Effects of Modified Magnetite Nanoparticles on Bacterial Cells and Enzyme Reactions.

ABSTRACT: Current paper presents biological effects of magnetite nanoparticles (MNPs). "Relations of MNP' characteristics (zeta-potential and hydrodynamic diameters) with effects on bacteria and their enzymatic reactions were the main focus.". Photobacterium phosphoreum and bacterial enzymatic reactions were chosen as bioassays. Three types of MNPs were under study: bare Fe₃O₄, Fe₃O₄ modified with 3-aminopropyltriethoxysilane (Fe₃O₄/APTES), and humic acids (Fe₃O₄/HA). Effects of the MNPs were studied at a low concentration range (< 2 mg/L) and attributed to availability and oxidative activity of Fe³⁺, high negative surface charge, and low hydrodynamic diameter of Fe₃O₄/HA,

SUBMITTER: Bondarenko LS 

PROVIDER: S-EPMC7466415 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature