recombinant protein purification is a kind of sensitive and expensive method in genetics engineering. genetic manipulation leads to the expression of various proteins; it should be isolated with high purity finally. differed methods for protein purification are categorized, based on cast, quality, easy work and side effect of protein. in this article, we are investigating his his-tag protein pu...

Fuel cells, secondary batteries and capacitors are among many promising energy storage devices. In particular, supercapacitors have attracted much attention because of their long life cycle and high power density. Graphene/nickel ferrite(G-NF) based supercapacitors were successfully fabricated through a one-step facile solvothermal route. Effects of synthesis conditions i.e. solvothermal time a...

Composite magnetic catalysts containing different amounts of sulfated titania (33–50 wt %) have been prepared by means high energy ball-milling between TiO2 and NiFe2O4. The characterized with N2 adsorption/desorption isotherms, XRD, temperature programmed oxidation (TPO) vibrating sample magnetometer (VSM). catalytic activity was measured in the reaction aniline 4-phenylbutyric acid continuous...

As a typical spinel ferrite, NiFe2O4 is suitable for use in gas sensors. Herein, we report the fabrication of porous, tremella-like assembled using ultrathin nanosheets via coordination Ni2+ and Fe2+ with 1,4-phenylenediboronic acid. The optical band gap estimated to be about 1.7 eV. Furthermore, sensor annealed at 400 °C exhibits low detection limit 50 ppb, fast response/recovery time (11.6 s/...