In this work, we precisely measure the electrical properties of a low-temperature atmospheric-pressure helium plasma jet, such as rf current and voltage, analyze in detail its characteristics. The results show that instantaneous voltage are nearly phase, which means is purely resistive. power always active, average output same power. Thus, almost all active energy flows instantaneously into pla...

Interplay of discharge and gas flow in the atmospheric pressure plasma jets generated with three different discharge modes [N. Jiang, A. L. Ji, and Z. X. Cao, J. Appl. Phys. 106, 013308 (2009); N. Jiang, A. L. Ji, and Z. X. Cao, J. Appl. Phys. 108, 033302 (2010)] has been investigated by simultaneous photographing of both plasma plumes and gas flows in the ambient, with the former being visuali...

Cold Atmospheric Plasma is an ionized gas that has recently been extensively studied by researchers as a possible therapy in dentistry and oncology. Several different gases can be used to produce Cold Atmospheric Plasma such as Helium, Argon, Nitrogen, Heliox, and air. There are many methods of production by which cold atmospheric plasma is created. Each unique method can be used in different b...

A glass substrate treated with a He atmospheric pressure plasma jet gave film-like residue from small droplet of the red wine. This technique was effective in decreasing matrix effect for TXRF analysis low-Z elements.

Fig (Ficus carica L.) is a perishable fruit and it needs to use new techniques in order to increase shelf life of this product. In present study, atmospheric cold plasma as a non-thermal treatment was utilized for preserving fresh fig quality. Dielectric barrier discharge plasma was applied to fruits in two steps. Durations of first treatments were 1 and 5 minutes. Based on this step results, m...

Maskless etching approaches such as microdischarges and atmospheric pressure plasma jets (APPJs) have been studied recently. Nonetheless, a simple, long lifetime, and efficient maskless etching method is still a challenge. In this work, a separated type maskless etching system based on atmospheric pressure He/O2 plasma jet and microfabricated Micro Electro Mechanical Systems (MEMS) nozzle have ...

We used cold atmospheric pressure plasma jet to examine in detail 1O2 generation water. ESR with 2,2,5,5-tetramethyl-3-pyrroline-3-carboxamide, a secondary amine probe, was for the detection of 1O2. Nitroxide radical formation detected after irradiation 2,2,5,5-tetramethyl-3-pyrroline-3-carboxamide solution. An scavenger/quencher inhibited signal intensity induced by irradiation, but this inhib...