Metasurfaces on silicon photonic waveguides for simultaneous emission phase and amplitude control.

Chip-scale photonic systems that manipulate free-space emission have recently attracted attention for applications such as free-space optical communications and solid-state LiDAR. Silicon photonics, as a leading platform for chip-scale integration, needs to offer more versatile control of free-space emission. Here we integrate metasurfaces on silicon photonic waveguides to generate free-space emission with controlled phase and amplitude profiles.

Changes of glycogen metabolism in the gills and hepatic tissue of tilapia (Oreochromis mossambicus) during short-term Cd exposure.

The aim of the study was to test the hypothesis that the mechanism of glycogen metabolism has taken place in gills rather than in liver during Cd exposure. Male tilapia were exposed to 44.45 μM ambient Cd for 12h, and we found blood glucose significantly increased, however, lactate levels showed no significant changes.

Juvenile tilapia (Oreochromis mossambicus) strive to maintain physiological functions after waterborne copper exposure.

Juvenile tilapia were acutely exposed to 0.2 and 2 mg/L Cu(2+) for up to 144 h. The Na(+)-K(+)-ATPase (NKA)-specific activity in the gills of tilapia exposed to 0.

Supramolecular metallomesogens. Self-organization of an H-bonded tetrameric assembly into columnar phase from single component.

The first example of supramolecular metallomesogens derived from palladium complexes exhibiting columnar phase is reported, and the formation of the mesophase is induced by H-bonding in a tetrameric assembly.