Cold plasma within a stable supercavitation bubble - A breakthrough technology for efficient inactivation of viruses in water.
Environ Int
; 182: 108285, 2023 Dec.
Article
en En
| MEDLINE
| ID: mdl-37972530
Water scarcity, one of the most pressing challenges we face today, has developed for many reasons, including the increasing number of waterborne pollutants that affect the safety of the water environment. Waterborne human, animal and plant viruses represent huge health, environmental, and financial burden and thus it is important to efficiently inactivate them. Therefore, the main objective of this study was to construct a unique device combining plasma with supercavitation and to evaluate its efficiency for water decontamination with the emphasis on inactivation of viruses. High inactivation (>5 log10 PFU/mL) of bacteriophage MS2, a human enteric virus surrogate, was achieved after treatment of 0.43 L of recirculating water for up to 4 min. The key factors in the inactivation were short-lived reactive plasma species that damaged viral RNA. Water treated with plasma for a short time required for successful virus inactivation did not cause cytotoxic effects in the in vitro HepG2 cell model system or adverse effects on potato plant physiology. Therefore, the combined plasma-supercavitation device represents an environmentally-friendly technology that could provide contamination-free and safe water.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Virus
/
Gases em Plasma
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Environ Int
Año:
2023
Tipo del documento:
Article
País de afiliación:
Eslovenia
Pais de publicación:
Países Bajos