1 Ocak 2010 Dergi makalesi Açık Erişim

Uzun, K.; Cevik, E.; Senel, M.; Sozeri, H.; Baykal, A.; Abasiyanik, M. F.; Toprak, M. S.

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    <subfield code="a">In this study, polyamidoamine (PAMAM) dendrimer was synthesized on the surface of superparamagnetite nanoparticles to enhance invertase immobilization. The amount of immobilized enzyme on the surface-hyperbranched magnetite nanoparticle was up to 2.5 times (i.e., 250%) as much as that of magnetite nanoparticle modified with only amino silane. Maximum reaction rate (V (max)) and Michaelis-Menten constant (K (m)) were determined for the free and immobilized enzymes. Various characteristics of immobilized invertase such as; the temperature activity, thermal stability, operational stability, and storage stability were evaluated and results revealed that stability of the enzyme is improved upon immobilization.</subfield>
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    <subfield code="a">Uzun, K.</subfield>
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    <subfield code="a">Covalent immobilization of invertase on PAMAM-dendrimer modified superparamagnetic iron oxide nanoparticles</subfield>
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