3 条结果 关键词:氧化铁纳米颗粒 ×

Water-Based Suspensions of Iron Oxide Nanoparticles with Electrostatic or Steric Stabilization by Chitosan: Fabrication, Characterization and Biocompatibility.

Sensors (Basel, Switzerland) 2017 Kurlyandskaya GV, Litvinova LS, Safronov AP, Schupletsova VV 等 13 人

本文报道了用于生物医学与磁生物传感的氧化铁磁性纳米颗粒(MNPs)水基悬浮液的制备、表征和生物相容性。采用高产能激光靶蒸发技术获得球形磁赤铁矿MNPs,XRD证实其为反尖晶石结构(Fd-3m),TEM显示粒径服从对数正态分布,中值26.8 nm、分散度0.362。通过柠檬酸钠静电稳定或壳聚糖静电/空间稳定制备水基悬浮液;壳聚糖包覆使...

Carbon disulfide mediated self-assembly of Laccase and iron oxide nanoparticles on gold surfaces for biosensing applications.

Journal of colloid and interface science 2017 Almeida I, Henriques F, Carvalho MD, Viana AS

本文探索了一种简单的一步法制备酶修饰纳米结构电极,用于构建生物传感界面。将漆酶偶联的磁铁矿型纳米颗粒固定于金表面。该方法基于二硫化碳与生物分子胺基反应原位生成二硫代氨基甲酸盐(DTC)基团,以及硫物种与金属之间的强亲和作用。研究重点证明DTC在水溶液中的形成,并进一步附着到氧化铁纳米颗粒和金电极上。紫外-可见光谱以模型仲胺N-己基甲...

A comparative study on the in vitro cytotoxic responses of two mammalian cell types to fullerenes, carbon nanotubes and iron oxide nanoparticles.

Drug and chemical toxicology 2017 Dönmez Güngüneş Ç, Şeker Ş, Elçin AE, Elçin YM

本研究旨在评估并比较人牙周膜成纤维细胞(hPDLFs)和小鼠真皮成纤维细胞(mDFs)对三种纳米颗粒(NPs)——富勒烯(C60)、单壁碳纳米管(SWCNTs)和氧化铁(Fe3O4)——的时间与剂量依赖性细胞反应。作者采用体外毒性方法及基于阻抗的生物传感器系统进行检测。纳米颗粒经透射电镜、X射线衍射、BET比表面积、动态光散射、Ze...