Speckle Tweezers in Action: Manipulating the Run-and-Tumble of Bacteria

TL;DR

This paper demonstrates how optical speckle tweezers can control bacterial motility, specifically modulating the run-and-tumble behavior of Escherichia coli, offering a new non-invasive tool for active matter research.

Contribution

It introduces the use of optical speckle patterns to manipulate bacterial motility, providing a novel method for controlling active particles.

Findings

Speckle tweezers effectively modulate bacterial run-and-tumble behavior.

Optical forces can alter bacterial motility patterns.

The method offers a non-invasive way to study active matter systems.

Abstract

This study explores the use of optical speckle tweezers (ST) to manipulate the motility of Escherichia coli bacteria. By employing the generated speckle patterns, we demonstrate the ability to control bacterial dynamics through optical forces. Our findings reveal that ST effectively modulates run-and-tumble behavior and alters motility patterns, providing insights into active matter systems. The results establish optical ST as a versatile and non-invasive tool for investigating and controlling the behavior of active particles, offering potential applications in active matter research.