Xanthine Sensor Based on Xanthine Oxidase Immobilized in Poly (p-Benzoquinone) Film
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چکیده
منابع مشابه
Study of xanthine oxidase immobilized electrode based on modified graphite.
Xanthine oxidase (E. C. 1.2.3.2) was immobilized by adsorption on electrochemically modified graphite plate to obtain an enzyme electrode. The current of the enzyme electrode in substrate (xanthine) solutions was found to be a result of the electrooxidation of H2O2 generated in the enzyme layer. The linearity of the amperometric signal was up to a substrate concentration of 65 microM at 0.6 V (...
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In this study, xanthine oxidase immobilized silica coated Fe3O4 nanoparticles (Fe3O4@SiO2-XO) were successfully prepared and characterized by transmission electron microscope, X-ray powder diffraction, Fourier transform infrared spectroscopy and vibrating sample magnetometer. The average diameter of the Fe3O4 nanoparticles was about 300 nm to 350 nm with a shell thickness of 60 nm. The maximum ...
متن کاملStudies on xanthine oxidase during carcinogenesis by p-dimethylaminoazobenzene.
Protein and riboflavin deficiencies (11, 17, 1, 7) seem to be major dietary factors involved in the production of liver cancers by feeding p-dimethylaminoazobenzene. The quantity and type of fat in the diet also appear to be important in this process (14, 18), and other dietary factors, such as biotin, play a role under certain conditions (8, 22). Con versely, a major effect of feeding p-dimeth...
متن کاملP-91: Vitamin E and Selenium Supplementation Affects Aldehyde Oxidase, Xanthine Dehydrogenase/Oxidase Activities In Diabetic Rat Ovaries
Background Any factor like diabetes that changes the oxidant/antioxidant balance in favor of oxidants could possibly disrupt the physiologic function of ovaries. So, we have investigated the effect of vitamin E and Se supplements on antioxidant defense in ovaries of diabetic rats with focus on Xanthine dehydrogenase/oxidase (XDH/XO) and Aldehyde oxidase (AO) activities. MaterialsAndMethods This...
متن کاملXanthine oxidase: introductory remarks.
At the 661st Meeting of the Biochemical Society, held at Bath, the Host Colloquium, a joint meeting with the Society for Free Radical Research, took place on 10th and 11th April 1997. Its title was ‘Xanthine oxidase: enzymology and pathophysiology’. The two aspects of xanthine oxidase research specified in the Colloquium title have developed remarkably separately, and, for a number of reasons, ...
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ژورنال
عنوان ژورنال: Denki Kagaku oyobi Kogyo Butsuri Kagaku
سال: 1993
ISSN: 0366-9297,2434-2556
DOI: 10.5796/electrochemistry.61.893