Research on nano-particle film preparation having a flexible magnetothermal response and good biocompatibility

Fengguo Fan, Jian Fei Sun and Ning Gu

Research on nano-particle film preparation having a flexible magnetothermal response and good biocompatibility

Fengguo Fan, Jian Fei Sun and Ning Gu

Southeast University, China

: J Nanomater Mol Nanotechnol

Abstract

Flexibility magnetic is a topic of rapidly growing interest in both the scientific and engineering research due to its numerous potential in a broad range of applications. Previous assembly approaches for 2-dimensional magnetic iron oxide at the nano scale are used by the layer by layer technology. Here, a strategy is introduced that exploits flexibility material for self-assembly of 2D thin film, and this material can be bent at different angles from 0 to 360. In alternating magnetic field with different elastic deformation of the film, there are obvious differences in magneto thermal effect. The vibrating sample magnetometer shows that the material has good anisotropy. Low frequency impedance analyzer test results further demonstrate that has a good the magnetic response. By deformation, the nanoparticle film changes its impedance due to its nanoparticles arrangement. And this film has a good hydrophilicity and can be used for skin adhesion. Scanning electron micrograph shows that, for different nanoparticle film deformation, the nanoparticles spaced from each other has changed. Analysts believe that such particles pitch density can have a very important effect on the magnetic coupling between the particles, resulting in different deformation having different magnetic response effect. In conclusion, we prepared a flexible nanoparticle film having a magnetic effect and good bio-compatibility. The future may be used for skin adhesion of administration and control magnetic stimulation.