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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 capsule-type endoscope is developed for the diagnosis of digestive organs. For its conveniences for diagnosis,...
This paper presents a novel technique to fabricate complex 3 dimensional thin polymer structures with different geometries on both sides for hybrid sensors and actuators. To realize complex 3D polymer structures, we fabricate a 3D-micromolding aligner which can make two molding masters be aligned within 2pm and allows applying high pressure to construct thin membrane under 10im. Using this system,...
We present a microfabricated three-dimensional (3-D) hybrid biopolymer microcantilever which can measure the contractile force of cardiomyocytes and analyze the force dependence on different types of surface. To make different conditions of the cell seeding surface, we fabricated the specific type of cantilever which was grooved on the surface. The presented cantilever was facilitated to measure bending...
We successfully demonstrate that a thermally actuated reversible hydrogel, the poly N-isopropylacrylamide (PNIPAAm), based clampers holds the intestines of a pig during the inchworm motion of microrobot. Although there are no direct relationship between hydro affinity and friction force, we found the significant friction force difference according to the surface condition change of PNIPAAm hydrogel...
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