Transition metal elements-doped SnO for ultrasensitive and rapid ppb-level formaldehyde sensing.

Pristine SnO, Fe-doped SnO and Ni-doped SnO were synthesized using facile hydrothermal method. Analysis based on XRD, TEM and UV-Vis DRS measurements demonstrated the successful insertion of Fe and Ni dopants into SnO crystal. Formaldehyde-detection measurements revealed that transition metal-doped SnO exhibited improved formaldehyde-sensing properties compared with that of pristine SnO.

Imbedding Pd Nanoparticles into Porous InO Structure for Enhanced Low-Concentration Methane Sensing.

Methane (CH), as the main component of natural gas and coal mine gas, is widely used in daily life and industrial processes and its leakage always causes undesirable misadventures. Thus, the rapid detection of low concentration methane is quite necessary. However, due to its robust chemical stability resulting from the strong tetrahedral-symmetry structure, the methane molecules are usually chemically inert to the sensing layers in detectors, making the rapid and efficient alert a big challenge.

Shining light on transition metal sulfides: New choices as highly efficient antibacterial agents.

Globally, millions of people die of microbial infection-related diseases every year. The more terrible situation is that due to the overuse of antibiotics, especially in developing countries, people are struggling to fight with the bacteria variation. The emergence of super-bacteria will be an intractable environmental and health hazard in the future unless novel bactericidal weapons are mounted.