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. 2018 Nov 1;8:16154. doi: 10.1038/s41598-018-34366-y

Figure 3.

Figure 3

Analysis of the hardness of polysaccharide particles isolated from an S. mutans biofilm. AFM images (upper) of polysaccharide particle morphologies and force-distance curves (lower) after treatment with (a) DW, (b) zinc chloride, (c) erythritol and (d) a zinc-erythritol mixture for 10 min. The polysaccharide particles were treated with 6.6 mM zinc chloride, 19.8 mM erythritol or mixtures thereof. The inverted triangle represents where the force-distance curve was measured.