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

Properties of a differentially pumped constricted hollow anode plasma source. Mujawar, M.A; Karkari, S.K; Turner, M.M. Plasma Sources Science and Technology 2011

Low-temperature Plasmas

Characterisation of an RF power splitter for multi-tile PECVD systems application. Michna, T; Ellingboe, A.R. Current Applied Physics 2011

Low-temperature Plasmas, Diagnostics and Sensors

Development of a real time monitor and multivariate method for long term diagnostics of atmospheric pressure dielectric barrier discharges: Application to He, He/N2, and He/O2 discharges. O’Connor, N; Milosavljevi, V; Daniels, S. Review of Scientific Instruments 2011

Low-temperature Plasmas

Spatial structure of plasma potential oscillation and ion saturation current in VHF multi-tile electrode plasma source. Ryan, K; O’Farrell, D; Ellingboe, A.R. Current Applied Physics 2011

Low-temperature Plasmas, Biomedical Applications

Experimental-modeling study of an atmospheric-pressure helium discharge propagating in a thin dielectric tube. Jansky, J; Algwari, Q.T; O’Connell, D; Bourdon, A. IEEE Transactions on Plasma Science 2012

Biomedical Applications, Low-temperature Plasmas

Cold atmospheric pressure plasma jets: Interaction with plasmid DNA and tailored electron heating using dual-frequency excitation. Niemi, K; O’Neill, C; Cox, L.J; Waskoenig, J; Hyland, W.B; McMahon, S.J; Reuter, S; Currell, F.J; Graham, W.G; O’Connell, D; Gans, T. AIP Conference Proceedings 2012

Low-temperature Plasmas, Biomedical Applications

Eradication of Pseudomonas aeruginosa Biofilms by Atmospheric Pressure Non-Thermal Plasma. Alkawareek, M.Y; Algwari, Q.T; Laverty, G; Gorman, S.P; Graham, W.G; O’Connell, D; Gilmore, B.F. PLoS ONE 2012

Low-temperature Plasmas, Biomedical Applications

Application of atmospheric pressure nonthermal plasma for the in vitro eradication of bacterial biofilms. Alkawareek, M.Y; Algwari, Q.T; Gorman, S.P; Graham, W.G; O’Connell, D; Gilmore, B.F. FEMS Immunology and Medical Microbiology 2012

Diagnostics and Sensors, Low-temperature Plasmas

Two-photon absorption laser-induced fluorescence measurements of atomic nitrogen in a radio-frequency atmospheric-pressure plasma jet. Wagenaars, E; Gans, T; O’Connell, D; Niemi, K. Plasma Sources Science and Technology 2012

Low-temperature Plasmas, Diagnostics and Sensors

Ion energy distribution measurements in rf and pulsed dc plasma discharges. Gahan, D; Daniels, S; Hayden, C; Scullin, P; O’Sullivan, D; Pei, Y.T; Hopkins, M.B. Plasma Sources Science and Technology 2012

Low-temperature Plasmas, Diagnostics and Sensors

Characterization of an asymmetric parallel plate radio-frequency discharge using a retarding field energy analyzer. Gahan, D; Daniels, S; Hayden, C; O’Sullivan, D.O; Hopkins, M.B. Plasma Sources Science and Technology 2012

Low-temperature Plasmas, Simulations and Modelling

Tailoring electron energy distribution functions through energy confinement in dual radio-frequency driven atmospheric pressure plasmas. Oneill, C; Waskoenig, J; Gans, T. Applied Physics Letters 2012

Low-temperature Plasmas, Diagnostics and Sensors, Biomedical Applications

Detection of atomic oxygen and nitrogen created in a radio-frequency-driven micro-scale atmospheric pressure plasma jet using mass spectrometry. Maletić, D; Puač, N; Lazović, S; Malović, G; Gans, T; Schulz-Von Der Gathen, V; Petrović, Z.L. Plasma Physics and Controlled Fusion 2012

Low-temperature Plasmas, Simulations and Modelling

Numerical effects on energy distribution functions in particle-in-cell simulations with Monte Carlo collisions: Choosing numerical parameters. Turner, M.M. Plasma Science and Technology 2013

Low-temperature Plasmas, Simulations and Modelling

Improved fluid simulations of radio-frequency plasmas using energy dependent ion mobilities. Greb, A; Niemi, K; O’Connell, D; Ennis, G.J; Macgearailt, N; Gans, T. Physics of Plasmas 2013

Low-temperature Plasmas, Biomedical Applications

The antimicrobial effects of helium and helium-air plasma on Staphylococcus aureus and Clostridium difficile. Galvin, S; Cahill, O; O’Connor, N; Cafolla, A.A; Daniels, S; Humphreys, H. Letters in Applied Microbiology 2013

Low-temperature Plasmas

Investigation of atomic oxygen density in a capacitively coupled O 2/SF6 discharge using two-photon absorption laser-induced fluorescence spectroscopy and a Langmuir probe. Kechkar, S; Swift, P; Conway, J; Turner, M; Daniels, S. Plasma Sources Science and Technology 2013

Low-temperature Plasmas, Simulations and Modelling

Theory for the self-bias formation in capacitively coupled plasmas excited by arbitrary waveforms. Lafleur, T; Chabert, P; Turner, M.M; Booth, J.P. Plasma Sources Science and Technology 2013