TY - JOUR
T1 - Theory for controlling individual self-propelled micro-swimmers by photon nudging I
T2 - Directed transport
AU - Selmke, Markus
AU - Khadka, Utsab
AU - Bregulla, Andreas P.
AU - Cichos, Frank
AU - Yang, Haw
N1 - Publisher Copyright:
© the Owner Societies 2018.
PY - 2018
Y1 - 2018
N2 - Photon nudging is a new experimental method which enables the force-free manipulation and localization of individual self-propelled artificial micro-swimmers in fluidic environments. It uses a weak laser to stochastically and adaptively turn on and off the swimmer's propulsion when the swimmer, through rotational diffusion, points towards or away from its target, respectively. This contribution presents a theoretical framework for the statistics of both 2D and 3D controls. The main results are: The on- A nd off-time distributions for the controlling laser, the arrival time statistics for the swimmer to reach a remote target, and how the experimentally accessible control parameters influence the control, e.g., the optimal acceptance angle for directed transport. The results are general in that they are independent of the propulsion or the actuation mechanisms. They provide a concrete physical picture for how a single artificial micro-swimmer could be navigated under thermal fluctuations-insights that could also be useful for understanding biological micro-swimmers.
AB - Photon nudging is a new experimental method which enables the force-free manipulation and localization of individual self-propelled artificial micro-swimmers in fluidic environments. It uses a weak laser to stochastically and adaptively turn on and off the swimmer's propulsion when the swimmer, through rotational diffusion, points towards or away from its target, respectively. This contribution presents a theoretical framework for the statistics of both 2D and 3D controls. The main results are: The on- A nd off-time distributions for the controlling laser, the arrival time statistics for the swimmer to reach a remote target, and how the experimentally accessible control parameters influence the control, e.g., the optimal acceptance angle for directed transport. The results are general in that they are independent of the propulsion or the actuation mechanisms. They provide a concrete physical picture for how a single artificial micro-swimmer could be navigated under thermal fluctuations-insights that could also be useful for understanding biological micro-swimmers.
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U2 - 10.1039/c7cp06559k
DO - 10.1039/c7cp06559k
M3 - Article
C2 - 29560993
AN - SCOPUS:85045844437
SN - 1463-9076
VL - 20
SP - 10502
EP - 10520
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
IS - 15
ER -