We have developed a user-friendly microfluidic device for the study of gradient-mediated
bacterial behaviors, including chemotaxis. This device rapidly establishes linear …

Chemotaxis is a phenomenon which enables cells to sense concentrations of certain
chemical species in their microenvironment and move towards chemically favorable regions …

Microfluidics is revolutionizing the way we study the motile behavior of cells, by enabling
observations at high spatial and temporal resolution in carefully controlled …

Diffusion-based microfluidic devices can generate steady, arbitrarily shaped chemical
gradients without requiring fluid flow and are ideal for studying chemotaxis of free-swimming …

Chemotaxis is a fundamental bacterial response mechanism to changes in chemical
gradients of specific molecules known as chemoattractant or chemorepellent. The …

Chemotaxis allows bacteria to approach sources of attractant chemicals or to avoid sources
of repellent chemicals. Bacteria constantly monitor the concentration of specific …

We studied the response of swimming Escherichia coli (E. coli) bacteria in a comprehensive
set of well-controlled chemical concentration gradients using a newly developed microfluidic …

Motile bacteria bias the random walk of their motion in response to chemical gradients by
the process termed chemotaxis, which allows cells to accumulate in favorable environments …

Microfluidic technology allows fast and precise measurement of chemotaxis responses to
both attractant and repellent signals. One of the major drawbacks of current microfluidic …

We present a diffusion-driven and long-range concentration gradient generator that uses
hydrogel as a porous membrane to prevent convection flows but allow the diffusion of cell …