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- W4313704734 abstract "Abstract Introduction Robotics, as one of today's fastest growing disciplines and in support of surgeons, can generate significant advantages for both doctors and patients, such as increased automation of routine procedures or the performance of previously impossible procedures. Microrobotics is the use of microscale robots to be introduced into the body. The aim of this study is to develop a prototype of an autonomous spermatozoon-like microrobot propelled by chemical reactions for navigation in lumens. Methods To study the propulsion of the microrobot, a simulation was carried out in COMSOL. The movement of the microrobot was simulated by applying alternating forces emulating chemical actuation with and without a passive flagellum, in a fluid environment. In addition, a macro-scale prototype was developed. Two motors were used for propulsion with attached propellers. Their speed and the development of the programmed functions for movement were monitored. The microrobot's movement, propulsion and flagellum effect were studied in water. Results The simulations showed that without the flagellum, a drifting movement was generated, stabilising with its presence, as well as adding an additional impulse. The prototype showed similar behaviour to that obtained in the simulations, moving in the desired way. Conclusions It has been shown that the presence of the flagellum, without actuation, generates an additional impulse to the one developed by the initial propulsion. The prototype has also shown the feasibility of the simulations, and the possibility of manufacturing a microrobot on a sub-millimetre scale." @default.
- W4313704734 created "2023-01-08" @default.
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- W4313704734 date "2023-01-04" @default.
- W4313704734 modified "2023-09-27" @default.
- W4313704734 title "AUTONOMOUS SPERMATOZOON-LIKE MICROROBOT WITH CHEMICAL PROPULSION" @default.
- W4313704734 doi "https://doi.org/10.1093/bjs/znac443.029" @default.
- W4313704734 hasPublicationYear "2023" @default.
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