Can the micro-motion stroke store energy

What happens when a motor recharges the power stroke element?

In the meanwhile the motor recharges the power stroke element (performs the transition from the lower energy well B to the higher energy well A 1 in the bistable potential). During the next step 2 → 3, as the rocking force changes its sign, the new configuration of the energy landscape forces the motor into backward direction along the x axis.

Could a power stroke be reversed while a motor stayed attached?

An interesting regulatory mechanism would emerge if the power stroke could be reversed while the motor stayed attached to actin. This would cause a sudden release of tension under load (that is, a negative compliance) without cargo detachment.

Can a single-material system mimic stroke-like trajectories?

Efforts to mimic such dynamics synthetically rely on multimaterial designs but face limits to programming arbitrary motions or diverse behaviours in one structure3–8. Here we show how diverse, complex, non-reciprocal, stroke-like trajectories emerge in a single-material system through self-regulation.

Does recharging a power stroke take place simultaneously?

Here again the motor advance and the recharging of the power stroke take place simultaneously. In Fig. 4.37 we compare the force velocity relations at different temperatures D and fixed rocking amplitude A = 2.5. At zero temperature all three systems exhibit purely mechanical depinning behavior without showing any “anti-dissipation”.

How does Rocking force affect the power stroke mechanism?

This means that the rocking force affects the power stroke mechanism directly instead of implicitly modifying the internal state of this device through other external degrees of freedom.

What is reversibility of a power stroke?

Reversibility of the power stroke at higher loads provides, on the one hand, a microscopic mechanism for backward sliding at super-stall forces 19. On the other hand, reversibility of the power stroke is equivalent to a highly nonlinear response, which can lead to mechanical synchronizations and oscillations.