Citation:
LI Tian-Tian, ZHANG Li-Yuan, YU Zhen-Long, MA Xiao-Chi, DENG Sa. Synthesis of Boronic Acid-functionalized Soluble Dendrimers and Its Application in Detection of Human Liver Microsomal Glycoprotein Based on Enzyme-linked Immunosorbent Assay[J]. Chinese Journal of Analytical Chemistry,
;2017, 45(9): 1259-1263.
doi:
10.11895/j.issn.0253-3820.170251
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The glycoproteins in the biological sample are low abundance and are susceptible to be inhibited and interfered by other non-glycoproteins. An enrichment step is usually required before the glycoprotein analysis, but the operation steps of conventional solid-phase-based glycoprotein enrichment methods are difficult to be compatible with the most classical enzyme-linked immune sorbent assay (ELISA) technique. In this study, a novel water-soluble dendrimer based boronic acid capture (DBC) material was developed using PAMAM 4.0 as the carrier and boronic acid as the affinity group. The method was applied to the detection of glycoproteins in human liver microsomes using ELISA. In this study, the DBC enrichment conditions were optimized by model glycoprotein, and then its sensitivity and anti-interference ability were investigated. This method was applied to the enrichment of glycoproteinsin human liver microsomal. The results showed that the enrichment selectivity of DBC for glycoprotein could be up to 100000 folds, and the enrichment signal of glycoprotein could be increased by 100 times. Therefore, the ELISA method using DBC as a novel enrichment material for glycoprotein had high sensitivity and selectivity in detection of biological samples with only one simple incubation step, which was useful for glycoproteins researches.
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Keywords:
- Glycoprotein,
- Boronic acid,
- Dendrimer,
- Enrichment
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