Plasma Chemistry and Plasma Processing

, Volume 38, Issue 3, pp 535–556 | Cite as

Characterization of an Air-Based Coaxial Dielectric Barrier Discharge Plasma Source for Biofilm Eradication

  • Juliana Soler-Arango
  • Graciela Brelles-Mariño
  • Antonio Rodero
  • Maria C. Garcia
Original Paper


Air-based atmospheric-pressure cold plasmas are a source of charged particles, excited species, radicals, and UV rays, known to induce degradation of biomaterials. In this work we characterize an air-based Dielectric Barrier Discharge plasma source designed for biofilm eradication, and study plasmas generated under different conditions by Optical Emission Spectroscopy. The main excited species in air-based plasmas are N2 (C3Πu) molecules and the gas temperatures never exceed 335 K, decreasing as air amounts increase in the feeding gas. Excited oxygen atoms and OH species are only detected in discharges generated in argon-containing gases. The temperature of the effluent remains below 308 K. Air-based plasmas are useful for biofilm eradication as they produce high amounts of ozone at a low gas temperature.


Atmospheric plasmas Biofilm eradication Cold plasmas Gas temperature Optical emission spectroscopy 



Authors thank the European Regional Development Funds program (EU-FEDER) and the MINECO (Project MAT2016-79866-R) for financial support. Authors are also grateful to the Física de Plasmas: Diagnosis, Modelos y Aplicaciones (FQM 136) research group of Regional Government of Andalusia for technical and financial support. Authors also acknowledge Prof. Lourdes Arce for her scientific and technical support with ozone determination. Authors acknowledge Dr. Diana Grondona and Dr. Leandro Giuliani (INFIP, UBA-CONICET) for providing the plasma device and Dr. Manuel Torres for his technical support. Juliana Soler-Arango is indebted to Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina, and Asociación Universitaria Iberoamericana de Posgrado (AUIP), Spain, for fellowships.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Center for Research and Development on Industrial Fermentations, Consejo Nacional de Investigaciones Científicas y Técnicas (CINDEFI, CCT-LA PLATA-CONICET), Facultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
  2. 2.Department of PhysicsUniversity of CordobaCórdobaSpain
  3. 3.Department of Applied PhysicsUniversity of CordobaCórdobaSpain

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