Magnetoelastic Humidity Sensors with TiO Nanotube Sensing Layers.

In this study, TiO nanotubes (TiO-NTs) are coated with a drop-casting method on FeNiMoB amorphous ferromagnetic ribbons and the humidity response of the prepared magnetoelastic sensors (MES) is investigated. The synthesis of TiO-NTs is performed using a hydrothermal process. Sample characterization is carried out using X-ray diffraction and scanning electron microscopy.

Magnetic-propelled FeO-chitosan carriers enhance l-asparaginase catalytic activity: a promising strategy for enzyme immobilization.

Magnetic-propelled carriers comprising magnetic FeO-chitosan nanoparticles were immobilized with l-asparaginase (l-ASNase). The enzyme displayed enhanced catalytic activity in a weak magnetic field, and thermal and pH stabilities. The conjugated l-ASNase presented higher thermostability and wider range of pH stability in comparison with those of free l-ASNase.