We demonstrate a new gas-based OH generation source using low power RF-driven atmospheric pressure plasma configured to deliver the radical flux into far effluent region, well away from interference other factors such as electric fields, currents, and UV radiation. Using He-H2O gas chemistry isolated laboratory air, generated consists of H2O2 OH, varying with H2O vapour content absorbed density...

Plasma-based ammonia synthesis is studied as an option for electrifying the chemical industry. However, energy efficiency of plasma-based severely limited by decomposition in plasma phase. We show that use zeolite 4A adsorbent situ removal from phase suppresses product decomposition, thereby increasing yield. It found yield plasma-chemical with improved a factor 2 compared to steady-state synth...

We refer to the fourth state of matter as plasma, indicating ionized, electrically quasi-neutral gas. Electrical discharge in a gas medium is normal and easy way turning into plasma moderate pressure condition. The electron temperature, density, temperature characterize quality plasma. Particularly domain terms we have room design discharges be thermal (both are equilibrium) or non-thermal (a c...

The control of cell-material interactions is the key to a broad range of biomedical interactions. Gradient surfaces have recently been established as tools allowing the high-throughput screening and optimization of these interactions. In this paper, we show that plasma polymer gradients can reveal the subtle influence of surface chemistry on embryonic stem cell behavior and probe the mechanisms...

Atmospheric pressure plasma jets are well-known in the plasma chemistry community because of their novel applications. However, in spite of a large amount of publications, the physical chemistry of plasma jet/surface interactions is still unknown. In this work, an atmospheric pressure plasma jet (APPJ) in pure argon will be used to modify the surface of PET non-woven textiles. In a first part o...

The purpose of a plasma chemistry model is prediction of chemical species densities, including understanding the mechanisms by which such species are formed. These aims are compromised by an uncertain knowledge of the rate constants included in the model, which directly causes uncertainty in the model predictions. We recently showed that this predictive uncertainty can be large—a factor of ten ...