Hybrid atmospheric pressure plasma generation and DC electrospray aerosolization of plasma‐activated water for surface pathogen disinfection

We demonstrate the synergistic effects of combining atmospheric pressure plasma generation together with aerosolization resultant plasma-activated water using direct current electrospraying for effective chemical-free spray-based surface disinfection. Besides facilitating efficient aerosol pretreated water, DC electrospray itself also constitutes a secondary source that can further enhance plasma-activation to result in increase concentration reactive species aerosols. This, turn, be seen translate into an enhancement bacteria inactivation efficacy. Additionally, we show pretreating stainless steel surfaces this hybrid spray-deposition technique before pathogen exposure leads almost complete colonies.