Size exclusion chromatography (SEC) separates components of a sample on the basis of their molecular size. Differential exclusion or inclusion of the molecules is achieved via filtration through a gel ...

The bulk physical properties such as strength and toughness of materials such as synthetic and natural polymers, or the activity and efficacy of proteins and biopharmaceuticals are strongly dependent ...

For the novice protein purifier, finding a place to start might seem overwhelming, but fortunately the process can be approached systematically. Andrew Mitchell, technical consultant for Amersham ...