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Dr. Yinghua Yan, Zhifang Zheng, Yan Li, Prof. Chunhui Deng and Prof. Xiangmin Zhang Titanium(IV)-Immobilized Hydrophilic Hierarchically Ordered Macro-/Mesoporous Silica for Fast Enrichment of Phosphopeptides ChemPlusChem 79

Article first published online: 11 MAR 2014 | DOI: 10.1002/cplu.201300411

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Signal enhancement: Nanocomposites with a polydopamine coating on hierarchically ordered macro-/mesoporous silica and functionalized with titanium ions (HOMMS-PD-Ti4+) were prepared through a facile reaction (see picture). By taking advantage of the pure phosphate–Ti4+ interface and high loading amount of Ti4+, the composites present remarkable selectivity for phosphopeptides with a rapid enrichment speed.

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