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首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Enhanced percutaneous delivery of recombinant human epidermal growth factor employing nano-liposome system
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Enhanced percutaneous delivery of recombinant human epidermal growth factor employing nano-liposome system

机译:使用纳米脂质体系统增强经皮递送重组人表皮生长因子

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We encapsulated recombinant human epidermal growth factor (rhEGF) into nano-liposomes (NLs) system for topical delivery. The rhEGF-loaded NLs were prepared using a high pressure homogenization method. Morphology and overall particle distribution of NLs were investigated using transmission electron microscopy (TEM) and high resolution microscope (CytoViva(TM)). Particle size, zeta (ζ) potential and encapsulation efficiency were measured and the percutaneous delivery of NLs was evaluated using Franz diffusion cells and immunofluorescence confocal laser scanning microscopy (CLSM). The mean particle size, zeta potential and encapsulation efficiency of the NLs were 155.57 ± 2.59 nm, -57.92 ± 4.35 mV and 9.00 ± 0.39%, respectively. TEM and microscopic analysis showed spherical, very even-sized vesicles approximately 150 nm. The skin permeation and localization of rhEGF were enhanced by NLs. CLSM image analysis provided that the NLs enhanced the permeation and localization of rhEGF in rat skin by facilitating entry through pores of skin.
机译:我们将重组人表皮生长因子(rhEGF)封装到纳米脂质体(NLs)系统中进行局部递送。使用高压均质化方法制备rhEGF负载的NL。使用透射电子显微镜(TEM)和高分辨率显微镜(CytoVivaTM)研究了NL的形态和总体颗粒分布。测量粒度,ζ(ζ)电位和包封效率,并使用Franz扩散池和免疫荧光共聚焦激光扫描显微镜(CLSM)评估NL的经皮递送。 NL的平均粒径,ζ电势和包封效率分别为155.57±2.59 nm,-57.92±4.35 mV和9.00±0.39%。 TEM和显微镜分析显示球形的,非常均匀的囊泡约为150 nm。 NL增强了rhEGF的皮肤渗透和定位。 CLSM图像分析表明,NLs通过促进皮肤毛孔进入而增强了鼠皮肤中rhEGF的渗透和定位。

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