Bystrzejewski Michał, Cudziło Stanisław, Huczko Andrzej, Lange Hubert, Soucy Gervais, Cota-Sanchez German, Kaszuwara Waldemar
Warsaw University, Department of Chemistry, Pasteura 1, Warszawa 02-093, Poland.
Biomol Eng. 2007 Nov;24(5):555-8. doi: 10.1016/j.bioeng.2007.08.006. Epub 2007 Aug 7.
Carbon encapsulated magnetic nanoparticles may find many prospective biomedical applications, e.g., in drug and gene delivery systems, disease detection, cancer therapy, rapid toxic cleaning, biochemical sensing, and magnetic resonance imaging. Each of these applications hinges on the relationship between magnetic fields and biological systems. Herein we present the results on the thermal stability of carbon encapsulated magnetic nanoparticles. The products were synthesized by using induction radio frequency (RF) thermal plasma. Phase composition and morphology were studied by powder X-ray diffraction and HRTEM, respectively. Thermal stability was investigated by thermogravimetry and differential thermal analyses. Carbon nanostructures were thermally stable up to 500 K.
碳包覆磁性纳米粒子可能会有许多潜在的生物医学应用，例如，用于药物和基因递送系统、疾病检测、癌症治疗、快速毒素清除、生化传感以及磁共振成像。这些应用中的每一个都取决于磁场与生物系统之间的关系。在此，我们展示了碳包覆磁性纳米粒子热稳定性的研究结果。产物通过感应射频（RF）热等离子体合成。分别采用粉末X射线衍射和高分辨透射电子显微镜研究了相组成和形态。通过热重分析和差热分析研究了热稳定性。碳纳米结构在高达500 K时具有热稳定性。
