The inner structure of the flagellum in mammal sperm involves the coordinated activation of proteins, resulting in a rhythmic sliding motion between adjacent microtubules. This sliding motion generates torsional forces and rotational bending that travel from the base to the flagellum's tip, producing a spinning movement of the entire structure. This component consists of a lengthy, mobile, and flexible tube containing multiple sets of thinner rods arranged in pairs along its length in a radial organization, leading to the spiral movement of the entire element. This innovation can potentially revolutionize the development of fluid propulsion processes at both macro and micro scales. It can be applied to liquid and gas flow processes, hydrodynamic systems, kinetic and mechanical energy generators, and biomedical devices.
