Synthesis of branched PEG brushes hybrid hydrophilic magnetic nanoparticles for the selective enrichment of N-linked glycopeptides.

Hybrid Fe(3)O(4)@SiO(2)@PEG-Maltose MNPs were synthesized by SI-ATRP of branched PEG brushes on the surface and subsequent functionalization with hydrophilic maltose group, and the multifunctional materials were utilized for selective enrichment of N-linked glycopeptides from biological samples with high specifity, high sensitivity, and large binding capacity.