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National Repository of Grey Literature 1 records found  Search took 0.05 seconds. 
A novel approach imaging engorged ticks: Micro-CT scanning of Ixodes ricinus fed on blood enriched with gold nanoparticles
 ONDRUŠ, Jaroslav
Micro-computed tomography (micro-CT) is an exceptional non-destructive imaging modality, which can be used to visualize both external and internal morphology of arthropods like ticks. The major micro-CT drawback is the soft tissues visualization, which require pre-examination contrasting steps. The commonly employed tick contrasting methods are drying and immersion in a solution containing a high-atomic number element, which both cause major deformation and shrinkage of examined specimens. The aim of this study was to develop a new tick contrasting approach to bypass these limitations. We show that adult Ixodes ricinus females engorged in vitro on blood enriched with gold nanoparticles with polyethylene glycol coating can be scanned with excellent contrast. By utilizing this technique based on the hematophagous nature of the ticks, we were able to observe midgut lumen, midgut epithelium and rectal sac in their natural state. In addition, we were able to precisely calculate the midgut volume.
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