Electrical Charging of Bioceramics by Corona Discharge
Journal of Electrostatics 2022
P.R. Prezas, Jurijs Dehtjars, Hermanis Sorokins, M.M. Costa, M.J. Soares, M.P.F. Graca

Hydroxyapatite is applied as a coating on orthopedic and dental implants. It directly bonds with bone tissue, improving the implant integration. In vivo biological studies have shown that charged hydroxyapatite may take half the time to bond with bone tissue, compared to non-charged hydroxyapatite. However, there is a challenge: how to charge the coatings? Conventional thermoelectrical poling is not applicable. In this work, a solution is proposed: the corona triode charging. It is demonstrated the possibility of achieving a large and stable negative charge density on hydroxyapatite pellets. The corona discharge has a promising potential in orthopedics and oral implantology.

Corona triode charging | Hydroxyapatite | Non-contact electrical charging | Orthopedics

Prezas, P., Dehtjars, J., Sorokins, H., Costa, M., Soares, M., Graca, M. Electrical Charging of Bioceramics by Corona Discharge. Journal of Electrostatics, 2022, Vol. 115, Article number 103664. ISSN 0304-3886. Available from: doi:10.1016/j.elstat.2021.103664

Publication language
English (en)
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