Polystyrene Attached Pt(IV)–Azomethine, Synthesis and Immobilization of Glucose Oxidase Enzyme

International Journal of Molecular Sciences

Nurᗾn Sarı²  Esin Antepli²  Dilek Nartop¹ 

[1] Department of Chemistry, Faculty of Arts and Science, Nevşehir University, Nevşehir 50300, Turkey; E-Mail:;Department of Chemistry, Faculty of Science, Gazi University, Ankara 06500, Turkey; E-Mails:

关键词: Pt(IV)—azomethine;    Polystyrene;    glucose oxidase enzyme;    two optimum pH;   

DOI  :  10.3390/ijms130911870

来源: mdpi

【 摘 要 】

Modified polystyrene with Pt(IV)–azomethine (APS–Sch–Pt) was synthesized by means of condensation and demonstrated to be a promising enzyme support by studying the enzymatic properties of glucose oxidase enzyme (GOx) immobilized on it. The characteristics of the immobilized glucose oxidase (APS–Sch–Pt–GOx) enzyme showed two optimum pH values that were pH = 4.0 and pH = 7. The insertion of stable Pt(IV)–azomethine spacers between the polystyrene backbone and the immobilized GOx, (APS–Sch–Pt–GOx), increases the enzymes’ activity and improves their affinity towards the substrate even at pH = 4. The influence of temperature, reusability and storage capacity on the free and immobilized glucose oxidase enzyme was investigated. The storage stability of the immobilized glucose oxidase was shown to be eleven months in dry conditions at +4 °C.

【 授权许可】

CC BY   
© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.