Assessing the dynamic biofilm removal of sulfonated phenolics using CP-OCT

Citation data:

Progress in Biomedical Optics and Imaging - Proceedings of SPIE, ISSN: 1605-7422, Vol: 10044, Page: 1004409

Publication Year:
2017
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DOI:
10.1117/12.2254624
Author(s):
Peter Rechmann, Daniel Fried, K. Englund, J. Nikrad, R. Jones
Publisher(s):
SPIE-Intl Soc Optical Eng
Tags:
Physics and Astronomy, Materials Science, Medicine
conference paper description
Examining the physical mechanisms related to biofilm removal of sulfonated phenolics (SP) is difficult using conventional microscopy techniques. A custom flow cell system integrated with a real time cross polarization optical coherence tomography system investigated the dynamic speed of biofilm removal when oral multi-species biofilms are exposed to SP under sheer stress. The Near infrared 1310-nm CP-OCT system non-destructively imaged fluid immersed oral biofilms at nearly 30 frames/s. This dynamic imaging was able to determine the cohesive and adhesion related disruption of SP on oral biofilms adhering to tooth like surfaces. For multi-species biofilms that are initially grown without the presence of sucrose, the disruption of biofilms on saliva coated hydroxyapatite (HA) is dominated as a adhesive failure at the HA-biofilm interface. For multi-species biofilms that are grown in the presence of sucrose, the disruption is dominated by cohesive disruption followed by adhesive failure. This novel CP-OCT flow cell assay has the potential to examine rapid interactions between anti-biofilm agents and tooth like surfaces.

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