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SEM observation of Streptococcus mutans.
Notes: (A–L) SEM micrographs of S. mutans after incubation for 4 h (A–D), 24 h (E–H), and 72 h (I–L). Application of Au clusters and LED irradiation decreased bacterial accumulation and biofilm formation compared to control (no application of Au clusters and no light irradiation) and LED light alone. Scale bar represents 100 μm (A–L).
Abbreviations: LED, light-emitting diode; SEM, scanning electron microscopy.
