Critical concentration gradient model is helpful in understanding the mechanism of Z-ring formation. The distribution of positive and negative regulators of Z-ring formation in cell is not random ...

A typical concentration cell was built using a small (21 mm × 11 mm × 12 mm) plastic container with two square copper-sheet electrodes (each of area S = 10 mm × 10 mm and spaced by L = 20 mm ...

Diffusion Substances move from a high to a low concentration down a concentration gradient Carbon dioxide, oxygen, water, food substances, wastes, eg urea No Osmosis Water moves from a high to a ...

By using a low-viscosity silicone oil and fine-tuning the fabrication process, they've made the SlipChip more reliable for cell-based experiments and simpler for creating concentration gradients.