High-Frequency Induction Heated Synthesis and Consolidation of Nanostructured Al-TaC Composite and Its Mechanical Properties.

The significance of Al matrix composites reinforced with metal carbide having low density and very high hardness increases in order to reduce CO₂ emissions and improve the efficiency of energy in automobile and transportation industries. Nanopowder mixture of Ta and Al₄C₃ were fabricated by high energy ball milling. Highly dense nanostructured 4Al-3TaC composite was consolidated by high-frequency induction heated sintering within one min from the mechanically activated nanopowder mixture of Ta and Al₄C₃ under the 80 MPa pressure.

Inhibition of matrix metalloproteinase-9 prevents neutrophilic inflammation in ventilator-induced lung injury.

Neutrophils are considered to play a central role in ventilator-induced lung injury (VILI). However, the pulmonary consequences of neutrophil accumulation have not been fully elucidated. Matrix metalloproteinase-9 (MMP-9) had been postulated to participate in neutrophil transmigration.