{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T20:40:32Z","timestamp":1767904832003,"version":"3.49.0"},"reference-count":39,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2010,3,22]],"date-time":"2010-03-22T00:00:00Z","timestamp":1269216000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2010,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Chromatography is one of the key operations in the downstream processing of plasmid DNA (pDNA). However, the increased demand for highly purified pDNA experienced in recent years has made clear the need for alternative processes capable of retaining the advantages of conventional chromatography, such as selectivity, while providing increased throughput at a lower cost. The work presented in this article outlines the development and optimization of an alternative hydrophobic interaction membrane chromatography process for the purification of pDNA. The studies included the modification of functionalized membrane supports with a linear alkyl chain ligand and the testing of chromatographic performance of these membranes. Three modification procedures were tested and the membranes were screened for their capacity and selectivity. The modified membranes could separate the model plasmid pVAX1\u2010LacZ (6050\u2009bp) from impurities in clarified <jats:italic>Escherichia coli<\/jats:italic> cell lysates (specifically RNA), with good resolution. Subsequent optimization of elution profiles with the best\u2010performing modified membrane, resulted in a high purification factor of 4.7, competitive with its bead process counterpart, and a plasmid yield of 73%.<\/jats:p>","DOI":"10.1002\/jssc.200900844","type":"journal-article","created":{"date-parts":[[2010,3,22]],"date-time":"2010-03-22T03:48:54Z","timestamp":1269229734000},"page":"1175-1184","source":"Crossref","is-referenced-by-count":27,"title":["Hydrophobic interaction membrane chromatography for plasmid DNA purification: Design and optimization"],"prefix":"10.1002","volume":"33","author":[{"given":"Lu\u00eds Raiado","family":"Pereira","sequence":"first","affiliation":[]},{"given":"D. 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