A novel highly sensitive and selective HS gas sensor at low temperatures based on SnO quantum dots-C nanohybrid: Experimental and theory study.

In this study, SnO quantum dots-fullerene (SnO QDs-C) nanohybrid as novel sensing material was synthesized by a simple hydrothermal method. The structure and morphology of the synthesized sample were studied by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). The prepared hybrid was used as gas sensors for detection of different gasses including 70 ppm HS, 1% methane, and 1% propane at low temperatures of 100-200 °C.

Magnetic graphene oxide inlaid with silver nanoparticles as antibacterial and drug delivery composite.

A three-component composite consisted of graphene oxide, cobalt ferrite, and silver nanoparticles has been prepared by a facile method and fully characterized. The antibacterial activity of this composite has been greatly enhanced after being combined with ciprofloxacin drug. This clearly showed the occurrence of a strong synergistic effect between ciprofloxacin and the Ag NPs in the composite.