Polymorphism of pyrene on compression to 35 GPa in a diamond anvil cell.

Structural studies of pyrene have been limited to below 2 GPa. Here, we report on investigations of pyrene up to ~35 GPa using in situ single-crystal synchrotron X-ray diffraction in diamond anvil cells and ab initio calculations. They reveal the phase transitions from pyrene-I to pyrene-II (0.

All-Single Bonds Fused N Macro-Rings and N Cagelike Building Blocks Stabilized in Lanthanum Supernitrides.

Single-bonded polymeric nitrogen has gained tremendous research interest because of its unique physical properties and great potential applications. Despite much progress in theoretical predictions, it is still challenging to experimentally synthesize polynitrogen compounds with novel all-single-bonded units. Herein, we have synthesized two brand-new lanthanum supernitrides LaN, through a direct reaction between La and N in laser-heated diamond anvil cells at megabar pressures.

High-Pressure 16-YBr Polymorph Recoverable to Ambient Conditions: From 3D Framework to Layered Material.

Exfoliation of graphite and the discovery of the unique properties of graphene─graphite's single layer─have raised significant attention to layered compounds as potential precursors to 2D materials with applications in optoelectronics, spintronics, sensors, and solar cells. In this work, a new orthorhombic polymorph of yttrium bromide, 16-YBr was synthesized from yttrium and CBr in a laser-heated diamond anvil cell at 45 GPa and 3000 K. The structure of 16-YBr was solved and refined using in situ synchrotron single-crystal X-ray diffraction.

Superior Superconducting Properties Realized in Quaternary La-Y-Ce Hydrides at Moderate Pressures.

The recent revolution in the superconductivity field stems from hydride superconductors. Multicomponent hydrides provide a crucial platform for tracking high-temperature superconductors. Besides high superconducting transition temperature (), achieving both giant upper critical magnetic field [(0)] and high critical current density [(0)] is also key to the latent potential of the application for hydride superconductors.

Effects of reprogrammed splenic CD8 T-cells in vitro and in mice with spontaneous metastatic Lewis lung carcinoma.

Background: Metastatic disease is a major and difficult-to-treat complication of lung cancer. Considering insufficient effectiveness of existing therapies and taking into account the current problem of lung cancer chemoresistance, it is necessary to continue the development of new treatments.

Methods: Previously, we have demonstrated the antitumor effects of reprogrammed CD8 T-cells (rCD8 T-cells) from the spleen in mice with orthotopic lung carcinoma.