… -range concentration gradient generator that … bacterial chemotaxis in a microfluidic device.
Using this device, we characterized the critical concentrations associated with the chemotactic …

… of a single bacterium and to quantify the degree of chemotaxis by analyzing … concentration
gradients of L-aspartate is obtained in such a manner that the degree of bacterial chemotaxis …

… for bacterial chemotaxis applications for two reasons. First, design 3 establishes a gradient
whose … The concentration gradient seen by the cells is therefore well approximated by dC/ds (…

… of bacteria may be examined. Our purpose here is to relate certain measurable statistical
quantities concerning bacterial chemotaxis to the parameters of a model for bacterial motion for …

… DISCUSSION The results of the investigations we describe lead to the conclusion that bacteria
detect gradients by the use of a temporal sensing mechanism, ie, they have some sort of "…

… in the cell concentration arises between this cell-depleted region and a cell-rich region further
below, where no significant oxygen concentration gradients develop before the oxygen is …

… migration in response to concentration gradients of attractants and repellents. … chemotaxis
model for presenting precise and stable concentration gradients of chemoeffectors to bacteria …

… Chemotaxis allows bacteria to follow gradients of nutrients and other environmental stimuli.
The bacterium Escherichia coli performs chemotaxis … in the preferred gradient direction. The …

… velocity of the bacteria moving up the gradient depends on the … concentration as well as
the rate of change of concentration. The gradient, dc/dx, is constant throughout, so the bacteria …

… How bacterial chemotaxis is performed is much better understood than why. … Chemotaxis
is advantageous for bacteria in situations in which chemical gradients guide bacteria within …