Objective:To study the bactericidal effect and bacterial inhibitory ability of magnesium oxide nanoparticles in Hebei Messi Biology Co., Ltd
METHODS: Different amounts of magnesium oxide were dispersed on the carrier of infected bacteria for different times, and the killing rate was calculated to evaluate the bactericidal ability of magnesium oxide; different amounts of mixed bacterial solution of magnesium oxide were placed in the shaker for different times, and the inhibition rate was calculated to evaluate the inhibition ability of magnesium oxide.
①The nano-magnesium oxide could effectively kill Escherichia coli, and also had a significant effect on the black variant bacterium Bacillus subtilis;
②Magnesium oxide nanoparticles had good inhibition effect on Staphylococcus aureus and Bacillus subtilis black variant bacilli;
(3) The abrasive, alkaline and oxidizing properties of nano-oxide as well as the electrostatic adsorption of microorganisms make it have antibacterial and bactericidal effects.
Conclusion:The nano-magnesium oxide has strong bactericidal effect and antibacterial ability.