Obtaining pure DNA plasmids from bacteria are frequently carried out by lysing the cells and separating the plasmids through filter columns. Hudson offers a fully automated solution to this application. Plasmid purification is a technique used to isolate and purify plasmid DNA from genomic DNA, proteins, ribosomes, and the bacterial cell wall. A plasmid is a small, circular, double-stranded DNA that is used as a carrier of specific DNA molecules. When introduced into a host organism via transformation, a plasmid will be replicated, creating numerous copies of the DNA fragment under study.