Scanning electron microscopy (SEM) images of the clogged plastic biliary stents obtained from in vitro set-up. Scanning electron microscopy (SEM) images.

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Scanning electron microscopy (SEM) images of the clogged plastic biliary stents obtained from in vitro set-up. Scanning electron microscopy (SEM) images of the clogged plastic biliary stents obtained from in vitro set-up. (A) A small dissected portion of a clogged stent at lower magnification. (B, C) Zoomed-in images of the places denoted by full circle in (A). Even though the area looks ‘clean’ in (A) the presence of large number of bacteria showing the formation of ‘bacteria lawn’ can be easily noticed. (D, E) Zoomed-in image of the area denoted by dotted circle in (A). These SEM images show the presence of ‘bacterial lawn’ along with fibre which constitute the clog. Sachin Surwase et al. BMJ Innov 2018;4:39-45 Copyright © BMJ Publishing Group Ltd & British Cardiovascular Society. All rights reserved.