Cystathionine gamma-lyase deficiency exaggerates diethylnitrosamine-induced liver damage in mice.

Cystathionine gamma-lyase (CSE) is a key enzyme in reverse transsulfuration pathway and contributes to the majority of HS generation in liver tissues via cysteine metabolism. Dysfunction of the CSE/HS system is linked to both chronic and acute liver damage. This study investigated the regulatory role of CSE deficiency on diethylnitrosamine (DEN)-induced liver damage in mice.

Ready-to-use graphene-related material-added multi-grade oils: characterization and performance in car engine working conditions.

The need for energy efficiency is leading to the growing use of additives to enhance the performance of oil in automotive engines. Great interest is focused on nano-additives even if to date there is still no practical use in commercial liquid lubricants. Herein, the potential of industrially scalable and low-cost graphene-related materials (GRMs) as additives to enhance the performance of oil in automotive engines is explored.

An evolutionary perspective on the interplays between hydrogen sulfide and oxygen in cellular functions.

The physiological effects of the endogenously generated hydrogen sulfide (HS) have been extensively studied in recent years. This review summarized the role of HS in the origin of life and HS metabolism in organisms from bacteria to vertebrates, examined the relationship between HS and oxygen from an evolutionary perspective and emphasized the oxygen-dependent manner of HS signaling in various physiological and pathological processes. HS and oxygen are inextricably linked in various cellular functions.

Bio-Based Furan-Polyesters/Graphene Nanocomposites Prepared by In Situ Polymerization.

In situ intercalative polymerization has been investigated as a strategic way to obtain poly(propylene 2,5-furandicarboxylate) (PPF) and poly(hexamethylene 2,5-furandicarboxylate) (PHF) nanocomposites with different graphene types and amounts. Graphene (G) has been dispersed in surfactant stabilized water suspensions. The loading range in composites was 0.

Polyvinylamine Membranes Containing Graphene-Based Nanofillers for Carbon Capture Applications.

In the present study, the separation performance of new self-standing polyvinylamine (PVAm) membranes loaded with few-layer graphene (G) and graphene oxide (GO) was evaluated, in view of their use in carbon capture applications. PVAm, provided by BASF as commercial product named Lupamin, was purified obtaining PVAm films with two degrees of purification: Low Grade (PVAm-LG) and High Grade (PVAm-HG). These two-grade purified PVAm were loaded with 3 wt% of graphene and graphene oxide to improve mechanical stability: indeed, pristine tested materials proved to be brittle when dry, while highly susceptible to swelling in humid conditions.