Iron oxide superparamagnetic nanocarriers bearing amphiphilic N-heterocyclic choline analogues as potential antimicrobial agents
作者:Alla Zablotskaya、Izolda Segal、Yuris Popelis、Anatoly Mishnev、Mikhail Maiorov、Dmitry Zablotsky、Elmars Blums、Vizma Nikolajeva、Daina Eze
DOI:10.1002/aoc.3302
日期:2015.6
functionalized and guided using a magnetic field. Iron oxide magnetic nanoparticles precoated with oleic acid and bearing novel antimicrobial N‐heterocyclic choline analogues, namely O‐, N‐ and O,N‐bis‐undecyl‐substituted N‐(2‐hydroxyethyl)‐1,2,3,4‐tetrahydroisoquinolinium derivatives, have been obtained as potential biomedical agents for drug delivery and antimicrobial therapy. Structural and size determinations
磁性纳米粒子是生物医学中的一种先进工具,因为它们可以同时使用磁场进行功能化和引导。铁氧化物磁性纳米颗粒预涂油酸并带有新型抗菌N-杂环胆碱类似物,即O-,N-和O,N-双十一烷基取代的N(2-羟乙基)-1,2,3,4-四氢异喹啉鎓衍生物已作为潜在的生物药物用于药物输送和抗菌治疗。基于磁粒度仪,动态光散射测量和X射线衍射分析,对新型合成磁性纳米系统进行了结构和尺寸确定。最期望的氧化铁芯直径为6.2–10.5 nm。磁化分析表明颗粒在室温下是超顺磁性的。体外检查了合成纳米粒子的水性磁流体,涉及革兰氏阳性(金黄色葡萄球菌MSCL 334,蜡状芽孢杆菌MSCL 330)和革兰氏阴性(大肠杆菌MSCL 332,铜绿假单胞菌MSCL331,奇异变形杆菌MSCL 590)细菌菌株和真菌(白色念珠菌MSCL 378,黑曲霉MSCL 324)。发现样品具有磁性并且具有抗菌活性。对S的最低抑菌浓度。确定最活跃的磁性流体的金黄色葡萄球菌含量为16