Designing flexible low-viscous sieving media for capillary electrophoresis analysis of ribonucleic acids

Journal of Chromatography. a
Louis De ScheerderEivor Örnskov

Abstract

Modified messenger RNA (mRNA) has recently become a new prospective class of drug product. Consequently, stability indicating separation methods are needed to progress pharmaceutical development of mRNA. A promising separation technique for the analysis of mRNA is capillary gel electrophoresis (CGE). We designed a flexible, low-viscous sieving medium for CGE, based on high mass linear polyvinylpyrrolidone (PVP) and glycerol. A Central Composite Face-centered design resulted in a strong model that allowed us to predict suitable sieving media compositions by using multi-objective optimization. The way of working proposed in this paper gives analysts the freedom to design a suitable sieving medium for their response(s) of interest, for purity and stability analysis of polynucleotides with a size around 100-1000 bases. Depending on the criteria for the analysis there will be a trade-off between different suitable conditions. By using this method, we created a sieving medium that was able to improve resolution, peak height and analysis time of an RNA ladder compared to the current commercially available separation gels.

References

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Citations

Apr 28, 2019·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Sayyed Hashem SajjadiHossein Ahmadzadeh

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