Data from: Enhanced specific loss power of hematite-chitosan nanohybrid synthesized by hydrothermal method

Abstract

We used a hydrothermal technique for producing hematite (a-Fe2O3) nanoparticles that were then functionalized with chitosan. The prepared iron oxide (a-Fe2O3) nanoparticles were single-phase, according to XRD analysis. The presence of lattice fringes in the HRTEM image confirmed the crystalline nature of the a-Fe2O3. The samples were coated with chitosan and the coating was confirmed by the spectra of Fourier transform infrared (FTIR) analysis. The Mössbauer spectra reveal a mixed relaxation state, which is also supported by the PPMS study. A zero field cooled study revealed the existence of a Morin transition. The hydrodynamic diameter of the coated particles was measured using the dynamic light scattering technique (DLS) to be between 218 and 235 nm, with a polydispersity index ranging from 0.048 to 0.119. The zeta potential was +46.8 mV, which is appropriate for colloidal stability. Both the Vero and HeLa cell lines demonstrated viability incubated for 24 hrs. with the colloids of different concentrations. The maximum temperature, Tmax attained by the hematite-chitosan nanohybrid solution of 0.25 and 4 mg/ml — the lowest and highest concentration, was 42.9 and 48.3ºC, and the specific loss power, SLP was 501.6 and 35.53, which are remarkably high for the Mmax; 300K = 1.98 emu/g.Provided in the Read me.text file for each data