Tuning photoluminescence spectra of MoS with liquid crystals.

The photoluminescence (PL) and Raman spectra of molybdenum disulfide (MoS) can be tuned with liquid crystals. A nematic liquid crystal, 5CB, was aligned in a zigzag direction on an MoS monolayer flake. The PL and A Raman mode peaks of the MoS monolayer were shifted by 46 meV and 2 cm, respectively, owing to the interaction between MoS and the liquid crystal.

Effects of high-flow nasal cannula in patients with mild to moderate hypercapnia: a prospective observational study.

Background: Evidence for using high-flow nasal cannula (HFNC) in hypercapnia is still limited. Most of the clinical studies had been conducted retrospectively, and there had been conflicting reports for the effects of HFNC on hypercapnia correction in prospective studies. Therefore, more evidence is needed to understand the effect of the HFNC in hypercapnia.