期刊
ANALYST
卷 137, 期 11, 页码 2600-2607出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2an16087k
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资金
- Galab Laboratories GmbH (Geesthacht, Germany)
- Federal Ministry of Education and Research (BMBF) [0315333B]
Hydrophilic poly(ethylene glycol)-based monoliths were synthesized in the spin-tip format for high-throughput applications via pulsed electron beam irradiation. Monoliths with a homogeneous porous structure and a total porosity of 69% were obtained. The cross-linked polymeric structure was further mechanically stabilized via the incorporation of silica nanoparticles. Amino-functionalization of the monoliths was accomplished by a straightforward, water-based, one-step approach that entailed the electron-beam irradiation-induced grafting of poly(allylamine). The amine functionalized spin columns showed very low unspecific protein adsorption and were successfully applied as adsorbents in lectin affinity chromatography for the purification of ovalbumin. The novel columns also outperformed a commercially available system.
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