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Influence of Process Design on the Preparation of Solid Lipid Nanoparticles by an Ultrasonic-Nanoemulsification Method
Processes ( IF 2.8 ) Pub Date : 2021-07-22 , DOI: 10.3390/pr9081265
Agata Pucek-Kaczmarek

In recent years, lipid-based nanosystems have emerged as a promising class of nanocarriers for encapsulating many active agents. Solid lipid nanoparticles (SLNs) provide good stability (colloidal as well as physical) and high biocompatibility. Appropriate design of the carrier structure through a selection of components and preparation methods allows us to obtain formulations with desired physicochemical parameters and biological properties. The present contribution has been carried out to investigate SLNs containing biocompatible phosphatidylcholine mixed with non-ionic surfactant Tween 60 as stabilizing agents. The internal lipid phase consisted of glyceryl monostearate was confirmed as safe for drug delivery by the Food and Drug Administration. The SLNs were fabricated by ultrasonic-nanoemulsification method. The preparation process was optimized in regard to variable parameters such as ultrasonication time and used amplitude and number of cycles. The sizes of the studied nanoparticles along with the size distribution were determined by dynamic light scattering (DLS), while shape and morphology were determined by atomic force microscopy (AFM) and transmission electron microscopy (TEM). The colloidal stability was measured by a turbidimetric method. The physical state of SLNs was characterized using differential scanning calorimetry (DSC). The obtained results indicate that the proposed SLNs may provide great potential for design and preparation of novel delivery nanosystems with a variety of possible applications.

中文翻译:

工艺设计对超声-纳米乳化法制备固体脂质纳米颗粒的影响

近年来,基于脂质的纳米系统已成为一类有前途的纳米载体,用于封装许多活性剂。固体脂质纳米颗粒 (SLN) 具有良好的稳定性(胶体和物理稳定性)和高生物相容性。通过选择组分和制备方法适当设计载体结构,使我们能够获得具有所需理化参数和生物学特性的制剂。目前的贡献是研究含有与非离子表面活性剂吐温 60 混合作为稳定剂的生物相容性磷脂酰胆碱的 SLN。由单硬脂酸甘油酯组成的内部脂质相被食品和药物管理局确认可安全用于药物递送。SLNs是通过超声纳米乳化法制备的。制备过程在可变参数方面进行了优化,例如超声处理时间和使用的振幅和循环次数。所研究的纳米粒子的尺寸和尺寸分布由动态光散射 (DLS) 确定,而形状和形态由原子力显微镜 (AFM) 和透射电子显微镜 (TEM) 确定。胶体稳定性通过比浊法测量。使用差示扫描量热法 (DSC) 表征 SLN 的物理状态。获得的结果表明,所提出的 SLN 可为设计和制备具有多种可能应用的新型递送纳米系统提供巨大潜力。所研究的纳米粒子的尺寸和尺寸分布由动态光散射 (DLS) 确定,而形状和形态由原子力显微镜 (AFM) 和透射电子显微镜 (TEM) 确定。胶体稳定性通过比浊法测量。使用差示扫描量热法 (DSC) 表征 SLN 的物理状态。获得的结果表明,所提出的 SLN 可为设计和制备具有多种可能应用的新型递送纳米系统提供巨大潜力。所研究的纳米粒子的尺寸和尺寸分布由动态光散射 (DLS) 确定,而形状和形态由原子力显微镜 (AFM) 和透射电子显微镜 (TEM) 确定。胶体稳定性通过比浊法测量。使用差示扫描量热法 (DSC) 表征 SLN 的物理状态。获得的结果表明,所提出的 SLN 可为设计和制备具有多种可能应用的新型递送纳米系统提供巨大潜力。使用差示扫描量热法 (DSC) 表征 SLN 的物理状态。获得的结果表明,所提出的 SLN 可为设计和制备具有多种可能应用的新型递送纳米系统提供巨大潜力。使用差示扫描量热法 (DSC) 表征 SLN 的物理状态。获得的结果表明,所提出的 SLN 可为设计和制备具有多种可能应用的新型递送纳米系统提供巨大潜力。
更新日期:2021-07-22
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