期刊简介
本刊刊登与工程学相关的国内外医学技术、临床应用及其基础、新技术、新理论和高新技术开发成果，新药研制、成药二次开发，数学、物理在医学中的应用、新产品研制过程，国内外医用仪器设备的质量、性能评价和购置参考。文稿须具科学性、原创性、逻辑性及有效性、文字力求准确、精练、通顺。
往期目录
-
2002
-
2003
-
2004
-
2005
-
2006
-
2007
-
2008
-
2009
-
2011
-
2012
-
2013
-
2014
-
2015
-
2016
-
2017
-
2018
首页>中国医学工程杂志
- 杂志名称：中国医学工程杂志
- 主管单位：中华人民共和国卫生部
- 主办单位：中国医药生物技术协会 卫生部肝胆肠外科研究中心
- 国际刊号：1672-2019
- 国内刊号：11-4983/R
- 出版周期：月刊
期刊荣誉：中国期刊全文数据库(CJFD)期刊收录：国家图书馆馆藏, 哥白尼索引(波兰), 上海图书馆馆藏, 知网收录(中), 维普收录(中), 万方收录(中)
复合功能传递系统的结构、铁转递蛋白的传递联系和药物载体的磁性颗粒
姚鹏；姚爱杰；康春生；Yuan Xu-bo；CHANG Jin；PU Pei-yu
关键词：Magnetic nanoparticles, O-Carboxylmethylated chitosan, TAT, Transferrin, MTX, target, drug delivery system
摘要：This paper describes a new formulation of magnetic nanoparticles coated by a novel polymer matrixO-Carboxylmethylated Chitosan (O-CMC) as drug/gene carrier. The O-CMC magnetic nanoparticles were derivatized with a peptide sequence from the HIV-tat protein and transferrin to improve the translocational property and cellar uptake of the nanoparticles. To evaluate the O-MNPs-Tat-Tf as drug carriers, Methotrexate (MTX) was incorporated as a model drug and MTX-loaded O-MNPs-Tat-Tf with an average diameter of 75nm were prepared and characterized by TEM, AFM and VSM. The cytotoxicity of MTX-loaded O-MNPs-Tat-Tf was investigated with C6 cells. The results showed that the MTX-loaded O-MNPs-Tat-Tf retained significant antitumor toxicity; additionally, sustained release of MTX from O-CMC nanoparticles was observed in vitro, suggesting that the O-MNPs-Tat-Tf could be a novel magnetic targeting carrier. We also studied the ability of O-MNPs-Tat-Tf crossing BBB in rats by single photon emission computed tomography (SPECT).
友情链接