Low-temperature Plasmas

Our low-temperature plasma research develops solutions for global challenges in high-tech manufacturing, environment, and medicine, through coupling advanced plasma sensing with simulations.

About the Research Area

Low-temperature plasmas (LTPs) have the ability to generate and deliver reactive atomic and molecular species, UV, charged particles, and electric fields to biological targets under ambient conditions. LTPs can stimulate specific biological responses by producing Reactive Oxygen and Nitrogen Species (RONS), which mediate many physiological processes such as cell-to-cell signalling, immune response, wound healing, and cell death. These plasma-produced species are expected to mimic the functions of their native counterparts and offer unique synergies capable of stimulating specific biological responses. Our research focuses on understanding the plasma-driven mechanisms of action and engineering controllable plasma delivery strategies to enhance clinical therapies. We collaborate with many partners on this theme.

Low-temperature Plasmas Publications

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Low-temperature Plasmas, Environmental Applications

Cold Plasma in Modified Atmospheres for Post-harvest Treatment of Strawberries. Misra, N.N; Moiseev, T; Patil, S; Pankaj, S.K; Bourke, P; Mosnier, J.P; Keener, K.M; Cullen, P.J. Food and Bioprocess Technology 2014

Low-temperature Plasmas, Biomedical Applications, Environmental Applications

Influence of high voltage atmospheric cold plasma process parameters and role of relative humidity on inactivation of Bacillus atrophaeus spores inside a sealed package. Patil, S; Moiseev, T; Misra, N.N; Cullen, P.J; Mosnier, J.P; Keener, K.M; Bourke, P. Journal of Hospital Infection 2014

Low-temperature Plasmas, Biomedical Applications

Post-discharge gas composition of a large-gap DBD in humid air by UV-Vis absorption spectroscopy. Moiseev, T; Misra, N.N; Patil, S; Cullen, P.J; Bourke, P; Keener, K.M; Mosnier, J.P. Plasma Sources Science and Technology 2014

Low-temperature Plasmas, Biomedical Applications

Afterglow chemistry of atmospheric-pressure helium-oxygen plasmas with humid air impurity. Murakami, T; Niemi, K; Gans, T; O’Connell, D; Graham, W.G. Plasma Sources Science and Technology 2014

Low-temperature Plasmas, Biomedical Applications

Cold atmospheric pressure plasma and decontamination. Can it contribute to preventing hospital-acquired infections?. O’Connor, N; Cahill, O; Daniels, S; Galvin, S; Humphreys, H. Journal of Hospital Infection 2014

Low-temperature Plasmas, Biomedical Applications

Interactions of a non-thermal atmospheric pressure plasma effluent with PC-3 prostate cancer cells. Gibson, A.R; McCarthy, H.O; Ali, A.A; O’Connell, D; Graham, W.G. Plasma Processes and Polymers 2014

Low-temperature Plasmas, Biomedical Applications

Cold air plasma to decontaminate inanimate surfaces of the hospital environment. Cahill, O.J; Claro, T; O’Connor, N; Cafolla, A.A; Stevens, N.T; Daniels, S; Humphreys, H. Applied and Environmental Microbiology 2014

Low-temperature Plasmas, Diagnostics and Sensors

Energy resolved actinometry for simultaneous measurement of atomic oxygen densities and local mean electron energies in radio-frequency driven plasmas. Greb, A; Niemi, K; O’Connell, D; Gans, T. Applied Physics Letters 2014

Low-temperature Plasmas, Simulations and Modelling

Equivalence of the hard-wall and kinetic-fluid models of collisionless electron heating in capacitively coupled discharges. Lafleur, T; Chabert, P; Turner, M.M; Booth, J.P. Plasma Sources Science and Technology 2014

Low-temperature Plasmas

Temporal evolution of electron density in a low pressure pulsed two-frequency (60 MHz/2 MHz) capacitively coupled plasma discharge. Sirse, N; Jeon, M.H; Yeom, G.Y; Ellingboe, A.R. Plasma Sources Science and Technology 2014

Low-temperature Plasmas, Biomedical Applications

Low temperature plasma causes double-strand break DNA damage in primary epithelial cells cultured from a human prostate Tumor. Hirst, A.M; Frame, F.M; Maitland, N.J; O’Connell, D. IEEE Transactions on Plasma Science 2014

Low-temperature Plasmas, Biomedical Applications

A spatially resolved retarding field energy analyzer design suitable for uniformity analysis across the surface of a semiconductor wafer. Sharma, S; Gahan, D; Kechkar, S; Daniels, S; Hopkins, M.B. Review of Scientific Instruments 2014

Low-temperature Plasmas, Simulations and Modelling

Investigation of absolute atomic fluorine density in a capacitively coupled SF6/O2/Ar and SF6/Ar discharge. Kechkar, S; Babu, S.K; Swift, P; Gaman, C; Daniels, S; Turner, M. Plasma Sources Science and Technology 2014

Low-temperature Plasmas

Interpreting the behavior of a quarter-wave transmission line resonator in a magnetized plasma. Gogna, G.S; Karkari, S.K; Turner, M.M. Physics of Plasmas 2014

Low-temperature Plasmas

Attenuation of wall disturbances in an electron cyclotron resonance oxygen-argon plasma using real time control. Keville, B; Gaman, C; Zhang, Y; Holohan, A.M; Turner, M.M; Daniels, S. Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films 2014

Low-temperature Plasmas

Observations of a mode transition in a hydrogen hollow cathode discharge using phase resolved optical emission spectroscopy. Dixon, S; Charles, C; Dedrick, J; Gans, T; O’Connell, D; Boswell, R. Applied Physics Letters 2014