Captured bacteria. The probiotic Lactobacillus , in blue, snatches the cavity-causing bacteria Streptococcus , in green, preventing the harmful bacteria from attaching to a tooth.
http://news.sciencemag.org/biology/2013/12/can-candies-combat-cavities
http://news.sciencemag.org/biology/2013/12/can-candies-combat-cavities
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