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- W2137052242 abstract "In the study, porcine pancrease lipase (PPL) was covalently immobilized on the surface of silica-coated modified magnetite nanoparticles. The synthesis process consists of the following steps: (1) preparing magnetic iron oxide nanoparticles using the co-precipitation method, (2) coating NP with silica (SiO2) by sol–gel reaction, (3) preparing amino-functionalized magnetite NPs by treating silica-coated NPs with 3-aminopropyltriethoxysilane, (4) activating immobilization of PPL on the activated amino- functionalized magnetite NPs, and (5) covalently immobilization of PPL on the activated- amino- functionalized magnetite NPs. The synthesis steps and characterizations of NPs were examined by FT-IR, XRD, EDX and TEM. The optimized conditions were determined for the immobilization step. The thermal, pH and storage stability of immobilized PPL were measured and compared with the free PPL. The results represented the substantial enhancement of these stabilities due to immobilization. The measurement of Michaelis–Menten parameters (Km and Vmax) also revealed the considerable improvement of immobilized PPL." @default.
- W2137052242 created "2016-06-24" @default.
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- W2137052242 date "2012-01-01" @default.
- W2137052242 modified "2023-10-03" @default.
- W2137052242 title "Enhancement of stability and catalytic activity of immobilized lipase on silica-coated modified magnetite nanoparticles" @default.
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- W2137052242 doi "https://doi.org/10.1016/j.cej.2011.10.097" @default.
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