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.

Vibrational spectroscopic study on some Hofmann type clathrates: M(2-(1-cyclohexenyl)ethylamine)2Ni(CN)4·2benzene (M=Ni and Cd).

New Hofmann type benzene clathrates in the form of M(CyHEA)2Ni(CN)4·2benzene (where CyHEA=2-(1-cyclohexenyl)ethylamine and M=Ni or Cd) have been prepared in powder form and FT-IR and Raman spectra have been reported. The results suggest that title compounds are similar in structure to Hofmann type clathrates and their structures consist of polymeric layers of |M-Ni(CN)4|∞ with the CyHEA molecule bounded to the metal atoms (M).

Vibrational spectroscopic investigations of some Hofmann-T(d)-type complexes: Ni(2-(1-cyclohexenyl)ethylamine)(2)M(CN)(4) (M=Cd or Hg).

New Hofmann-T(d)- type complexes in the form of Ni(CyHEA)(2)M(CN)(4) (where CyHEA=2-(1-cyclohexenyl)ethylamine and M=Cd or Hg) have been prepared in powder form and their infrared (4000-100cm(-1)) and Raman (2800-1650cm(-1)) spectra have been reported. The thermal behaviour of these complexes has been investigated by differential thermal analysis (DTA) and thermo-gravimetric analysis (TGA). The results suggest that these compounds are similar in structure to the Hofmann-T(d)-type complexes.