Antibacterial Activity of Positively and Negatively Charged Hematite (α-Fe₂O₃) Nanoparticles to Escherichia coli, Staphylococcus aureus and Vibrio fischeri.

ABSTRACT: In the current study, the antibacterial activity of positively and negatively charged spherical hematite (α-Fe₂O₃) nanoparticles (NPs) with primary size of 45 and 70 nm was evaluated against clinically relevant bacteria Escherichia coli (gram-negative) and Staphylococcus aureus (gram-positive) as well as against naturally bioluminescent bacteria Vibrio fischeri (an ecotoxicological model organism). α-Fe₂O₃ NPs were synthesized using a simple green hydrothermal method and the surface charge was altered via citrate coating. To minimize the interference of testing environment with NP's physic-chemical properties, E. coli and S. aureus were exposed to NPs in deionized water for 30 min and 24 h, coverin

SUBMITTER: Vihodceva S 

PROVIDER: S-EPMC7999532 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature