处方和包衣技术,可以控制药物释放使其具有靶向性,来达到不同的给药目的。固体自微乳药物递送系统的应用前景广阔,具有研究意义。本文对固体自微乳载体、固化技术、固体自微乳新制剂的应用进行了总结归纳,为提高水难溶性药物释放的固体自微乳化技术的研究提供了参考。     

自乳化药物传递系统的研究进展

本文从自乳化释药系统组成、基本概念、自乳化机制、SEDDS在药物制剂中的应用及其在国内外的专利、SEDDS的处方设计等方面出发,总结自乳化药物传递系统的最新研究进展,并对自乳化传递系统的发展前景作了综述。     

自乳化药物传递系统的处方优化方法和应用

目的:综述自乳化药物传递系统的处方优化方法和应用。方法:查阅国内外相关文献进行归纳总结。结果:自乳化药物传递系统的处方优化方法有(伪)三元相图法、正交设计法、响应面优化法、D-优化法、定量构效关系法、高通量处方筛选法等。结论:在自乳化药物传递系统的研究中,可根据考察的因素和指标,选择合适的处方优化方法进行处方优化。     

自乳化药物传递系统的研究进展

本文对近几年国内外有关自乳化药物传递系统的特点、吸收机制、组成、影响因素及其在药剂学方面的应用进行了归纳和分析。自乳化药物传递系统可显著地提高难溶性或亲脂性药物口服生物利用度，具有广阔的发展前景。     

注射用葫芦素B自微乳化药物传递系统的处方优化

目的对注射用葫芦素B自微乳化药物传递系统进行处方优化。方法在注射级辅料中筛选油相、乳化剂和助乳化剂,根据空白假三元相图和粒径分析进一步优化处方。结果最佳处方组成为m(油酸乙酯)∶m(Cremophor RH)∶m(乙醇)=30∶55∶15,其中药物含量的质量分数为1%。结论可按照最佳处方组成制备注射用葫芦素B自微乳化药物传递系统。     

固脂纳米粒(SLN)药物释放系统的研究进展

目的综述固脂纳米粒作为药物释放系统的最新研究进展。方法依据近年来国内外文献资料 ,将固脂纳米粒的制备方法、药物载入、药物释放、特性分析及其在药学领域的应用情况进行了概括。结果固脂纳米粒的主要制备方法为乳化法和微乳法 ;通过调整制备工艺参数可调整药物的包封率和释药曲线 ;固脂纳米粒可供多途径给药。结论固脂纳米粒在药学领域有广阔的发展前景     

Ultrasonic-activated micellar drug delivery for cancer treatment

The use of nanoparticles and ultrasound in medicine continues to evolve. Great strides have been made in the areas of producing micelles, nanoemulsions, and solid nanoparticles that can be used in drug delivery. An effective nanocarrier allows for the delivery of a high concentration of potent medications to targeted tissue while minimizing the side effect of the agent to the rest of the body. Polymeric micelles have been shown to encapsulate therapeutic agents and maintain their structural integrity at lower concentrations. Ultrasound is currently being used in drug delivery as well as diagnostics, and has many advantages that elevate its importance in drug delivery. The technique is noninvasive, thus no surgery is needed; the ultrasonic waves can be easily controlled by advanced electronic technology so that they can be focused on the desired target volume. Additionally, the physics of ultrasound are widely used and well understood; thus ultrasonic application can be tailored towards a particular drug delivery system. In this article, we review the recent progress made in research that utilizes both polymeric micelles and ultrasonic power in drug delivery.     

丙烯酸树脂系列辅料在药物新剂型中的应用

本文对丙烯酸树脂系列辅料在缓解微丸，缓释骨架片，固体分散体，微球和微囊，口服结肠定位给药系统及透皮给药系统等药物新剂中的应用进行了综述。认为：随着新型丙烯酸树脂的研究开发，其在药物新剂型的应用更加广泛。     

蓝萼甲素固体脂质纳米粒的制备工艺研究

目的以固体脂质纳米粒作为蓝萼甲素新型缓释给药系统,进行蓝萼甲素固体脂质纳米粒的制备工艺研究。方法采用乳化蒸发-低温固化法,均匀设计优化处方,按照优化工艺条件,以硬脂酸作为蓝萼甲素模型药物载体,制备得到蓝萼甲素固体脂质纳米粒,并对其包封率进行考察。结果本研究制得的蓝萼甲素固体脂质纳米粒的包封率达到80.4%。结论本研究方法可以作为蓝萼甲素固体脂质纳米粒的制备方法。     

SLN, NLC, LDC: state of the art in drug and active delivery

Drug delivery system focuses on the regulation of the in vivo dynamics, in order to improve the effectiveness and safety of the incorporated drugs by use of novel drug formulation technologies. Lipids such as fatty acids, triglycerides, vegetable oils and their derivatives, used for developing multiparticulate dosage forms, may be available in solid, semi-solid or liquid state. Solid lipid nanoparticles (SLNs), nanostructured lipid carriers (NLCs) and lipid drug conjugate (LDCs) nanoparticles are novel lipid drug delivery systems. They were devised to address some of the challenges of conventional drug delivery systems ranging from low drug encapsulation efficiency to low bioavailability of Biopharmaceutical Classification Systems (BCS) class II and class IV drugs. SLNs are based on melt-emulsified lipids, which are solid at room temperature and consist of physiologically well tolerated ingredients often generally recognised as safe. NLCs are colloidal carriers characterized by a solid lipid core consisting of a mixture of solid and liquid lipids, and having a mean particle size in the nanometer range. LDC are nanoparticles contain drugs linked to lipid particles. This minireview highlights these three different but related technologies in lipid drug delivery. The objectives of their introduction, current applications, major challenges and some patented formulations are highlighted.     

Intracellular targeting delivery of liposomal drugs to solid tumors based on EPR effects

The success of an effective drug delivery system using liposomes for solid tumor targeting based on EPR effects is highly dependent on both size ranging from 100-200 nm in diameter and prolonged circulation half-life in the blood. A major development was the synthesis of PEG-liposomes with a prolonged circulation time in the blood. Active targeting of immunoliposomes to the solid tumor tissue can be achieved by the Fab' fragment which is better than whole IgG in terms of designing PEG-immunoliposomes with prolonged circulation. For intracellular targeting delivery to solid tumors based on EPR effects, transferrin-PEG-liposomes can stay in blood circulation for a long time and extravasate into the extravascular of tumor tissue by the EPR effect as PEG-liposomes. The extravasated transferrin-PEG-liposomes can maintain anti cancer drugs in interstitial space for a longer period, and deliver them into the cytoplasm of tumor cells via transferrin receptor-mediated endocytosis. Transferrin-PEG-liposomes improve the safety and efficacy of anti cancer drug by both passive targeting by prolonged circulation and active targeting by transferrin.     

Status of novel drug delivery technology for phytotherapeutics

Herbal medicines have been widely used all over the world since ancient times and have been recognized by physicians and patients for their better therapeutic value as they have fewer adverse effects as compared with modern medicines. However, phytotherapeutics needs a scientific approach to deliver the components in a sustained manner to increase patient compliance and avoid repeated administration. This can be achieved by designing novel drug delivery systems for herbal constituents. Novel drug delivery systems not only reduce the repeated administration to overcome non-compliance, but also help to increase the therapeutic value by reducing toxicity and increasing the bioavailability, and so on. Recently, pharmaceutical scientists have shifted their focus to designing a drug delivery system for herbal medicines using a scientific approach. For a long time herbal medicines were not considered for development as novel formulations owing to lack of scientific justification and processing difficulties, such as standardization, extraction and identification of individual drug components in complex polyherbal systems. However, modern phytopharmaceutical research solves the scientific needs for herbal medicines as in modern medicine, which gives way for developing novel formulations such as nanoparticles, microemulsions, matrix systems, solid dispersions, liposomes, solid lipid nanoparticles, and so on. This article summarizes various drug delivery technologies for herbal actives, which are gaining more attention for better therapeutic response.     

蓝萼甲素固体脂质纳米粒的制备及理化性质研究

目的:制备蓝萼甲素固体脂质纳米粒,并对其理化性质进行研究。方法:用乳化-溶剂挥发法制得蓝萼甲素固体脂质纳米粒,并对其粒径、形态、表面电位、包封率、体外释药性质等进行研究。结果:所得蓝萼甲素固体脂质纳米粒的粒径分布均匀,平均粒径为(190±10·3)nm,Zeta电位为—31·2mV,平均包封率为(50·45±0·804)%;药物体外释放符合Higuchi线性方程,具有显著缓释作用。结论:固体脂质纳米粒可作为蓝萼甲素新型缓释给药系统。     

水飞蓟素纳米传递系统的研究进展(英文)

纳米科学和纳米技术在纳米药物传递系统中具有很大的潜力。水飞蓟素纳米药物传递系统的研究和开发将改善其水溶性和脂溶性,并提高生物利用度。固体脂质纳米粒、微乳、自微乳和脂质体等一系列水飞蓟素纳米处方的研究已越来越受到关注。本文综述了水飞蓟素纳米制剂的制备表征,性能评价,吸收、生物利用度等体内外研究,为其制剂的进一步研究提供科学基础。