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Eight opto-thermocapillary flow-addressed bubble (OFB) microrobots were independently actuated in phosphate-buffered saline (PBS) in an open reservoir. The bubble microrobots were nucleated using opto-thermal heating of the fluid medium and independently controlled by a computer-generated holographic (CGH) control system. Independent actuation of multiple microrobots in PBS solution demonstrates the...
Precise control and point-to-point actuation of opto-thermocapillary flow addressed (OFB) bubble microrobots are critical for applications in micromanipulation. Here, we have developed and demonstrated a hybrid closed-loop control system capable of automated point-to-point actuation of a bubble microrobot in linear trajectories, and semi-automated vision-based position updates of a bubble microrobot...
Four opto-thermocapillary flow-addressed bubble (OFB) microrobots were automatically actuated to cage a microbead. These microrobots were created automatically at a precise location of the working area and actuated using an open-loop feedback control system, with an image-processing algorithm to determine optimal paths for each microrobot. The image-processing algorithm determined the microbead location...
Twenty-four bubble microrobots were opto-thermally actuated in parallel. The bubble microrobots were independently controlled by a computer-generated holographic (CGH) control system. This work demonstrates the actuation of many microrobots that are capable of performing an assigned task such as micro-assembly with increased throughput. To the best knowledge of the authors, these are the most microrobots...
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