Application of D-Amino Acids as Biofilm Dispersing Agent in Dental Unit Waterlines

Figure 2

2.5 mm pieces of DUWL tube after incubation with distilled water, D-amino acids mixture (10 mM each), or 0.1 M hydrochloric acid (dissolvent control) for 5 days (a). Optical density at 600 nm (OD⁶⁰⁰) of dispersed biofilms in flushing water collected after the 2.5 mm pieces of DUWLs were incubated with distilled water, D-amino acids mixture (10 mM each), or 0.1 M HCl (dissolvent control) for 5 days (b).

(a)

(b)