Synthesis of highly dense MoO/MoS core-shell nanoparticles via chemical vapor deposition.

Nanostructure morphologies of transition metal dichalcogenides (TMDs) are gaining much interest owing to their catalytic, sensing, and energy storage capabilities. Here, we report the synthesis of highly dense MoO/MoS core-shell nanoparticles, a new form of TMD nanostructure, via chemical vapor deposition using new growth geometry where a thin film of MoO was used as a source substrate for Mo as opposed to using MoO powder used in conventional studies. To grow the MoO/MoS core-shell nanoparticles, we precisely control the carrier gas flow rate and sulfur vapor introduction time with respect to the melting of a MoO thin film used for Mo precursor.

Procalcitonin measurement in routine emergency medicine practice: comparison between two immunoassays.

Background: Accurate identification of bacterial infections in patients presenting at the emergency department is crucial for early and rational antibiotic treatment. In this situation, using a cut-off of 0.25 microg/L for procalcitonin allows for carefully monitoring of febrile patients.