In chemical science, dialysis refers to the process of separation of suspended colloidal particles from dissolved ions or molecules of small dimensions (Figure 1). Separation occurs due to their unequal rates of diffusion through the pores of a semipermeable membrane, such as dialysis tubing. The process of dialysis was first observed in 1861 by a … Read More


Osmosis is a movement of water from region of high water concentration to region of low water concentration through a semi-permeable membrane until a state of dynamic equilibrium is reached (Figure 1). It is a passive process.  Water molecules are free to pass across the cell membrane in both directions. As the concentration of water … Read More

Chemical Separation Techniques

Chemical separation techniques play a key role in analyzing molecules or compounds used for biological, physical, and chemical research. They are a powerful tool set to investigate mechanisms of various biological processes. It is used to separate a mixture into its two or more distinct components, which are used further for the analysis of physical … Read More