Microfluidics Application: Chemotaxis
When an organism moves in response to a chemical stimulus it is said that Chemotaxis has happened.
Due to some chemicals that are in the environment the organisms, such as Somatic cells, bacteria, single-cell or multicellular organisms, direct their movements.
When the chemotaxis movements occur toward a higher concentration of the chemical, it is said that is a positive movement.
On the contrary, when the movement is done in the opposite direction, toward the lowest concentration, it is said that is a negative movement.
In addition, if it is nondirectional or randomly directed, the chemotaxis will be called Chemokinesis.
Chemotaxis is done with two independent chemoattractants.
Even if they are independent, we can say that they are interrelated processes-motility and directionality and both of them are regulated by extracellular stimuli.