BACKGROUND Radiofrequency ablation is a minimal invasive therapy in the treatment of bone metastases. In this study we present a new ablation system enabling an ablation in multiple directions and with an adaptable size and shape. MATERIAL AND METHODS VX-2 tumor was used for the induction of experimental bone metastases in the femur of six New Zealand white rabbits. X-ray imaging as well as C...

A sodium dodecyl sulfate modified carbon paste electrode (SDS/CPE) was developed in this work based on the surface modification method. The modified electrode was prepared by immersing SDS/CPE in a nickel nitrate solution. This electrode showed a strong accumulation ability toward nickel ions. Then modified electrode was conditioned by potential recycling in a potential range of 0.2–0.8 V (vs. ...

a thin film of epinephrine (ep) was electrochemically deposited on the surface of glassy carbon electrode previously activated in nahco3 solution. the cyclic voltammograms of the modified electrode indicate that the surface confined ep are strongly dependent on the solution ph, as expected for quinone/hydroquinone functionalities. the ep-modified glassy carbon electrode exhibited catalytic acti...

we used an effective electrochemical sensor for the determination of imipramine at ph 7.2 using a carbon nanocomposite electrode. the electrode has been designed by incorporation of montmorillonite nanoclay into the carbon ionic liquid electrode. the high sensitivity of 1.714 μa (μm)-1, two linear calibration ranges of 0.1–2 μm and 2-40 μm, and detection limit of 19 nm were achieved. the relati...

Developing facile approaches to fit in large-scale fabrication of efficient and durable catalytic electrodes is highly desirable for oxygen electrocatalysis metal–air batteries. Herein, a strategy based on phase separation laser induction proposed prepare 3D binder-free integrated (IEs). The between polybenzimidazole (PBI) solution coagulation bath containing metal precursors occurs form interc...

There has been a dramatic change in hospital care of cardiac arrest survivors in recent years, including the use of target temperature management (hypothermia). Clinical signs of recovery or deterioration, which previously could be observed, are now concealed by sedation, analgesia, and muscle paralysis. Seizures are common after cardiac arrest, but few centers can offer high-quality electroenc...

the glucose oxidase (gox) electrochemical sensors were used to detect a little amount of glucose. in this paper, the pure platinum plate (length of 5 cm and a width of 3 mm), the ag/agcl electrode and platinum electrode (diameter of 1 mm) were applied as a working electrode (w.e), reference electrode and auxiliary electrode sequential. factors measured, glucose concentration and ph is phosphate...

A modified electrode was prepared by modification of the carbon paste electrode (CPE) with graphene nano-sheets. The fabricated modified electrode exhibited an electrocatalytic activity toward gallic acid (GA) oxidation because of good conductivity, low electron transfer resistance and catalytic effect. The graphene modified CPE had a lower overvoltage and enhanced electrical current respect to...