Platinum is known as a catalyst with exceptional reactivity for many important reactions, e.g. the oxygen reduction reaction. To reduce the high cost of pure platinum catalysts, platinum on a carbon support is widely used in industrial fuel cell applications. However, these Pt/C systems suffer from poor stability. As a cost-efficient and more durable alternative, Pt single-atom catalysts on a T...

We previously reported electrochemically reduced water (ERW), produced near the cathode by electrolysis, exhibits reductive activity. We also revealed that ERW contains Pt nanoparticles (Pt nps) derived from Pt-coated titanium electrodes in addition to high concentration of dissolved molecular hydrogen (H2) by in vitro assay, and Pt nps exhibit powerful ROS scavenger activity and catalysis acti...

The electrochemical reduction of highly oxidized unsupported graphene oxide nanosheets and its platinum electrodeposition was done by the rotating disk slurry electrode technique. Avoiding the use of a solid electrode, graphene oxide was electrochemically reduced in a slurry solution with a scalable process without the use of a reducing agent. Graphene oxide nanosheets were synthesized from car...

The acute chest syndrome (ACS), a pneumonia-like illness in sickle cell patients, is one of the most frequent causes of their morbidity and hospitalizations. Repeated ACS events may predict the development of chronic lung disease. ACS is reported as a frequent cause of death in these patients. We examine here the incidence and risk factors of ACS in 3,751 patients with sickle cell disease who w...

BACKGROUND Cyclosporin A (CsA) nephrotoxicity has been attributed primarily to renal haemodynamic alterations caused by afferent arteriolar vasoconstriction. However, CsA nephropathy is also characterized by CsA-induced pre-glomerular disturbances and interstitial injury that may occur independently of haemodynamic changes. Given the high lipophilic activity of CsA, we hypothesized that direct ...

We evaluated the effect of sample volume and citrate concentration on results of routine coagulation assays (prothrombin time [PT] and activated partial thromboplastin time [APTT]). The study was performed on samples obtained from healthy persons and patients receiving oral anticoagulant therapy. Standard evacuated tubes (3.2% and 3.8% sodium citrate) were filled to varying total sample volumes...

Sum frequency generation (SFG) surface vibrational spectroscopy and kinetic measurements using gas chromatography have identified at least two reaction pathways for benzene hydrogenation on the Pt(100) and Pt(111) single-crystal surfaces at Torr pressures. Kinetic studies at low temperatures (310-370 K) show that benzene hydrogenation does not proceed through cyclohexene. A Langmuir-Hinshelwood...

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