Development of online assay for human neutrophil elastase (HNE) inhibition by CZE-LIF.
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DMSO induces adverse HNE agglomeration as shown by microscale thermophoresis (MST).
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IC50 of ursolic and oleanolic acid toward HNE accurately determined by CZE-LIF.
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Comparable Ki constant determined by MST and CE which validated the developed assays.
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MST and CE are complementary techniques for studying biomolecule interactions.
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