• Corpus ID: 249494447

Ray Optics for Gliders

  title={Ray Optics for Gliders},
  author={Tyler D. Ross and Dino Osmanovi'c and John F. Brady and Paul W. K. Rothemund},
Control of self-propelled particles is central to the development of many microrobotic tech-nologies, from dynamically reconfigurable materials to advanced lab-on-a-chip systems. How-ever, there are few physical principles by which particle trajectories can be specified and can be used to generate a wide range of behaviors. Within the field of ray optics, a single principle for controlling the trajectory of light—Snell’s law—yields an intuitive framework for engineering a broad range of devices… 

Figures from this paper


Boundaries can steer active Janus spheres
Direct motion of a specific class of catalytic motors when moving in close proximity to solid surfaces is reported through active quenching of their Brownian rotation by constraining it in a rotational well, caused not by equilibrium, but by hydrodynamic effects.
Optimal navigation strategies for active particles
The quest for the optimal navigation strategy in a complex environment is at the heart of microswimmer applications like cargo carriage or drug targeting to cancer cells. Here, we formulate a
Three-Dimensional Superlocalization Imaging of Gliding Mycoplasma mobile by Extraordinary Light Transmission through Arrayed Nanoholes.
Super-resolved sampling of live bacteria based on extraordinary optical transmission (EOT) of light provides a powerful tool for investigation of biomolecular dynamics at subwavelength precision.
Dissipative shocks behind bacteria gliding
  • E. Virga
  • Engineering, Biology
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2014
This paper solves, in full, a non-linear mechanical theory that treats as dissipative shocks both the point where the extruded slime filament comes into contact with the substrate, called the filament’s foot, and the pore on the bacterium outer surface from where the filament is ejected.
Mechanisms of Microtubule Guiding on Microfabricated Kinesin-Coated Surfaces: Chemical and Topographic Surface Patterns
This study investigates the principles by which microtubules, serving as shuttle units, are guided along micrometer-scale kinesin-coated chemical and topographical tracks, where the efficiency of guidance is determined by events at the track boundary.
Vesicles with internal active filaments: self-organized propulsion controls shape, motility, and dynamical response
It is proposed that engineered flexocytes with desired mechanosensitive capabilities enable the construction of soft-matter microbots and predicts a correlation between motility patterns, shapes, characteristics of the internal forces, and the response to micropatterned substrates and external stimuli.
Dry Aligning Dilute Active Matter
  • H. Chaté
  • Physics
    Annual Review of Condensed Matter Physics
  • 2020
Active matter physics is about systems in which energy is dissipated at some local level to produce work. This is a generic situation, particularly in the living world but not only. What is at stake
Viscotaxis: Microswimmer Navigation in Viscosity Gradients.
The results shed new light on viscotaxis in Spiroplasma and Leptospira and suggest that dynamic body shape changes exhibited by both types of microorganisms may have an unrecognized functionality: to prevent them from drifting to low viscosity regions where they swim poorly.
A microrotary motor powered by bacteria
A microrotary motor composed of a 20-μm-diameter silicon dioxide rotor driven on a silicon track by the gliding bacterium Mycoplasma mobile is described, which is fueled by glucose and inherits some of the properties normally attributed to living systems.
Bioinspired microrobots
This Review highlights soft, responsive and active materials for the development of (semi-)autonomous microrobots and shows that smart, stimuli-responsive materials can act as on-board sensors and actuators and that ‘active matter’ enables autonomous motion, navigation and collective behaviours.