Polyimide-coated carbon electrodes combined with redox mediators for superior Li-O cells with excellent cycling performance and decreased overpotential.

We report an air electrode employing polyimide-coated carbon nanotubes (CNTs) combined with a redox mediator for Li-O cells with enhanced electrochemical performance. The polyimide coating on the carbon surface suppresses unwanted side reactions, which decreases the amount of accumulated reaction products on the surface of the air electrode during cycling. The redox mediators lower the overpotential of the Li-O cells because they can easily transfer electrons from the electrode to the reaction products.

Radioprotective effect of hesperetin against γ-irradiation-induced DNA damage and immune dysfunction in murine splenocytes.

This study was conducted to evaluate the preventive effect of hesperetin against radiation-induced DNA damage and immune dysfunction in murine splenocytes. Isolated splenocytes from BALB/c mice were treated with hesperetin (20, 100, and 500 µM), and then irradiated at a dose of 2 and 4 Gy of γ-irradiation. Exposure to ?-radiation resulted in DNA damage and a reduction of cell viability as well as an elevation of the levels of proinflammatory cytokines, intracellular ROS (reactive oxygen species), and NO (nitric oxide).

PEDOT:PSS as multi-functional composite material for enhanced Li-air-battery air electrodes.

Unlabelled: We propose

Pedot: PSS as a multi-functional composite material for an enhanced Li-air-battery air electrode. The

Pedot: PSS layer was coated on the surface of carbon (graphene) using simple method. A electrode containing

Pedot: PSS-coated graphene (PEDOT electrode) could be prepared without binder (such as PVDF) because of high adhesion of

Pedot: PSS.