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Yonghui Deng, Chunhui Deng, Dawei Qi, Chong Liu, Jia Liu, Xiangmin Zhang and Dongyuan Zhao Synthesis of Core/Shell Colloidal Magnetic Zeolite Microspheres for the Immobilization of Trypsin Advanced Materials 21

Article first published online: 12 JAN 2009 | DOI: 10.1002/adma.200801766

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Magnetic zeolite microspheres are synthesized by combining sol-gel synthesis and vapor-phase transport. The microspheres, which have magnetite cores and crystalline zeolite shells (see figure), exhibit super-paramagnetism and a high adsorption capacity for trypsin. Trypsin-adsorbed microspheres digest proteins very efficiently (in only 15 s) in the presence of microwave radiation.

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