Antibacterial effect of singlet oxygen depending on bacteria surface charge.
Photodiagnosis Photodyn Ther
; 39: 102975, 2022 Sep.
Article
em En
| MEDLINE
| ID: mdl-35724937
ABSTRACT
Here, we investigated the bactericidal effects of two types of photoinduced reactive oxygen species (ROS), superoxide anion and singlet oxygen, on bacteria with distinct surface charges. We fabricated photofunctional polymer films (PFPFs) capable of generating both types of ROS, and they were subjected to photodynamic inactivation tests for 12 various strains of Acinetobacter baumannii. The results showed that the type I ROS (superoxide anion) was significantly dependent on the surface charge of the bacteria owing to charge-charge repulsion, while the type II ROS (singlet oxygen) was independent of the surface charge of the bacteria. These results could be significant in enhancing treatment efficiency in the clinical field.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fotoquimioterapia
/
Oxigênio Singlete
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article