Imagine you spill your drink and miss some spots when cleaning up. The next morning you notice that the stains look quite different on different surfaces. What has happened? In droplets of liquid ...

Part of testing and screening drugs involves evaluating the necessary concentration of their chemical components. Concentration gradients, or gradual changes in the ...

Transient concentration gradients generated and detected electrochemically in continuous flow microchannels were investigated by numerical simulations and amperometric measurements. Operating ...

Morphogens are secreted signalling molecules that organize a field of surrounding cells into patterns. They form a gradient of concentration emanating from a localized source, and determine the ...

Molecular Biology Center, State Key Laboratory of Trauma, Burn, and Combined Injury, Research Institute of Surgery and Daping Hospital, Third Military Medical University, Chongqing, China It is widely ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Chemically induced transport methods open up new opportunities for colloidal transport ...

Abstract: Microfluidic is now a common tool for developing chemical or biological applications. One of the main particularities of microfluidic is the difficulty to mix several products due to the ...

Department of Mathematics, Christ University, Bangalore, India. Department of Mathematics, Faculty of Engineering, Christ University, Bangalore, India. The effect of non-uniform basic concentration ...

Intracellular protein gradients serve a variety of functions, such as the establishment of cell polarity or to provide positional information for gene expression in developing embryos. Given that cell ...

Abstract: An enhanced finite element modeling methodology based on commercial software ANSYS Multi-physics and FORTRAN code is developed for the simulation of electromigration. The electronic ...

In Drosophila, graded expression of the maternal transcription factor Bicoid (Bcd) provides positional information to activate target genes at different positions along the anterior-posterior axis. We ...