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Influence of Biosurfactant on Interactive Forces between Mutans Streptococci and Enamel Measured by Atomic Force Microscopy

Department of Biomedical Engineering, University Medical Centre Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands

View larger version (105K): [in a new window]   Figure 1. Scanning electron micrograph of an enamel particle attached to the AFM cantilever. Note the absence of any glue on the enamel surface. Bar represents 10 µm.

View larger version (19K): [in a new window]   Figure 2. Examples of force-distance curves between S. sobrinus HG 1025 trapped in an Isopore polycarbonate membrane filter and (A) an enamel particle, (B) a biosurfactant-coated enamel particle, (C) an enamel particle with a salivary pellicle, and (D) an enamel particle with a salivary pellicle and biosurfactant-coating. ----, approach curve; —, retraction curve.