Revealing the Substrate Constraint Effect on the Thermodynamic Behaviour of the Pd-H through Capacitive-Based Hydrogen-Sorption Measurement.

Mechanical constraints imposed on the Pd-H system can induce significant strain upon hydrogenation-induced expansion, potentially leading to changes in the thermodynamic behavior, such as the phase-transition pressure. However, the investigation of the constraint effect is often tricky due to the lack of simple experimental techniques for measuring hydrogenation-induced expansion. In this study, a capacitive-based measurement system is developed to monitor hydrogenation-induced areal expansion, which allows us to control and evaluate the magnitude of the substrate constraint.

Study on the relationship of cPLA2, CK-MB, and membrane phospholipid content in acute myocardial infarction.

Increased plasma creatine kinase-myoglobin (CK-MB) occurs in patients with acute myocardial infarction (AMI), but its underlying relationship with cytosolic phospholipase A2 (cPLA2) is poorly understood. In the present study we sought to determine cPLA2 activation and its relationship with plasma and myocardial CK-MB level and membrane phospholipids (PLs) in an animal model of AMI. AMI was induced in 60 male Sprague-Dawley rats by ligating the left anterior descending of coronary artery.