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Theses

Active motion and self-propulsion of polymers and fibers

Abstract : This thesis manuscript deals with the study of two distinct projects. The first deals with the experimental design as well as the theoretical study of a brand new type of engine based on polymer fibers: the fiberdrive. The operation of this engine is based on a new physical concept described here, deformation modes with zero elastic energy (ZEEMs). These deformation modes are driven by a flow of energy that causes elastic deformation within the material. This manuscript develops a theoretical model that is confronted with the first experimental realization of this type of engine. The realized system is the simplest engine in the world, a stator without rotor.The second part of the manuscript introduces the concept of confotronics, the study of system composed of individually switchable units cooperating on a large scale. This concept is implemented in the realization of a DNA-based confotronic fiber as well as in the design of a DNA-based molecular engine.
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Arthur Baumann. Active motion and self-propulsion of polymers and fibers. Physics [physics]. Université de Strasbourg, 2018. English. ⟨NNT : 2018STRAE024⟩. ⟨tel-02073820⟩

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