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In this study, we use natural halloysite nanotubes as novel support materials to immobilize enzymes. Two typical industrial enzymes (α-amylase and urease) with different sizes were immobilized in channels of the nanotubes through simple physical adsorption. After 60min heating, both immobilized enzymes retained more than 80% activity. Stored for 15days, the immobilized enzymes still showed more than...
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