31. Condensers and carbon adsorption units trap organic compounds for subsequent treatment or disposal. 32. Steric effects can also hinder particle adsorption to surfaces. 33. Polymers are of great importance when considering protein adsorption in the biomedical arena. 34. The PEG coating consists of hydrophilic molecules that are repulsive to protein adsorption . 35. The adsorption of a monolayer of gas atoms is either commensurate or incommensurate. 36. For more information on polyelectrolyte adsorption , look here. 37. There is a thermodynamic equilibrium between adsorption sites and adsorbents in the air. 38. They can be used to reduce the adsorption of proteins to biomaterial surfaces. 39. Adsorption is the ability to spontaneously form a very thin layer on a surface.40. After treatment the adsorption column can be reused.