中国药房2016，Vol.27Issue(22)：3062-3065,4.DOI:10.6039/j.issn.1001-0408.2016.22.12
Man-PEI25k纳米复合物在微针作用下的透皮性能研究
Study on the Percutaneous Properties of Man-PEI25k Nanocomplex under the Treatment of Microneedles
摘要
Abstract
OBJECTIVE:To study the percutaneous properties of Man-PEI25k nanocomplex under the treatment of microneedles. METHODS:Using fluorescent dye water-soluble carboxyl CdSe/ZnS quantum dot (QD) as model drug, Man-PEI25k/QD and Man-PEI25k/QD nanocomplex with different grafting rates(1∶3,1∶6)were formed through electrostatic adherence with PEI25k and Man-PEI25k. The distribution of QD in the active epidermal layer and dermis of skin were observed by confocal microscopy after the treatment of microneedles,using free QD as control. The accumulative retention amounts of QD in the active epidermal layer and dermis of skin were determined by fluorescence spectrophotometer after PEI25k/QD and Man-PEI25k/QD nanocomplex treated with mi-croneedles. RESULTS:The amounts of Man-PEI25k/QD nanocomplex in active epidermal layer and dermis were significantly higher than that of PEI25k/QD nanocomplex under the treatment of microneedles in vivo;the amounts of Man-PEI25k/QD (1∶6) nanocom-plex in active epidermal layer and dermis of skin were significantly higher than that of Man-PEI25k/QD(1∶3)nanocomplex. In in vi-tro transdermal diffusion experiments,microneedles could increase the retention amounts of nanocomplex in active epidermal layer and dermis of skin significantly. The retention amounts of Man-PEI25k/QD nanocomplex in active epidermal layer were increased by 2 times of that of PEI25k/QD under the treatment of microneedles after 48 h;at the same time,in the dermis that was increased by 1.5 times,with statistical significance (P<0.01). CONCLUSIONS:Microneedles can improve the percutaneous properties of Man-PEI25k nanocomplex in active epidermal layer.关键词
高分子质量聚乙烯亚胺的甘露糖衍生物/纳米复合物/微针/透皮给药/水溶性羧基CdSe/ZnS量子点Key words
Man-PEI25k/Nanocomplex/Microneedles/Transdermal drug delivery/Water-soluble carboxyl CdSe/ZnS quantum dot分类
医药卫生引用本文复制引用
许娇娇,杨云旭,徐蓓华,胡英..Man-PEI25k纳米复合物在微针作用下的透皮性能研究[J].中国药房,2016,27(22):3062-3065,4.基金项目
浙江省大学生科技创新活动计划暨新苗人才计划项目（No.2013R433003）；宁波市第二批科技项目（No.2015C110027）；宁波市科技创新团队项目 （）
