An iminium dication was designed as a high-affinity and easily removable guest for cucurbit[7]uril (CB[7]). X-ray crystallographic analysis shows that maximized N···O═C ion-dipole interactions and perfect packing coefficient are responsible for the high affinity of for CB[7] ( > 10 M). Under alkaline conditions, included in CB[7]· is hydrolyzed into 2,6-adamantanedione and pyrrolidine that can be fully removed by further extraction, enabling the recycling of CB[7] materials.
View Article and Find Full Text PDFThe aim of this study is to quantify the 146S antigen in foot-and-mouth disease virus (FMDV) inactivated vaccine by size-exclusion chromatography (SEC). The analysis was performed on a TSKgel G4000SWXL column (7.8 mm×30 cm), with a pH 7.
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