Magnetic-Electrospinning Synthesis of γ-FeO Nanoparticle-Embedded Flexible Nanofibrous Films for Electromagnetic Shielding.

The exploration of a new family of flexible and high-performance electromagnetic shielding materials is of great significance to the next generation of intelligent electronic products. In this paper, we report a simple magnetic-electrospinning (MES) method for the preparation of a magnetic flexible film, γ-FeO nanoparticle-embedded polymeric nanofibers. By introducing the extra magnetic field force on γ-FeO nanoparticles within composite fibers, the critical voltage for spinning has been reduced, along with decreased fiber diameters.

[The interaction between BLF and BSA and impact in interaction of RT-BSA-BLF system].

The binding of rhaponticin to bovine serum albumin (BSA)-bovine lactoferrin (BLF) and the factors that affect BSA-BLF interaction have been studied by fluorescence spectroscopy and Fourier transform infrared spectroscopy. In the fluorescence experiment, RT quenched the fluorescence intensity of mixed proteome and the maximum emission wavelength of BSA, BLF and BSA-BLF proteins system. RT caused obvious red-shift fluorescence for an interaction between RT and proteome.

[Binding mechanism of rhaponticin and human serum albumin].

The interaction mechanism between rhaponticin (RT) and human serum albumin (HSA) has been studied by fluorescence spectroscopy and absorbance spectra. The mediation effect that the metal ions took part in the interaction has also been discussed in this paper. Based on different theoretical models of fluorescence quenching, the binding constant (K) and binding sites (n) of the interaction were determined and analyzed comparatively.