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Recently, the capsule endoscope can be widely used for the diagnosis of digestive organs. It is passively moved by the peristaltic waves of gastro-intestinal tract and thus has some limitations for doctor to get the image of the organ and to diagnose more thoroughly. As a solution of these problems, therefore, a locomotive mechanism of capsule endoscopes has being developed. Our proposed capsule-type...
A simple, label-free microfluidic separation of cancer cells by exploiting difference in cell adhesion. To maximize the adhesion difference, three types of polymeric nanostructures (50 nm pillars, 50 nm perpendicular and parallel lines with respect to the direction of flow) were fabricated using UV- assisted capillary moulding onto glass substrate of PDMS microfluidic channel. The adhesion force of...
Diagnosis using a flexible endoscope in gastro-intestinal tract becomes very important. In addition, the endoscope is a basic tool of diagnosis and treatment for digestive organ. However, the operation of endoscope is very labor intensive work and gives patients some pains. Therefore, the video capsule endoscope is developed for the diagnosis of digestive organs. For its conveniences for diagnosis,...
We present a simple, biomarker-free microfluidic device for separating cancer cells from a mixed solution of normal and cancer cells by difference in adhesion force. A polydimethylsiloxane (PDMS) microfluidic chip was fabricated onto glass substrate using standard soft lithography. Three types of polyurethane acrylate (PUA) nanostructure (50 nm pillar, 50 nm perpendicular groove, 50 nm horizontal...
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