Figure 1From: Enhancement of the killing effect of low-temperature plasma on Streptococcus mutans by combined treatment with gold nanoparticles Enhanced killing effect can be achieved using combined gold nanoparticle (gNP) and low-temperature plasma treatment for Streptococcus mutans cultured on a cover glass. Bacterial viability was assessed by plate counting. The difference between the death rates for plasma-only and plasma plus gNPs was statistically significant (p < 0.05).Back to article page