Penicillinase-based amperometric biosensor for penicillin G

Amperometric biosensor for ascorbic acid

A L-ascorbic acid biosensor based on ascorbate oxidase has been developed. The enzyme was extracted from the mesocarp of cucumber (Cucumis sativus) by using 0.05 mol L phosphate buffer, pH 5.8 containing 0.5 mol L NaCl. After the dialysis versus phosphate buffer 0.05 mol L pH 5.8, the enzyme was immobilized onto nylon net through glutaraldehyde covalent bond. The membrane was coupled to an O 2 ...

Amperometric biosensor for xanthine determination based on Fe3O4 nanoparticles.

An amperometric xanthine biosensor was developed based on the immobilization of xanthine oxidase (XO) into the Fe3O4 nanoparticles modified carbon paste. Electron transfer properties of unmodified and Fe3O4 nanoparticles modified carbon paste electrodes were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. Fe3O4 nanoparticles increased electroactive surface area of...

Amperometric Biosensor for Diagnosis of Disease

ZnO Nanorods Based Enzymatic Biosensor for Selective Determination of Penicillin

In this study, we have successfully demonstrated the fabrication of a biosensor based on well aligned single-crystal zinc oxide (ZnO) nanorods which were grown on gold coated glass substrate using a low temperature aqueous chemical growth (ACG) method. The ZnO nanorods were immobilized with penicillinase enzyme using the physical adsorption approach in combination with N-5-azido-2-nitrobenzoylo...

Amperometric Biosensor based on Prussian Blue Nanoparticle-modified

25 26 Glucose-6-phosphate (G6P) plays an important role in carbohydrate metabolism of all living 27 organisms. Compared to the conventional analytical methods available for estimation of G6P, the 28 biosensors having relative simplicity, specificity, low-cost and fast response time are a promising 29 alternative. We have reported a G6P biosensor based on screen-printed electrode utilizing 30 Pr...