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Immobilisation of Deoxyribonuclease I Via Epoxy Groups of CIM® Methacrylate Monoliths

Traces of DNA in RNA samples represent impurities that could affect results of mRNA quantification and cDNA synthesis. In most cases, the DNA impurities in RNA samples are removed using enzyme deoxyribonuclease (DNase), which specifically breaks down DNA. In order to avoid the addition of DNase into the analyzing sample, the use of immobilized DNase on solid support is recommended. Because of the DNA size, very few supports available on the market enable efficient interaction between immobilized enzyme and DNA.

In recent years a new group of supports named monoliths was introduced. Because of enhanced exchange between mobile and stationary phase separation and bioconversion processes are significantly accelerated. Therefore also the efficiency of DNA removal using immobilised enzyme might be competitive to the degradation with free enzyme.


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