Affinity chromatography approaches to overcome the challenges of purifying plasmid DNA

F Sousa, DMF Prazeres, JA Queiroz - Trends in biotechnology, 2008 - cell.com
The diversity of biomolecules present in plasmid DNA (pDNA)-containing extracts and the
structural and chemical similarities between pDNA and impurities are some of the main …

[HTML][HTML] Cryogels and Monoliths: Promising Tools for Chromatographic Purification of Nucleic Acids

J Ribeiro, MÂ Luís, B Rodrigues, FM Santos… - Gels, 2024 - mdpi.com
The increasing demand for highly pure biopharmaceuticals has put significant pressure on
the biotechnological industry to innovate in production and purification processes. Nucleic …

Improvement of transfection efficiency by using supercoiled plasmid DNA purified with arginine affinity chromatography

F Sousa, DMF Prazeres… - The Journal of Gene …, 2009 - Wiley Online Library
Background It is well known that the success of gene transfer to cells and subsequent
expression is strictly affected by the vector manufacturing process. Several challenges …

Poly (hydroxyethyl methacrylate) based affinity cryogel for plasmid DNA purification

I Perçin, E Sağlar, H Yavuz, E Aksöz… - International journal of …, 2011 - Elsevier
The aim of this study is to prepare supermacroporous pseudospecific cryogel which can be
used for the purification of plasmid DNA (pDNA) from bacterial lysate. N-methacryloyl-(l) …

Selective purification of supercoiled plasmid DNA from clarified cell lysates with a single histidine–agarose chromatography step

F Sousa, S Freitas, AR Azzoni… - Biotechnology and …, 2006 - Wiley Online Library
The ability to isolate sc (supercoiled) pDNA (plasmid DNA) isoform should be one of the
features of a pDNA purification process, eliminating sample contaminants such as RNA …

Specific recognition of supercoiled plasmid DNA in arginine affinity chromatography

F Sousa, T Matos, DMF Prazeres, JA Queiroz - Analytical biochemistry, 2008 - Elsevier
Arginine chromatography was used to fully separate supercoiled and open circular plasmid
DNA (pDNA) isoforms. The results show that the arginine matrix promotes multiple …

Poly (hydroxyethyl methacrylate) based magnetic nanoparticles for plasmid DNA purification from Escherichia coli lysate

I Perçin, V Karakoç, S Akgöl, E Aksöz… - Materials Science and …, 2012 - Elsevier
The aim of this study is to prepare poly (hydroxyethyl methacrylate-N-methacryloyl-(L)-
histidine)[PHEMAH] magnetic nanoparticles for plasmid DNA (pDNA) purification from …

Differential interactions of plasmid DNA, RNA and genomic DNA with amino acid‐based affinity matrices

A Sousa, F Sousa, JA Queiroz - Journal of separation science, 2010 - Wiley Online Library
The development of a strategy to plasmid DNA (pDNA) purification has become necessary
for the development of gene therapy and DNA vaccine production processes in recent years …

Purification of human papillomavirus 16 E6/E7 plasmid deoxyribonucleic acid-based vaccine using an arginine modified monolithic support

A Soares, JA Queiroz, F Sousa, A Sousa - Journal of Chromatography A, 2013 - Elsevier
The development of efficient plasmid DNA (pDNA) purification processes has fostered
therapeutic applications like gene therapy and DNA vaccination. In fact, monolithic supports …

[PDF][PDF] High efficiency method to obtain supercoiled DNA with a commercial plasmid purification kit

A Carbone, F Fioretti, L Fucci… - Acta biochimica …, 2012 - frontierspartnerships.org
Supercoiled state corresponds to the active form for plasmid applications. The relaxed
circular form of plasmids is often inactive or poorly active. To obtain significant amounts of …